diff options
Diffstat (limited to 'media/ffvpx/libavcodec/utils.c')
| -rw-r--r-- | media/ffvpx/libavcodec/utils.c | 4230 |
1 files changed, 4230 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/utils.c b/media/ffvpx/libavcodec/utils.c new file mode 100644 index 000000000..f7adb525f --- /dev/null +++ b/media/ffvpx/libavcodec/utils.c @@ -0,0 +1,4230 @@ +/* + * utils for libavcodec + * Copyright (c) 2001 Fabrice Bellard + * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * utils. + */ + +#include "config.h" +#include "libavutil/atomic.h" +#include "libavutil/attributes.h" +#include "libavutil/avassert.h" +#include "libavutil/avstring.h" +#include "libavutil/bprint.h" +#include "libavutil/channel_layout.h" +#include "libavutil/crc.h" +#include "libavutil/frame.h" +#include "libavutil/hwcontext.h" +#include "libavutil/internal.h" +#include "libavutil/mathematics.h" +#include "libavutil/mem_internal.h" +#include "libavutil/pixdesc.h" +#include "libavutil/imgutils.h" +#include "libavutil/samplefmt.h" +#include "libavutil/dict.h" +#include "libavutil/thread.h" +#include "avcodec.h" +#include "libavutil/opt.h" +#include "me_cmp.h" +#include "mpegvideo.h" +#include "thread.h" +#include "frame_thread_encoder.h" +#include "internal.h" +#include "raw.h" +#include "bytestream.h" +#include "version.h" +#include <stdlib.h> +#include <stdarg.h> +#include <limits.h> +#include <float.h> +#if CONFIG_ICONV +# include <iconv.h> +#endif + +#include "libavutil/ffversion.h" +const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION; + +#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS +static int default_lockmgr_cb(void **arg, enum AVLockOp op) +{ + void * volatile * mutex = arg; + int err; + + switch (op) { + case AV_LOCK_CREATE: + return 0; + case AV_LOCK_OBTAIN: + if (!*mutex) { + pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t)); + if (!tmp) + return AVERROR(ENOMEM); + if ((err = pthread_mutex_init(tmp, NULL))) { + av_free(tmp); + return AVERROR(err); + } + if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) { + pthread_mutex_destroy(tmp); + av_free(tmp); + } + } + + if ((err = pthread_mutex_lock(*mutex))) + return AVERROR(err); + + return 0; + case AV_LOCK_RELEASE: + if ((err = pthread_mutex_unlock(*mutex))) + return AVERROR(err); + + return 0; + case AV_LOCK_DESTROY: + if (*mutex) + pthread_mutex_destroy(*mutex); + av_free(*mutex); + avpriv_atomic_ptr_cas(mutex, *mutex, NULL); + return 0; + } + return 1; +} +static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb; +#else +static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL; +#endif + + +volatile int ff_avcodec_locked; +static int volatile entangled_thread_counter = 0; +static void *codec_mutex; +static void *avformat_mutex; + +void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size) +{ + uint8_t **p = ptr; + if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { + av_freep(p); + *size = 0; + return; + } + if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1)) + memset(*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); +} + +void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size) +{ + uint8_t **p = ptr; + if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { + av_freep(p); + *size = 0; + return; + } + if (!ff_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE, 1)) + memset(*p, 0, min_size + AV_INPUT_BUFFER_PADDING_SIZE); +} + +/* encoder management */ +static AVCodec *first_avcodec = NULL; +static AVCodec **last_avcodec = &first_avcodec; + +AVCodec *av_codec_next(const AVCodec *c) +{ + if (c) + return c->next; + else + return first_avcodec; +} + +static av_cold void avcodec_init(void) +{ + static int initialized = 0; + + if (initialized != 0) + return; + initialized = 1; + + if (CONFIG_ME_CMP) + ff_me_cmp_init_static(); +} + +int av_codec_is_encoder(const AVCodec *codec) +{ + return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame); +} + +int av_codec_is_decoder(const AVCodec *codec) +{ + return codec && (codec->decode || codec->send_packet); +} + +av_cold void avcodec_register(AVCodec *codec) +{ + AVCodec **p; + avcodec_init(); + p = last_avcodec; + codec->next = NULL; + + while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec)) + p = &(*p)->next; + last_avcodec = &codec->next; + + if (codec->init_static_data) + codec->init_static_data(codec); +} + +#if FF_API_EMU_EDGE +unsigned avcodec_get_edge_width(void) +{ + return EDGE_WIDTH; +} +#endif + +#if FF_API_SET_DIMENSIONS +void avcodec_set_dimensions(AVCodecContext *s, int width, int height) +{ + int ret = ff_set_dimensions(s, width, height); + if (ret < 0) { + av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height); + } +} +#endif + +int ff_set_dimensions(AVCodecContext *s, int width, int height) +{ + int ret = av_image_check_size(width, height, 0, s); + + if (ret < 0) + width = height = 0; + + s->coded_width = width; + s->coded_height = height; + s->width = AV_CEIL_RSHIFT(width, s->lowres); + s->height = AV_CEIL_RSHIFT(height, s->lowres); + + return ret; +} + +int ff_set_sar(AVCodecContext *avctx, AVRational sar) +{ + int ret = av_image_check_sar(avctx->width, avctx->height, sar); + + if (ret < 0) { + av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n", + sar.num, sar.den); + avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; + return ret; + } else { + avctx->sample_aspect_ratio = sar; + } + return 0; +} + +int ff_side_data_update_matrix_encoding(AVFrame *frame, + enum AVMatrixEncoding matrix_encoding) +{ + AVFrameSideData *side_data; + enum AVMatrixEncoding *data; + + side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING); + if (!side_data) + side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING, + sizeof(enum AVMatrixEncoding)); + + if (!side_data) + return AVERROR(ENOMEM); + + data = (enum AVMatrixEncoding*)side_data->data; + *data = matrix_encoding; + + return 0; +} + +void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, + int linesize_align[AV_NUM_DATA_POINTERS]) +{ + int i; + int w_align = 1; + int h_align = 1; + AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt); + + if (desc) { + w_align = 1 << desc->log2_chroma_w; + h_align = 1 << desc->log2_chroma_h; + } + + switch (s->pix_fmt) { + case AV_PIX_FMT_YUV420P: + case AV_PIX_FMT_YUYV422: + case AV_PIX_FMT_YVYU422: + case AV_PIX_FMT_UYVY422: + case AV_PIX_FMT_YUV422P: + case AV_PIX_FMT_YUV440P: + case AV_PIX_FMT_YUV444P: + case AV_PIX_FMT_GBRP: + case AV_PIX_FMT_GBRAP: + case AV_PIX_FMT_GRAY8: + case AV_PIX_FMT_GRAY16BE: + case AV_PIX_FMT_GRAY16LE: + case AV_PIX_FMT_YUVJ420P: + case AV_PIX_FMT_YUVJ422P: + case AV_PIX_FMT_YUVJ440P: + case AV_PIX_FMT_YUVJ444P: + case AV_PIX_FMT_YUVA420P: + case AV_PIX_FMT_YUVA422P: + case AV_PIX_FMT_YUVA444P: + case AV_PIX_FMT_YUV420P9LE: + case AV_PIX_FMT_YUV420P9BE: + case AV_PIX_FMT_YUV420P10LE: + case AV_PIX_FMT_YUV420P10BE: + case AV_PIX_FMT_YUV420P12LE: + case AV_PIX_FMT_YUV420P12BE: + case AV_PIX_FMT_YUV420P14LE: + case AV_PIX_FMT_YUV420P14BE: + case AV_PIX_FMT_YUV420P16LE: + case AV_PIX_FMT_YUV420P16BE: + case AV_PIX_FMT_YUVA420P9LE: + case AV_PIX_FMT_YUVA420P9BE: + case AV_PIX_FMT_YUVA420P10LE: + case AV_PIX_FMT_YUVA420P10BE: + case AV_PIX_FMT_YUVA420P16LE: + case AV_PIX_FMT_YUVA420P16BE: + case AV_PIX_FMT_YUV422P9LE: + case AV_PIX_FMT_YUV422P9BE: + case AV_PIX_FMT_YUV422P10LE: + case AV_PIX_FMT_YUV422P10BE: + case AV_PIX_FMT_YUV422P12LE: + case AV_PIX_FMT_YUV422P12BE: + case AV_PIX_FMT_YUV422P14LE: + case AV_PIX_FMT_YUV422P14BE: + case AV_PIX_FMT_YUV422P16LE: + case AV_PIX_FMT_YUV422P16BE: + case AV_PIX_FMT_YUVA422P9LE: + case AV_PIX_FMT_YUVA422P9BE: + case AV_PIX_FMT_YUVA422P10LE: + case AV_PIX_FMT_YUVA422P10BE: + case AV_PIX_FMT_YUVA422P16LE: + case AV_PIX_FMT_YUVA422P16BE: + case AV_PIX_FMT_YUV440P10LE: + case AV_PIX_FMT_YUV440P10BE: + case AV_PIX_FMT_YUV440P12LE: + case AV_PIX_FMT_YUV440P12BE: + case AV_PIX_FMT_YUV444P9LE: + case AV_PIX_FMT_YUV444P9BE: + case AV_PIX_FMT_YUV444P10LE: + case AV_PIX_FMT_YUV444P10BE: + case AV_PIX_FMT_YUV444P12LE: + case AV_PIX_FMT_YUV444P12BE: + case AV_PIX_FMT_YUV444P14LE: + case AV_PIX_FMT_YUV444P14BE: + case AV_PIX_FMT_YUV444P16LE: + case AV_PIX_FMT_YUV444P16BE: + case AV_PIX_FMT_YUVA444P9LE: + case AV_PIX_FMT_YUVA444P9BE: + case AV_PIX_FMT_YUVA444P10LE: + case AV_PIX_FMT_YUVA444P10BE: + case AV_PIX_FMT_YUVA444P16LE: + case AV_PIX_FMT_YUVA444P16BE: + case AV_PIX_FMT_GBRP9LE: + case AV_PIX_FMT_GBRP9BE: + case AV_PIX_FMT_GBRP10LE: + case AV_PIX_FMT_GBRP10BE: + case AV_PIX_FMT_GBRP12LE: + case AV_PIX_FMT_GBRP12BE: + case AV_PIX_FMT_GBRP14LE: + case AV_PIX_FMT_GBRP14BE: + case AV_PIX_FMT_GBRP16LE: + case AV_PIX_FMT_GBRP16BE: + case AV_PIX_FMT_GBRAP12LE: + case AV_PIX_FMT_GBRAP12BE: + case AV_PIX_FMT_GBRAP16LE: + case AV_PIX_FMT_GBRAP16BE: + w_align = 16; //FIXME assume 16 pixel per macroblock + h_align = 16 * 2; // interlaced needs 2 macroblocks height + break; + case AV_PIX_FMT_YUV411P: + case AV_PIX_FMT_YUVJ411P: + case AV_PIX_FMT_UYYVYY411: + w_align = 32; + h_align = 16 * 2; + break; + case AV_PIX_FMT_YUV410P: + if (s->codec_id == AV_CODEC_ID_SVQ1) { + w_align = 64; + h_align = 64; + } + break; + case AV_PIX_FMT_RGB555: + if (s->codec_id == AV_CODEC_ID_RPZA) { + w_align = 4; + h_align = 4; + } + break; + case AV_PIX_FMT_PAL8: + case AV_PIX_FMT_BGR8: + case AV_PIX_FMT_RGB8: + if (s->codec_id == AV_CODEC_ID_SMC || + s->codec_id == AV_CODEC_ID_CINEPAK) { + w_align = 4; + h_align = 4; + } + if (s->codec_id == AV_CODEC_ID_JV) { + w_align = 8; + h_align = 8; + } + break; + case AV_PIX_FMT_BGR24: + if ((s->codec_id == AV_CODEC_ID_MSZH) || + (s->codec_id == AV_CODEC_ID_ZLIB)) { + w_align = 4; + h_align = 4; + } + break; + case AV_PIX_FMT_RGB24: + if (s->codec_id == AV_CODEC_ID_CINEPAK) { + w_align = 4; + h_align = 4; + } + break; + default: + break; + } + + if (s->codec_id == AV_CODEC_ID_IFF_ILBM) { + w_align = FFMAX(w_align, 8); + } + + *width = FFALIGN(*width, w_align); + *height = FFALIGN(*height, h_align); + if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) { + // some of the optimized chroma MC reads one line too much + // which is also done in mpeg decoders with lowres > 0 + *height += 2; + + // H.264 uses edge emulation for out of frame motion vectors, for this + // it requires a temporary area large enough to hold a 21x21 block, + // increasing witdth ensure that the temporary area is large enough, + // the next rounded up width is 32 + *width = FFMAX(*width, 32); + } + + for (i = 0; i < 4; i++) + linesize_align[i] = STRIDE_ALIGN; +} + +void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); + int chroma_shift = desc->log2_chroma_w; + int linesize_align[AV_NUM_DATA_POINTERS]; + int align; + + avcodec_align_dimensions2(s, width, height, linesize_align); + align = FFMAX(linesize_align[0], linesize_align[3]); + linesize_align[1] <<= chroma_shift; + linesize_align[2] <<= chroma_shift; + align = FFMAX3(align, linesize_align[1], linesize_align[2]); + *width = FFALIGN(*width, align); +} + +int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos) +{ + if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB) + return AVERROR(EINVAL); + pos--; + + *xpos = (pos&1) * 128; + *ypos = ((pos>>1)^(pos<4)) * 128; + + return 0; +} + +enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos) +{ + int pos, xout, yout; + + for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) { + if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos) + return pos; + } + return AVCHROMA_LOC_UNSPECIFIED; +} + +int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, + enum AVSampleFormat sample_fmt, const uint8_t *buf, + int buf_size, int align) +{ + int ch, planar, needed_size, ret = 0; + + needed_size = av_samples_get_buffer_size(NULL, nb_channels, + frame->nb_samples, sample_fmt, + align); + if (buf_size < needed_size) + return AVERROR(EINVAL); + + planar = av_sample_fmt_is_planar(sample_fmt); + if (planar && nb_channels > AV_NUM_DATA_POINTERS) { + if (!(frame->extended_data = av_mallocz_array(nb_channels, + sizeof(*frame->extended_data)))) + return AVERROR(ENOMEM); + } else { + frame->extended_data = frame->data; + } + + if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0], + (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples, + sample_fmt, align)) < 0) { + if (frame->extended_data != frame->data) + av_freep(&frame->extended_data); + return ret; + } + if (frame->extended_data != frame->data) { + for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++) + frame->data[ch] = frame->extended_data[ch]; + } + + return ret; +} + +static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame) +{ + FramePool *pool = avctx->internal->pool; + int i, ret; + + switch (avctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: { + uint8_t *data[4]; + int linesize[4]; + int size[4] = { 0 }; + int w = frame->width; + int h = frame->height; + int tmpsize, unaligned; + + if (pool->format == frame->format && + pool->width == frame->width && pool->height == frame->height) + return 0; + + avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align); + + do { + // NOTE: do not align linesizes individually, this breaks e.g. assumptions + // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2 + ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w); + if (ret < 0) + return ret; + // increase alignment of w for next try (rhs gives the lowest bit set in w) + w += w & ~(w - 1); + + unaligned = 0; + for (i = 0; i < 4; i++) + unaligned |= linesize[i] % pool->stride_align[i]; + } while (unaligned); + + tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h, + NULL, linesize); + if (tmpsize < 0) + return -1; + + for (i = 0; i < 3 && data[i + 1]; i++) + size[i] = data[i + 1] - data[i]; + size[i] = tmpsize - (data[i] - data[0]); + + for (i = 0; i < 4; i++) { + av_buffer_pool_uninit(&pool->pools[i]); + pool->linesize[i] = linesize[i]; + if (size[i]) { + pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1, + CONFIG_MEMORY_POISONING ? + NULL : + av_buffer_allocz); + if (!pool->pools[i]) { + ret = AVERROR(ENOMEM); + goto fail; + } + } + } + pool->format = frame->format; + pool->width = frame->width; + pool->height = frame->height; + + break; + } + case AVMEDIA_TYPE_AUDIO: { + int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout); + int planar = av_sample_fmt_is_planar(frame->format); + int planes = planar ? ch : 1; + + if (pool->format == frame->format && pool->planes == planes && + pool->channels == ch && frame->nb_samples == pool->samples) + return 0; + + av_buffer_pool_uninit(&pool->pools[0]); + ret = av_samples_get_buffer_size(&pool->linesize[0], ch, + frame->nb_samples, frame->format, 0); + if (ret < 0) + goto fail; + + pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL); + if (!pool->pools[0]) { + ret = AVERROR(ENOMEM); + goto fail; + } + + pool->format = frame->format; + pool->planes = planes; + pool->channels = ch; + pool->samples = frame->nb_samples; + break; + } + default: av_assert0(0); + } + return 0; +fail: + for (i = 0; i < 4; i++) + av_buffer_pool_uninit(&pool->pools[i]); + pool->format = -1; + pool->planes = pool->channels = pool->samples = 0; + pool->width = pool->height = 0; + return ret; +} + +static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame) +{ + FramePool *pool = avctx->internal->pool; + int planes = pool->planes; + int i; + + frame->linesize[0] = pool->linesize[0]; + + if (planes > AV_NUM_DATA_POINTERS) { + frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data)); + frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS; + frame->extended_buf = av_mallocz_array(frame->nb_extended_buf, + sizeof(*frame->extended_buf)); + if (!frame->extended_data || !frame->extended_buf) { + av_freep(&frame->extended_data); + av_freep(&frame->extended_buf); + return AVERROR(ENOMEM); + } + } else { + frame->extended_data = frame->data; + av_assert0(frame->nb_extended_buf == 0); + } + + for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) { + frame->buf[i] = av_buffer_pool_get(pool->pools[0]); + if (!frame->buf[i]) + goto fail; + frame->extended_data[i] = frame->data[i] = frame->buf[i]->data; + } + for (i = 0; i < frame->nb_extended_buf; i++) { + frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]); + if (!frame->extended_buf[i]) + goto fail; + frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data; + } + + if (avctx->debug & FF_DEBUG_BUFFERS) + av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame); + + return 0; +fail: + av_frame_unref(frame); + return AVERROR(ENOMEM); +} + +static int video_get_buffer(AVCodecContext *s, AVFrame *pic) +{ + FramePool *pool = s->internal->pool; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format); + int i; + + if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) { + av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n"); + return -1; + } + + if (!desc) { + av_log(s, AV_LOG_ERROR, + "Unable to get pixel format descriptor for format %s\n", + av_get_pix_fmt_name(pic->format)); + return AVERROR(EINVAL); + } + + memset(pic->data, 0, sizeof(pic->data)); + pic->extended_data = pic->data; + + for (i = 0; i < 4 && pool->pools[i]; i++) { + pic->linesize[i] = pool->linesize[i]; + + pic->buf[i] = av_buffer_pool_get(pool->pools[i]); + if (!pic->buf[i]) + goto fail; + + pic->data[i] = pic->buf[i]->data; + } + for (; i < AV_NUM_DATA_POINTERS; i++) { + pic->data[i] = NULL; + pic->linesize[i] = 0; + } + if (desc->flags & AV_PIX_FMT_FLAG_PAL || + desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) + avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format); + + if (s->debug & FF_DEBUG_BUFFERS) + av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic); + + return 0; +fail: + av_frame_unref(pic); + return AVERROR(ENOMEM); +} + +void ff_color_frame(AVFrame *frame, const int c[4]) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); + int p, y, x; + + av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR); + + for (p = 0; p<desc->nb_components; p++) { + uint8_t *dst = frame->data[p]; + int is_chroma = p == 1 || p == 2; + int bytes = is_chroma ? AV_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width; + int height = is_chroma ? AV_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height; + for (y = 0; y < height; y++) { + if (desc->comp[0].depth >= 9) { + for (x = 0; x<bytes; x++) + ((uint16_t*)dst)[x] = c[p]; + }else + memset(dst, c[p], bytes); + dst += frame->linesize[p]; + } + } +} + +int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags) +{ + int ret; + + if ((ret = update_frame_pool(avctx, frame)) < 0) + return ret; + + switch (avctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: + return video_get_buffer(avctx, frame); + case AVMEDIA_TYPE_AUDIO: + return audio_get_buffer(avctx, frame); + default: + return -1; + } +} + +static int add_metadata_from_side_data(AVPacket *avpkt, AVFrame *frame) +{ + int size; + const uint8_t *side_metadata; + + AVDictionary **frame_md = avpriv_frame_get_metadatap(frame); + + side_metadata = av_packet_get_side_data(avpkt, + AV_PKT_DATA_STRINGS_METADATA, &size); + return av_packet_unpack_dictionary(side_metadata, size, frame_md); +} + +int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame) +{ + AVPacket *pkt = avctx->internal->pkt; + int i; + static const struct { + enum AVPacketSideDataType packet; + enum AVFrameSideDataType frame; + } sd[] = { + { AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN }, + { AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX }, + { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D }, + { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE }, + { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA }, + }; + + if (pkt) { + frame->pkt_pts = pkt->pts; + av_frame_set_pkt_pos (frame, pkt->pos); + av_frame_set_pkt_duration(frame, pkt->duration); + av_frame_set_pkt_size (frame, pkt->size); + + for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) { + int size; + uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size); + if (packet_sd) { + AVFrameSideData *frame_sd = av_frame_new_side_data(frame, + sd[i].frame, + size); + if (!frame_sd) + return AVERROR(ENOMEM); + + memcpy(frame_sd->data, packet_sd, size); + } + } + add_metadata_from_side_data(pkt, frame); + } else { + frame->pkt_pts = AV_NOPTS_VALUE; + av_frame_set_pkt_pos (frame, -1); + av_frame_set_pkt_duration(frame, 0); + av_frame_set_pkt_size (frame, -1); + } + frame->reordered_opaque = avctx->reordered_opaque; + + if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED) + frame->color_primaries = avctx->color_primaries; + if (frame->color_trc == AVCOL_TRC_UNSPECIFIED) + frame->color_trc = avctx->color_trc; + if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED) + av_frame_set_colorspace(frame, avctx->colorspace); + if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED) + av_frame_set_color_range(frame, avctx->color_range); + if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED) + frame->chroma_location = avctx->chroma_sample_location; + + switch (avctx->codec->type) { + case AVMEDIA_TYPE_VIDEO: + frame->format = avctx->pix_fmt; + if (!frame->sample_aspect_ratio.num) + frame->sample_aspect_ratio = avctx->sample_aspect_ratio; + + if (frame->width && frame->height && + av_image_check_sar(frame->width, frame->height, + frame->sample_aspect_ratio) < 0) { + av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", + frame->sample_aspect_ratio.num, + frame->sample_aspect_ratio.den); + frame->sample_aspect_ratio = (AVRational){ 0, 1 }; + } + + break; + case AVMEDIA_TYPE_AUDIO: + if (!frame->sample_rate) + frame->sample_rate = avctx->sample_rate; + if (frame->format < 0) + frame->format = avctx->sample_fmt; + if (!frame->channel_layout) { + if (avctx->channel_layout) { + if (av_get_channel_layout_nb_channels(avctx->channel_layout) != + avctx->channels) { + av_log(avctx, AV_LOG_ERROR, "Inconsistent channel " + "configuration.\n"); + return AVERROR(EINVAL); + } + + frame->channel_layout = avctx->channel_layout; + } else { + if (avctx->channels > FF_SANE_NB_CHANNELS) { + av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n", + avctx->channels); + return AVERROR(ENOSYS); + } + } + } + av_frame_set_channels(frame, avctx->channels); + break; + } + return 0; +} + +int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame) +{ + return ff_init_buffer_info(avctx, frame); +} + +static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame) +{ + if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { + int i; + int num_planes = av_pix_fmt_count_planes(frame->format); + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); + int flags = desc ? desc->flags : 0; + if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL)) + num_planes = 2; + for (i = 0; i < num_planes; i++) { + av_assert0(frame->data[i]); + } + // For now do not enforce anything for palette of pseudopal formats + if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PSEUDOPAL)) + num_planes = 2; + // For formats without data like hwaccel allow unused pointers to be non-NULL. + for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) { + if (frame->data[i]) + av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n"); + frame->data[i] = NULL; + } + } +} + +static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags) +{ + const AVHWAccel *hwaccel = avctx->hwaccel; + int override_dimensions = 1; + int ret; + + if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { + if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) { + av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n"); + return AVERROR(EINVAL); + } + + if (frame->width <= 0 || frame->height <= 0) { + frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres)); + frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres)); + override_dimensions = 0; + } + + if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) { + av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n"); + return AVERROR(EINVAL); + } + } + ret = ff_decode_frame_props(avctx, frame); + if (ret < 0) + return ret; + + if (hwaccel) { + if (hwaccel->alloc_frame) { + ret = hwaccel->alloc_frame(avctx, frame); + goto end; + } + } else + avctx->sw_pix_fmt = avctx->pix_fmt; + + ret = avctx->get_buffer2(avctx, frame, flags); + if (ret >= 0) + validate_avframe_allocation(avctx, frame); + +end: + if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) { + frame->width = avctx->width; + frame->height = avctx->height; + } + + return ret; +} + +int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) +{ + int ret = get_buffer_internal(avctx, frame, flags); + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + frame->width = frame->height = 0; + } + return ret; +} + +static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame) +{ + AVFrame *tmp; + int ret; + + av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO); + + if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) { + av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n", + frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt)); + av_frame_unref(frame); + } + + ff_init_buffer_info(avctx, frame); + + if (!frame->data[0]) + return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); + + if (av_frame_is_writable(frame)) + return ff_decode_frame_props(avctx, frame); + + tmp = av_frame_alloc(); + if (!tmp) + return AVERROR(ENOMEM); + + av_frame_move_ref(tmp, frame); + + ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); + if (ret < 0) { + av_frame_free(&tmp); + return ret; + } + + av_frame_copy(frame, tmp); + av_frame_free(&tmp); + + return 0; +} + +int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame) +{ + int ret = reget_buffer_internal(avctx, frame); + if (ret < 0) + av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); + return ret; +} + +int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) +{ + int i; + + for (i = 0; i < count; i++) { + int r = func(c, (char *)arg + i * size); + if (ret) + ret[i] = r; + } + return 0; +} + +int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) +{ + int i; + + for (i = 0; i < count; i++) { + int r = func(c, arg, i, 0); + if (ret) + ret[i] = r; + } + return 0; +} + +enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, + unsigned int fourcc) +{ + while (tags->pix_fmt >= 0) { + if (tags->fourcc == fourcc) + return tags->pix_fmt; + tags++; + } + return AV_PIX_FMT_NONE; +} + +static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); + return desc->flags & AV_PIX_FMT_FLAG_HWACCEL; +} + +enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt) +{ + while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt)) + ++fmt; + return fmt[0]; +} + +static AVHWAccel *find_hwaccel(enum AVCodecID codec_id, + enum AVPixelFormat pix_fmt) +{ + AVHWAccel *hwaccel = NULL; + + while ((hwaccel = av_hwaccel_next(hwaccel))) + if (hwaccel->id == codec_id + && hwaccel->pix_fmt == pix_fmt) + return hwaccel; + return NULL; +} + +static int setup_hwaccel(AVCodecContext *avctx, + const enum AVPixelFormat fmt, + const char *name) +{ + AVHWAccel *hwa = find_hwaccel(avctx->codec_id, fmt); + int ret = 0; + + if (avctx->active_thread_type & FF_THREAD_FRAME) { + av_log(avctx, AV_LOG_WARNING, + "Hardware accelerated decoding with frame threading is known to be unstable and its use is discouraged.\n"); + } + + if (!hwa) { + av_log(avctx, AV_LOG_ERROR, + "Could not find an AVHWAccel for the pixel format: %s", + name); + return AVERROR(ENOENT); + } + + if (hwa->capabilities & HWACCEL_CODEC_CAP_EXPERIMENTAL && + avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { + av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n", + hwa->name); + return AVERROR_PATCHWELCOME; + } + + if (hwa->priv_data_size) { + avctx->internal->hwaccel_priv_data = av_mallocz(hwa->priv_data_size); + if (!avctx->internal->hwaccel_priv_data) + return AVERROR(ENOMEM); + } + + if (hwa->init) { + ret = hwa->init(avctx); + if (ret < 0) { + av_freep(&avctx->internal->hwaccel_priv_data); + return ret; + } + } + + avctx->hwaccel = hwa; + + return 0; +} + +int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) +{ + const AVPixFmtDescriptor *desc; + enum AVPixelFormat *choices; + enum AVPixelFormat ret; + unsigned n = 0; + + while (fmt[n] != AV_PIX_FMT_NONE) + ++n; + + av_assert0(n >= 1); + avctx->sw_pix_fmt = fmt[n - 1]; + av_assert2(!is_hwaccel_pix_fmt(avctx->sw_pix_fmt)); + + choices = av_malloc_array(n + 1, sizeof(*choices)); + if (!choices) + return AV_PIX_FMT_NONE; + + memcpy(choices, fmt, (n + 1) * sizeof(*choices)); + + for (;;) { + if (avctx->hwaccel && avctx->hwaccel->uninit) + avctx->hwaccel->uninit(avctx); + av_freep(&avctx->internal->hwaccel_priv_data); + avctx->hwaccel = NULL; + + ret = avctx->get_format(avctx, choices); + + desc = av_pix_fmt_desc_get(ret); + if (!desc) { + ret = AV_PIX_FMT_NONE; + break; + } + + if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) + break; +#if FF_API_CAP_VDPAU + if (avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU) + break; +#endif + + if (!setup_hwaccel(avctx, ret, desc->name)) + break; + + /* Remove failed hwaccel from choices */ + for (n = 0; choices[n] != ret; n++) + av_assert0(choices[n] != AV_PIX_FMT_NONE); + + do + choices[n] = choices[n + 1]; + while (choices[n++] != AV_PIX_FMT_NONE); + } + + av_freep(&choices); + return ret; +} + +MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase) +MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor) +MAKE_ACCESSORS(AVCodecContext, codec, int, lowres) +MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll) +MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix) + +unsigned av_codec_get_codec_properties(const AVCodecContext *codec) +{ + return codec->properties; +} + +int av_codec_get_max_lowres(const AVCodec *codec) +{ + return codec->max_lowres; +} + +int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){ + return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM); +} + +static void get_subtitle_defaults(AVSubtitle *sub) +{ + memset(sub, 0, sizeof(*sub)); + sub->pts = AV_NOPTS_VALUE; +} + +static int64_t get_bit_rate(AVCodecContext *ctx) +{ + int64_t bit_rate; + int bits_per_sample; + + switch (ctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: + case AVMEDIA_TYPE_DATA: + case AVMEDIA_TYPE_SUBTITLE: + case AVMEDIA_TYPE_ATTACHMENT: + bit_rate = ctx->bit_rate; + break; + case AVMEDIA_TYPE_AUDIO: + bits_per_sample = av_get_bits_per_sample(ctx->codec_id); + bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate; + break; + default: + bit_rate = 0; + break; + } + return bit_rate; +} + +int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) +{ + int ret = 0; + + ff_unlock_avcodec(codec); + + ret = avcodec_open2(avctx, codec, options); + + ff_lock_avcodec(avctx, codec); + return ret; +} + +int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) +{ + int ret = 0; + AVDictionary *tmp = NULL; + const AVPixFmtDescriptor *pixdesc; + + if (avcodec_is_open(avctx)) + return 0; + + if ((!codec && !avctx->codec)) { + av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n"); + return AVERROR(EINVAL); + } + if ((codec && avctx->codec && codec != avctx->codec)) { + av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, " + "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name); + return AVERROR(EINVAL); + } + if (!codec) + codec = avctx->codec; + + if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE) + return AVERROR(EINVAL); + + if (options) + av_dict_copy(&tmp, *options, 0); + + ret = ff_lock_avcodec(avctx, codec); + if (ret < 0) + return ret; + + avctx->internal = av_mallocz(sizeof(AVCodecInternal)); + if (!avctx->internal) { + ret = AVERROR(ENOMEM); + goto end; + } + + avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool)); + if (!avctx->internal->pool) { + ret = AVERROR(ENOMEM); + goto free_and_end; + } + + avctx->internal->to_free = av_frame_alloc(); + if (!avctx->internal->to_free) { + ret = AVERROR(ENOMEM); + goto free_and_end; + } + + avctx->internal->buffer_frame = av_frame_alloc(); + if (!avctx->internal->buffer_frame) { + ret = AVERROR(ENOMEM); + goto free_and_end; + } + + avctx->internal->buffer_pkt = av_packet_alloc(); + if (!avctx->internal->buffer_pkt) { + ret = AVERROR(ENOMEM); + goto free_and_end; + } + + if (codec->priv_data_size > 0) { + if (!avctx->priv_data) { + avctx->priv_data = av_mallocz(codec->priv_data_size); + if (!avctx->priv_data) { + ret = AVERROR(ENOMEM); + goto end; + } + if (codec->priv_class) { + *(const AVClass **)avctx->priv_data = codec->priv_class; + av_opt_set_defaults(avctx->priv_data); + } + } + if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0) + goto free_and_end; + } else { + avctx->priv_data = NULL; + } + if ((ret = av_opt_set_dict(avctx, &tmp)) < 0) + goto free_and_end; + + if (avctx->codec_whitelist && av_match_list(codec->name, avctx->codec_whitelist, ',') <= 0) { + av_log(avctx, AV_LOG_ERROR, "Codec (%s) not on whitelist \'%s\'\n", codec->name, avctx->codec_whitelist); + ret = AVERROR(EINVAL); + goto free_and_end; + } + + // only call ff_set_dimensions() for non H.264/VP6F/DXV codecs so as not to overwrite previously setup dimensions + if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && + (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F || avctx->codec_id == AV_CODEC_ID_DXV))) { + if (avctx->coded_width && avctx->coded_height) + ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); + else if (avctx->width && avctx->height) + ret = ff_set_dimensions(avctx, avctx->width, avctx->height); + if (ret < 0) + goto free_and_end; + } + + if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height) + && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0 + || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) { + av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n"); + ff_set_dimensions(avctx, 0, 0); + } + + if (avctx->width > 0 && avctx->height > 0) { + if (av_image_check_sar(avctx->width, avctx->height, + avctx->sample_aspect_ratio) < 0) { + av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", + avctx->sample_aspect_ratio.num, + avctx->sample_aspect_ratio.den); + avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; + } + } + + /* if the decoder init function was already called previously, + * free the already allocated subtitle_header before overwriting it */ + if (av_codec_is_decoder(codec)) + av_freep(&avctx->subtitle_header); + + if (avctx->channels > FF_SANE_NB_CHANNELS) { + ret = AVERROR(EINVAL); + goto free_and_end; + } + + avctx->codec = codec; + if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && + avctx->codec_id == AV_CODEC_ID_NONE) { + avctx->codec_type = codec->type; + avctx->codec_id = codec->id; + } + if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type + && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) { + av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n"); + ret = AVERROR(EINVAL); + goto free_and_end; + } + avctx->frame_number = 0; + avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id); + + if ((avctx->codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) && + avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { + const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder"; + AVCodec *codec2; + av_log(avctx, AV_LOG_ERROR, + "The %s '%s' is experimental but experimental codecs are not enabled, " + "add '-strict %d' if you want to use it.\n", + codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL); + codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id); + if (!(codec2->capabilities & AV_CODEC_CAP_EXPERIMENTAL)) + av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n", + codec_string, codec2->name); + ret = AVERROR_EXPERIMENTAL; + goto free_and_end; + } + + if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && + (!avctx->time_base.num || !avctx->time_base.den)) { + avctx->time_base.num = 1; + avctx->time_base.den = avctx->sample_rate; + } + + if (!HAVE_THREADS) + av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n"); + + if (CONFIG_FRAME_THREAD_ENCODER && av_codec_is_encoder(avctx->codec)) { + ff_unlock_avcodec(codec); //we will instantiate a few encoders thus kick the counter to prevent false detection of a problem + ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL); + ff_lock_avcodec(avctx, codec); + if (ret < 0) + goto free_and_end; + } + + if (HAVE_THREADS + && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) { + ret = ff_thread_init(avctx); + if (ret < 0) { + goto free_and_end; + } + } + if (!HAVE_THREADS && !(codec->capabilities & AV_CODEC_CAP_AUTO_THREADS)) + avctx->thread_count = 1; + + if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) { + av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n", + avctx->codec->max_lowres); + ret = AVERROR(EINVAL); + goto free_and_end; + } + +#if FF_API_VISMV + if (avctx->debug_mv) + av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, " + "see the codecview filter instead.\n"); +#endif + + if (av_codec_is_encoder(avctx->codec)) { + int i; +#if FF_API_CODED_FRAME +FF_DISABLE_DEPRECATION_WARNINGS + avctx->coded_frame = av_frame_alloc(); + if (!avctx->coded_frame) { + ret = AVERROR(ENOMEM); + goto free_and_end; + } +FF_ENABLE_DEPRECATION_WARNINGS +#endif + + if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) { + av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n"); + ret = AVERROR(EINVAL); + goto free_and_end; + } + + if (avctx->codec->sample_fmts) { + for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) { + if (avctx->sample_fmt == avctx->codec->sample_fmts[i]) + break; + if (avctx->channels == 1 && + av_get_planar_sample_fmt(avctx->sample_fmt) == + av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) { + avctx->sample_fmt = avctx->codec->sample_fmts[i]; + break; + } + } + if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) { + char buf[128]; + snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt); + av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n", + (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf)); + ret = AVERROR(EINVAL); + goto free_and_end; + } + } + if (avctx->codec->pix_fmts) { + for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++) + if (avctx->pix_fmt == avctx->codec->pix_fmts[i]) + break; + if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE + && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG) + && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) { + char buf[128]; + snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt); + av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n", + (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf)); + ret = AVERROR(EINVAL); + goto free_and_end; + } + if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ420P || + avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ411P || + avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ422P || + avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ440P || + avctx->codec->pix_fmts[i] == AV_PIX_FMT_YUVJ444P) + avctx->color_range = AVCOL_RANGE_JPEG; + } + if (avctx->codec->supported_samplerates) { + for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++) + if (avctx->sample_rate == avctx->codec->supported_samplerates[i]) + break; + if (avctx->codec->supported_samplerates[i] == 0) { + av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n", + avctx->sample_rate); + ret = AVERROR(EINVAL); + goto free_and_end; + } + } + if (avctx->sample_rate < 0) { + av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n", + avctx->sample_rate); + ret = AVERROR(EINVAL); + goto free_and_end; + } + if (avctx->codec->channel_layouts) { + if (!avctx->channel_layout) { + av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n"); + } else { + for (i = 0; avctx->codec->channel_layouts[i] != 0; i++) + if (avctx->channel_layout == avctx->codec->channel_layouts[i]) + break; + if (avctx->codec->channel_layouts[i] == 0) { + char buf[512]; + av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); + av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf); + ret = AVERROR(EINVAL); + goto free_and_end; + } + } + } + if (avctx->channel_layout && avctx->channels) { + int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); + if (channels != avctx->channels) { + char buf[512]; + av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); + av_log(avctx, AV_LOG_ERROR, + "Channel layout '%s' with %d channels does not match number of specified channels %d\n", + buf, channels, avctx->channels); + ret = AVERROR(EINVAL); + goto free_and_end; + } + } else if (avctx->channel_layout) { + avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout); + } + if (avctx->channels < 0) { + av_log(avctx, AV_LOG_ERROR, "Specified number of channels %d is not supported\n", + avctx->channels); + ret = AVERROR(EINVAL); + goto free_and_end; + } + if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) { + pixdesc = av_pix_fmt_desc_get(avctx->pix_fmt); + if ( avctx->bits_per_raw_sample < 0 + || (avctx->bits_per_raw_sample > 8 && pixdesc->comp[0].depth <= 8)) { + av_log(avctx, AV_LOG_WARNING, "Specified bit depth %d not possible with the specified pixel formats depth %d\n", + avctx->bits_per_raw_sample, pixdesc->comp[0].depth); + avctx->bits_per_raw_sample = pixdesc->comp[0].depth; + } + if (avctx->width <= 0 || avctx->height <= 0) { + av_log(avctx, AV_LOG_ERROR, "dimensions not set\n"); + ret = AVERROR(EINVAL); + goto free_and_end; + } + } + if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) + && avctx->bit_rate>0 && avctx->bit_rate<1000) { + av_log(avctx, AV_LOG_WARNING, "Bitrate %"PRId64" is extremely low, maybe you mean %"PRId64"k\n", (int64_t)avctx->bit_rate, (int64_t)avctx->bit_rate); + } + + if (!avctx->rc_initial_buffer_occupancy) + avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4; + + if (avctx->ticks_per_frame && avctx->time_base.num && + avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) { + av_log(avctx, AV_LOG_ERROR, + "ticks_per_frame %d too large for the timebase %d/%d.", + avctx->ticks_per_frame, + avctx->time_base.num, + avctx->time_base.den); + goto free_and_end; + } + + if (avctx->hw_frames_ctx) { + AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; + if (frames_ctx->format != avctx->pix_fmt) { + av_log(avctx, AV_LOG_ERROR, + "Mismatching AVCodecContext.pix_fmt and AVHWFramesContext.format\n"); + ret = AVERROR(EINVAL); + goto free_and_end; + } + } + } + + avctx->pts_correction_num_faulty_pts = + avctx->pts_correction_num_faulty_dts = 0; + avctx->pts_correction_last_pts = + avctx->pts_correction_last_dts = INT64_MIN; + + if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY + && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO) + av_log(avctx, AV_LOG_WARNING, + "gray decoding requested but not enabled at configuration time\n"); + + if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) + || avctx->internal->frame_thread_encoder)) { + ret = avctx->codec->init(avctx); + if (ret < 0) { + goto free_and_end; + } + } + + ret=0; + +#if FF_API_AUDIOENC_DELAY + if (av_codec_is_encoder(avctx->codec)) + avctx->delay = avctx->initial_padding; +#endif + + if (av_codec_is_decoder(avctx->codec)) { + if (!avctx->bit_rate) + avctx->bit_rate = get_bit_rate(avctx); + /* validate channel layout from the decoder */ + if (avctx->channel_layout) { + int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); + if (!avctx->channels) + avctx->channels = channels; + else if (channels != avctx->channels) { + char buf[512]; + av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); + av_log(avctx, AV_LOG_WARNING, + "Channel layout '%s' with %d channels does not match specified number of channels %d: " + "ignoring specified channel layout\n", + buf, channels, avctx->channels); + avctx->channel_layout = 0; + } + } + if (avctx->channels && avctx->channels < 0 || + avctx->channels > FF_SANE_NB_CHANNELS) { + ret = AVERROR(EINVAL); + goto free_and_end; + } + if (avctx->sub_charenc) { + if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) { + av_log(avctx, AV_LOG_ERROR, "Character encoding is only " + "supported with subtitles codecs\n"); + ret = AVERROR(EINVAL); + goto free_and_end; + } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) { + av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, " + "subtitles character encoding will be ignored\n", + avctx->codec_descriptor->name); + avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING; + } else { + /* input character encoding is set for a text based subtitle + * codec at this point */ + if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC) + avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER; + + if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) { +#if CONFIG_ICONV + iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc); + if (cd == (iconv_t)-1) { + ret = AVERROR(errno); + av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context " + "with input character encoding \"%s\"\n", avctx->sub_charenc); + goto free_and_end; + } + iconv_close(cd); +#else + av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles " + "conversion needs a libavcodec built with iconv support " + "for this codec\n"); + ret = AVERROR(ENOSYS); + goto free_and_end; +#endif + } + } + } + +#if FF_API_AVCTX_TIMEBASE + if (avctx->framerate.num > 0 && avctx->framerate.den > 0) + avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1})); +#endif + } + if (codec->priv_data_size > 0 && avctx->priv_data && codec->priv_class) { + av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class); + } + +end: + ff_unlock_avcodec(codec); + if (options) { + av_dict_free(options); + *options = tmp; + } + + return ret; +free_and_end: + if (avctx->codec && + (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)) + avctx->codec->close(avctx); + + if (codec->priv_class && codec->priv_data_size) + av_opt_free(avctx->priv_data); + av_opt_free(avctx); + +#if FF_API_CODED_FRAME +FF_DISABLE_DEPRECATION_WARNINGS + av_frame_free(&avctx->coded_frame); +FF_ENABLE_DEPRECATION_WARNINGS +#endif + + av_dict_free(&tmp); + av_freep(&avctx->priv_data); + if (avctx->internal) { + av_packet_free(&avctx->internal->buffer_pkt); + av_frame_free(&avctx->internal->buffer_frame); + av_frame_free(&avctx->internal->to_free); + av_freep(&avctx->internal->pool); + } + av_freep(&avctx->internal); + avctx->codec = NULL; + goto end; +} + +int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size) +{ + if (avpkt->size < 0) { + av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size); + return AVERROR(EINVAL); + } + if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) { + av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n", + size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE); + return AVERROR(EINVAL); + } + + if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned + av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer); + if (!avpkt->data || avpkt->size < size) { + av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size); + avpkt->data = avctx->internal->byte_buffer; + avpkt->size = avctx->internal->byte_buffer_size; + } + } + + if (avpkt->data) { + AVBufferRef *buf = avpkt->buf; + + if (avpkt->size < size) { + av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size); + return AVERROR(EINVAL); + } + + av_init_packet(avpkt); + avpkt->buf = buf; + avpkt->size = size; + return 0; + } else { + int ret = av_new_packet(avpkt, size); + if (ret < 0) + av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size); + return ret; + } +} + +int ff_alloc_packet(AVPacket *avpkt, int size) +{ + return ff_alloc_packet2(NULL, avpkt, size, 0); +} + +/** + * Pad last frame with silence. + */ +static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) +{ + AVFrame *frame = NULL; + int ret; + + if (!(frame = av_frame_alloc())) + return AVERROR(ENOMEM); + + frame->format = src->format; + frame->channel_layout = src->channel_layout; + av_frame_set_channels(frame, av_frame_get_channels(src)); + frame->nb_samples = s->frame_size; + ret = av_frame_get_buffer(frame, 32); + if (ret < 0) + goto fail; + + ret = av_frame_copy_props(frame, src); + if (ret < 0) + goto fail; + + if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0, + src->nb_samples, s->channels, s->sample_fmt)) < 0) + goto fail; + if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples, + frame->nb_samples - src->nb_samples, + s->channels, s->sample_fmt)) < 0) + goto fail; + + *dst = frame; + + return 0; + +fail: + av_frame_free(&frame); + return ret; +} + +int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, + AVPacket *avpkt, + const AVFrame *frame, + int *got_packet_ptr) +{ + AVFrame *extended_frame = NULL; + AVFrame *padded_frame = NULL; + int ret; + AVPacket user_pkt = *avpkt; + int needs_realloc = !user_pkt.data; + + *got_packet_ptr = 0; + + if (!avctx->codec->encode2) { + av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n"); + return AVERROR(ENOSYS); + } + + if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) { + av_packet_unref(avpkt); + av_init_packet(avpkt); + return 0; + } + + /* ensure that extended_data is properly set */ + if (frame && !frame->extended_data) { + if (av_sample_fmt_is_planar(avctx->sample_fmt) && + avctx->channels > AV_NUM_DATA_POINTERS) { + av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, " + "with more than %d channels, but extended_data is not set.\n", + AV_NUM_DATA_POINTERS); + return AVERROR(EINVAL); + } + av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n"); + + extended_frame = av_frame_alloc(); + if (!extended_frame) + return AVERROR(ENOMEM); + + memcpy(extended_frame, frame, sizeof(AVFrame)); + extended_frame->extended_data = extended_frame->data; + frame = extended_frame; + } + + /* extract audio service type metadata */ + if (frame) { + AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_AUDIO_SERVICE_TYPE); + if (sd && sd->size >= sizeof(enum AVAudioServiceType)) + avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data; + } + + /* check for valid frame size */ + if (frame) { + if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) { + if (frame->nb_samples > avctx->frame_size) { + av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n"); + ret = AVERROR(EINVAL); + goto end; + } + } else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) { + if (frame->nb_samples < avctx->frame_size && + !avctx->internal->last_audio_frame) { + ret = pad_last_frame(avctx, &padded_frame, frame); + if (ret < 0) + goto end; + + frame = padded_frame; + avctx->internal->last_audio_frame = 1; + } + + if (frame->nb_samples != avctx->frame_size) { + av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size); + ret = AVERROR(EINVAL); + goto end; + } + } + } + + av_assert0(avctx->codec->encode2); + + ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); + if (!ret) { + if (*got_packet_ptr) { + if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) { + if (avpkt->pts == AV_NOPTS_VALUE) + avpkt->pts = frame->pts; + if (!avpkt->duration) + avpkt->duration = ff_samples_to_time_base(avctx, + frame->nb_samples); + } + avpkt->dts = avpkt->pts; + } else { + avpkt->size = 0; + } + } + if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { + needs_realloc = 0; + if (user_pkt.data) { + if (user_pkt.size >= avpkt->size) { + memcpy(user_pkt.data, avpkt->data, avpkt->size); + } else { + av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); + avpkt->size = user_pkt.size; + ret = -1; + } + avpkt->buf = user_pkt.buf; + avpkt->data = user_pkt.data; + } else { + if (av_dup_packet(avpkt) < 0) { + ret = AVERROR(ENOMEM); + } + } + } + + if (!ret) { + if (needs_realloc && avpkt->data) { + ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); + if (ret >= 0) + avpkt->data = avpkt->buf->data; + } + + avctx->frame_number++; + } + + if (ret < 0 || !*got_packet_ptr) { + av_packet_unref(avpkt); + av_init_packet(avpkt); + goto end; + } + + /* NOTE: if we add any audio encoders which output non-keyframe packets, + * this needs to be moved to the encoders, but for now we can do it + * here to simplify things */ + avpkt->flags |= AV_PKT_FLAG_KEY; + +end: + av_frame_free(&padded_frame); + av_free(extended_frame); + +#if FF_API_AUDIOENC_DELAY + avctx->delay = avctx->initial_padding; +#endif + + return ret; +} + +int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, + AVPacket *avpkt, + const AVFrame *frame, + int *got_packet_ptr) +{ + int ret; + AVPacket user_pkt = *avpkt; + int needs_realloc = !user_pkt.data; + + *got_packet_ptr = 0; + + if (!avctx->codec->encode2) { + av_log(avctx, AV_LOG_ERROR, "This encoder requires using the avcodec_send_frame() API.\n"); + return AVERROR(ENOSYS); + } + + if(CONFIG_FRAME_THREAD_ENCODER && + avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME)) + return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr); + + if ((avctx->flags&AV_CODEC_FLAG_PASS1) && avctx->stats_out) + avctx->stats_out[0] = '\0'; + + if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY) && !frame) { + av_packet_unref(avpkt); + av_init_packet(avpkt); + avpkt->size = 0; + return 0; + } + + if (av_image_check_size(avctx->width, avctx->height, 0, avctx)) + return AVERROR(EINVAL); + + if (frame && frame->format == AV_PIX_FMT_NONE) + av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n"); + if (frame && (frame->width == 0 || frame->height == 0)) + av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n"); + + av_assert0(avctx->codec->encode2); + + ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); + av_assert0(ret <= 0); + + if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { + needs_realloc = 0; + if (user_pkt.data) { + if (user_pkt.size >= avpkt->size) { + memcpy(user_pkt.data, avpkt->data, avpkt->size); + } else { + av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); + avpkt->size = user_pkt.size; + ret = -1; + } + avpkt->buf = user_pkt.buf; + avpkt->data = user_pkt.data; + } else { + if (av_dup_packet(avpkt) < 0) { + ret = AVERROR(ENOMEM); + } + } + } + + if (!ret) { + if (!*got_packet_ptr) + avpkt->size = 0; + else if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) + avpkt->pts = avpkt->dts = frame->pts; + + if (needs_realloc && avpkt->data) { + ret = av_buffer_realloc(&avpkt->buf, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE); + if (ret >= 0) + avpkt->data = avpkt->buf->data; + } + + avctx->frame_number++; + } + + if (ret < 0 || !*got_packet_ptr) + av_packet_unref(avpkt); + + emms_c(); + return ret; +} + +int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, + const AVSubtitle *sub) +{ + int ret; + if (sub->start_display_time) { + av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n"); + return -1; + } + + ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub); + avctx->frame_number++; + return ret; +} + +/** + * Attempt to guess proper monotonic timestamps for decoded video frames + * which might have incorrect times. Input timestamps may wrap around, in + * which case the output will as well. + * + * @param pts the pts field of the decoded AVPacket, as passed through + * AVFrame.pkt_pts + * @param dts the dts field of the decoded AVPacket + * @return one of the input values, may be AV_NOPTS_VALUE + */ +static int64_t guess_correct_pts(AVCodecContext *ctx, + int64_t reordered_pts, int64_t dts) +{ + int64_t pts = AV_NOPTS_VALUE; + + if (dts != AV_NOPTS_VALUE) { + ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts; + ctx->pts_correction_last_dts = dts; + } else if (reordered_pts != AV_NOPTS_VALUE) + ctx->pts_correction_last_dts = reordered_pts; + + if (reordered_pts != AV_NOPTS_VALUE) { + ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts; + ctx->pts_correction_last_pts = reordered_pts; + } else if(dts != AV_NOPTS_VALUE) + ctx->pts_correction_last_pts = dts; + + if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE) + && reordered_pts != AV_NOPTS_VALUE) + pts = reordered_pts; + else + pts = dts; + + return pts; +} + +static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt) +{ + int size = 0, ret; + const uint8_t *data; + uint32_t flags; + int64_t val; + + data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); + if (!data) + return 0; + + if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) { + av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter " + "changes, but PARAM_CHANGE side data was sent to it.\n"); + ret = AVERROR(EINVAL); + goto fail2; + } + + if (size < 4) + goto fail; + + flags = bytestream_get_le32(&data); + size -= 4; + + if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { + if (size < 4) + goto fail; + val = bytestream_get_le32(&data); + if (val <= 0 || val > INT_MAX) { + av_log(avctx, AV_LOG_ERROR, "Invalid channel count"); + ret = AVERROR_INVALIDDATA; + goto fail2; + } + avctx->channels = val; + size -= 4; + } + if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { + if (size < 8) + goto fail; + avctx->channel_layout = bytestream_get_le64(&data); + size -= 8; + } + if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { + if (size < 4) + goto fail; + val = bytestream_get_le32(&data); + if (val <= 0 || val > INT_MAX) { + av_log(avctx, AV_LOG_ERROR, "Invalid sample rate"); + ret = AVERROR_INVALIDDATA; + goto fail2; + } + avctx->sample_rate = val; + size -= 4; + } + if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { + if (size < 8) + goto fail; + avctx->width = bytestream_get_le32(&data); + avctx->height = bytestream_get_le32(&data); + size -= 8; + ret = ff_set_dimensions(avctx, avctx->width, avctx->height); + if (ret < 0) + goto fail2; + } + + return 0; +fail: + av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n"); + ret = AVERROR_INVALIDDATA; +fail2: + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); + if (avctx->err_recognition & AV_EF_EXPLODE) + return ret; + } + return 0; +} + +static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame) +{ + int ret; + + /* move the original frame to our backup */ + av_frame_unref(avci->to_free); + av_frame_move_ref(avci->to_free, frame); + + /* now copy everything except the AVBufferRefs back + * note that we make a COPY of the side data, so calling av_frame_free() on + * the caller's frame will work properly */ + ret = av_frame_copy_props(frame, avci->to_free); + if (ret < 0) + return ret; + + memcpy(frame->data, avci->to_free->data, sizeof(frame->data)); + memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize)); + if (avci->to_free->extended_data != avci->to_free->data) { + int planes = av_frame_get_channels(avci->to_free); + int size = planes * sizeof(*frame->extended_data); + + if (!size) { + av_frame_unref(frame); + return AVERROR_BUG; + } + + frame->extended_data = av_malloc(size); + if (!frame->extended_data) { + av_frame_unref(frame); + return AVERROR(ENOMEM); + } + memcpy(frame->extended_data, avci->to_free->extended_data, + size); + } else + frame->extended_data = frame->data; + + frame->format = avci->to_free->format; + frame->width = avci->to_free->width; + frame->height = avci->to_free->height; + frame->channel_layout = avci->to_free->channel_layout; + frame->nb_samples = avci->to_free->nb_samples; + av_frame_set_channels(frame, av_frame_get_channels(avci->to_free)); + + return 0; +} + +int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, + int *got_picture_ptr, + const AVPacket *avpkt) +{ + AVCodecInternal *avci = avctx->internal; + int ret; + // copy to ensure we do not change avpkt + AVPacket tmp = *avpkt; + + if (!avctx->codec) + return AVERROR(EINVAL); + if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) { + av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n"); + return AVERROR(EINVAL); + } + + if (!avctx->codec->decode) { + av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n"); + return AVERROR(ENOSYS); + } + + *got_picture_ptr = 0; + if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) + return AVERROR(EINVAL); + + avctx->internal->pkt = avpkt; + ret = apply_param_change(avctx, avpkt); + if (ret < 0) + return ret; + + av_frame_unref(picture); + + if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || + (avctx->active_thread_type & FF_THREAD_FRAME)) { + int did_split = av_packet_split_side_data(&tmp); + ret = apply_param_change(avctx, &tmp); + if (ret < 0) + goto fail; + + avctx->internal->pkt = &tmp; + if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) + ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, + &tmp); + else { + ret = avctx->codec->decode(avctx, picture, got_picture_ptr, + &tmp); + if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS)) + picture->pkt_dts = avpkt->dts; + + if(!avctx->has_b_frames){ + av_frame_set_pkt_pos(picture, avpkt->pos); + } + //FIXME these should be under if(!avctx->has_b_frames) + /* get_buffer is supposed to set frame parameters */ + if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) { + if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio; + if (!picture->width) picture->width = avctx->width; + if (!picture->height) picture->height = avctx->height; + if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt; + } + } + +fail: + emms_c(); //needed to avoid an emms_c() call before every return; + + avctx->internal->pkt = NULL; + if (did_split) { + av_packet_free_side_data(&tmp); + if(ret == tmp.size) + ret = avpkt->size; + } + + if (*got_picture_ptr) { + if (!avctx->refcounted_frames) { + int err = unrefcount_frame(avci, picture); + if (err < 0) + return err; + } + + avctx->frame_number++; + av_frame_set_best_effort_timestamp(picture, + guess_correct_pts(avctx, + picture->pkt_pts, + picture->pkt_dts)); + } else + av_frame_unref(picture); + } else + ret = 0; + + /* many decoders assign whole AVFrames, thus overwriting extended_data; + * make sure it's set correctly */ + av_assert0(!picture->extended_data || picture->extended_data == picture->data); + +#if FF_API_AVCTX_TIMEBASE + if (avctx->framerate.num > 0 && avctx->framerate.den > 0) + avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1})); +#endif + + return ret; +} + +int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, + AVFrame *frame, + int *got_frame_ptr, + const AVPacket *avpkt) +{ + AVCodecInternal *avci = avctx->internal; + int ret = 0; + + *got_frame_ptr = 0; + + if (!avctx->codec) + return AVERROR(EINVAL); + + if (!avctx->codec->decode) { + av_log(avctx, AV_LOG_ERROR, "This decoder requires using the avcodec_send_packet() API.\n"); + return AVERROR(ENOSYS); + } + + if (!avpkt->data && avpkt->size) { + av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); + return AVERROR(EINVAL); + } + if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) { + av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n"); + return AVERROR(EINVAL); + } + + av_frame_unref(frame); + + if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { + uint8_t *side; + int side_size; + uint32_t discard_padding = 0; + uint8_t skip_reason = 0; + uint8_t discard_reason = 0; + // copy to ensure we do not change avpkt + AVPacket tmp = *avpkt; + int did_split = av_packet_split_side_data(&tmp); + ret = apply_param_change(avctx, &tmp); + if (ret < 0) + goto fail; + + avctx->internal->pkt = &tmp; + if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) + ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp); + else { + ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp); + av_assert0(ret <= tmp.size); + frame->pkt_dts = avpkt->dts; + } + if (ret >= 0 && *got_frame_ptr) { + avctx->frame_number++; + av_frame_set_best_effort_timestamp(frame, + guess_correct_pts(avctx, + frame->pkt_pts, + frame->pkt_dts)); + if (frame->format == AV_SAMPLE_FMT_NONE) + frame->format = avctx->sample_fmt; + if (!frame->channel_layout) + frame->channel_layout = avctx->channel_layout; + if (!av_frame_get_channels(frame)) + av_frame_set_channels(frame, avctx->channels); + if (!frame->sample_rate) + frame->sample_rate = avctx->sample_rate; + } + + side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size); + if(side && side_size>=10) { + avctx->internal->skip_samples = AV_RL32(side); + discard_padding = AV_RL32(side + 4); + av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n", + avctx->internal->skip_samples, (int)discard_padding); + skip_reason = AV_RL8(side + 8); + discard_reason = AV_RL8(side + 9); + } + if (avctx->internal->skip_samples > 0 && *got_frame_ptr && + !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) { + if(frame->nb_samples <= avctx->internal->skip_samples){ + *got_frame_ptr = 0; + avctx->internal->skip_samples -= frame->nb_samples; + av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n", + avctx->internal->skip_samples); + } else { + av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples, + frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format); + if(avctx->pkt_timebase.num && avctx->sample_rate) { + int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples, + (AVRational){1, avctx->sample_rate}, + avctx->pkt_timebase); + if(frame->pkt_pts!=AV_NOPTS_VALUE) + frame->pkt_pts += diff_ts; + if(frame->pkt_dts!=AV_NOPTS_VALUE) + frame->pkt_dts += diff_ts; + if (av_frame_get_pkt_duration(frame) >= diff_ts) + av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts); + } else { + av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n"); + } + av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n", + avctx->internal->skip_samples, frame->nb_samples); + frame->nb_samples -= avctx->internal->skip_samples; + avctx->internal->skip_samples = 0; + } + } + + if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr && + !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) { + if (discard_padding == frame->nb_samples) { + *got_frame_ptr = 0; + } else { + if(avctx->pkt_timebase.num && avctx->sample_rate) { + int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding, + (AVRational){1, avctx->sample_rate}, + avctx->pkt_timebase); + av_frame_set_pkt_duration(frame, diff_ts); + } else { + av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n"); + } + av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n", + (int)discard_padding, frame->nb_samples); + frame->nb_samples -= discard_padding; + } + } + + if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && *got_frame_ptr) { + AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10); + if (fside) { + AV_WL32(fside->data, avctx->internal->skip_samples); + AV_WL32(fside->data + 4, discard_padding); + AV_WL8(fside->data + 8, skip_reason); + AV_WL8(fside->data + 9, discard_reason); + avctx->internal->skip_samples = 0; + } + } +fail: + avctx->internal->pkt = NULL; + if (did_split) { + av_packet_free_side_data(&tmp); + if(ret == tmp.size) + ret = avpkt->size; + } + + if (ret >= 0 && *got_frame_ptr) { + if (!avctx->refcounted_frames) { + int err = unrefcount_frame(avci, frame); + if (err < 0) + return err; + } + } else + av_frame_unref(frame); + } + + av_assert0(ret <= avpkt->size); + + return ret; +} + +#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */ +static int recode_subtitle(AVCodecContext *avctx, + AVPacket *outpkt, const AVPacket *inpkt) +{ +#if CONFIG_ICONV + iconv_t cd = (iconv_t)-1; + int ret = 0; + char *inb, *outb; + size_t inl, outl; + AVPacket tmp; +#endif + + if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0) + return 0; + +#if CONFIG_ICONV + cd = iconv_open("UTF-8", avctx->sub_charenc); + av_assert0(cd != (iconv_t)-1); + + inb = inpkt->data; + inl = inpkt->size; + + if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) { + av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n"); + ret = AVERROR(ENOMEM); + goto end; + } + + ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES); + if (ret < 0) + goto end; + outpkt->buf = tmp.buf; + outpkt->data = tmp.data; + outpkt->size = tmp.size; + outb = outpkt->data; + outl = outpkt->size; + + if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 || + iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 || + outl >= outpkt->size || inl != 0) { + ret = FFMIN(AVERROR(errno), -1); + av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" " + "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc); + av_packet_unref(&tmp); + goto end; + } + outpkt->size -= outl; + memset(outpkt->data + outpkt->size, 0, outl); + +end: + if (cd != (iconv_t)-1) + iconv_close(cd); + return ret; +#else + av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv"); + return AVERROR(EINVAL); +#endif +} + +static int utf8_check(const uint8_t *str) +{ + const uint8_t *byte; + uint32_t codepoint, min; + + while (*str) { + byte = str; + GET_UTF8(codepoint, *(byte++), return 0;); + min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 : + 1 << (5 * (byte - str) - 4); + if (codepoint < min || codepoint >= 0x110000 || + codepoint == 0xFFFE /* BOM */ || + codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */) + return 0; + str = byte; + } + return 1; +} + +#if FF_API_ASS_TIMING +static void insert_ts(AVBPrint *buf, int ts) +{ + if (ts == -1) { + av_bprintf(buf, "9:59:59.99,"); + } else { + int h, m, s; + + h = ts/360000; ts -= 360000*h; + m = ts/ 6000; ts -= 6000*m; + s = ts/ 100; ts -= 100*s; + av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts); + } +} + +static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb) +{ + int i; + AVBPrint buf; + + av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); + + for (i = 0; i < sub->num_rects; i++) { + char *final_dialog; + const char *dialog; + AVSubtitleRect *rect = sub->rects[i]; + int ts_start, ts_duration = -1; + long int layer; + + if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10)) + continue; + + av_bprint_clear(&buf); + + /* skip ReadOrder */ + dialog = strchr(rect->ass, ','); + if (!dialog) + continue; + dialog++; + + /* extract Layer or Marked */ + layer = strtol(dialog, (char**)&dialog, 10); + if (*dialog != ',') + continue; + dialog++; + + /* rescale timing to ASS time base (ms) */ + ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100)); + if (pkt->duration != -1) + ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100)); + sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration); + + /* construct ASS (standalone file form with timestamps) string */ + av_bprintf(&buf, "Dialogue: %ld,", layer); + insert_ts(&buf, ts_start); + insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration); + av_bprintf(&buf, "%s\r\n", dialog); + + final_dialog = av_strdup(buf.str); + if (!av_bprint_is_complete(&buf) || !final_dialog) { + av_freep(&final_dialog); + av_bprint_finalize(&buf, NULL); + return AVERROR(ENOMEM); + } + av_freep(&rect->ass); + rect->ass = final_dialog; + } + + av_bprint_finalize(&buf, NULL); + return 0; +} +#endif + +int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, + int *got_sub_ptr, + AVPacket *avpkt) +{ + int i, ret = 0; + + if (!avpkt->data && avpkt->size) { + av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); + return AVERROR(EINVAL); + } + if (!avctx->codec) + return AVERROR(EINVAL); + if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) { + av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n"); + return AVERROR(EINVAL); + } + + *got_sub_ptr = 0; + get_subtitle_defaults(sub); + + if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) { + AVPacket pkt_recoded; + AVPacket tmp = *avpkt; + int did_split = av_packet_split_side_data(&tmp); + //apply_param_change(avctx, &tmp); + + if (did_split) { + /* FFMIN() prevents overflow in case the packet wasn't allocated with + * proper padding. + * If the side data is smaller than the buffer padding size, the + * remaining bytes should have already been filled with zeros by the + * original packet allocation anyway. */ + memset(tmp.data + tmp.size, 0, + FFMIN(avpkt->size - tmp.size, AV_INPUT_BUFFER_PADDING_SIZE)); + } + + pkt_recoded = tmp; + ret = recode_subtitle(avctx, &pkt_recoded, &tmp); + if (ret < 0) { + *got_sub_ptr = 0; + } else { + avctx->internal->pkt = &pkt_recoded; + + if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE) + sub->pts = av_rescale_q(avpkt->pts, + avctx->pkt_timebase, AV_TIME_BASE_Q); + ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded); + av_assert1((ret >= 0) >= !!*got_sub_ptr && + !!*got_sub_ptr >= !!sub->num_rects); + +#if FF_API_ASS_TIMING + if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS + && *got_sub_ptr && sub->num_rects) { + const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase + : avctx->time_base; + int err = convert_sub_to_old_ass_form(sub, avpkt, tb); + if (err < 0) + ret = err; + } +#endif + + if (sub->num_rects && !sub->end_display_time && avpkt->duration && + avctx->pkt_timebase.num) { + AVRational ms = { 1, 1000 }; + sub->end_display_time = av_rescale_q(avpkt->duration, + avctx->pkt_timebase, ms); + } + + for (i = 0; i < sub->num_rects; i++) { + if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) { + av_log(avctx, AV_LOG_ERROR, + "Invalid UTF-8 in decoded subtitles text; " + "maybe missing -sub_charenc option\n"); + avsubtitle_free(sub); + return AVERROR_INVALIDDATA; + } + } + + if (tmp.data != pkt_recoded.data) { // did we recode? + /* prevent from destroying side data from original packet */ + pkt_recoded.side_data = NULL; + pkt_recoded.side_data_elems = 0; + + av_packet_unref(&pkt_recoded); + } + if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) + sub->format = 0; + else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB) + sub->format = 1; + avctx->internal->pkt = NULL; + } + + if (did_split) { + av_packet_free_side_data(&tmp); + if(ret == tmp.size) + ret = avpkt->size; + } + + if (*got_sub_ptr) + avctx->frame_number++; + } + + return ret; +} + +void avsubtitle_free(AVSubtitle *sub) +{ + int i; + + for (i = 0; i < sub->num_rects; i++) { + av_freep(&sub->rects[i]->data[0]); + av_freep(&sub->rects[i]->data[1]); + av_freep(&sub->rects[i]->data[2]); + av_freep(&sub->rects[i]->data[3]); + av_freep(&sub->rects[i]->text); + av_freep(&sub->rects[i]->ass); + av_freep(&sub->rects[i]); + } + + av_freep(&sub->rects); + + memset(sub, 0, sizeof(AVSubtitle)); +} + +static int do_decode(AVCodecContext *avctx, AVPacket *pkt) +{ + int got_frame; + int ret; + + av_assert0(!avctx->internal->buffer_frame->buf[0]); + + if (!pkt) + pkt = avctx->internal->buffer_pkt; + + // This is the lesser evil. The field is for compatibility with legacy users + // of the legacy API, and users using the new API should not be forced to + // even know about this field. + avctx->refcounted_frames = 1; + + // Some codecs (at least wma lossless) will crash when feeding drain packets + // after EOF was signaled. + if (avctx->internal->draining_done) + return AVERROR_EOF; + + if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { + ret = avcodec_decode_video2(avctx, avctx->internal->buffer_frame, + &got_frame, pkt); + if (ret >= 0) + ret = pkt->size; + } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { + ret = avcodec_decode_audio4(avctx, avctx->internal->buffer_frame, + &got_frame, pkt); + } else { + ret = AVERROR(EINVAL); + } + + if (ret == AVERROR(EAGAIN)) + ret = pkt->size; + + if (ret < 0) + return ret; + + if (avctx->internal->draining && !got_frame) + avctx->internal->draining_done = 1; + + if (ret >= pkt->size) { + av_packet_unref(avctx->internal->buffer_pkt); + } else { + int consumed = ret; + + if (pkt != avctx->internal->buffer_pkt) { + av_packet_unref(avctx->internal->buffer_pkt); + if ((ret = av_packet_ref(avctx->internal->buffer_pkt, pkt)) < 0) + return ret; + } + + avctx->internal->buffer_pkt->data += consumed; + avctx->internal->buffer_pkt->size -= consumed; + avctx->internal->buffer_pkt->pts = AV_NOPTS_VALUE; + avctx->internal->buffer_pkt->dts = AV_NOPTS_VALUE; + } + + if (got_frame) + av_assert0(avctx->internal->buffer_frame->buf[0]); + + return 0; +} + +int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt) +{ + int ret; + + if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec)) + return AVERROR(EINVAL); + + if (avctx->internal->draining) + return AVERROR_EOF; + + if (!avpkt || !avpkt->size) { + avctx->internal->draining = 1; + avpkt = NULL; + + if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) + return 0; + } + + if (avctx->codec->send_packet) { + if (avpkt) { + AVPacket tmp = *avpkt; + int did_split = av_packet_split_side_data(&tmp); + ret = apply_param_change(avctx, &tmp); + if (ret >= 0) + ret = avctx->codec->send_packet(avctx, &tmp); + if (did_split) + av_packet_free_side_data(&tmp); + return ret; + } else { + return avctx->codec->send_packet(avctx, NULL); + } + } + + // Emulation via old API. Assume avpkt is likely not refcounted, while + // decoder output is always refcounted, and avoid copying. + + if (avctx->internal->buffer_pkt->size || avctx->internal->buffer_frame->buf[0]) + return AVERROR(EAGAIN); + + // The goal is decoding the first frame of the packet without using memcpy, + // because the common case is having only 1 frame per packet (especially + // with video, but audio too). In other cases, it can't be avoided, unless + // the user is feeding refcounted packets. + return do_decode(avctx, (AVPacket *)avpkt); +} + +int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame) +{ + int ret; + + av_frame_unref(frame); + + if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec)) + return AVERROR(EINVAL); + + if (avctx->codec->receive_frame) { + if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) + return AVERROR_EOF; + return avctx->codec->receive_frame(avctx, frame); + } + + // Emulation via old API. + + if (!avctx->internal->buffer_frame->buf[0]) { + if (!avctx->internal->buffer_pkt->size && !avctx->internal->draining) + return AVERROR(EAGAIN); + + while (1) { + if ((ret = do_decode(avctx, avctx->internal->buffer_pkt)) < 0) { + av_packet_unref(avctx->internal->buffer_pkt); + return ret; + } + // Some audio decoders may consume partial data without returning + // a frame (fate-wmapro-2ch). There is no way to make the caller + // call avcodec_receive_frame() again without returning a frame, + // so try to decode more in these cases. + if (avctx->internal->buffer_frame->buf[0] || + !avctx->internal->buffer_pkt->size) + break; + } + } + + if (!avctx->internal->buffer_frame->buf[0]) + return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN); + + av_frame_move_ref(frame, avctx->internal->buffer_frame); + return 0; +} + +static int do_encode(AVCodecContext *avctx, const AVFrame *frame, int *got_packet) +{ + int ret; + *got_packet = 0; + + av_packet_unref(avctx->internal->buffer_pkt); + avctx->internal->buffer_pkt_valid = 0; + + if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { + ret = avcodec_encode_video2(avctx, avctx->internal->buffer_pkt, + frame, got_packet); + } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { + ret = avcodec_encode_audio2(avctx, avctx->internal->buffer_pkt, + frame, got_packet); + } else { + ret = AVERROR(EINVAL); + } + + if (ret >= 0 && *got_packet) { + // Encoders must always return ref-counted buffers. + // Side-data only packets have no data and can be not ref-counted. + av_assert0(!avctx->internal->buffer_pkt->data || avctx->internal->buffer_pkt->buf); + avctx->internal->buffer_pkt_valid = 1; + ret = 0; + } else { + av_packet_unref(avctx->internal->buffer_pkt); + } + + return ret; +} + +int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame) +{ + if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) + return AVERROR(EINVAL); + + if (avctx->internal->draining) + return AVERROR_EOF; + + if (!frame) { + avctx->internal->draining = 1; + + if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) + return 0; + } + + if (avctx->codec->send_frame) + return avctx->codec->send_frame(avctx, frame); + + // Emulation via old API. Do it here instead of avcodec_receive_packet, because: + // 1. if the AVFrame is not refcounted, the copying will be much more + // expensive than copying the packet data + // 2. assume few users use non-refcounted AVPackets, so usually no copy is + // needed + + if (avctx->internal->buffer_pkt_valid) + return AVERROR(EAGAIN); + + return do_encode(avctx, frame, &(int){0}); +} + +int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt) +{ + av_packet_unref(avpkt); + + if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec)) + return AVERROR(EINVAL); + + if (avctx->codec->receive_packet) { + if (avctx->internal->draining && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) + return AVERROR_EOF; + return avctx->codec->receive_packet(avctx, avpkt); + } + + // Emulation via old API. + + if (!avctx->internal->buffer_pkt_valid) { + int got_packet; + int ret; + if (!avctx->internal->draining) + return AVERROR(EAGAIN); + ret = do_encode(avctx, NULL, &got_packet); + if (ret < 0) + return ret; + if (ret >= 0 && !got_packet) + return AVERROR_EOF; + } + + av_packet_move_ref(avpkt, avctx->internal->buffer_pkt); + avctx->internal->buffer_pkt_valid = 0; + return 0; +} + +av_cold int avcodec_close(AVCodecContext *avctx) +{ + int i; + + if (!avctx) + return 0; + + if (avcodec_is_open(avctx)) { + FramePool *pool = avctx->internal->pool; + if (CONFIG_FRAME_THREAD_ENCODER && + avctx->internal->frame_thread_encoder && avctx->thread_count > 1) { + ff_frame_thread_encoder_free(avctx); + } + if (HAVE_THREADS && avctx->internal->thread_ctx) + ff_thread_free(avctx); + if (avctx->codec && avctx->codec->close) + avctx->codec->close(avctx); + avctx->internal->byte_buffer_size = 0; + av_freep(&avctx->internal->byte_buffer); + av_frame_free(&avctx->internal->to_free); + av_frame_free(&avctx->internal->buffer_frame); + av_packet_free(&avctx->internal->buffer_pkt); + for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++) + av_buffer_pool_uninit(&pool->pools[i]); + av_freep(&avctx->internal->pool); + + if (avctx->hwaccel && avctx->hwaccel->uninit) + avctx->hwaccel->uninit(avctx); + av_freep(&avctx->internal->hwaccel_priv_data); + + av_freep(&avctx->internal); + } + + for (i = 0; i < avctx->nb_coded_side_data; i++) + av_freep(&avctx->coded_side_data[i].data); + av_freep(&avctx->coded_side_data); + avctx->nb_coded_side_data = 0; + + av_buffer_unref(&avctx->hw_frames_ctx); + + if (avctx->priv_data && avctx->codec && avctx->codec->priv_class) + av_opt_free(avctx->priv_data); + av_opt_free(avctx); + av_freep(&avctx->priv_data); + if (av_codec_is_encoder(avctx->codec)) { + av_freep(&avctx->extradata); +#if FF_API_CODED_FRAME +FF_DISABLE_DEPRECATION_WARNINGS + av_frame_free(&avctx->coded_frame); +FF_ENABLE_DEPRECATION_WARNINGS +#endif + } + avctx->codec = NULL; + avctx->active_thread_type = 0; + + return 0; +} + +static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id) +{ + switch(id){ + //This is for future deprecatec codec ids, its empty since + //last major bump but will fill up again over time, please don't remove it + default : return id; + } +} + +static AVCodec *find_encdec(enum AVCodecID id, int encoder) +{ + AVCodec *p, *experimental = NULL; + p = first_avcodec; + id= remap_deprecated_codec_id(id); + while (p) { + if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) && + p->id == id) { + if (p->capabilities & AV_CODEC_CAP_EXPERIMENTAL && !experimental) { + experimental = p; + } else + return p; + } + p = p->next; + } + return experimental; +} + +AVCodec *avcodec_find_encoder(enum AVCodecID id) +{ + return find_encdec(id, 1); +} + +AVCodec *avcodec_find_encoder_by_name(const char *name) +{ + AVCodec *p; + if (!name) + return NULL; + p = first_avcodec; + while (p) { + if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0) + return p; + p = p->next; + } + return NULL; +} + +AVCodec *avcodec_find_decoder(enum AVCodecID id) +{ + return find_encdec(id, 0); +} + +AVCodec *avcodec_find_decoder_by_name(const char *name) +{ + AVCodec *p; + if (!name) + return NULL; + p = first_avcodec; + while (p) { + if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0) + return p; + p = p->next; + } + return NULL; +} + +const char *avcodec_get_name(enum AVCodecID id) +{ + const AVCodecDescriptor *cd; + AVCodec *codec; + + if (id == AV_CODEC_ID_NONE) + return "none"; + cd = avcodec_descriptor_get(id); + if (cd) + return cd->name; + av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id); + codec = avcodec_find_decoder(id); + if (codec) + return codec->name; + codec = avcodec_find_encoder(id); + if (codec) + return codec->name; + return "unknown_codec"; +} + +size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag) +{ + int i, len, ret = 0; + +#define TAG_PRINT(x) \ + (((x) >= '0' && (x) <= '9') || \ + ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \ + ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_')) + + for (i = 0; i < 4; i++) { + len = snprintf(buf, buf_size, + TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF); + buf += len; + buf_size = buf_size > len ? buf_size - len : 0; + ret += len; + codec_tag >>= 8; + } + return ret; +} + +void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) +{ + const char *codec_type; + const char *codec_name; + const char *profile = NULL; + int64_t bitrate; + int new_line = 0; + AVRational display_aspect_ratio; + const char *separator = enc->dump_separator ? (const char *)enc->dump_separator : ", "; + + if (!buf || buf_size <= 0) + return; + codec_type = av_get_media_type_string(enc->codec_type); + codec_name = avcodec_get_name(enc->codec_id); + profile = avcodec_profile_name(enc->codec_id, enc->profile); + + snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown", + codec_name); + buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */ + + if (enc->codec && strcmp(enc->codec->name, codec_name)) + snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name); + + if (profile) + snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile); + if ( enc->codec_type == AVMEDIA_TYPE_VIDEO + && av_log_get_level() >= AV_LOG_VERBOSE + && enc->refs) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", %d reference frame%s", + enc->refs, enc->refs > 1 ? "s" : ""); + + if (enc->codec_tag) { + char tag_buf[32]; + av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag); + snprintf(buf + strlen(buf), buf_size - strlen(buf), + " (%s / 0x%04X)", tag_buf, enc->codec_tag); + } + + switch (enc->codec_type) { + case AVMEDIA_TYPE_VIDEO: + { + char detail[256] = "("; + + av_strlcat(buf, separator, buf_size); + + snprintf(buf + strlen(buf), buf_size - strlen(buf), + "%s", enc->pix_fmt == AV_PIX_FMT_NONE ? "none" : + av_get_pix_fmt_name(enc->pix_fmt)); + if (enc->bits_per_raw_sample && enc->pix_fmt != AV_PIX_FMT_NONE && + enc->bits_per_raw_sample < av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth) + av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample); + if (enc->color_range != AVCOL_RANGE_UNSPECIFIED) + av_strlcatf(detail, sizeof(detail), "%s, ", + av_color_range_name(enc->color_range)); + + if (enc->colorspace != AVCOL_SPC_UNSPECIFIED || + enc->color_primaries != AVCOL_PRI_UNSPECIFIED || + enc->color_trc != AVCOL_TRC_UNSPECIFIED) { + if (enc->colorspace != (int)enc->color_primaries || + enc->colorspace != (int)enc->color_trc) { + new_line = 1; + av_strlcatf(detail, sizeof(detail), "%s/%s/%s, ", + av_color_space_name(enc->colorspace), + av_color_primaries_name(enc->color_primaries), + av_color_transfer_name(enc->color_trc)); + } else + av_strlcatf(detail, sizeof(detail), "%s, ", + av_get_colorspace_name(enc->colorspace)); + } + + if (av_log_get_level() >= AV_LOG_DEBUG && + enc->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED) + av_strlcatf(detail, sizeof(detail), "%s, ", + av_chroma_location_name(enc->chroma_sample_location)); + + if (strlen(detail) > 1) { + detail[strlen(detail) - 2] = 0; + av_strlcatf(buf, buf_size, "%s)", detail); + } + } + + if (enc->width) { + av_strlcat(buf, new_line ? separator : ", ", buf_size); + + snprintf(buf + strlen(buf), buf_size - strlen(buf), + "%dx%d", + enc->width, enc->height); + + if (av_log_get_level() >= AV_LOG_VERBOSE && + (enc->width != enc->coded_width || + enc->height != enc->coded_height)) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + " (%dx%d)", enc->coded_width, enc->coded_height); + + if (enc->sample_aspect_ratio.num) { + av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, + enc->width * (int64_t)enc->sample_aspect_ratio.num, + enc->height * (int64_t)enc->sample_aspect_ratio.den, + 1024 * 1024); + snprintf(buf + strlen(buf), buf_size - strlen(buf), + " [SAR %d:%d DAR %d:%d]", + enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den, + display_aspect_ratio.num, display_aspect_ratio.den); + } + if (av_log_get_level() >= AV_LOG_DEBUG) { + int g = av_gcd(enc->time_base.num, enc->time_base.den); + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", %d/%d", + enc->time_base.num / g, enc->time_base.den / g); + } + } + if (encode) { + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", q=%d-%d", enc->qmin, enc->qmax); + } else { + if (enc->properties & FF_CODEC_PROPERTY_CLOSED_CAPTIONS) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", Closed Captions"); + if (enc->properties & FF_CODEC_PROPERTY_LOSSLESS) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", lossless"); + } + break; + case AVMEDIA_TYPE_AUDIO: + av_strlcat(buf, separator, buf_size); + + if (enc->sample_rate) { + snprintf(buf + strlen(buf), buf_size - strlen(buf), + "%d Hz, ", enc->sample_rate); + } + av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout); + if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) { + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", %s", av_get_sample_fmt_name(enc->sample_fmt)); + } + if ( enc->bits_per_raw_sample > 0 + && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + " (%d bit)", enc->bits_per_raw_sample); + break; + case AVMEDIA_TYPE_DATA: + if (av_log_get_level() >= AV_LOG_DEBUG) { + int g = av_gcd(enc->time_base.num, enc->time_base.den); + if (g) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", %d/%d", + enc->time_base.num / g, enc->time_base.den / g); + } + break; + case AVMEDIA_TYPE_SUBTITLE: + if (enc->width) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", %dx%d", enc->width, enc->height); + break; + default: + return; + } + if (encode) { + if (enc->flags & AV_CODEC_FLAG_PASS1) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", pass 1"); + if (enc->flags & AV_CODEC_FLAG_PASS2) + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", pass 2"); + } + bitrate = get_bit_rate(enc); + if (bitrate != 0) { + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", %"PRId64" kb/s", bitrate / 1000); + } else if (enc->rc_max_rate > 0) { + snprintf(buf + strlen(buf), buf_size - strlen(buf), + ", max. %"PRId64" kb/s", (int64_t)enc->rc_max_rate / 1000); + } +} + +const char *av_get_profile_name(const AVCodec *codec, int profile) +{ + const AVProfile *p; + if (profile == FF_PROFILE_UNKNOWN || !codec->profiles) + return NULL; + + for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) + if (p->profile == profile) + return p->name; + + return NULL; +} + +const char *avcodec_profile_name(enum AVCodecID codec_id, int profile) +{ + const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id); + const AVProfile *p; + + if (profile == FF_PROFILE_UNKNOWN || !desc || !desc->profiles) + return NULL; + + for (p = desc->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) + if (p->profile == profile) + return p->name; + + return NULL; +} + +unsigned avcodec_version(void) +{ +// av_assert0(AV_CODEC_ID_V410==164); + av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563); + av_assert0(AV_CODEC_ID_ADPCM_G722==69660); +// av_assert0(AV_CODEC_ID_BMV_AUDIO==86071); + av_assert0(AV_CODEC_ID_SRT==94216); + av_assert0(LIBAVCODEC_VERSION_MICRO >= 100); + + return LIBAVCODEC_VERSION_INT; +} + +const char *avcodec_configuration(void) +{ + return FFMPEG_CONFIGURATION; +} + +const char *avcodec_license(void) +{ +#define LICENSE_PREFIX "libavcodec license: " + return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; +} + +void avcodec_flush_buffers(AVCodecContext *avctx) +{ + avctx->internal->draining = 0; + avctx->internal->draining_done = 0; + av_frame_unref(avctx->internal->buffer_frame); + av_packet_unref(avctx->internal->buffer_pkt); + avctx->internal->buffer_pkt_valid = 0; + + if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) + ff_thread_flush(avctx); + else if (avctx->codec->flush) + avctx->codec->flush(avctx); + + avctx->pts_correction_last_pts = + avctx->pts_correction_last_dts = INT64_MIN; + + if (!avctx->refcounted_frames) + av_frame_unref(avctx->internal->to_free); +} + +int av_get_exact_bits_per_sample(enum AVCodecID codec_id) +{ + switch (codec_id) { + case AV_CODEC_ID_8SVX_EXP: + case AV_CODEC_ID_8SVX_FIB: + case AV_CODEC_ID_ADPCM_CT: + case AV_CODEC_ID_ADPCM_IMA_APC: + case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: + case AV_CODEC_ID_ADPCM_IMA_OKI: + case AV_CODEC_ID_ADPCM_IMA_WS: + case AV_CODEC_ID_ADPCM_G722: + case AV_CODEC_ID_ADPCM_YAMAHA: + case AV_CODEC_ID_ADPCM_AICA: + return 4; + case AV_CODEC_ID_DSD_LSBF: + case AV_CODEC_ID_DSD_MSBF: + case AV_CODEC_ID_DSD_LSBF_PLANAR: + case AV_CODEC_ID_DSD_MSBF_PLANAR: + case AV_CODEC_ID_PCM_ALAW: + case AV_CODEC_ID_PCM_MULAW: + case AV_CODEC_ID_PCM_S8: + case AV_CODEC_ID_PCM_S8_PLANAR: + case AV_CODEC_ID_PCM_U8: + case AV_CODEC_ID_PCM_ZORK: + case AV_CODEC_ID_SDX2_DPCM: + return 8; + case AV_CODEC_ID_PCM_S16BE: + case AV_CODEC_ID_PCM_S16BE_PLANAR: + case AV_CODEC_ID_PCM_S16LE: + case AV_CODEC_ID_PCM_S16LE_PLANAR: + case AV_CODEC_ID_PCM_U16BE: + case AV_CODEC_ID_PCM_U16LE: + return 16; + case AV_CODEC_ID_PCM_S24DAUD: + case AV_CODEC_ID_PCM_S24BE: + case AV_CODEC_ID_PCM_S24LE: + case AV_CODEC_ID_PCM_S24LE_PLANAR: + case AV_CODEC_ID_PCM_U24BE: + case AV_CODEC_ID_PCM_U24LE: + return 24; + case AV_CODEC_ID_PCM_S32BE: + case AV_CODEC_ID_PCM_S32LE: + case AV_CODEC_ID_PCM_S32LE_PLANAR: + case AV_CODEC_ID_PCM_U32BE: + case AV_CODEC_ID_PCM_U32LE: + case AV_CODEC_ID_PCM_F32BE: + case AV_CODEC_ID_PCM_F32LE: + return 32; + case AV_CODEC_ID_PCM_F64BE: + case AV_CODEC_ID_PCM_F64LE: + return 64; + default: + return 0; + } +} + +enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be) +{ + static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = { + [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, + [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, + [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, + [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, + [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, + [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, + [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, + [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, + [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, + [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, + }; + if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB) + return AV_CODEC_ID_NONE; + if (be < 0 || be > 1) + be = AV_NE(1, 0); + return map[fmt][be]; +} + +int av_get_bits_per_sample(enum AVCodecID codec_id) +{ + switch (codec_id) { + case AV_CODEC_ID_ADPCM_SBPRO_2: + return 2; + case AV_CODEC_ID_ADPCM_SBPRO_3: + return 3; + case AV_CODEC_ID_ADPCM_SBPRO_4: + case AV_CODEC_ID_ADPCM_IMA_WAV: + case AV_CODEC_ID_ADPCM_IMA_QT: + case AV_CODEC_ID_ADPCM_SWF: + case AV_CODEC_ID_ADPCM_MS: + return 4; + default: + return av_get_exact_bits_per_sample(codec_id); + } +} + +static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, + uint32_t tag, int bits_per_coded_sample, int64_t bitrate, + uint8_t * extradata, int frame_size, int frame_bytes) +{ + int bps = av_get_exact_bits_per_sample(id); + int framecount = (ba > 0 && frame_bytes / ba > 0) ? frame_bytes / ba : 1; + + /* codecs with an exact constant bits per sample */ + if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768) + return (frame_bytes * 8LL) / (bps * ch); + bps = bits_per_coded_sample; + + /* codecs with a fixed packet duration */ + switch (id) { + case AV_CODEC_ID_ADPCM_ADX: return 32; + case AV_CODEC_ID_ADPCM_IMA_QT: return 64; + case AV_CODEC_ID_ADPCM_EA_XAS: return 128; + case AV_CODEC_ID_AMR_NB: + case AV_CODEC_ID_EVRC: + case AV_CODEC_ID_GSM: + case AV_CODEC_ID_QCELP: + case AV_CODEC_ID_RA_288: return 160; + case AV_CODEC_ID_AMR_WB: + case AV_CODEC_ID_GSM_MS: return 320; + case AV_CODEC_ID_MP1: return 384; + case AV_CODEC_ID_ATRAC1: return 512; + case AV_CODEC_ID_ATRAC3: return 1024 * framecount; + case AV_CODEC_ID_ATRAC3P: return 2048; + case AV_CODEC_ID_MP2: + case AV_CODEC_ID_MUSEPACK7: return 1152; + case AV_CODEC_ID_AC3: return 1536; + } + + if (sr > 0) { + /* calc from sample rate */ + if (id == AV_CODEC_ID_TTA) + return 256 * sr / 245; + else if (id == AV_CODEC_ID_DST) + return 588 * sr / 44100; + + if (ch > 0) { + /* calc from sample rate and channels */ + if (id == AV_CODEC_ID_BINKAUDIO_DCT) + return (480 << (sr / 22050)) / ch; + } + } + + if (ba > 0) { + /* calc from block_align */ + if (id == AV_CODEC_ID_SIPR) { + switch (ba) { + case 20: return 160; + case 19: return 144; + case 29: return 288; + case 37: return 480; + } + } else if (id == AV_CODEC_ID_ILBC) { + switch (ba) { + case 38: return 160; + case 50: return 240; + } + } + } + + if (frame_bytes > 0) { + /* calc from frame_bytes only */ + if (id == AV_CODEC_ID_TRUESPEECH) + return 240 * (frame_bytes / 32); + if (id == AV_CODEC_ID_NELLYMOSER) + return 256 * (frame_bytes / 64); + if (id == AV_CODEC_ID_RA_144) + return 160 * (frame_bytes / 20); + if (id == AV_CODEC_ID_G723_1) + return 240 * (frame_bytes / 24); + + if (bps > 0) { + /* calc from frame_bytes and bits_per_coded_sample */ + if (id == AV_CODEC_ID_ADPCM_G726) + return frame_bytes * 8 / bps; + } + + if (ch > 0 && ch < INT_MAX/16) { + /* calc from frame_bytes and channels */ + switch (id) { + case AV_CODEC_ID_ADPCM_AFC: + return frame_bytes / (9 * ch) * 16; + case AV_CODEC_ID_ADPCM_PSX: + case AV_CODEC_ID_ADPCM_DTK: + return frame_bytes / (16 * ch) * 28; + case AV_CODEC_ID_ADPCM_4XM: + case AV_CODEC_ID_ADPCM_IMA_DAT4: + case AV_CODEC_ID_ADPCM_IMA_ISS: + return (frame_bytes - 4 * ch) * 2 / ch; + case AV_CODEC_ID_ADPCM_IMA_SMJPEG: + return (frame_bytes - 4) * 2 / ch; + case AV_CODEC_ID_ADPCM_IMA_AMV: + return (frame_bytes - 8) * 2 / ch; + case AV_CODEC_ID_ADPCM_THP: + case AV_CODEC_ID_ADPCM_THP_LE: + if (extradata) + return frame_bytes * 14 / (8 * ch); + break; + case AV_CODEC_ID_ADPCM_XA: + return (frame_bytes / 128) * 224 / ch; + case AV_CODEC_ID_INTERPLAY_DPCM: + return (frame_bytes - 6 - ch) / ch; + case AV_CODEC_ID_ROQ_DPCM: + return (frame_bytes - 8) / ch; + case AV_CODEC_ID_XAN_DPCM: + return (frame_bytes - 2 * ch) / ch; + case AV_CODEC_ID_MACE3: + return 3 * frame_bytes / ch; + case AV_CODEC_ID_MACE6: + return 6 * frame_bytes / ch; + case AV_CODEC_ID_PCM_LXF: + return 2 * (frame_bytes / (5 * ch)); + case AV_CODEC_ID_IAC: + case AV_CODEC_ID_IMC: + return 4 * frame_bytes / ch; + } + + if (tag) { + /* calc from frame_bytes, channels, and codec_tag */ + if (id == AV_CODEC_ID_SOL_DPCM) { + if (tag == 3) + return frame_bytes / ch; + else + return frame_bytes * 2 / ch; + } + } + + if (ba > 0) { + /* calc from frame_bytes, channels, and block_align */ + int blocks = frame_bytes / ba; + switch (id) { + case AV_CODEC_ID_ADPCM_IMA_WAV: + if (bps < 2 || bps > 5) + return 0; + return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8); + case AV_CODEC_ID_ADPCM_IMA_DK3: + return blocks * (((ba - 16) * 2 / 3 * 4) / ch); + case AV_CODEC_ID_ADPCM_IMA_DK4: + return blocks * (1 + (ba - 4 * ch) * 2 / ch); + case AV_CODEC_ID_ADPCM_IMA_RAD: + return blocks * ((ba - 4 * ch) * 2 / ch); + case AV_CODEC_ID_ADPCM_MS: + return blocks * (2 + (ba - 7 * ch) * 2 / ch); + case AV_CODEC_ID_ADPCM_MTAF: + return blocks * (ba - 16) * 2 / ch; + } + } + + if (bps > 0) { + /* calc from frame_bytes, channels, and bits_per_coded_sample */ + switch (id) { + case AV_CODEC_ID_PCM_DVD: + if(bps<4) + return 0; + return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); + case AV_CODEC_ID_PCM_BLURAY: + if(bps<4) + return 0; + return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8); + case AV_CODEC_ID_S302M: + return 2 * (frame_bytes / ((bps + 4) / 4)) / ch; + } + } + } + } + + /* Fall back on using frame_size */ + if (frame_size > 1 && frame_bytes) + return frame_size; + + //For WMA we currently have no other means to calculate duration thus we + //do it here by assuming CBR, which is true for all known cases. + if (bitrate > 0 && frame_bytes > 0 && sr > 0 && ba > 1) { + if (id == AV_CODEC_ID_WMAV1 || id == AV_CODEC_ID_WMAV2) + return (frame_bytes * 8LL * sr) / bitrate; + } + + return 0; +} + +int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes) +{ + return get_audio_frame_duration(avctx->codec_id, avctx->sample_rate, + avctx->channels, avctx->block_align, + avctx->codec_tag, avctx->bits_per_coded_sample, + avctx->bit_rate, avctx->extradata, avctx->frame_size, + frame_bytes); +} + +int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes) +{ + return get_audio_frame_duration(par->codec_id, par->sample_rate, + par->channels, par->block_align, + par->codec_tag, par->bits_per_coded_sample, + par->bit_rate, par->extradata, par->frame_size, + frame_bytes); +} + +#if !HAVE_THREADS +int ff_thread_init(AVCodecContext *s) +{ + return -1; +} + +#endif + +unsigned int av_xiphlacing(unsigned char *s, unsigned int v) +{ + unsigned int n = 0; + + while (v >= 0xff) { + *s++ = 0xff; + v -= 0xff; + n++; + } + *s = v; + n++; + return n; +} + +int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b) +{ + int i; + for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ; + return i; +} + +#if FF_API_MISSING_SAMPLE +FF_DISABLE_DEPRECATION_WARNINGS +void av_log_missing_feature(void *avc, const char *feature, int want_sample) +{ + av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg " + "version to the newest one from Git. If the problem still " + "occurs, it means that your file has a feature which has not " + "been implemented.\n", feature); + if(want_sample) + av_log_ask_for_sample(avc, NULL); +} + +void av_log_ask_for_sample(void *avc, const char *msg, ...) +{ + va_list argument_list; + + va_start(argument_list, msg); + + if (msg) + av_vlog(avc, AV_LOG_WARNING, msg, argument_list); + av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample " + "of this file to ftp://upload.ffmpeg.org/incoming/ " + "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n"); + + va_end(argument_list); +} +FF_ENABLE_DEPRECATION_WARNINGS +#endif /* FF_API_MISSING_SAMPLE */ + +static AVHWAccel *first_hwaccel = NULL; +static AVHWAccel **last_hwaccel = &first_hwaccel; + +void av_register_hwaccel(AVHWAccel *hwaccel) +{ + AVHWAccel **p = last_hwaccel; + hwaccel->next = NULL; + while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel)) + p = &(*p)->next; + last_hwaccel = &hwaccel->next; +} + +AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel) +{ + return hwaccel ? hwaccel->next : first_hwaccel; +} + +int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) +{ + if (lockmgr_cb) { + // There is no good way to rollback a failure to destroy the + // mutex, so we ignore failures. + lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY); + lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY); + lockmgr_cb = NULL; + codec_mutex = NULL; + avformat_mutex = NULL; + } + + if (cb) { + void *new_codec_mutex = NULL; + void *new_avformat_mutex = NULL; + int err; + if (err = cb(&new_codec_mutex, AV_LOCK_CREATE)) { + return err > 0 ? AVERROR_UNKNOWN : err; + } + if (err = cb(&new_avformat_mutex, AV_LOCK_CREATE)) { + // Ignore failures to destroy the newly created mutex. + cb(&new_codec_mutex, AV_LOCK_DESTROY); + return err > 0 ? AVERROR_UNKNOWN : err; + } + lockmgr_cb = cb; + codec_mutex = new_codec_mutex; + avformat_mutex = new_avformat_mutex; + } + + return 0; +} + +int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec) +{ + if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init) + return 0; + + if (lockmgr_cb) { + if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) + return -1; + } + + if (avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, 1) != 1) { + av_log(log_ctx, AV_LOG_ERROR, + "Insufficient thread locking. At least %d threads are " + "calling avcodec_open2() at the same time right now.\n", + entangled_thread_counter); + if (!lockmgr_cb) + av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n"); + ff_avcodec_locked = 1; + ff_unlock_avcodec(codec); + return AVERROR(EINVAL); + } + av_assert0(!ff_avcodec_locked); + ff_avcodec_locked = 1; + return 0; +} + +int ff_unlock_avcodec(const AVCodec *codec) +{ + if (codec->caps_internal & FF_CODEC_CAP_INIT_THREADSAFE || !codec->init) + return 0; + + av_assert0(ff_avcodec_locked); + ff_avcodec_locked = 0; + avpriv_atomic_int_add_and_fetch(&entangled_thread_counter, -1); + if (lockmgr_cb) { + if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE)) + return -1; + } + + return 0; +} + +int avpriv_lock_avformat(void) +{ + if (lockmgr_cb) { + if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) + return -1; + } + return 0; +} + +int avpriv_unlock_avformat(void) +{ + if (lockmgr_cb) { + if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) + return -1; + } + return 0; +} + +unsigned int avpriv_toupper4(unsigned int x) +{ + return av_toupper(x & 0xFF) + + (av_toupper((x >> 8) & 0xFF) << 8) + + (av_toupper((x >> 16) & 0xFF) << 16) + +((unsigned)av_toupper((x >> 24) & 0xFF) << 24); +} + +int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src) +{ + int ret; + + dst->owner = src->owner; + + ret = av_frame_ref(dst->f, src->f); + if (ret < 0) + return ret; + + av_assert0(!dst->progress); + + if (src->progress && + !(dst->progress = av_buffer_ref(src->progress))) { + ff_thread_release_buffer(dst->owner, dst); + return AVERROR(ENOMEM); + } + + return 0; +} + +#if !HAVE_THREADS + +enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) +{ + return ff_get_format(avctx, fmt); +} + +int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags) +{ + f->owner = avctx; + return ff_get_buffer(avctx, f->f, flags); +} + +void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f) +{ + if (f->f) + av_frame_unref(f->f); +} + +void ff_thread_finish_setup(AVCodecContext *avctx) +{ +} + +void ff_thread_report_progress(ThreadFrame *f, int progress, int field) +{ +} + +void ff_thread_await_progress(ThreadFrame *f, int progress, int field) +{ +} + +int ff_thread_can_start_frame(AVCodecContext *avctx) +{ + return 1; +} + +int ff_alloc_entries(AVCodecContext *avctx, int count) +{ + return 0; +} + +void ff_reset_entries(AVCodecContext *avctx) +{ +} + +void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift) +{ +} + +void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n) +{ +} + +#endif + +int avcodec_is_open(AVCodecContext *s) +{ + return !!s->internal; +} + +int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf) +{ + int ret; + char *str; + + ret = av_bprint_finalize(buf, &str); + if (ret < 0) + return ret; + if (!av_bprint_is_complete(buf)) { + av_free(str); + return AVERROR(ENOMEM); + } + + avctx->extradata = str; + /* Note: the string is NUL terminated (so extradata can be read as a + * string), but the ending character is not accounted in the size (in + * binary formats you are likely not supposed to mux that character). When + * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE + * zeros. */ + avctx->extradata_size = buf->len; + return 0; +} + +const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p, + const uint8_t *end, + uint32_t *av_restrict state) +{ + int i; + + av_assert0(p <= end); + if (p >= end) + return end; + + for (i = 0; i < 3; i++) { + uint32_t tmp = *state << 8; + *state = tmp + *(p++); + if (tmp == 0x100 || p == end) + return p; + } + + while (p < end) { + if (p[-1] > 1 ) p += 3; + else if (p[-2] ) p += 2; + else if (p[-3]|(p[-1]-1)) p++; + else { + p++; + break; + } + } + + p = FFMIN(p, end) - 4; + *state = AV_RB32(p); + + return p + 4; +} + +AVCPBProperties *av_cpb_properties_alloc(size_t *size) +{ + AVCPBProperties *props = av_mallocz(sizeof(AVCPBProperties)); + if (!props) + return NULL; + + if (size) + *size = sizeof(*props); + + props->vbv_delay = UINT64_MAX; + + return props; +} + +AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx) +{ + AVPacketSideData *tmp; + AVCPBProperties *props; + size_t size; + + props = av_cpb_properties_alloc(&size); + if (!props) + return NULL; + + tmp = av_realloc_array(avctx->coded_side_data, avctx->nb_coded_side_data + 1, sizeof(*tmp)); + if (!tmp) { + av_freep(&props); + return NULL; + } + + avctx->coded_side_data = tmp; + avctx->nb_coded_side_data++; + + avctx->coded_side_data[avctx->nb_coded_side_data - 1].type = AV_PKT_DATA_CPB_PROPERTIES; + avctx->coded_side_data[avctx->nb_coded_side_data - 1].data = (uint8_t*)props; + avctx->coded_side_data[avctx->nb_coded_side_data - 1].size = size; + + return props; +} + +static void codec_parameters_reset(AVCodecParameters *par) +{ + av_freep(&par->extradata); + + memset(par, 0, sizeof(*par)); + + par->codec_type = AVMEDIA_TYPE_UNKNOWN; + par->codec_id = AV_CODEC_ID_NONE; + par->format = -1; + par->field_order = AV_FIELD_UNKNOWN; + par->color_range = AVCOL_RANGE_UNSPECIFIED; + par->color_primaries = AVCOL_PRI_UNSPECIFIED; + par->color_trc = AVCOL_TRC_UNSPECIFIED; + par->color_space = AVCOL_SPC_UNSPECIFIED; + par->chroma_location = AVCHROMA_LOC_UNSPECIFIED; + par->sample_aspect_ratio = (AVRational){ 0, 1 }; + par->profile = FF_PROFILE_UNKNOWN; + par->level = FF_LEVEL_UNKNOWN; +} + +AVCodecParameters *avcodec_parameters_alloc(void) +{ + AVCodecParameters *par = av_mallocz(sizeof(*par)); + + if (!par) + return NULL; + codec_parameters_reset(par); + return par; +} + +void avcodec_parameters_free(AVCodecParameters **ppar) +{ + AVCodecParameters *par = *ppar; + + if (!par) + return; + codec_parameters_reset(par); + + av_freep(ppar); +} + +int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src) +{ + codec_parameters_reset(dst); + memcpy(dst, src, sizeof(*dst)); + + dst->extradata = NULL; + dst->extradata_size = 0; + if (src->extradata) { + dst->extradata = av_mallocz(src->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); + if (!dst->extradata) + return AVERROR(ENOMEM); + memcpy(dst->extradata, src->extradata, src->extradata_size); + dst->extradata_size = src->extradata_size; + } + + return 0; +} + +int avcodec_parameters_from_context(AVCodecParameters *par, + const AVCodecContext *codec) +{ + codec_parameters_reset(par); + + par->codec_type = codec->codec_type; + par->codec_id = codec->codec_id; + par->codec_tag = codec->codec_tag; + + par->bit_rate = codec->bit_rate; + par->bits_per_coded_sample = codec->bits_per_coded_sample; + par->bits_per_raw_sample = codec->bits_per_raw_sample; + par->profile = codec->profile; + par->level = codec->level; + + switch (par->codec_type) { + case AVMEDIA_TYPE_VIDEO: + par->format = codec->pix_fmt; + par->width = codec->width; + par->height = codec->height; + par->field_order = codec->field_order; + par->color_range = codec->color_range; + par->color_primaries = codec->color_primaries; + par->color_trc = codec->color_trc; + par->color_space = codec->colorspace; + par->chroma_location = codec->chroma_sample_location; + par->sample_aspect_ratio = codec->sample_aspect_ratio; + par->video_delay = codec->has_b_frames; + break; + case AVMEDIA_TYPE_AUDIO: + par->format = codec->sample_fmt; + par->channel_layout = codec->channel_layout; + par->channels = codec->channels; + par->sample_rate = codec->sample_rate; + par->block_align = codec->block_align; + par->frame_size = codec->frame_size; + par->initial_padding = codec->initial_padding; + par->seek_preroll = codec->seek_preroll; + break; + case AVMEDIA_TYPE_SUBTITLE: + par->width = codec->width; + par->height = codec->height; + break; + } + + if (codec->extradata) { + par->extradata = av_mallocz(codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); + if (!par->extradata) + return AVERROR(ENOMEM); + memcpy(par->extradata, codec->extradata, codec->extradata_size); + par->extradata_size = codec->extradata_size; + } + + return 0; +} + +int avcodec_parameters_to_context(AVCodecContext *codec, + const AVCodecParameters *par) +{ + codec->codec_type = par->codec_type; + codec->codec_id = par->codec_id; + codec->codec_tag = par->codec_tag; + + codec->bit_rate = par->bit_rate; + codec->bits_per_coded_sample = par->bits_per_coded_sample; + codec->bits_per_raw_sample = par->bits_per_raw_sample; + codec->profile = par->profile; + codec->level = par->level; + + switch (par->codec_type) { + case AVMEDIA_TYPE_VIDEO: + codec->pix_fmt = par->format; + codec->width = par->width; + codec->height = par->height; + codec->field_order = par->field_order; + codec->color_range = par->color_range; + codec->color_primaries = par->color_primaries; + codec->color_trc = par->color_trc; + codec->colorspace = par->color_space; + codec->chroma_sample_location = par->chroma_location; + codec->sample_aspect_ratio = par->sample_aspect_ratio; + codec->has_b_frames = par->video_delay; + break; + case AVMEDIA_TYPE_AUDIO: + codec->sample_fmt = par->format; + codec->channel_layout = par->channel_layout; + codec->channels = par->channels; + codec->sample_rate = par->sample_rate; + codec->block_align = par->block_align; + codec->frame_size = par->frame_size; + codec->delay = + codec->initial_padding = par->initial_padding; + codec->seek_preroll = par->seek_preroll; + break; + case AVMEDIA_TYPE_SUBTITLE: + codec->width = par->width; + codec->height = par->height; + break; + } + + if (par->extradata) { + av_freep(&codec->extradata); + codec->extradata = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); + if (!codec->extradata) + return AVERROR(ENOMEM); + memcpy(codec->extradata, par->extradata, par->extradata_size); + codec->extradata_size = par->extradata_size; + } + + return 0; +} + +int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, + void **data, size_t *sei_size) +{ + AVFrameSideData *side_data = NULL; + uint8_t *sei_data; + + if (frame) + side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC); + + if (!side_data) { + *data = NULL; + return 0; + } + + *sei_size = side_data->size + 11; + *data = av_mallocz(*sei_size + prefix_len); + if (!*data) + return AVERROR(ENOMEM); + sei_data = (uint8_t*)*data + prefix_len; + + // country code + sei_data[0] = 181; + sei_data[1] = 0; + sei_data[2] = 49; + + /** + * 'GA94' is standard in North America for ATSC, but hard coding + * this style may not be the right thing to do -- other formats + * do exist. This information is not available in the side_data + * so we are going with this right now. + */ + AV_WL32(sei_data + 3, MKTAG('G', 'A', '9', '4')); + sei_data[7] = 3; + sei_data[8] = ((side_data->size/3) & 0x1f) | 0x40; + sei_data[9] = 0; + + memcpy(sei_data + 10, side_data->data, side_data->size); + + sei_data[side_data->size+10] = 255; + + return 0; +} |