diff options
Diffstat (limited to 'media/ffvpx/libavcodec/options.c')
| -rw-r--r-- | media/ffvpx/libavcodec/options.c | 503 |
1 files changed, 503 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/options.c b/media/ffvpx/libavcodec/options.c new file mode 100644 index 000000000..f25df2ab3 --- /dev/null +++ b/media/ffvpx/libavcodec/options.c @@ -0,0 +1,503 @@ +/* + * 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 + * Options definition for AVCodecContext. + */ + +#include "avcodec.h" +#include "internal.h" +#include "libavutil/avassert.h" +#include "libavutil/internal.h" +#include "libavutil/mem.h" +#include "libavutil/opt.h" +#include <float.h> /* FLT_MIN, FLT_MAX */ +#include <string.h> + +FF_DISABLE_DEPRECATION_WARNINGS +#include "ff_options_table.h" +FF_ENABLE_DEPRECATION_WARNINGS + +static const char* context_to_name(void* ptr) { + AVCodecContext *avc= ptr; + + if(avc && avc->codec && avc->codec->name) + return avc->codec->name; + else + return "NULL"; +} + +static void *codec_child_next(void *obj, void *prev) +{ + AVCodecContext *s = obj; + if (!prev && s->codec && s->codec->priv_class && s->priv_data) + return s->priv_data; + return NULL; +} + +static const AVClass *codec_child_class_next(const AVClass *prev) +{ + AVCodec *c = NULL; + + /* find the codec that corresponds to prev */ + while (prev && (c = av_codec_next(c))) + if (c->priv_class == prev) + break; + + /* find next codec with priv options */ + while (c = av_codec_next(c)) + if (c->priv_class) + return c->priv_class; + return NULL; +} + +static AVClassCategory get_category(void *ptr) +{ + AVCodecContext* avctx = ptr; + if(avctx->codec && avctx->codec->decode) return AV_CLASS_CATEGORY_DECODER; + else return AV_CLASS_CATEGORY_ENCODER; +} + +static const AVClass av_codec_context_class = { + .class_name = "AVCodecContext", + .item_name = context_to_name, + .option = avcodec_options, + .version = LIBAVUTIL_VERSION_INT, + .log_level_offset_offset = offsetof(AVCodecContext, log_level_offset), + .child_next = codec_child_next, + .child_class_next = codec_child_class_next, + .category = AV_CLASS_CATEGORY_ENCODER, + .get_category = get_category, +}; + +static int init_context_defaults(AVCodecContext *s, const AVCodec *codec) +{ + int flags=0; + memset(s, 0, sizeof(AVCodecContext)); + + s->av_class = &av_codec_context_class; + + s->codec_type = codec ? codec->type : AVMEDIA_TYPE_UNKNOWN; + if (codec) { + s->codec = codec; + s->codec_id = codec->id; + } + + if(s->codec_type == AVMEDIA_TYPE_AUDIO) + flags= AV_OPT_FLAG_AUDIO_PARAM; + else if(s->codec_type == AVMEDIA_TYPE_VIDEO) + flags= AV_OPT_FLAG_VIDEO_PARAM; + else if(s->codec_type == AVMEDIA_TYPE_SUBTITLE) + flags= AV_OPT_FLAG_SUBTITLE_PARAM; + av_opt_set_defaults2(s, flags, flags); + + s->time_base = (AVRational){0,1}; + s->framerate = (AVRational){ 0, 1 }; + s->pkt_timebase = (AVRational){ 0, 1 }; + s->get_buffer2 = avcodec_default_get_buffer2; + s->get_format = avcodec_default_get_format; + s->execute = avcodec_default_execute; + s->execute2 = avcodec_default_execute2; + s->sample_aspect_ratio = (AVRational){0,1}; + s->pix_fmt = AV_PIX_FMT_NONE; + s->sample_fmt = AV_SAMPLE_FMT_NONE; + + s->reordered_opaque = AV_NOPTS_VALUE; + if(codec && codec->priv_data_size){ + if(!s->priv_data){ + s->priv_data= av_mallocz(codec->priv_data_size); + if (!s->priv_data) { + return AVERROR(ENOMEM); + } + } + if(codec->priv_class){ + *(const AVClass**)s->priv_data = codec->priv_class; + av_opt_set_defaults(s->priv_data); + } + } + if (codec && codec->defaults) { + int ret; + const AVCodecDefault *d = codec->defaults; + while (d->key) { + ret = av_opt_set(s, d->key, d->value, 0); + av_assert0(ret >= 0); + d++; + } + } + return 0; +} + +#if FF_API_GET_CONTEXT_DEFAULTS +int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec) +{ + return init_context_defaults(s, codec); +} +#endif + +AVCodecContext *avcodec_alloc_context3(const AVCodec *codec) +{ + AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext)); + + if (!avctx) + return NULL; + + if (init_context_defaults(avctx, codec) < 0) { + av_free(avctx); + return NULL; + } + + return avctx; +} + +void avcodec_free_context(AVCodecContext **pavctx) +{ + AVCodecContext *avctx = *pavctx; + + if (!avctx) + return; + + avcodec_close(avctx); + + av_freep(&avctx->extradata); + av_freep(&avctx->subtitle_header); + av_freep(&avctx->intra_matrix); + av_freep(&avctx->inter_matrix); + av_freep(&avctx->rc_override); + + av_freep(pavctx); +} + +#if FF_API_COPY_CONTEXT +int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src) +{ + const AVCodec *orig_codec = dest->codec; + uint8_t *orig_priv_data = dest->priv_data; + + if (avcodec_is_open(dest)) { // check that the dest context is uninitialized + av_log(dest, AV_LOG_ERROR, + "Tried to copy AVCodecContext %p into already-initialized %p\n", + src, dest); + return AVERROR(EINVAL); + } + + av_opt_free(dest); + av_freep(&dest->rc_override); + av_freep(&dest->intra_matrix); + av_freep(&dest->inter_matrix); + av_freep(&dest->extradata); + av_freep(&dest->subtitle_header); + + memcpy(dest, src, sizeof(*dest)); + av_opt_copy(dest, src); + + dest->priv_data = orig_priv_data; + dest->codec = orig_codec; + + if (orig_priv_data && src->codec && src->codec->priv_class && + dest->codec && dest->codec->priv_class) + av_opt_copy(orig_priv_data, src->priv_data); + + + /* set values specific to opened codecs back to their default state */ + dest->slice_offset = NULL; + dest->hwaccel = NULL; + dest->internal = NULL; +#if FF_API_CODED_FRAME +FF_DISABLE_DEPRECATION_WARNINGS + dest->coded_frame = NULL; +FF_ENABLE_DEPRECATION_WARNINGS +#endif + + /* reallocate values that should be allocated separately */ + dest->extradata = NULL; + dest->intra_matrix = NULL; + dest->inter_matrix = NULL; + dest->rc_override = NULL; + dest->subtitle_header = NULL; + dest->hw_frames_ctx = NULL; + +#define alloc_and_copy_or_fail(obj, size, pad) \ + if (src->obj && size > 0) { \ + dest->obj = av_malloc(size + pad); \ + if (!dest->obj) \ + goto fail; \ + memcpy(dest->obj, src->obj, size); \ + if (pad) \ + memset(((uint8_t *) dest->obj) + size, 0, pad); \ + } + alloc_and_copy_or_fail(extradata, src->extradata_size, + AV_INPUT_BUFFER_PADDING_SIZE); + dest->extradata_size = src->extradata_size; + alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0); + alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0); + alloc_and_copy_or_fail(rc_override, src->rc_override_count * sizeof(*src->rc_override), 0); + alloc_and_copy_or_fail(subtitle_header, src->subtitle_header_size, 1); + av_assert0(dest->subtitle_header_size == src->subtitle_header_size); +#undef alloc_and_copy_or_fail + + if (src->hw_frames_ctx) { + dest->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx); + if (!dest->hw_frames_ctx) + goto fail; + } + + return 0; + +fail: + av_freep(&dest->subtitle_header); + av_freep(&dest->rc_override); + av_freep(&dest->intra_matrix); + av_freep(&dest->inter_matrix); + av_freep(&dest->extradata); + av_buffer_unref(&dest->hw_frames_ctx); + dest->subtitle_header_size = 0; + dest->extradata_size = 0; + av_opt_free(dest); + return AVERROR(ENOMEM); +} +#endif + +const AVClass *avcodec_get_class(void) +{ + return &av_codec_context_class; +} + +#define FOFFSET(x) offsetof(AVFrame,x) + +static const AVOption frame_options[]={ +{"best_effort_timestamp", "", FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0}, +{"pkt_pos", "", FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0}, +{"pkt_size", "", FOFFSET(pkt_size), AV_OPT_TYPE_INT64, {.i64 = -1 }, INT64_MIN, INT64_MAX, 0}, +{"sample_aspect_ratio", "", FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0}, +{"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.i64 = -1 }, 0, INT_MAX, 0}, +{"channel_layout", "", FOFFSET(channel_layout), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, 0}, +{"sample_rate", "", FOFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{NULL}, +}; + +static const AVClass av_frame_class = { + .class_name = "AVFrame", + .item_name = NULL, + .option = frame_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +const AVClass *avcodec_get_frame_class(void) +{ + return &av_frame_class; +} + +#define SROFFSET(x) offsetof(AVSubtitleRect,x) + +static const AVOption subtitle_rect_options[]={ +{"x", "", SROFFSET(x), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"y", "", SROFFSET(y), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"w", "", SROFFSET(w), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"h", "", SROFFSET(h), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"type", "", SROFFSET(type), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, 0}, +{"flags", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0, "flags"}, +{"forced", "", SROFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, 1, 0}, +{NULL}, +}; + +static const AVClass av_subtitle_rect_class = { + .class_name = "AVSubtitleRect", + .item_name = NULL, + .option = subtitle_rect_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +const AVClass *avcodec_get_subtitle_rect_class(void) +{ + return &av_subtitle_rect_class; +} + +#ifdef TEST +static int dummy_init(AVCodecContext *ctx) +{ + //TODO: this code should set every possible pointer that could be set by codec and is not an option; + ctx->extradata_size = 8; + ctx->extradata = av_malloc(ctx->extradata_size); + return 0; +} + +static int dummy_close(AVCodecContext *ctx) +{ + av_freep(&ctx->extradata); + ctx->extradata_size = 0; + return 0; +} + +static int dummy_encode(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet) +{ + return AVERROR(ENOSYS); +} + +typedef struct Dummy12Context { + AVClass *av_class; + int num; + char* str; +} Dummy12Context; + +typedef struct Dummy3Context { + void *fake_av_class; + int num; + char* str; +} Dummy3Context; + +#define OFFSET(x) offsetof(Dummy12Context, x) +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM +static const AVOption dummy_options[] = { + { "str", "set str", OFFSET(str), AV_OPT_TYPE_STRING, { .str = "i'm src default value" }, 0, 0, VE}, + { "num", "set num", OFFSET(num), AV_OPT_TYPE_INT, { .i64 = 1500100900 }, 0, INT_MAX, VE}, + { NULL }, +}; + +static const AVClass dummy_v1_class = { + .class_name = "dummy_v1_class", + .item_name = av_default_item_name, + .option = dummy_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +static const AVClass dummy_v2_class = { + .class_name = "dummy_v2_class", + .item_name = av_default_item_name, + .option = dummy_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +/* codec with options */ +static AVCodec dummy_v1_encoder = { + .name = "dummy_v1_codec", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_NONE - 1, + .encode2 = dummy_encode, + .init = dummy_init, + .close = dummy_close, + .priv_class = &dummy_v1_class, + .priv_data_size = sizeof(Dummy12Context), +}; + +/* codec with options, different class */ +static AVCodec dummy_v2_encoder = { + .name = "dummy_v2_codec", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_NONE - 2, + .encode2 = dummy_encode, + .init = dummy_init, + .close = dummy_close, + .priv_class = &dummy_v2_class, + .priv_data_size = sizeof(Dummy12Context), +}; + +/* codec with priv data, but no class */ +static AVCodec dummy_v3_encoder = { + .name = "dummy_v3_codec", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_NONE - 3, + .encode2 = dummy_encode, + .init = dummy_init, + .close = dummy_close, + .priv_data_size = sizeof(Dummy3Context), +}; + +/* codec without priv data */ +static AVCodec dummy_v4_encoder = { + .name = "dummy_v4_codec", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_NONE - 4, + .encode2 = dummy_encode, + .init = dummy_init, + .close = dummy_close, +}; + +static void test_copy_print_codec(const AVCodecContext *ctx) +{ + printf("%-14s: %dx%d prv: %s", + ctx->codec ? ctx->codec->name : "NULL", + ctx->width, ctx->height, + ctx->priv_data ? "set" : "null"); + if (ctx->codec && ctx->codec->priv_class && ctx->codec->priv_data_size) { + int64_t i64; + char *str = NULL; + av_opt_get_int(ctx->priv_data, "num", 0, &i64); + av_opt_get(ctx->priv_data, "str", 0, (uint8_t**)&str); + printf(" opts: %"PRId64" %s", i64, str); + av_free(str); + } + printf("\n"); +} + +static void test_copy(const AVCodec *c1, const AVCodec *c2) +{ + AVCodecContext *ctx1, *ctx2; + printf("%s -> %s\nclosed:\n", c1 ? c1->name : "NULL", c2 ? c2->name : "NULL"); + ctx1 = avcodec_alloc_context3(c1); + ctx2 = avcodec_alloc_context3(c2); + ctx1->width = ctx1->height = 128; + if (ctx2->codec && ctx2->codec->priv_class && ctx2->codec->priv_data_size) { + av_opt_set(ctx2->priv_data, "num", "667", 0); + av_opt_set(ctx2->priv_data, "str", "i'm dest value before copy", 0); + } + avcodec_copy_context(ctx2, ctx1); + test_copy_print_codec(ctx1); + test_copy_print_codec(ctx2); + if (ctx1->codec) { + printf("opened:\n"); + avcodec_open2(ctx1, ctx1->codec, NULL); + if (ctx2->codec && ctx2->codec->priv_class && ctx2->codec->priv_data_size) { + av_opt_set(ctx2->priv_data, "num", "667", 0); + av_opt_set(ctx2->priv_data, "str", "i'm dest value before copy", 0); + } + avcodec_copy_context(ctx2, ctx1); + test_copy_print_codec(ctx1); + test_copy_print_codec(ctx2); + avcodec_close(ctx1); + } + avcodec_free_context(&ctx1); + avcodec_free_context(&ctx2); +} + +int main(void) +{ + AVCodec *dummy_codec[] = { + &dummy_v1_encoder, + &dummy_v2_encoder, + &dummy_v3_encoder, + &dummy_v4_encoder, + NULL, + }; + int i, j; + + for (i = 0; dummy_codec[i]; i++) + avcodec_register(dummy_codec[i]); + + printf("testing avcodec_copy_context()\n"); + for (i = 0; i < FF_ARRAY_ELEMS(dummy_codec); i++) + for (j = 0; j < FF_ARRAY_ELEMS(dummy_codec); j++) + test_copy(dummy_codec[i], dummy_codec[j]); + return 0; +} +#endif |