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author | Moonchild <mcwerewolf@gmail.com> | 2018-10-01 15:25:04 +0200 |
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committer | GitHub <noreply@github.com> | 2018-10-01 15:25:04 +0200 |
commit | 45c24f05d023a2cd8289ed40a13708392ce2e6a4 (patch) | |
tree | fef75d382fc6216a093eeaf80560473dff19d883 /media/ffvpx/libavcodec/vp9_superframe_split_bsf.c | |
parent | 79b00fc33b5cb6d56d29b50efac6d62ce3a89018 (diff) | |
download | UXP-45c24f05d023a2cd8289ed40a13708392ce2e6a4.tar UXP-45c24f05d023a2cd8289ed40a13708392ce2e6a4.tar.gz UXP-45c24f05d023a2cd8289ed40a13708392ce2e6a4.tar.lz UXP-45c24f05d023a2cd8289ed40a13708392ce2e6a4.tar.xz UXP-45c24f05d023a2cd8289ed40a13708392ce2e6a4.zip |
Revert "Update ffvpx code to 4.0.2"
Diffstat (limited to 'media/ffvpx/libavcodec/vp9_superframe_split_bsf.c')
-rw-r--r-- | media/ffvpx/libavcodec/vp9_superframe_split_bsf.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/media/ffvpx/libavcodec/vp9_superframe_split_bsf.c b/media/ffvpx/libavcodec/vp9_superframe_split_bsf.c deleted file mode 100644 index 9c4aa33dc..000000000 --- a/media/ffvpx/libavcodec/vp9_superframe_split_bsf.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * 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 - * This bitstream filter splits VP9 superframes into packets containing - * just one frame. - */ - -#include <stddef.h> - -#include "avcodec.h" -#include "bsf.h" -#include "bytestream.h" -#include "get_bits.h" - -typedef struct VP9SFSplitContext { - AVPacket buffer_pkt; - - int nb_frames; - int next_frame; - size_t next_frame_offset; - int sizes[8]; -} VP9SFSplitContext; - -static int vp9_superframe_split_filter(AVBSFContext *ctx, AVPacket *out) -{ - VP9SFSplitContext *s = ctx->priv_data; - AVPacket *in; - int i, j, ret, marker; - int is_superframe = !!s->buffer_pkt.data; - - if (!s->buffer_pkt.data) { - ret = ff_bsf_get_packet_ref(ctx, &s->buffer_pkt); - if (ret < 0) - return ret; - in = &s->buffer_pkt; - - marker = in->data[in->size - 1]; - if ((marker & 0xe0) == 0xc0) { - int length_size = 1 + ((marker >> 3) & 0x3); - int nb_frames = 1 + (marker & 0x7); - int idx_size = 2 + nb_frames * length_size; - - if (in->size >= idx_size && in->data[in->size - idx_size] == marker) { - GetByteContext bc; - int64_t total_size = 0; - - bytestream2_init(&bc, in->data + in->size + 1 - idx_size, - nb_frames * length_size); - - for (i = 0; i < nb_frames; i++) { - int frame_size = 0; - for (j = 0; j < length_size; j++) - frame_size |= bytestream2_get_byte(&bc) << (j * 8); - - total_size += frame_size; - if (frame_size < 0 || total_size > in->size - idx_size) { - av_log(ctx, AV_LOG_ERROR, - "Invalid frame size in a superframe: %d\n", frame_size); - ret = AVERROR(EINVAL); - goto fail; - } - s->sizes[i] = frame_size; - } - s->nb_frames = nb_frames; - s->next_frame = 0; - s->next_frame_offset = 0; - is_superframe = 1; - } - } - } - - if (is_superframe) { - GetBitContext gb; - int profile, invisible = 0; - - ret = av_packet_ref(out, &s->buffer_pkt); - if (ret < 0) - goto fail; - - out->data += s->next_frame_offset; - out->size = s->sizes[s->next_frame]; - - s->next_frame_offset += out->size; - s->next_frame++; - - if (s->next_frame >= s->nb_frames) - av_packet_unref(&s->buffer_pkt); - - ret = init_get_bits8(&gb, out->data, out->size); - if (ret < 0) - goto fail; - - get_bits(&gb, 2); // frame_marker - profile = get_bits1(&gb); - profile |= get_bits1(&gb) << 1; - if (profile == 3) - get_bits1(&gb); - if (!get_bits1(&gb)) { - get_bits1(&gb); - invisible = !get_bits1(&gb); - } - - if (invisible) - out->pts = AV_NOPTS_VALUE; - - } else { - av_packet_move_ref(out, &s->buffer_pkt); - } - - return 0; -fail: - if (ret < 0) - av_packet_unref(out); - av_packet_unref(&s->buffer_pkt); - return ret; -} - -static void vp9_superframe_split_uninit(AVBSFContext *ctx) -{ - VP9SFSplitContext *s = ctx->priv_data; - av_packet_unref(&s->buffer_pkt); -} - -const AVBitStreamFilter ff_vp9_superframe_split_bsf = { - .name = "vp9_superframe_split", - .priv_data_size = sizeof(VP9SFSplitContext), - .close = vp9_superframe_split_uninit, - .filter = vp9_superframe_split_filter, - .codec_ids = (const enum AVCodecID []){ AV_CODEC_ID_VP9, AV_CODEC_ID_NONE }, -}; |