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https://git.videolan.org/git/ffmpeg.git
synced 2024-09-06 08:08:58 +02:00
mpeg12: propagate chunk decode errors and fix conditional indentation
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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0d802ac54e
commit
09c274e067
@ -1911,6 +1911,8 @@ static int slice_decode_thread(AVCodecContext *c, void *arg){
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//av_log(c, AV_LOG_DEBUG, "ret:%d resync:%d/%d mb:%d/%d ts:%d/%d ec:%d\n",
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//ret, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, s->start_mb_y, s->end_mb_y, s->error_count);
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if(ret < 0){
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if (c->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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if(s->resync_mb_x>=0 && s->resync_mb_y>=0)
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ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, AC_ERROR|DC_ERROR|MV_ERROR);
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}else{
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@ -2265,8 +2267,10 @@ static int mpeg_decode_frame(AVCodecContext *avctx,
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s->slice_count= 0;
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if(avctx->extradata && !avctx->frame_number)
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decode_chunks(avctx, picture, data_size, avctx->extradata, avctx->extradata_size);
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if(avctx->extradata && !avctx->frame_number &&
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decode_chunks(avctx, picture, data_size, avctx->extradata, avctx->extradata_size) < 0 &&
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avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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return decode_chunks(avctx, picture, data_size, buf, buf_size);
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}
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@ -2318,11 +2322,13 @@ static int decode_chunks(AVCodecContext *avctx,
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switch(start_code) {
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case SEQ_START_CODE:
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if(last_code == 0){
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mpeg1_decode_sequence(avctx, buf_ptr,
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input_size);
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mpeg1_decode_sequence(avctx, buf_ptr,
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input_size);
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s->sync=1;
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}else{
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av_log(avctx, AV_LOG_ERROR, "ignoring SEQ_START_CODE after %X\n", last_code);
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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}
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break;
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@ -2351,6 +2357,8 @@ static int decode_chunks(AVCodecContext *avctx,
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last_code= PICTURE_START_CODE;
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}else{
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av_log(avctx, AV_LOG_ERROR, "ignoring pic after %X\n", last_code);
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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}
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break;
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case EXT_START_CODE:
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@ -2362,6 +2370,8 @@ static int decode_chunks(AVCodecContext *avctx,
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mpeg_decode_sequence_extension(s);
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}else{
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av_log(avctx, AV_LOG_ERROR, "ignoring seq ext after %X\n", last_code);
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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}
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break;
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case 0x2:
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@ -2378,6 +2388,8 @@ static int decode_chunks(AVCodecContext *avctx,
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mpeg_decode_picture_coding_extension(s);
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}else{
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av_log(avctx, AV_LOG_ERROR, "ignoring pic cod ext after %X\n", last_code);
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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}
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break;
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}
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@ -2394,6 +2406,8 @@ static int decode_chunks(AVCodecContext *avctx,
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s->sync=1;
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}else{
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av_log(avctx, AV_LOG_ERROR, "ignoring GOP_START_CODE after %X\n", last_code);
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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}
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break;
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default:
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@ -2438,6 +2452,8 @@ static int decode_chunks(AVCodecContext *avctx,
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if(!s2->pict_type){
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av_log(avctx, AV_LOG_ERROR, "Missing picture start code\n");
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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break;
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}
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@ -2448,6 +2464,8 @@ static int decode_chunks(AVCodecContext *avctx,
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}
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if(!s2->current_picture_ptr){
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av_log(avctx, AV_LOG_ERROR, "current_picture not initialized\n");
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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return -1;
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}
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@ -2476,6 +2494,8 @@ static int decode_chunks(AVCodecContext *avctx,
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emms_c();
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if(ret < 0){
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if (avctx->error_recognition >= FF_ER_EXPLODE)
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return AVERROR_INVALIDDATA;
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if(s2->resync_mb_x>=0 && s2->resync_mb_y>=0)
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ff_er_add_slice(s2, s2->resync_mb_x, s2->resync_mb_y, s2->mb_x, s2->mb_y, AC_ERROR|DC_ERROR|MV_ERROR);
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}else{
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