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| author | Michael Niedermayer <michaelni@gmx.at> | 2009-12-05 03:53:12 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2009-12-05 03:53:12 +0000 |
| commit | 442d7dd85232042260ab8bff3622dced310a7ed9 (patch) | |
| tree | 722175389e88f8c81222418e53e1b0e3d5c86f4b /libavcodec/mpegvideo_parser.c | |
| parent | 11f6d0982cd5a05750c1d057684c324b8be972b1 (diff) | |
Make sure the parsers do not overwrite width/height as this can interfere
with the decoder.
Fixes issue1135.
Originally committed as revision 20736 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpegvideo_parser.c')
| -rw-r--r-- | libavcodec/mpegvideo_parser.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c index 215c86c400..537614bc5b 100644 --- a/libavcodec/mpegvideo_parser.c +++ b/libavcodec/mpegvideo_parser.c @@ -34,6 +34,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, int frame_rate_ext_n, frame_rate_ext_d; int picture_structure, top_field_first, repeat_first_field, progressive_frame; int horiz_size_ext, vert_size_ext, bit_rate_ext; + int did_set_size=0; //FIXME replace the crap with get_bits() s->repeat_pict = 0; buf_end = buf + buf_size; @@ -51,7 +52,10 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, if (bytes_left >= 7) { pc->width = (buf[0] << 4) | (buf[1] >> 4); pc->height = ((buf[1] & 0x0f) << 8) | buf[2]; + if(!avctx->width || !avctx->height || !avctx->coded_width || !avctx->coded_height){ avcodec_set_dimensions(avctx, pc->width, pc->height); + did_set_size=1; + } frame_rate_index = buf[3] & 0xf; pc->frame_rate.den = avctx->time_base.den = ff_frame_rate_tab[frame_rate_index].num; pc->frame_rate.num = avctx->time_base.num = ff_frame_rate_tab[frame_rate_index].den; @@ -77,6 +81,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, pc->width |=(horiz_size_ext << 12); pc->height |=( vert_size_ext << 12); avctx->bit_rate += (bit_rate_ext << 18) * 400; + if(did_set_size) avcodec_set_dimensions(avctx, pc->width, pc->height); avctx->time_base.den = pc->frame_rate.den * (frame_rate_ext_n + 1) * 2; avctx->time_base.num = pc->frame_rate.num * (frame_rate_ext_d + 1); |