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avcodec/mpegvideo_parser: Check the ff_set_dimensions() return code

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-01-18 04:46:03 +01:00
parent 741fa0493b
commit dff6c9250b
1 changed files with 6 additions and 2 deletions

8
libavcodec/mpegvideo_parser.c
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@ -44,6 +44,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
int top_field_first, repeat_first_field, progressive_frame;
int horiz_size_ext, vert_size_ext, bit_rate_ext;
int did_set_size=0;
int set_dim_ret = 0;
int bit_rate = 0;
int vbv_delay = 0;
//FIXME replace the crap with get_bits()
@ -66,7 +67,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
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){
ff_set_dimensions(avctx, pc->width, pc->height);
set_dim_ret = ff_set_dimensions(avctx, pc->width, pc->height);
did_set_size=1;
}
frame_rate_index = buf[3] & 0xf;
@ -94,7 +95,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
pc->height = (pc->height& 0xFFF) | ( vert_size_ext << 12);
bit_rate = (bit_rate&0x3FFFF) | (bit_rate_ext << 18);
if(did_set_size)
ff_set_dimensions(avctx, pc->width, pc->height);
set_dim_ret = ff_set_dimensions(avctx, pc->width, pc->height);
avctx->framerate.num = pc->frame_rate.num * (frame_rate_ext_n + 1);
avctx->framerate.den = pc->frame_rate.den * (frame_rate_ext_d + 1);
avctx->codec_id = AV_CODEC_ID_MPEG2VIDEO;
@ -144,6 +145,9 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
}
}
the_end: ;
if (set_dim_ret < 0)
av_log(avctx, AV_LOG_ERROR, "Failed to set dimensions\n");
if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO && bit_rate) {
avctx->rc_max_rate = 400*bit_rate;
}