videolan/ffmpeg
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Extract colorspace fields from MPEG1/2.

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Originally committed as revision 18747 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-05-05 19:53:49 +00:00
parent 1e24f1b25d
commit 9c24cd7236
1 changed files with 4 additions and 3 deletions
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7
libavcodec/mpeg12.c
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@ -1188,6 +1188,7 @@ static av_cold int mpeg_decode_init(AVCodecContext *avctx)
s->mpeg_enc_ctx.picture_number = 0;
s->repeat_field = 0;
s->mpeg_enc_ctx.codec_id= avctx->codec->id;
avctx->color_range= AVCOL_RANGE_MPEG;
return 0;
}
@ -1420,9 +1421,9 @@ static void mpeg_decode_sequence_display_extension(Mpeg1Context *s1)
skip_bits(&s->gb, 3); /* video format */
color_description= get_bits1(&s->gb);
if(color_description){
skip_bits(&s->gb, 8); /* color primaries */
skip_bits(&s->gb, 8); /* transfer_characteristics */
skip_bits(&s->gb, 8); /* matrix_coefficients */
s->avctx->color_primaries= get_bits(&s->gb, 8);
s->avctx->color_trc = get_bits(&s->gb, 8);
s->avctx->colorspace = get_bits(&s->gb, 8);
}
w= get_bits(&s->gb, 14);
skip_bits(&s->gb, 1); //marker