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Merge commit 'bacc2869f37b17b2a89e1083289fdaf7f95f27bc'

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* commit 'bacc2869f37b17b2a89e1083289fdaf7f95f27bc':
  mpeg12dec: parse frame packing arrangement user_data and save relevant stereo3d information

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-09 22:10:36 +01:00
commit 1dab49c344
1 changed files with 32 additions and 0 deletions
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32
libavcodec/mpeg12dec.c
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@ -27,6 +27,7 @@
#include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "libavutil/stereo3d.h"
#include "internal.h"
#include "avcodec.h"
#include "dsputil.h"
@ -2213,6 +2214,37 @@ static void mpeg_decode_user_data(AVCodecContext *avctx,
return;
avctx->dtg_active_format = p[0] & 0x0f;
}
} else if (buf_end - p >= 6 &&
p[0] == 'J' && p[1] == 'P' && p[2] == '3' && p[3] == 'D' &&
p[4] == 0x03) { // S3D_video_format_length
// the 0x7F mask ignores the reserved_bit value
const uint8_t S3D_video_format_type = p[5] & 0x7F;
if (S3D_video_format_type == 0x03 ||
S3D_video_format_type == 0x04 ||
S3D_video_format_type == 0x08 ||
S3D_video_format_type == 0x23) {
Mpeg1Context *s1 = avctx->priv_data;
MpegEncContext *s = &s1->mpeg_enc_ctx;
AVStereo3D *stereo = av_stereo3d_create_side_data(&s->current_picture_ptr->f);
if (!stereo)
return;
switch (S3D_video_format_type) {
case 0x03:
stereo->type = AV_STEREO3D_SIDEBYSIDE;
break;
case 0x04:
stereo->type = AV_STEREO3D_TOPBOTTOM;
break;
case 0x08:
stereo->type = AV_STEREO3D_2D;
break;
case 0x23:
stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
break;
}
}
} else if (mpeg_decode_a53_cc(avctx, p, buf_size)) {
return;
}