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Merge commit '3d9fc21e593aa89b5877bd739268499b079052f2'

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* commit '3d9fc21e593aa89b5877bd739268499b079052f2':
  h264: Refactor decode_frame_packing_arrangement

Conflicts:
	libavcodec/h264_sei.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-17 19:30:57 +01:00
commit d6acf45ec2
1 changed files with 12 additions and 21 deletions
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33
libavcodec/h264_sei.c
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@ -226,39 +226,30 @@ static int decode_buffering_period(H264Context *h)
static int decode_frame_packing_arrangement(H264Context *h)
{
int cancel;
int quincunx = 0;
int content = -1;
int type = -1;
h->sei_fpa.frame_packing_arrangement_id = get_ue_golomb(&h->gb);
cancel = get_bits(&h->gb, 1);
if (cancel == 0) {
type = get_bits(&h->gb, 7); // frame_packing_arrangement_type
quincunx = get_bits1(&h->gb); // quincunx_sampling_flag
content = get_bits(&h->gb, 6); // content_interpretation_type
h->sei_fpa.frame_packing_arrangement_cancel_flag = get_bits1(&h->gb);
h->sei_frame_packing_present = !h->sei_fpa.frame_packing_arrangement_cancel_flag;
if (h->sei_frame_packing_present) {
h->sei_fpa.frame_packing_arrangement_type =
h->frame_packing_arrangement_type = get_bits(&h->gb, 7);
h->sei_fpa.quincunx_sampling_flag =
h->quincunx_subsampling = get_bits1(&h->gb);
h->sei_fpa.content_interpretation_type =
h->content_interpretation_type = get_bits(&h->gb, 6);
// the following skips: spatial_flipping_flag, frame0_flipped_flag,
// field_views_flag, current_frame_is_frame0_flag,
// frame0_self_contained_flag, frame1_self_contained_flag
skip_bits(&h->gb, 6);
if (quincunx == 0 && type != 5)
if (!h->quincunx_subsampling && h->frame_packing_arrangement_type != 5)
skip_bits(&h->gb, 16); // frame[01]_grid_position_[xy]
skip_bits(&h->gb, 8); // frame_packing_arrangement_reserved_byte
h->sei_fpa.frame_packing_arrangement_repetition_period = get_ue_golomb(&h->gb) /* frame_packing_arrangement_repetition_period */;
}
skip_bits1(&h->gb); // frame_packing_arrangement_extension_flag
h->sei_frame_packing_present = (cancel == 0);
h->frame_packing_arrangement_type = type;
h->content_interpretation_type = content;
h->quincunx_subsampling = quincunx;
h->sei_fpa.frame_packing_arrangement_cancel_flag = cancel ;
h->sei_fpa.frame_packing_arrangement_type = type ;
h->sei_fpa.quincunx_sampling_flag = quincunx;
h->sei_fpa.content_interpretation_type = content ;
if (h->avctx->debug & FF_DEBUG_PICT_INFO)
av_log(h->avctx, AV_LOG_DEBUG, "SEI FPA %d %d %d %d %d %d\n",
h->sei_fpa.frame_packing_arrangement_id,