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| author | Jeff Downs <heydowns@borg.com> | 2007-10-04 06:50:44 +0000 |
|---|---|---|
| committer | Andreas Öman <andreas@lonelycoder.com> | 2007-10-04 06:50:44 +0000 |
| commit | 3a22d7fa1f55b91f4d1a41d8b54423226ef43387 (patch) | |
| tree | f787fd0d4dcaa1c4f55e04f622b38640f12e3b8c /libavcodec/h264.c | |
| parent | f57e2af68bb58d67c32612fb3e70a47b13d66695 (diff) | |
| download | ffmpeg-3a22d7fa1f55b91f4d1a41d8b54423226ef43387.tar.gz | |
Fix Picture.key_frame setting to be compatible with frame and field contexts. Part of PAFF implementation.
Contributed in part by Neil Brown.
patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30
Originally committed as revision 10664 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/h264.c')
| -rw-r--r-- | libavcodec/h264.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index b1bb071244..8487c86af7 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -2249,6 +2249,13 @@ static int frame_start(H264Context *h){ if(MPV_frame_start(s, s->avctx) < 0) return -1; ff_er_frame_start(s); + /* + * MPV_frame_start uses pict_type to derive key_frame. + * This is incorrect for H.264; IDR markings must be used. + * Zero here; IDR markings per slice in frame or fields are OR'd in later. + * See decode_nal_units(). + */ + s->current_picture_ptr->key_frame= 0; assert(s->linesize && s->uvlinesize); @@ -7189,7 +7196,7 @@ static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){ if((err = decode_slice_header(hx, h))) break; - s->current_picture_ptr->key_frame= (hx->nal_unit_type == NAL_IDR_SLICE); + s->current_picture_ptr->key_frame|= (hx->nal_unit_type == NAL_IDR_SLICE); if(hx->redundant_pic_count==0 && hx->s.hurry_up < 5 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc) && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type!=B_TYPE) |