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authorJeff Downs <heydowns@borg.com>2007-10-02 14:25:47 +0000
committerAndreas Ă–man <andreas@lonelycoder.com>2007-10-02 14:25:47 +0000
commitbcc3476c984ad3e74757205aa8e6bcf8716aac08 (patch)
tree6566623eda4b901064eb41c3c1c234a2e4ac4de3 /libavcodec
parentb1ef3dfd2ba4abbdf8e0dfafa5b10df9ead8a3c2 (diff)
downloadffmpeg-bcc3476c984ad3e74757205aa8e6bcf8716aac08.tar.gz
Cosmetic preparations for h264/PAFF implementation.
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 10645 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/h264.h10
-rw-r--r--libavcodec/mpegvideo.h5
2 files changed, 9 insertions, 6 deletions
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 8dd6cdd1af..0fd28ad632 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -84,8 +84,8 @@ typedef struct SPS{
int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
int ref_frame_count; ///< num_ref_frames
int gaps_in_frame_num_allowed_flag;
- int mb_width; ///< frame_width_in_mbs_minus1 + 1
- int mb_height; ///< frame_height_in_mbs_minus1 + 1
+ int mb_width; ///< pic_width_in_mbs_minus1 + 1
+ int mb_height; ///< pic_height_in_map_units_minus1 + 1
int frame_mbs_only_flag;
int mb_aff; ///<mb_adaptive_frame_field_flag
int direct_8x8_inference_flag;
@@ -323,8 +323,10 @@ typedef struct H264Context{
unsigned int list_count;
Picture *short_ref[32];
Picture *long_ref[32];
- Picture default_ref_list[2][32];
- Picture ref_list[2][48]; ///< 0..15: frame refs, 16..47: mbaff field refs
+ Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
+ Picture ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
+ Reordered version of default_ref_list
+ according to picture reordering in slice header */
Picture *delayed_pic[18]; //FIXME size?
Picture *delayed_output_pic;
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 86cd39e638..4e39902392 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -138,8 +138,9 @@ typedef struct Picture{
int field_poc[2]; ///< h264 top/bottom POC
int poc; ///< h264 frame POC
- int frame_num; ///< h264 frame_num
- int pic_id; ///< h264 pic_num or long_term_pic_idx
+ int frame_num; ///< h264 frame_num (raw frame_num from slice header)
+ int pic_id; /**< h264 pic_num (short -> no wrap version of pic_num,
+ pic_num & max_pic_num; long -> long_pic_num) */
int long_ref; ///< 1->long term reference 0->short term reference
int ref_poc[2][16]; ///< h264 POCs of the frames used as reference
int ref_count[2]; ///< number of entries in ref_poc