id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
628	Frame copy concealment is not working for h.264	hardiksharma	michael	"I am trying to decode from .264 to yuv format.
I dropped slices (one by one) in h.264 file format and then decoded the .264 to yuv format. During decoding, decoder is dropping the respective frame if I drop the slice which contain whole frame. This type of scenario only comes with B frame till now where my frame size is lesser then slice size. 

Command line to decode- ffmpeg -b:v 512k -r 30 -i error_$sliceno.264 -b:v 512k -x264opts sar=352:288 -r 30 -y decode_$sliceno.yuv 

{{{
ffmpeg version N-34140-g246c8da, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 28 2011 12:04:45 with gcc 4.4.5
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab
  libavutil    51. 22. 0 / 51. 22. 0
  libavcodec   53. 23. 0 / 53. 23. 0
  libavformat  53. 17. 0 / 53. 17. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 45. 1 /  2. 45. 1
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0
[h264 @ 0xa845c20] Format h264 probed with size=2048 and score=51
[h264 @ 0xa84c0a0] err{or,}_recognition separate: 1; 1
[h264 @ 0xa84c0a0] err{or,}_recognition combined: 1; 1
[h264 @ 0xa84c0a0] no picture
[h264 @ 0xa84c0a0] Possibly too many slices (16 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (17 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (18 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (19 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (20 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (24 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (33 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (36 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (40 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (44 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (75 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa845c20] max_analyze_duration 5000000 reached at 5000000
[h264 @ 0xa845c20] Estimating duration from bitrate, this may be inaccurate

Seems stream 0 codec frame rate differs from container frame rate: 60.00 (60/1) -> 30.00 (60/2)
Input #0, h264, from 'error_4942.264':
  Duration: N/A, bitrate: N/A
    Stream #0:0, 152, 1/1200000: Video: h264 (High), yuv420p, 352x288, 1/60, 30 fps, 30 tbr, 1200k tbn, 60 tbc
[buffer @ 0xa9c9140] w:352 h:288 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[rawvideo @ 0xa84d880] err{or,}_recognition separate: 1; 1
[rawvideo @ 0xa84d880] err{or,}_recognition combined: 1; 1
[h264 @ 0xa84c0a0] err{or,}_recognition separate: 1; 1
[h264 @ 0xa84c0a0] err{or,}_recognition combined: 1; 1
Output #0, rawvideo, to 'out_4942.yuv':
  Metadata:
    encoder         : Lavf53.17.0
    Stream #0:0, 0, 1/90000: Video: rawvideo (I420 / 0x30323449), yuv420p, 352x288, 1/30, q=2-31, 512 kb/s, 90k tbn, 30 tbc
Stream mapping:
  Stream #0.0 -> #0.0 (h264 -> rawvideo)
Press [q] to stop, [?] for help
[h264 @ 0xa84c0a0] no picture
[h264 @ 0xa84c0a0] Possibly too many slices (16 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (17 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (18 >= 16), increase MAX_SLICES and recompile if there are artifacts

...

[h264 @ 0xa84c0a0] Possibly too many slices (203 >= 16), increase MAX_SLICES and recompile if there are artifacts
[h264 @ 0xa84c0a0] Possibly too many slices (204 >= 16), increase MAX_SLICES and recompile if there are artifacts
frame=  299 fps=  0 q=0.0 Lsize=   44402kB time=00:00:09.96 bitrate=36495.4kbits/s    

video:44402kB audio:0kB global headers:0kB muxing overhead 0.000000%
}}}"	defect	new	normal	undetermined	git-master		h264				0	0