[FFmpeg-trac] #1338(undetermined:new): FFMPEG creating broken MP4/Audio files with libx264

Sun Aug 5 09:19:54 CEST 2012

#1338: FFMPEG creating broken MP4/Audio files with libx264
-------------------------------------+-------------------------------------
             Reporter:  ramitbhalla  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by ramitbhalla):

 This command works fine, produces good audio

 {{{
 ffmpeg -i CSI.ts -crf 2 out.mp4

 ffmpeg version N-40824-g31dfe20 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May 19 2012 00:45:59 with gcc 4.6.3
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-runtime-cpudetect --enable-avisynth --enab
 le-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-
 libopencore-amrnb --enable-libopencore-amrwb --enable
 -libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-
 libopenjpeg --enable-librtmp --enable-libschro
 edinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-
 libvo-aacenc --enable-libvo-amrwbenc --enable-
 libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
 libxvid --enable-zlib
   libavutil      51. 53.100 / 51. 53.100
   libavcodec     54. 21.101 / 54. 21.101
   libavformat    54.  5.100 / 54.  5.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 74.101 /  2. 74.101
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 12.100 /  0. 12.100
   libpostproc    52.  0.100 / 52.  0.100
 [mp3 @ 02ec0e60] Header missing
 [mpeg2video @ 01d3c840] mpeg_decode_postinit() failure
     Last message repeated 7 times
 [mpegts @ 01d3bb80] max_analyze_duration 5000000 reached at 5016000
 Input #0, mpegts, from 'CSI.ts':
   Duration: 00:00:46.61, start: 14.737000, bitrate: 8185 kb/s
   Program 1
     Stream #0:0[0x1100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
 yuv420p, 720x480 [SAR 8:9 DAR 4:3], 9000 kb/s
 , 31.22 fps, 29.97 tbr, 90k tbn, 59.94 tbc
     Stream #0:1[0x1101]: Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz,
 stereo, s16, 384 kb/s
 [buffer @ 02fa0b60] w:720 h:480 pixfmt:yuv420p tb:1/1000000 sar:8/9
 sws_param:flags=2
 [buffersink @ 02fa0e40] No opaque field provided
 [abuffer @ 02ea66c0] format:s16 layout:stereo rate:48000
 [libx264 @ 0311f5c0] using SAR=8/9
 [libx264 @ 0311f5c0] using cpu capabilities: MMX2 SSE2Fast SSSE3
 FastShuffle SSE4.2
 [libx264 @ 0311f5c0] profile High, level 3.0
 [libx264 @ 0311f5c0] 264 - core 120 r2164 da19765 - H.264/MPEG-4 AVC codec
 - Copyleft 2003-2012 - http://www.videolan.or
 g/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113
 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
 e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
 fast_pskip=1 chroma_qp_offset=-2 threads=6 sliced_threads
 =0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0
 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 we
 ightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40
 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=2.
 0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 Output #0, mp4, to 'out.mp4':
   Metadata:
     encoder         : Lavf54.5.100
     Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuv420p, 720x480 [SAR
 8:9 DAR 4:3], q=-1--1, 30k tbn, 29.97 tbc
     Stream #0:1: Audio: aac (@[0][0][0] / 0x0040), 48000 Hz, stereo, s16,
 128 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg2video -> libx264)
   Stream #0:1 -> #0:1 (mp2 -> libvo_aacenc)
 Press [q] to stop, [?] for help
 [mp2 @ 02ec0e60] Header missing
 Error while decoding stream #0:1
 ac-tex damaged at 32 13.0 size=   93129kB time=00:00:44.67
 bitrate=17075.9kbits/s dup=11 drop=0
 [mpeg2video @ 01d3c840] Warning MVs not available
 [mpeg2video @ 01d3c840] concealing 765 DC, 765 AC, 765 MV errors
 [mp2 @ 02ec0e60] incomplete frame
 Error while decoding stream #0:1
 frame= 1398 fps= 19 q=-1.0 Lsize=   98213kB time=00:00:46.56
 bitrate=17279.9kbits/s dup=12 drop=0
 video:97436kB audio:727kB global headers:0kB muxing overhead 0.051065%
 [libx264 @ 0311f5c0] frame I:26    Avg QP: 1.86  size:127652
 [libx264 @ 0311f5c0] frame P:531   Avg QP: 3.23  size: 96782
 [libx264 @ 0311f5c0] frame B:841   Avg QP: 5.09  size: 53584
 [libx264 @ 0311f5c0] consecutive B-frames: 14.7% 11.4% 11.8% 62.1%
 [libx264 @ 0311f5c0] mb I  I16..4: 31.3% 34.3% 34.4%
 [libx264 @ 0311f5c0] mb P  I16..4: 21.2% 17.5% 15.1%  P16..4: 23.1% 12.1%
 9.5%  0.0%  0.0%    skip: 1.5%
 [libx264 @ 0311f5c0] mb B  I16..4:  2.3%  3.2%  2.2%  B16..8: 34.0% 11.5%
 7.7%  direct:36.2%  skip: 2.9%  L0:41.9% L1:3
 7.0% BI:21.1%
 [libx264 @ 0311f5c0] 8x8 transform intra:34.3% inter:60.0%
 [libx264 @ 0311f5c0] coded y,uvDC,uvAC intra: 78.1% 98.2% 97.1% inter:
 58.1% 86.7% 77.4%
 [libx264 @ 0311f5c0] i16 v,h,dc,p: 51% 17% 19% 13%
 [libx264 @ 0311f5c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 22% 31%  2%  3%
 3%  4%  4%  5%
 [libx264 @ 0311f5c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 36% 15%  4%  4%
 4%  4%  4%  5%
 [libx264 @ 0311f5c0] i8c dc,h,v,p: 55% 19% 15% 11%
 [libx264 @ 0311f5c0] Weighted P-Frames: Y:10.2% UV:7.5%
 [libx264 @ 0311f5c0] ref P L0: 53.6% 11.4% 22.0% 11.8%  1.2%
 [libx264 @ 0311f5c0] ref B L0: 81.7% 15.1%  3.2%
 [libx264 @ 0311f5c0] ref B L1: 91.1%  8.9%
 [libx264 @ 0311f5c0] kb/s:17111.43
 }}}

 Replying to [comment:11 cehoyos]:
 > Does the following produce a working file or is it sufficient to produce
 the broken file (or is a parameter missing for the encode to succeed)?
 > $ ffmpeg -i CSI.ts -crf 2 out.mp4

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1338#comment:12>
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