[FFmpeg-trac] #5719(avutil:new): Using -stream_loop is wrong duration output

FFmpeg trac at avcodec.org
Sat Jul 16 16:24:20 EEST 2016


#5719: Using -stream_loop is wrong duration output
--------------------------------+--------------------------------------
             Reporter:  nicol   |                     Type:  defect
               Status:  new     |                 Priority:  normal
            Component:  avutil  |                  Version:  git-master
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+--------------------------------------
 Summary of the bug: Codec copy or re encode using -stream_loop option
 wrong output duration time, but output frames is fine.
 How to reproduce:
 {{{
 Create sample file.
 ffmpeg -f lavfi -i testsrc2=d=1 -f lavfi -i anullsrc=r=48000:cl=stereo
 -shortest -vcodec libx264 -acodec aac sample.mkv

 Then use stream_loop option.

 Output is fine.
 ffmpeg.exe -stream_loop 1 -i sample.mkv -vcodec copy sample-v-copy.mp4 -y
 ffmpeg.exe -stream_loop 1 -i sample.mkv sample-no-copy.mp4 -y

 Wrong output duration time.
 L:\>ffmpeg.exe -v 9 -loglevel 99 -stream_loop 1 -i sample.mkv -c copy
 sample-c-copy.mp4 -y
 ffmpeg version N-80999-gf41e37b Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.4.0 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-
 bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-
 gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b
 --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm
 --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-
 libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-librtmp --enable-libschroedinger --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis
 --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
 --enable-lzma --enable-decklink --enable-zlib
   libavutil      55. 28.100 / 55. 28.100
   libavcodec     57. 50.100 / 57. 50.100
   libavformat    57. 41.100 / 57. 41.100
   libavdevice    57.  0.102 / 57.  0.102
   libavfilter     6. 47.100 /  6. 47.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-stream_loop' ... matched as option 'stream_loop' (set
 number of times input stream shall be looped) with argument '1'.
 Reading option '-i' ... matched as input file with argument 'sample.mkv'.
 Reading option '-c' ... matched as option 'c' (codec name) with argument
 'copy'.
 Reading option 'sample-c-copy.mp4' ... matched as output file.
 Reading option '-y' ... matched as option 'y' (overwrite output files)
 with argument '1'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Applying option y (overwrite output files) with argument 1.
 Successfully parsed a group of options.
 Parsing a group of options: input file sample.mkv.
 Applying option stream_loop (set number of times input stream shall be
 looped) with argument 1.
 Successfully parsed a group of options.
 Opening an input file: sample.mkv.
 [file @ 02fe82a0] Setting default whitelist 'file,crypto'
 Probing matroska,webm score:100 size:2048
 Probing mp3 score:1 size:2048
 [matroska,webm @ 02fe7bc0] Format matroska,webm probed with size=2048 and
 score=100
 st:0 removing common factor 1000000 from timebase
 st:1 removing common factor 1000000 from timebase
 [matroska,webm @ 02fe7bc0] Before avformat_find_stream_info() pos: 912
 bytes read:32768 seeks:0 nb_streams:2
 [h264 @ 05020440] nal_unit_type: 7, nal_ref_idc: 3
 [h264 @ 05020440] nal_unit_type: 8, nal_ref_idc: 3
 [h264 @ 05020440] nal_unit_type: 7, nal_ref_idc: 3
 [h264 @ 05020440] nal_unit_type: 8, nal_ref_idc: 3
 [h264 @ 05020440] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [h264 @ 05020440] nal_unit_type: 6, nal_ref_idc: 0
 [h264 @ 05020440] nal_unit_type: 5, nal_ref_idc: 3
 [h264 @ 05020440] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [h264 @ 05020440] Reinit context to 320x240, pix_fmt: yuv420p
 [h264 @ 05020440] no picture
 [matroska,webm @ 02fe7bc0] All info found
 [matroska,webm @ 02fe7bc0] stream 0: start_time: 0.000 duration:
 -9223372036854776.000
 [matroska,webm @ 02fe7bc0] stream 1: start_time: 0.000 duration:
 -9223372036854776.000
 [matroska,webm @ 02fe7bc0] format: start_time: 0.000 duration: 1.023
 bitrate=293 kb/s
 [matroska,webm @ 02fe7bc0] After avformat_find_stream_info() pos: 10935
 bytes read:32768 seeks:0 frames:7
 Input #0, matroska,webm, from 'sample.mkv':
   Metadata:
     ENCODER         : Lavf57.41.100
   Duration: 00:00:01.02, start: 0.000000, bitrate: 293 kb/s
     Stream #0:0, 4, 1/1000: Video: h264 (High), 1 reference frame,
 yuv420p(left), 320x240 [SAR 1:1 DAR 4:3], 0/1, 25 fps, 25 tbr, 1k tbn, 50
 tbc (default)
     Metadata:
       ENCODER         : Lavc57.50.100 libx264
       DURATION        : 00:00:01.021000000
     Stream #0:1, 3, 1/1000: Audio: aac (LC), 48000 Hz, stereo, fltp
 (default)
     Metadata:
       ENCODER         : Lavc57.50.100 aac
       DURATION        : 00:00:01.023000000
 Successfully opened the file.
 Parsing a group of options: output file sample-c-copy.mp4.
 Applying option c (codec name) with argument copy.
 Successfully parsed a group of options.
 Opening an output file: sample-c-copy.mp4.
 [file @ 050e4f60] Setting default whitelist 'file,crypto'
 Successfully opened the file.
 [mp4 @ 0500f8e0] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, mp4, to 'sample-c-copy.mp4':
   Metadata:
     encoder         : Lavf57.41.100
     Stream #0:0, 0, 1/16000: Video: h264, 1 reference frame ([33][0][0][0]
 / 0x0021), yuv420p(left), 320x240 (0x0) [SAR 1:1 DAR 4:3], 0/1, q=2-31, 25
 fps, 25 tbr, 16k tbn, 1k tbc (default)
     Metadata:
       ENCODER         : Lavc57.50.100 libx264
       DURATION        : 00:00:01.021000000
     Stream #0:1, 0, 1/48000: Audio: aac (LC) ([64][0][0][0] / 0x0040),
 48000 Hz, stereo (default)
     Metadata:
       ENCODER         : Lavc57.50.100 aac
       DURATION        : 00:00:01.023000000
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 3 times
 [NULL @ 05020440] nal_unit_type: 7, nal_ref_idc: 3
 [NULL @ 05020440] nal_unit_type: 8, nal_ref_idc: 3
 [NULL @ 05020440] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [mp4 @ 0500f8e0] Delay between the first packet and last packet in the
 muxing queue is 24999833 > 10000000: forcing output
 [mp4 @ 0500f8e0] Delay between the first packet and last packet in the
 muxing queue is 24978500 > 10000000: forcing output
 No more output streams to write to, finishing.
 frame=   50 fps=0.0 q=-1.0 Lsize=      74kB time=00:00:27.00 bitrate=
 22.3kbits/s speed=1.38e+003x
 video:70kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 4.264328%
 Input file #0 (sample.mkv):
   Input stream #0:0 (video): 50 packets read (71664 bytes);
   Input stream #0:1 (audio): 96 packets read (610 bytes);
   Total: 146 packets (72274 bytes) demuxed
 Output file #0 (sample-c-copy.mp4):
   Output stream #0:0 (video): 50 packets muxed (71664 bytes);
   Output stream #0:1 (audio): 96 packets muxed (610 bytes);
   Total: 146 packets (72274 bytes) muxed
 0 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 0506f1c0] Statistics: 60 seeks, 191 writeouts
 [AVIOContext @ 02fecda0] Statistics: 110840 bytes read, 2 seeks

 Wrong output duration time.
 L:\>ffmpeg.exe -v 9 -loglevel 99 -stream_loop 1 -i sample.mkv -c copy
 sample-c-copy.mp4 -y
 ffmpeg version N-80999-gf41e37b Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.4.0 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-
 bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-
 gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b
 --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm
 --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-
 libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-librtmp --enable-libschroedinger --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis
 --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
 --enable-lzma --enable-decklink --enable-zlib
   libavutil      55. 28.100 / 55. 28.100
   libavcodec     57. 50.100 / 57. 50.100
   libavformat    57. 41.100 / 57. 41.100
   libavdevice    57.  0.102 / 57.  0.102
   libavfilter     6. 47.100 /  6. 47.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-stream_loop' ... matched as option 'stream_loop' (set
 number of times input stream shall be looped) with argument '1'.
 Reading option '-i' ... matched as input file with argument 'sample.mkv'.
 Reading option '-c' ... matched as option 'c' (codec name) with argument
 'copy'.
 Reading option 'sample-c-copy.mp4' ... matched as output file.
 Reading option '-y' ... matched as option 'y' (overwrite output files)
 with argument '1'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Applying option y (overwrite output files) with argument 1.
 Successfully parsed a group of options.
 Parsing a group of options: input file sample.mkv.
 Applying option stream_loop (set number of times input stream shall be
 looped) with argument 1.
 Successfully parsed a group of options.
 Opening an input file: sample.mkv.
 [file @ 02fe82a0] Setting default whitelist 'file,crypto'
 Probing matroska,webm score:100 size:2048
 Probing mp3 score:1 size:2048
 [matroska,webm @ 02fe7bc0] Format matroska,webm probed with size=2048 and
 score=100
 st:0 removing common factor 1000000 from timebase
 st:1 removing common factor 1000000 from timebase
 [matroska,webm @ 02fe7bc0] Before avformat_find_stream_info() pos: 912
 bytes read:32768 seeks:0 nb_streams:2
 [h264 @ 05020440] nal_unit_type: 7, nal_ref_idc: 3
 [h264 @ 05020440] nal_unit_type: 8, nal_ref_idc: 3
 [h264 @ 05020440] nal_unit_type: 7, nal_ref_idc: 3
 [h264 @ 05020440] nal_unit_type: 8, nal_ref_idc: 3
 [h264 @ 05020440] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [h264 @ 05020440] nal_unit_type: 6, nal_ref_idc: 0
 [h264 @ 05020440] nal_unit_type: 5, nal_ref_idc: 3
 [h264 @ 05020440] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [h264 @ 05020440] Reinit context to 320x240, pix_fmt: yuv420p
 [h264 @ 05020440] no picture
 [matroska,webm @ 02fe7bc0] All info found
 [matroska,webm @ 02fe7bc0] stream 0: start_time: 0.000 duration:
 -9223372036854776.000
 [matroska,webm @ 02fe7bc0] stream 1: start_time: 0.000 duration:
 -9223372036854776.000
 [matroska,webm @ 02fe7bc0] format: start_time: 0.000 duration: 1.023
 bitrate=293 kb/s
 [matroska,webm @ 02fe7bc0] After avformat_find_stream_info() pos: 10935
 bytes read:32768 seeks:0 frames:7
 Input #0, matroska,webm, from 'sample.mkv':
   Metadata:
     ENCODER         : Lavf57.41.100
   Duration: 00:00:01.02, start: 0.000000, bitrate: 293 kb/s
     Stream #0:0, 4, 1/1000: Video: h264 (High), 1 reference frame,
 yuv420p(left), 320x240 [SAR 1:1 DAR 4:3], 0/1, 25 fps, 25 tbr, 1k tbn, 50
 tbc (default)
     Metadata:
       ENCODER         : Lavc57.50.100 libx264
       DURATION        : 00:00:01.021000000
     Stream #0:1, 3, 1/1000: Audio: aac (LC), 48000 Hz, stereo, fltp
 (default)
     Metadata:
       ENCODER         : Lavc57.50.100 aac
       DURATION        : 00:00:01.023000000
 Successfully opened the file.
 Parsing a group of options: output file sample-c-copy.mp4.
 Applying option c (codec name) with argument copy.
 Successfully parsed a group of options.
 Opening an output file: sample-c-copy.mp4.
 [file @ 050e4f60] Setting default whitelist 'file,crypto'
 Successfully opened the file.
 [mp4 @ 0500f8e0] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, mp4, to 'sample-c-copy.mp4':
   Metadata:
     encoder         : Lavf57.41.100
     Stream #0:0, 0, 1/16000: Video: h264, 1 reference frame ([33][0][0][0]
 / 0x0021), yuv420p(left), 320x240 (0x0) [SAR 1:1 DAR 4:3], 0/1, q=2-31, 25
 fps, 25 tbr, 16k tbn, 1k tbc (default)
     Metadata:
       ENCODER         : Lavc57.50.100 libx264
       DURATION        : 00:00:01.021000000
     Stream #0:1, 0, 1/48000: Audio: aac (LC) ([64][0][0][0] / 0x0040),
 48000 Hz, stereo (default)
     Metadata:
       ENCODER         : Lavc57.50.100 aac
       DURATION        : 00:00:01.023000000
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 3 times
 [NULL @ 05020440] nal_unit_type: 7, nal_ref_idc: 3
 [NULL @ 05020440] nal_unit_type: 8, nal_ref_idc: 3
 [NULL @ 05020440] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [mp4 @ 0500f8e0] Delay between the first packet and last packet in the
 muxing queue is 24999833 > 10000000: forcing output
 [mp4 @ 0500f8e0] Delay between the first packet and last packet in the
 muxing queue is 24978500 > 10000000: forcing output
 No more output streams to write to, finishing.
 frame=   50 fps=0.0 q=-1.0 Lsize=      74kB time=00:00:27.00 bitrate=
 22.3kbits/s speed=1.38e+003x
 video:70kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 4.264328%
 Input file #0 (sample.mkv):
   Input stream #0:0 (video): 50 packets read (71664 bytes);
   Input stream #0:1 (audio): 96 packets read (610 bytes);
   Total: 146 packets (72274 bytes) demuxed
 Output file #0 (sample-c-copy.mp4):
   Output stream #0:0 (video): 50 packets muxed (71664 bytes);
   Output stream #0:1 (audio): 96 packets muxed (610 bytes);
   Total: 146 packets (72274 bytes) muxed
 0 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 0506f1c0] Statistics: 60 seeks, 191 writeouts
 [AVIOContext @ 02fecda0] Statistics: 110840 bytes read, 2 seeks


 Wrong output duration time.
 L:\>ffmpeg.exe -v 9 -loglevel 99 -stream_loop 1 -i sample.mkv -acodec copy
 -vn sample-a-copy-vn.mp4 -y
 ffmpeg version N-80999-gf41e37b Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.4.0 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-
 bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-
 gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b
 --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm
 --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-
 libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-librtmp --enable-libschroedinger --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis
 --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
 --enable-lzma --enable-decklink --enable-zlib
   libavutil      55. 28.100 / 55. 28.100
   libavcodec     57. 50.100 / 57. 50.100
   libavformat    57. 41.100 / 57. 41.100
   libavdevice    57.  0.102 / 57.  0.102
   libavfilter     6. 47.100 /  6. 47.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-stream_loop' ... matched as option 'stream_loop' (set
 number of times input stream shall be looped) with argument '1'.
 Reading option '-i' ... matched as input file with argument 'sample.mkv'.
 Reading option '-acodec' ... matched as option 'acodec' (force audio codec
 ('copy' to copy stream)) with argument 'copy'.
 Reading option '-vn' ... matched as option 'vn' (disable video) with
 argument '1'.
 Reading option 'sample-a-copy-vn.mp4' ... matched as output file.
 Reading option '-y' ... matched as option 'y' (overwrite output files)
 with argument '1'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Applying option y (overwrite output files) with argument 1.
 Successfully parsed a group of options.
 Parsing a group of options: input file sample.mkv.
 Applying option stream_loop (set number of times input stream shall be
 looped) with argument 1.
 Successfully parsed a group of options.
 Opening an input file: sample.mkv.
 [file @ 03438300] Setting default whitelist 'file,crypto'
 Probing matroska,webm score:100 size:2048
 Probing mp3 score:1 size:2048
 [matroska,webm @ 03437c20] Format matroska,webm probed with size=2048 and
 score=100
 st:0 removing common factor 1000000 from timebase
 st:1 removing common factor 1000000 from timebase
 [matroska,webm @ 03437c20] Before avformat_find_stream_info() pos: 912
 bytes read:32768 seeks:0 nb_streams:2
 [h264 @ 02e504e0] nal_unit_type: 7, nal_ref_idc: 3
 [h264 @ 02e504e0] nal_unit_type: 8, nal_ref_idc: 3
 [h264 @ 02e504e0] nal_unit_type: 7, nal_ref_idc: 3
 [h264 @ 02e504e0] nal_unit_type: 8, nal_ref_idc: 3
 [h264 @ 02e504e0] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [h264 @ 02e504e0] nal_unit_type: 6, nal_ref_idc: 0
 [h264 @ 02e504e0] nal_unit_type: 5, nal_ref_idc: 3
 [h264 @ 02e504e0] user data:"x264 - core 148 r2705 3f5ed56 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/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 me_range=16 chroma_me=1 trellis=1
 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
 lookahead_threads=1 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 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00"
 [h264 @ 02e504e0] Reinit context to 320x240, pix_fmt: yuv420p
 [h264 @ 02e504e0] no picture
 [matroska,webm @ 03437c20] All info found
 [matroska,webm @ 03437c20] stream 0: start_time: 0.000 duration:
 -9223372036854776.000
 [matroska,webm @ 03437c20] stream 1: start_time: 0.000 duration:
 -9223372036854776.000
 [matroska,webm @ 03437c20] format: start_time: 0.000 duration: 1.023
 bitrate=293 kb/s
 [matroska,webm @ 03437c20] After avformat_find_stream_info() pos: 10935
 bytes read:32768 seeks:0 frames:7
 Input #0, matroska,webm, from 'sample.mkv':
   Metadata:
     ENCODER         : Lavf57.41.100
   Duration: 00:00:01.02, start: 0.000000, bitrate: 293 kb/s
     Stream #0:0, 4, 1/1000: Video: h264 (High), 1 reference frame,
 yuv420p(left), 320x240 [SAR 1:1 DAR 4:3], 0/1, 25 fps, 25 tbr, 1k tbn, 50
 tbc (default)
     Metadata:
       ENCODER         : Lavc57.50.100 libx264
       DURATION        : 00:00:01.021000000
     Stream #0:1, 3, 1/1000: Audio: aac (LC), 48000 Hz, stereo, fltp
 (default)
     Metadata:
       ENCODER         : Lavc57.50.100 aac
       DURATION        : 00:00:01.023000000
 Successfully opened the file.
 Parsing a group of options: output file sample-a-copy-vn.mp4.
 Applying option acodec (force audio codec ('copy' to copy stream)) with
 argument copy.
 Applying option vn (disable video) with argument 1.
 Successfully parsed a group of options.
 Opening an output file: sample-a-copy-vn.mp4.
 [file @ 02e50ec0] Setting default whitelist 'file,crypto'
 Successfully opened the file.
 [mp4 @ 02e3fde0] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
 Output #0, mp4, to 'sample-a-copy-vn.mp4':
   Metadata:
     encoder         : Lavf57.41.100
     Stream #0:0, 0, 1/48000: Audio: aac (LC) ([64][0][0][0] / 0x0040),
 48000 Hz, stereo (default)
     Metadata:
       ENCODER         : Lavc57.50.100 aac
       DURATION        : 00:00:01.023000000
 Stream mapping:
   Stream #0:1 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 cur_dts is invalid (this is harmless if it occurs once at the start per
 stream)
     Last message repeated 2 times
 No more output streams to write to, finishing.
 size=       2kB time=00:00:26.02 bitrate=   0.6kbits/s speed=4e+003x
 video:0kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 194.262299%
 Input file #0 (sample.mkv):
   Input stream #0:0 (video): 4 packets read (9931 bytes);
   Input stream #0:1 (audio): 96 packets read (610 bytes);
   Total: 100 packets (10541 bytes) demuxed
 Output file #0 (sample-a-copy-vn.mp4):
   Output stream #0:0 (audio): 96 packets muxed (610 bytes);
   Total: 96 packets (610 bytes) muxed
 0 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 02e40500] Statistics: 30 seeks, 119 writeouts
 [AVIOContext @ 0343ce20] Statistics: 74196 bytes read, 1 seeks


 ffmpeg version f41e37b (2016-07-14)
 built on ... Zeranoe
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5719>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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