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• Encoding for HLS using FFMPEG results in have a decreasing DTS

  29 décembre 2014, par Luuk D. Jansen

  I am trying to encode video for HTS live streaming, but am having problems with validating the stream using Apple Media Validator (mediastreamvalidator).
  (my test file : http://dominicansinteractive.idoms.org/media/9536/playlist.m3u8)

  The output is :

  --------------------------------------------------------------------------------
  
  http://dominicansinteractive.idoms.org/media/9536/199/prog_index.m3u8
  
  --------------------------------------------------------------------------------
  
  
  
  Playlist Validation: 
  
  
  
      OK
  
  
  
  Segments:
  
  
  
  segment_00000.ts:
  
  
  
      ERROR: (-1) Decreasing DTS were detected in track 0
  
      ERROR: (-1) Decreasing DTS were detected in track 1
  
  
  
      Average segment duration: 8.07 seconds
  
      Average segment bitrate: 2155094.67 bps
  
      Average segment structural overhead: 206525.83 bps (9.58 %)

  ---

  The second segment doesn’t seem to have the problem :

  [mpegts @ 0x1d78120] Format mpegts probed with size=2048 and score=100
  
  [mpegts @ 0x1d78120] stream=0 stream_type=1b pid=100 prog_reg_desc=
  
  [mpegts @ 0x1d78120] stream=1 stream_type=f pid=101 prog_reg_desc=
  
  [mpegts @ 0x1d78120] File position before avformat_find_stream_info() is 0
  
  [h264 @ 0x1d7c1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x1d7c1c0] no picture 
  
  [h264 @ 0x1d7c1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
     Last message repeated 3 times
  
  [mpegts @ 0x1d78120] max_analyze_duration 5000000 reached at 5013333
  
  [mpegts @ 0x1d78120] File position after avformat_find_stream_info() is 0

  ---

  This seems to be a serious problem for HLS, so I am looking if there is a way to fix this.

  When looking with FFMPEG at the encoded file I get (encoder output/command at the bottom of the email) :

  ffmpeg -loglevel 99 -i encoded.ts 
  
  ffmpeg version N-37783-gdf3a96c Copyright (c) 2000-2012 the FFmpeg developers
  
   built on Jul  4 2012 07:44:52 with gcc 4.4.5
  
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libvpx --enable-libfaac --enable-nonfree
  
   libavutil      51. 63.100 / 51. 63.100
  
   libavcodec     54. 32.100 / 54. 32.100
  
   libavformat    54. 14.100 / 54. 14.100
  
   libavdevice    54.  0.100 / 54.  0.100
  
   libavfilter     3.  0.101 /  3.  0.101
  
   libswscale      2.  1.100 /  2.  1.100
  
   libswresample   0. 15.100 /  0. 15.100
  
   libpostproc    52.  0.100 / 52.  0.100
  
  [mpegts @ 0x2023120] Format mpegts probed with size=2048 and score=100
  
  [mpegts @ 0x2023120] stream=0 stream_type=1b pid=100 prog_reg_desc=
  
  [mpegts @ 0x2023120] stream=1 stream_type=f pid=101 prog_reg_desc=
  
  [mpegts @ 0x2023120] File position before avformat_find_stream_info() is 0
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x20271c0] no picture 
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 143280 in que
  
     Last message repeated 6 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 158640 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 175920 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 193200 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 210480 in que
  
     Last message repeated 7 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 227760 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 245040 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 262320 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 279600 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 296880 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 314160 in que
  
     Last message repeated 7 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 331440 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 348720 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 366000 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 383280 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 400560 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 417840 in que
  
     Last message repeated 6 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 433200 in que
  
     Last message repeated 6 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 448560 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 465840 in que
  
     Last message repeated 6 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 481200 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 498480 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 515760 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 533040 in que
  
     Last message repeated 6 times
  
  [h264 @ 0x20271c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [mpegts @ 0x2023120] first_dts 124080 not matching first dts 548400 in que
  
     Last message repeated 7 times
  
  [mpegts @ 0x2023120] max_analyze_duration 5000000 reached at 5000000
  
  [mpegts @ 0x2023120] File position after avformat_find_stream_info() is 0
  
  
  
  And when at the first segmented file:
  
  ffmpeg -loglevel 99 -i segment_00000.ts 
  
  ffmpeg version N-37783-gdf3a96c Copyright (c) 2000-2012 the FFmpeg developers
  
   built on Jul  4 2012 07:44:52 with gcc 4.4.5
  
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libvpx --enable-libfaac --enable-nonfree
  
   libavutil      51. 63.100 / 51. 63.100
  
   libavcodec     54. 32.100 / 54. 32.100
  
   libavformat    54. 14.100 / 54. 14.100
  
   libavdevice    54.  0.100 / 54.  0.100
  
   libavfilter     3.  0.101 /  3.  0.101
  
   libswscale      2.  1.100 /  2.  1.100
  
   libswresample   0. 15.100 /  0. 15.100
  
   libpostproc    52.  0.100 / 52.  0.100
  
  [mpegts @ 0x1a0b120] Format mpegts probed with size=2048 and score=100
  
  [mpegts @ 0x1a0b120] stream=0 stream_type=1b pid=100 prog_reg_desc=
  
  [mpegts @ 0x1a0b120] stream=1 stream_type=f pid=101 prog_reg_desc=
  
  [mpegts @ 0x1a0b120] File position before avformat_find_stream_info() is 0
  
  [mpegts @ 0x1a0b120] Invalid timestamps stream=0, pts=1920, dts=8589929312, size=2355
  
  [mpegts @ 0x1a0b120] Invalid timestamps stream=0, pts=16320, dts=8589932912, size=3203
  
  [h264 @ 0x1a0f1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
  [h264 @ 0x1a0f1c0] no picture 
  
  [h264 @ 0x1a0f1c0] Current profile doesn't provide more RBSP data in PPS, skipping
  
     Last message repeated 3 times
  
  [mpegts @ 0x1a0b120] max_analyze_duration 5000000 reached at 5013333
  
  [mpegts @ 0x1a0b120] File position after avformat_find_stream_info() is 0

  This problem does not occur with the BASELINE profile, but does with MAIN.

  The command I use for encoding is :

  ffmpeg, -i, [path]/test.mov, -y, -f, mpegts, -acodec, aac, -strict, -2, -ar, 48000, -b:a, 128000, -s, 960x540, -vcodec, libx264, -b:v, 1200000, -aspect, 960:540, -r, 25, -level, 3.1, -vprofile, main, -flags, +loop, -cmp, +chroma, -partitions, +parti4x4+partp8x8+partb8x8, -subq, 5, -trellis, 1, -refs, 1, -coder, 0, -me_range, 16, -keyint_min, 25, -sc_threshold, 40, -i_qfactor, 0.71, -bt, 200k, -maxrate, 1200000, -bufsize, 1200000, -rc_eq, 'blurCplx^(1-qComp)', -qcomp, 0.6, -qmin, 10, -qmax, 51, -qdiff, 4, -level, 30, -g, 30, -async, 2, [path]/encoded.ts
  
  
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavutil      51. 63.100 / 51. 63.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavcodec     54. 32.100 / 54. 32.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavformat    54. 14.100 / 54. 14.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavdevice    54.  0.100 / 54.  0.100
  
  08:40:29,843 DEBUG ~ FFMPEG(1):   libavfilter     3.  0.101 /  3.  0.101
  
  08:40:29,844 DEBUG ~ FFMPEG(1):   libswscale      2.  1.100 /  2.  1.100
  
  08:40:29,844 DEBUG ~ FFMPEG(1):   libswresample   0. 15.100 /  0. 15.100
  
  08:40:29,844 DEBUG ~ FFMPEG(1):   libpostproc    52.  0.100 / 52.  0.100
  
  08:40:30,033 DEBUG ~ FFMPEG(1): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '[path]/test.mov':
  
  08:40:30,033 DEBUG ~ FFMPEG(1):   Metadata:
  
  08:40:30,033 DEBUG ~ FFMPEG(1):     major_brand     : qt  
  
  08:40:30,033 DEBUG ~ FFMPEG(1):     minor_version   : 537199360
  
  08:40:30,035 DEBUG ~ FFMPEG(1):     compatible_brands: qt  
  
  08:40:30,035 DEBUG ~ FFMPEG(1):     creation_time   : 2011-12-05 10:54:24
  
  08:40:30,036 DEBUG ~ FFMPEG(1):     timecode        : 00:00:00:00
  
  08:40:30,036 DEBUG ~ FFMPEG(1):   Duration: 00:00:24.20, start: 0.000000, bitrate: 9912 kb/s
  
  08:40:30,037 DEBUG ~ FFMPEG(1):     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 9777 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
  
  08:40:30,037 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,037 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,037 DEBUG ~ FFMPEG(1):       handler_name    : Apple Video Media Handler
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 129 kb/s
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,038 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,038 DEBUG ~ FFMPEG(1):       handler_name    : Apple Sound Media Handler
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
  
  08:40:30,038 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,038 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,039 DEBUG ~ FFMPEG(1):       handler_name    : Time Code Media Handler
  
  08:40:30,039 DEBUG ~ FFMPEG(1):       timecode        : 00:00:00:00
  
  08:40:30,092 DEBUG ~ FFMPEG(1): [graph 0 input from stream 0:0 @ 0x1c17180] w:1920 h:1080 pixfmt:yuv420p tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
  
  08:40:30,092 DEBUG ~ FFMPEG(1): [output stream 0:0 @ 0x1c033a0] No opaque field provided
  
  08:40:30,110 DEBUG ~ FFMPEG(1): [scaler for output stream 0:0 @ 0x1c18040] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:960 h:540 fmt:yuv420p sar:0/1 flags:0x4
  
  08:40:30,110 DEBUG ~ FFMPEG(1): [graph 1 input from stream 0:1 @ 0x1c53440] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3
  
  08:40:30,110 DEBUG ~ FFMPEG(1): -async is forwarded to lavfi similarly to -af aresample=min_comp=0.001:min_hard_comp=0.100000:max_soft_comp=0.000042.
  
  08:40:30,122 DEBUG ~ FFMPEG(1): [graph 1 aresample for input stream 0:1 @ 0x1c36880] chl:stereo fmt:s16 r:48000Hz -> chl:stereo fmt:flt r:48000Hz
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] using SAR=1/1
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame MB size (60x34) > level limit (1620)
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] DPB size (4 frames, 3133440 bytes) > level limit (3 frames, 3110400 bytes)
  
  08:40:30,142 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] MB rate (51000) > level limit (40500)
  
  08:40:30,170 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] using cpu capabilities: MMX2 SSE2Slow SlowCTZ
  
  08:40:30,182 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] profile Main, level 3.0
  
  08:40:30,235 DEBUG ~ FFMPEG(1): [mpegts @ 0x1be3540] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
  
  08:40:30,235 DEBUG ~ FFMPEG(1): Output #0, mpegts, to '[path]/encoded.ts':
  
  08:40:30,235 DEBUG ~ FFMPEG(1):   Metadata:
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     major_brand     : qt  
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     minor_version   : 537199360
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     compatible_brands: qt  
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     timecode        : 00:00:00:00
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     encoder         : Lavf54.14.100
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     Stream #0:0(eng): Video: h264, yuv420p, 960x540 [SAR 1:1 DAR 16:9], q=10-51, 1200 kb/s, 90k tbn, 25 tbc
  
  08:40:30,235 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,235 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,235 DEBUG ~ FFMPEG(1):       handler_name    : Apple Video Media Handler
  
  08:40:30,236 DEBUG ~ FFMPEG(1):     Stream #0:1(eng): Audio: aac, 48000 Hz, stereo, flt, 128 kb/s
  
  08:40:30,236 DEBUG ~ FFMPEG(1):     Metadata:
  
  08:40:30,236 DEBUG ~ FFMPEG(1):       creation_time   : 2011-12-05 10:56:28
  
  08:40:30,236 DEBUG ~ FFMPEG(1):       handler_name    : Apple Sound Media Handler
  
  08:40:30,236 DEBUG ~ FFMPEG(1): Stream mapping:
  
  08:40:30,236 DEBUG ~ FFMPEG(1):   Stream #0:0 -> #0:0 (h264 -> libx264)
  
  08:40:30,236 DEBUG ~ FFMPEG(1):   Stream #0:1 -> #0:1 (aac -> aac)
  
  
  
  [...]
  
  
  
  08:40:55,398 DEBUG ~ FFMPEG(1): video:3121kB audio:359kB subtitle:0 global headers:0kB muxing overhead 11.132085%
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame I:21    Avg QP:21.57  size: 88153
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame P:233   Avg QP:22.74  size:  5560
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] frame B:351   Avg QP:27.45  size:   141
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] consecutive B-frames: 21.7%  2.0%  3.0% 73.4%
  
  08:40:55,407 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb I  I16..4: 54.5%  0.0% 45.5%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb P  I16..4:  4.7%  0.0%  1.3%  P16..4: 24.6%  3.5%  0.8%  0.0%  0.0%    skip:65.1%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] mb B  I16..4:  0.1%  0.0%  0.1%  B16..8:  0.5%  0.1%  0.0%  direct: 0.6%  skip:98.6%  L0:32.3% L1:47.1% BI:20.6%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] coded y,uvDC,uvAC intra: 59.4% 5.8% 0.4% inter: 5.4% 3.0% 0.0%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i16 v,h,dc,p: 58% 16% 21%  4%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 21% 17%  5% 10%  7%  5%  5% 10%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] i8c dc,h,v,p: 94%  3%  3%  0%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] Weighted P-Frames: Y:13.7% UV:3.4%
  
  08:40:55,422 DEBUG ~ FFMPEG(1): [libx264 @ 0x1be3cc0] kb/s:1056.61

  For segmenting is :

  ffmpeg, -i,[path]encoded.ts, -y, -c, copy, -flags, global_header, -map, 0, -f, segment, -segment_time, 10, -segment_list, [path]/fileList.txt, -segment_format, mpegts, [path]/segment_%05d.ts]

  Any help would really be appreciated !

• ffmpeg : Pipe input error

  1er septembre 2012, par Amit Khanna

  I'm facing an issue while working with ffmpeg when input and output are pipes. Though Output pipe is working fine, piping the input is causing some error.

  I tried to convert mp4 video to flv using the following command and it worked fine :

  $ ffmpeg  -i video-2012-04-26-19-48-40.mp4 -ar 44100 -ab 96 -f flv pipe:1 | cat> videoname.flv

  It worked fine and gave the following output :

  FFmpeg version 0.6-4:0.6-2ubuntu6.3, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Dec 21 2011 18:37:43 with gcc 4.4.5
  
    configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
  
    WARNING: library configuration mismatch
  
    libavutil   configuration: --extra-version=4:0.6-2ubuntu3.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavcodec  configuration: --extra-version=4:0.6-2ubuntu3.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavformat configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavdevice configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavfilter configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libswscale  configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libpostproc configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libavfilter    1.19. 0 /  1.19. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  
  
  Seems stream 0 codec frame rate differs from container frame rate: 60000.00 (60000/1) -> 1000.00 (1000/1)
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video-2012-04-26-19-48-40.mp4':
  
    Metadata:
  
      major_brand     : 3gp4
  
      minor_version   : 768
  
      compatible_brands: 3gp43gp6
  
    Duration: 00:00:09.55, start: 0.000000, bitrate: 3366 kb/s
  
      Stream #0.0(eng): Video: h264, yuv420p, 720x480, 3304 kb/s, 29.61 fps, 1k tbr, 30k tbn, 60k tbc
  
      Stream #0.1(eng): Audio: aac, 16000 Hz, mono, s16, 56 kb/s
  
  WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s
  
  Output #0, flv, to 'pipe:1':
  
    Metadata:
  
      encoder         : Lavf52.64.2
  
      Stream #0.0(eng): Video: flv, yuv420p, 720x480, q=2-31, 200 kb/s, 1k tbn, 1k tbc
  
      Stream #0.1(eng): Audio: adpcm_swf, 44100 Hz, mono, s16, 0 kb/s
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
  Press [q] to stop encoding
  
  frame=  283 fps=175 q=31.0 Lsize=     924kB time=9.52 bitrate= 794.7kbits/s    
  
  video:709kB audio:207kB global headers:0kB muxing overhead 0.867656%

  But when I read the input also from pipe, I get an error :

  Command :

  $cat video-2012-04-26-19-48-40.mp4| ffmpeg -i pipe: -ar 44100 -ab 96 -f flv pipe:1 | cat> videoname.flv

  Error output :

  FFmpeg version 0.6-4:0.6-2ubuntu6.3, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Dec 21 2011 18:37:43 with gcc 4.4.5
  
    configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
  
    WARNING: library configuration mismatch
  
    libavutil   configuration: --extra-version=4:0.6-2ubuntu3.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavcodec  configuration: --extra-version=4:0.6-2ubuntu3.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-libmp3lame --enable-gpl --enable-postproc --enable-x11grab --enable-libfaad --enable-libxvid --enable-libx264 --enable-librtmp --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavformat configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavdevice configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavfilter configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libswscale  configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libpostproc configuration: --extra-version=4:0.6-2ubuntu6.3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-vaapi --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libavfilter    1.19. 0 /  1.19. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8962bc0]stream 0, offset 0x28: partial file
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8962bc0]Could not find codec parameters (Video: h264, 3304 kb/s)
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8962bc0]Could not find codec parameters (Audio: aac, mono, s16, 56 kb/s)
  
  pipe:: could not find codec parameters

  Please help me fix the error.

• avconv stops streaming after some time

  4 juin 2014, par Dhrumil Doshi

  I am using raspberry-pi board and a usb camera attached with it. i use avconv tool to capture live video from camera and streaming it on network using rtp protocol.

  My command on server(raspberry-pi board) is as below :

  avconv -f video4linux2 -s 160x120 -i /dev/video0 -vcodec mpeg2video -r 25 -pix_fmt yuv420p -me_method epzs -b 2600k -bt 256k -f rtp rtp ://192.168.1.141:8554

  streaming works successfully using this command. Here IP address 192.168.1.141 is the ip address of my client pc. i can play live streaming on client side using vlc successfully.

  But Issue is after some time encoding and streaming on server stop automatically. And command hangs there.

  Output on server is as below :

  $ avconv -f video4linux2 -s 160x120 -v debug -i /dev/video0 -vcodec mpeg2video -r 25 -pix_fmt yuv420p -me_method epzs -b 2600k -bt 256k -f rtp rtp://192.168.1.141:8554
  
  avconv version 0.8.10-6:0.8.10-1+rpi1, Copyright (c) 2000-2013 the Libav developers
  
    built on Mar 22 2014 02:13:15 with gcc 4.6.3
  
    configuration: --arch=arm --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.10-1+rpi1' --libdir=/usr/lib/arm-linux-gnueabihf --prefix=/usr --disable-yasm --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/arm-linux-gnueabihf --enable-shared --disable-static
  
    libavutil    51. 22. 2 / 51. 22. 2
  
    libavcodec   53. 35. 0 / 53. 35. 0
  
    libavformat  53. 21. 1 / 53. 21. 1
  
    libavdevice  53.  2. 0 / 53.  2. 0
  
    libavfilter   2. 15. 0 /  2. 15. 0
  
    libswscale    2.  1. 0 /  2.  1. 0
  
    libpostproc  52.  0. 0 / 52.  0. 0
  
  [video4linux2 @ 0x54d7a0] [4]Capabilities: 84000001
  
  [video4linux2 @ 0x54d7a0] The V4L2 driver changed the pixel format from 0x32315559 to 0x56595559
  
      Last message repeated 1 times
  
  [video4linux2 @ 0x54d7a0] The V4L2 driver changed the pixel format from 0x50323234 to 0x56595559
  
  [video4linux2 @ 0x54d7a0] The V4L2 driver set input_id: 0, input: Camera 1
  
  [rawvideo @ 0x54f860] err{or,}_recognition separate: 1; 1
  
  [rawvideo @ 0x54f860] err{or,}_recognition combined: 1; 1
  
  [video4linux2 @ 0x54d7a0] All info found
  
  [video4linux2 @ 0x54d7a0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, video4linux2, from '/dev/video0':
  
    Duration: N/A, start: 21891.364784, bitrate: 9216 kb/s
  
      Stream #0.0, 1, 1/1000000: Video: rawvideo, yuyv422, 160x120, 1/30, 9216 kb/s, 30 tbr, 1000k tbn, 30 tbc
  
  [buffer @ 0x54f220] w:160 h:120 pixfmt:yuyv422
  
  [avsink @ 0x54d740] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x54f7e0] w:160 h:120 fmt:yuyv422 -> w:160 h:120 fmt:yuv420p flags:0x4
  
  [mpeg2video @ 0x54ea60] err{or,}_recognition separate: 1; 1
  
  [mpeg2video @ 0x54ea60] err{or,}_recognition combined: 1; 1
  
  [mpeg2video @ 0x54ea60] detected 1 logical cores
  
  [mpeg2video @ 0x54ea60] Unsupported bit depth: 0
  
  [rawvideo @ 0x54f860] err{or,}_recognition separate: 1; 1
  
  [rawvideo @ 0x54f860] err{or,}_recognition combined: 1; 1
  
  Output #0, rtp, to 'rtp://192.168.1.141:8554':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0, 0, 1/90000: Video: mpeg2video, yuv420p, 160x120, 1/25, q=2-31, 2600 kb/s, 90k tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo -> mpeg2video)
  
  SDP:
  
  v=0
  
  o=- 0 0 IN IP4 127.0.0.1
  
  s=No Name
  
  c=IN IP4 192.168.1.141
  
  t=0 0
  
  a=tool:libavformat 53.21.1
  
  m=video 8554 RTP/AVP 32
  
  b=AS:2600
  
  
  
  Press ctrl-c to stop encoding
  
  *** drop!
  
      Last message repeated 1 times
  
  *** 1 dup!
  
  *** 16 dup! fps= 25 q=2.0 size=    1027kB time=5.24 bitrate=1605.2kbits/s dup=1 drop=2    
  
  *** drop!
  
      Last message repeated 11 times
  
  *** drop!49 fps= 26 q=2.0 size=    1059kB time=5.92 bitrate=1464.9kbits/s dup=17 drop=14    
  
      Last message repeated 2 times
  
  *** drop!76 fps= 25 q=2.0 size=    2022kB time=11.00 bitrate=1505.7kbits/s dup=17 drop=17    
  
  *** drop!48 fps= 25 q=2.0 size=    4086kB time=21.88 bitrate=1529.8kbits/s dup=17 drop=18    
  
  *** 1 dup!
  
  *** 1 dup!0 fps= 25 q=2.0 size=    4171kB time=22.36 bitrate=1528.2kbits/s dup=18 drop=19    
  
  *** 1 dup!1 fps= 25 q=2.0 size=    4859kB time=26.00 bitrate=1530.8kbits/s dup=19 drop=19    
  
  *** 1 dup!0 fps= 25 q=2.0 size=    5152kB time=27.56 bitrate=1531.5kbits/s dup=20 drop=19    
  
  *** 1 dup!3 fps= 25 q=2.0 size=    5250kB time=28.08 bitrate=1531.7kbits/s dup=21 drop=19    
  
  *** drop!64 fps= 25 q=2.0 size=    7215kB time=38.52 bitrate=1534.5kbits/s dup=22 drop=19    
  
  *** 1 dup!6 fps= 25 q=2.0 size=    7306kB time=39.00 bitrate=1534.6kbits/s dup=22 drop=20    
  
  *** drop!07 fps= 25 q=2.0 size=    8288kB time=44.24 bitrate=1534.7kbits/s dup=23 drop=20    
  
  *** 1 dup!0 fps= 25 q=2.0 size=   10054kB time=53.56 bitrate=1537.8kbits/s dup=23 drop=21    
  
  *** 1 dup!9 fps= 25 q=2.0 size=   10342kB time=55.12 bitrate=1537.1kbits/s dup=24 drop=21    
  
      Last message repeated 1 times
  
  *** drop!93 fps= 25 q=1.6 size=   10445kB time=55.68 bitrate=1536.7kbits/s dup=26 drop=21    
  
  *** 1 dup!
  
  *** 7036829 dup! 25 q=2.0 size=   10630kB time=56.68 bitrate=1536.4kbits/s dup=27 drop=22 

  Any ideas ?

  Thanks in advance.