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• How to convert .ts with missing parts to .mp4?

  9 October 2019, by Dmitriy

  Upload m3u8 stream to ts file.
  Stream options:

  #EXT-X-STREAM-INF:BANDWIDTH=4325183,RESOLUTION=1920x1080,CODECS="avc1.4d4028,mp4a.40.2"

  The stream consists of chunks (example):

  #EXTM3U
  
  #EXT-X-VERSION:3
  
  #EXT-X-TARGETDURATION:2
  
  #EXT-X-MEDIA-SEQUENCE:141
  
  #EXTINF:2,
  
  l_476743_286000_141.ts
  
  #EXTINF:2,
  
  l_476743_288000_142.ts
  
  #EXTINF:2,
  
  l_476743_290000_143.ts

  When loading, sometimes errors occur and some parts are not written to the file. At the output, I get a file with something like this:

  Input #0, mpegts, from 'file.ts':
  
    Duration: 00:10:04.03, start: 460.000000, bitrate: 3944 kb/s
  
    Program 1
  
      Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080, 30 fps, 30 tbr, 90k tbn, 60 tbc
  
      Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 134 kb/s

  I need to convert ts to mp4. If I run FFmpeg like this:

  ffmpeg -i file.ts -c copy file.mp4

  Output file with low fps:

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'file.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.20.100
  
    Duration: 00:09:40.09, start: 0.000000, bitrate: 3984 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 3851 kb/s, 28.81 fps, 30 tbr, 90k tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 123 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler

  The output file is invalid, at the moment of skipping a freeze frame appears, and the audio goes on. As a result, the audio ends faster than the video. How to convert ts with missing parts to mp4?

  UPDATE

  $ ffmpeg -v error -i file.ts -f null -
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 60 >= 60
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 120 >= 120
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 180 >= 180
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 240 >= 240
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 300 >= 300
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 360 >= 360
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 420 >= 420
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 480 >= 480
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 540 >= 540
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 600 >= 600
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 660 >= 660
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 720 >= 720
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 780 >= 780
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 840 >= 840
  
  [null @ 0x7fe9ae802c00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 900 >= 900
  
  ...

• avcodec/diracdec: Count truncated parts as errors in decode_component()

  8 March 2019, by Michael Niedermayer

  avcodec/diracdec: Count truncated parts as errors in decode_component()
  Fixes: Timeout (29sec -> 4sec)
  
  Fixes: 13150/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5690185671507968
  Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
  
  Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/diracdec.c

• FFmpeg remove 2 sec from middle of video and concat the parts. Single line solution

  15 January 2019, by Aaron Broderick

  I have a video file that is 22 seconds long.
  I want to remove the segment from 10 seconds to 12 seconds.
  Then return a concatenated video file of seconds 1-10 and 12-22.

  I want to do this in a single FFmpeg command.

  This is the easy way

  Source
  https://www.labnol.org/internet/useful-ffmpeg-commands/28490/

  ffmpeg -i input.mp4 -ss 00:00:00.0 -codec copy -t 10 output_1.mp4

  and

  ffmpeg -i input.mp4 -ss 00:00:12.0 -codec copy -t 10 output_2.mp4

  then create an input file with all the source file names and run

  ffmpeg -f concat -i file-list.txt -c copy output.mp4

  But I’m looking for a one line solution

  Any help would be appreciated.