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• ffmpeg 1FPS extraction call spits out infinite images until disk is bricked on poorly-encoded movie

  12 juillet 2017, par John Allard

  This is one of the oddest things I’ve ever seen while using ffmpeg.

  This is the scenario - we are getting video footage from a IONODE ION-E100 encoder, the footage is encoded in h264. I can view the footage fine in VLC, and I can copy it over to another video using ffmpeg and -c:v copy. The issue arises when I try and extract one FPS from the movie using the following command :

  ffmpeg -i testmovie.mp4 -r 1 -vf 640:-2 -q:v 18 -loglevel error /tmp/tmp/extraction_%04d.jpeg

  What this should do is go through the movie and extract one frame per second, then dump the frames to the files /tmp/tmp/extraction_0001.jpeg, /tmp/tmp/extraction_0002.jpeg, ..., /tmp/tmp/extraction_000X.jpeg. It should end when it reaches the end of the video.

  Now the odd thing that happens when I run this command is that it will run in a tight loop, writing tens or hundreds of thousands of images to the disk until the disk is full at which point the command fails. All of the extracted images are the exact same as one another.

  Here is the ffmpeg stats output on the video

  ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
  
    libavutil      55. 34.100 / 55. 34.100
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.100 / 57. 56.100
  
    libavdevice    57.  1.100 / 57.  1.100
  
    libavfilter     6. 65.100 /  6. 65.100
  
    libavresample   3.  1.  0 /  3.  1.  0
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
    libpostproc    54.  1.100 / 54.  1.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/john/ionode/test2.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      title           : /videoinput_1:0/h264_1/media.stm
  
      encoder         : Lavf57.56.100
  
    Duration: 00:00:16.52, start: -9791.427750, bitrate: 2165 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 2119 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp, 236 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler

  (notice the start: -9791.427750 value, what is this ?)

  Here are the encoding details on the footage :

  {
  
      "programs": [
  
  
  
      ],
  
      "streams": [
  
          {
  
              "index": 0,
  
              "codec_name": "h264",
  
              "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
  
              "profile": "High",
  
              "codec_type": "video",
  
              "codec_time_base": "1/50",
  
              "codec_tag_string": "avc1",
  
              "codec_tag": "0x31637661",
  
              "width": 1920,
  
              "height": 1080,
  
              "coded_width": 1920,
  
              "coded_height": 1080,
  
              "has_b_frames": 2,
  
              "sample_aspect_ratio": "1:1",
  
              "display_aspect_ratio": "16:9",
  
              "pix_fmt": "yuv420p",
  
              "level": 40,
  
              "chroma_location": "left",
  
              "refs": 1,
  
              "is_avc": "true",
  
              "nal_length_size": "4",
  
              "r_frame_rate": "25/1",
  
              "avg_frame_rate": "25/1",
  
              "time_base": "1/12800",
  
              "start_pts": 0,
  
              "start_time": "0.000000",
  
              "duration_ts": 211456,
  
              "duration": "16.520000",
  
              "bit_rate": "2119813",
  
              "bits_per_raw_sample": "8",
  
              "nb_frames": "413",
  
              "disposition": {
  
                  "default": 1,
  
                  "dub": 0,
  
                  "original": 0,
  
                  "comment": 0,
  
                  "lyrics": 0,
  
                  "karaoke": 0,
  
                  "forced": 0,
  
                  "hearing_impaired": 0,
  
                  "visual_impaired": 0,
  
                  "clean_effects": 0,
  
                  "attached_pic": 0,
  
                  "timed_thumbnails": 0
  
              },
  
              "tags": {
  
                  "language": "und",
  
                  "handler_name": "VideoHandler"
  
              }
  
          }
  
      ]
  
  }

  Here a link to the sample video to use : http://s000.tinyupload.com/?file_id=03169189167771012515
  (it’s a 5MB video file)

  The only clues I have as to what is actually going on is the error output
  from the command that grabs the video from the encoder :

  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823640, current: -630275919; changing to -629823639. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823639, current: -630274895; changing to -629823638. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 21 q=28.0 size=      41kB time=00:00:02.60 bitrate= 128.8kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823638, current: -630273871; changing to -629823637. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823637, current: -630272847; changing to -629823636. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823636, current: -630271824; changing to -629823635. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823635, current: -630270800; changing to -629823634. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 19 q=28.0 size=      43kB time=00:00:02.60 bitrate= 137.0kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823634, current: -630269776; changing to -629823633. This may result in incorrect timestamps in the output file.
  
  [aac @ 0x7faa1a832000] Queue input is backward in time
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823633, current: -630268752; changing to -629823632. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823632, current: -630267728; changing to -629823631. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823631, current: -630513833; changing to -629823630. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 18 q=28.0 size=      46kB time=00:00:02.60 bitrate= 145.4kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823630, current: -630512810; changing to -629823629. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823629, current: -630511786; changing to -629823628. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823628, current: -630510762; changing to -629823627. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823627, current: -630509738; changing to -629823626. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 17 q=28.0 size=      49kB time=00:00:02.60 bitrate= 153.6kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823626, current: -630508714; changing to -629823625. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823625, current: -630507690; changing to -629823624. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823624, current: -630506667; changing to -629823623. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823623, current: -630505643; changing to -629823622. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823622, current: -630504619; changing to -629823621. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 16 q=28.0 size=      52kB time=00:00:02.60 bitrate= 163.5kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823621, current: -630503595; changing to -629823620. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823620, current: -630502571; changing to -629823619. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823619, current: -630501548; changing to -629823618. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823618, current: -630500524; changing to -629823617. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 15 q=28.0 size=      54kB time=00:00:02.60 bitrate= 171.4kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823617, current: -630499500; changing to -629823616. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823616, current: -630498476; changing to -629823615. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823615, current: -630497452; changing to -629823614. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823614, current: -630496428; changing to -629823613. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 14 q=28.0 size=      57kB time=00:00:02.60 bitrate= 179.3kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823613, current: -630495405; changing to -629823612. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823612, current: -630494381; changing to -629823611. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823611, current: -630493357; changing to -629823610. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 13 q=28.0 size=      59kB time=00:00:02.60 bitrate= 185.6kbits/s dup=26 drop=4 spee[aac @ 0x7faa1a832000] Queue input is backward in time
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823610, current: -630492333; changing to -629823609. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823609, current: -630491309; changing to -629823608. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823608, current: -630736398; changing to -629823607. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823607, current: -630735375; changing to -629823606. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 12 q=28.0 size=      61kB time=00:00:02.60 bitrate= 193.5kbits/s dup=26 drop=4 spee[mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823606, current: -630734351; changing to -629823605. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823605, current: -630733327; changing to -629823604. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823604, current: -630732303; changing to -629823603. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823603, current: -630731279; changing to -629823602. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7faa1a83ba00] Non-monotonous DTS in output stream 0:1; previous: -629823602, current: -630730256; changing to -629823601. This may result in incorrect timestamps in the output file.
  
  frame=  124 fps= 12 q=-1.0 Lsize=     507kB time=00:00:04.84 bitrate= 858.7kbits/s dup=26 drop=4 speed=0.453x

  So my question is, why does this video break ffmpeg ? Why does ffmpeg get caught up in a tight loop extracting images without ever making any progres towards the end of the video ?

• FFMPEG TimeCode synchronization

  14 juin 2017, par Spadieri

  I have a problem with the length of a TS video file.

  Use Hauppauge QuadTV HD video capture card,

  ffprobe TS file

  {
  
  
  
  [STREAM]
  
  index=0
  
  codec_name=mpeg2video
  
  codec_long_name=MPEG-2 video
  
  profile=Main
  
  codec_type=video
  
  codec_time_base=1/25
  
  codec_tag_string=[2][0][0][0]
  
  codec_tag=0x0002
  
  width=720
  
  height=576
  
  coded_width=0
  
  coded_height=0
  
  has_b_frames=1
  
  sample_aspect_ratio=64:45
  
  display_aspect_ratio=16:9
  
  pix_fmt=yuv420p
  
  level=8
  
  color_range=tv
  
  color_space=unknown
  
  color_transfer=unknown
  
  color_primaries=unknown
  
  chroma_location=left
  
  field_order=tt
  
  timecode=N/A
  
  refs=1
  
  id=0x201
  
  r_frame_rate=25/1
  
  avg_frame_rate=25/1
  
  time_base=1/90000
  
  start_pts=4090681690
  
  start_time=45452.018778
  
  duration_ts=323618400
  
  duration=3595.760000
  
  bit_rate=N/A
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  [/STREAM]
  
  [STREAM]
  
  index=1
  
  codec_name=mp2
  
  codec_long_name=MP2 (MPEG audio layer 2)
  
  profile=unknown
  
  codec_type=audio
  
  codec_time_base=1/48000
  
  codec_tag_string=[4][0][0][0]
  
  codec_tag=0x0004
  
  sample_fmt=s16p
  
  sample_rate=48000
  
  channels=2
  
  channel_layout=stereo
  
  bits_per_sample=0
  
  id=0x28b
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/90000
  
  start_pts=4090672903
  
  start_time=45451.921144
  
  duration_ts=323585280
  
  duration=3595.392000
  
  bit_rate=192000
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  TAG:language=ita
  
  [/STREAM]
  
  [STREAM]
  
  index=2
  
  codec_name=dvb_teletext
  
  codec_long_name=DVB teletext
  
  profile=unknown
  
  codec_type=subtitle
  
  codec_tag_string=[6][0][0][0]
  
  codec_tag=0x0006
  
  width=N/A
  
  height=N/A
  
  id=0x241
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/90000
  
  start_pts=4090655137
  
  start_time=45451.723744
  
  duration_ts=323611200
  
  duration=3595.680000
  
  bit_rate=N/A
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  TAG:language=ita
  
  [/STREAM]
  
  [STREAM]
  
  index=3
  
  codec_name=mp2
  
  codec_long_name=MP2 (MPEG audio layer 2)
  
  profile=unknown
  
  codec_type=audio
  
  codec_time_base=1/48000
  
  codec_tag_string=[4][0][0][0]
  
  codec_tag=0x0004
  
  sample_fmt=s16p
  
  sample_rate=48000
  
  channels=1
  
  channel_layout=mono
  
  bits_per_sample=0
  
  id=0x2b7
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/90000
  
  start_pts=4090668157
  
  start_time=45451.868411
  
  duration_ts=323589600
  
  duration=3595.440000
  
  bit_rate=64000
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  TAG:language=Oth
  
  [/STREAM]
  
  [STREAM]
  
  index=4
  
  codec_name=mp2
  
  codec_long_name=MP2 (MPEG audio layer 2)
  
  profile=unknown
  
  codec_type=audio
  
  codec_time_base=1/48000
  
  codec_tag_string=[4][0][0][0]
  
  codec_tag=0x0004
  
  sample_fmt=s16p
  
  sample_rate=48000
  
  channels=2
  
  channel_layout=stereo
  
  bits_per_sample=0
  
  id=0x2b8
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/90000
  
  start_pts=4090663971
  
  start_time=45451.821900
  
  duration_ts=323585280
  
  duration=3595.392000
  
  bit_rate=192000
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  TAG:language=eng
  
  [/STREAM]
  
  [STREAM]
  
  index=5
  
  codec_name=unknown
  
  codec_long_name=unknown
  
  profile=unknown
  
  codec_type=unknown
  
  codec_tag_string=[5][0][0][0]
  
  codec_tag=0x0005
  
  id=0x7d2
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/90000
  
  start_pts=4090655137
  
  start_time=45451.723744
  
  duration_ts=323644953
  
  duration=3596.055033
  
  bit_rate=N/A
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  [/STREAM]
  
  [STREAM]
  
  index=6
  
  codec_name=unknown
  
  codec_long_name=unknown
  
  profile=unknown
  
  codec_type=unknown
  
  codec_tag_string=[11][0][0][0]
  
  codec_tag=0x000b
  
  id=0xbb9
  
  r_frame_rate=0/0
  
  avg_frame_rate=0/0
  
  time_base=1/90000
  
  start_pts=4090655137
  
  start_time=45451.723744
  
  duration_ts=323644953
  
  duration=3596.055033
  
  bit_rate=N/A
  
  max_bit_rate=N/A
  
  bits_per_raw_sample=N/A
  
  nb_frames=N/A
  
  nb_read_frames=N/A
  
  nb_read_packets=N/A
  
  DISPOSITION:default=0
  
  DISPOSITION:dub=0
  
  DISPOSITION:original=0
  
  DISPOSITION:comment=0
  
  DISPOSITION:lyrics=0
  
  DISPOSITION:karaoke=0
  
  DISPOSITION:forced=0
  
  DISPOSITION:hearing_impaired=0
  
  DISPOSITION:visual_impaired=0
  
  DISPOSITION:clean_effects=0
  
  DISPOSITION:attached_pic=0
  
  DISPOSITION:timed_thumbnails=0
  
  [/STREAM]
  
  
  
  }

  steps :

  1°- demux con ProjectX
  output :
  video.m2v (25 fps)
  audio.mp2

  ffmprobe video.m2v
  
  {
  
  
  
  
  
  [STREAM]
  
      index=0
  
      codec_name=mpeg2video
  
      codec_long_name=MPEG-2 video
  
      profile=Main
  
      codec_type=video
  
      codec_time_base=1/25
  
      codec_tag_string=[0][0][0][0]
  
      codec_tag=0x0000
  
      width=720
  
      height=576
  
      coded_width=0
  
      coded_height=0
  
      has_b_frames=1
  
      sample_aspect_ratio=64:45
  
      display_aspect_ratio=16:9
  
      pix_fmt=yuv420p
  
      level=8
  
      color_range=tv
  
      color_space=unknown
  
      color_transfer=unknown
  
      color_primaries=unknown
  
      chroma_location=left
  
      field_order=progressive
  
      timecode=N/A
  
      refs=1
  
      id=0x1e0
  
      r_frame_rate=25/1
  
      avg_frame_rate=25/1
  
      time_base=1/90000
  
      start_pts=48600
  
      start_time=0.540000
  
      duration_ts=322970400
  
      duration=3588.560000
  
      bit_rate=N/A
  
      max_bit_rate=N/A
  
      bits_per_raw_sample=N/A
  
      nb_frames=N/A
  
      nb_read_frames=N/A
  
      nb_read_packets=N/A
  
      DISPOSITION:default=0
  
      DISPOSITION:dub=0
  
      DISPOSITION:original=0
  
      DISPOSITION:comment=0
  
      DISPOSITION:lyrics=0
  
      DISPOSITION:karaoke=0
  
      DISPOSITION:forced=0
  
      DISPOSITION:hearing_impaired=0
  
      DISPOSITION:visual_impaired=0
  
      DISPOSITION:clean_effects=0
  
      DISPOSITION:attached_pic=0
  
      DISPOSITION:timed_thumbnails=0
  
      [/STREAM]
  
  
  
  }

  2° - Burn TimeCode with ffmpeg

  CL : "ffmpeg -i video.m2v -c:v mpeg2video -vf "drawtext=fontfile=courier.ttf: timecode='00\:00\:00\:00': r=25: x=10: y=10: fontcolor=white: box=1: fontsize=50: boxcolor=0x00000099" output.mpeg"

  ffmpeg output:
  
  {
  
  
  
  
  
  ffmpeg version N-85604-g207e6de Copyright (c) 2000-2017 the FFmpeg developers
  
      built with gcc 6.3.0 (GCC)
  
      configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --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-zlib
  
      libavutil      55. 61.100 / 55. 61.100
  
      libavcodec     57. 93.100 / 57. 93.100
  
      libavformat    57. 72.101 / 57. 72.101
  
      libavdevice    57.  7.100 / 57.  7.100
  
      libavfilter     6. 86.100 /  6. 86.100
  
      libswscale      4.  7.101 /  4.  7.101
  
      libswresample   2.  8.100 /  2.  8.100
  
      libpostproc    54.  6.100 / 54.  6.100
  
      Input #0, mpegvideo, from 'R2_TG2_20170607_13001.m2v':
  
      Duration: N/A, bitrate: N/A
  
      Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 1200k tbn, 50 tbc
  
      Stream mapping:
  
      Stream #0:0 -> #0:0 (mpeg2video (native) -> mpeg2video (native))
  
      Press [q] to stop, [?] for help
  
      [mpeg @ 00000000025eb760] VBV buffer size not set, using default size of 130KB
  
      If you want the mpeg file to be compliant to some specification
  
      Like DVD, VCD or others, make sure you set the correct buffer size
  
      Output #0, mpeg, to 'output.mpeg':
  
      Metadata:
  
      encoder         : Lavf57.72.101
  
      Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 90k tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc57.93.100 mpeg2video
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
  
      [mpeg2video @ 0000000002625020] ac-tex damaged at 1 3027.24 bitrate= 879.1kbits/s speed=  39x
  
      [mpeg2video @ 0000000002625020] Warning MVs not available
  
      [mpeg2video @ 0000000002625020] concealing 45 DC, 45 AC, 45 MV errors in I frame
  
      [mpeg2video @ 0000000002625020] Warning MVs not available56 bitrate= 846.8kbits/s speed=39.1x
  
      [mpeg2video @ 0000000002625020] concealing 1 DC, 1 AC, 1 MV errors in B frame
  
      frame=89714 fps=974 q=31.0 Lsize=  332412kB time=00:59:48.52 bitrate= 758.8kbits/s speed=  39x
  
      video:329859kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.774119%
  
  
  
  }

  As seen from the screenshots there are 14 frames of difference, and later rise to 35

  Can frames be damaged and ffmpeg skip them ?

  The video for the first 13 minutes is perfectly synchronized

  OriginalFrame Time

  OutputFrame Time

  3° - remux [output.mmpeg] with original audio [audio.mp2]

  CL: "ffmpeg -i output.mpeg -i originalAudio.mp2 -c:a copy -c:v copy finalOutput.mpeg"
  
  
  
  ffmpeg output:
  
  {
  
  
  
  
  
  ffmpeg version N-85604-g207e6de Copyright (c) 2000-2017 the FFmpeg developers
  
      built with gcc 6.3.0 (GCC)
  
      configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --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-zlib
  
      libavutil      55. 61.100 / 55. 61.100
  
      libavcodec     57. 93.100 / 57. 93.100
  
      libavformat    57. 72.101 / 57. 72.101
  
      libavdevice    57.  7.100 / 57.  7.100
  
      libavfilter     6. 86.100 /  6. 86.100
  
      libswscale      4.  7.101 /  4.  7.101
  
      libswresample   2.  8.100 /  2.  8.100
  
      libpostproc    54.  6.100 / 54.  6.100
  
      Input #0, mpeg, from 'output.mpeg':
  
      Duration: 00:59:48.56, start: 0.540000, bitrate: 758 kb/s
  
      Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, progressive), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      [mp3 @ 0000000002894980] Estimating duration from bitrate, this may be inaccurate
  
      Input #1, mp3, from 'R2_TG2_20170607_13001.mp2':
  
      Duration: 00:59:48.55, start: 0.000000, bitrate: 192 kb/s
  
      Stream #1:0: Audio: mp2, 48000 Hz, stereo, s16p, 192 kb/s
  
      [mpeg @ 000000000289a880] VBV buffer size not set, using default size of 130KB
  
      If you want the mpeg file to be compliant to some specification
  
      Like DVD, VCD or others, make sure you set the correct buffer size
  
      Output #0, mpeg, to 'finalOutput.mpeg':
  
      Metadata:
  
      encoder         : Lavf57.72.101
  
      Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, progressive), 720x576 [SAR 64:45 DAR 16:9], q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc
  
      Stream #0:1: Audio: mp2, 48000 Hz, stereo, s16p, 192 kb/s
  
      Stream mapping:
  
      Stream #0:0 -> #0:0 (copy)
  
      Stream #1:0 -> #0:1 (copy)
  
      Press [q] to stop, [?] for help
  
      [mpeg @ 000000000289a880] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
  
      frame=89714 fps=26872 q=-1.0 Lsize=  417232kB time=00:59:48.52 bitrate= 952.5kbits/s speed=1.07e+003x
  
      video:329859kB audio:84107kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.789151%
  
  
  
  }

  FinalOutput.mpeg has the same frames as output.mpeg
  I have several TransportStreams to process and everyone has a frame difference

  someone can help me to solve the problem ?

  I need FinalOutput.mpeg to be aligned frame by frame with the original and necessarily the video must impress the timecode.

  a possible solution would also be a replace "damaged" frame but I can not find out how to replace the skipped frames

  EDIT :

  i’ve tried to work from OriginalVideo.ts and extracted video with -map directly with FFMPEG but the result is the same

  CL : ffmpeg -i OriginalVideo.ts -map 0:0 -c:v copy output.h264

      ffmpeg version N-85604-g207e6de Copyright (c) 2000-2017 the FFmpeg developers
  
  built with gcc 6.3.0 (GCC)
  
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --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-zlib
  
  libavutil      55. 61.100 / 55. 61.100
  
  libavcodec     57. 93.100 / 57. 93.100
  
  libavformat    57. 72.101 / 57. 72.101
  
  libavdevice    57.  7.100 / 57.  7.100
  
  libavfilter     6. 86.100 /  6. 86.100
  
  libswscale      4.  7.101 /  4.  7.101
  
  libswresample   2.  8.100 /  2.  8.100
  
  libpostproc    54.  6.100 / 54.  6.100
  
  [mpeg2video @ 0000000000dd4c20] Invalid frame dimensions 0x0.
  
  Last message repeated 5 times
  
  [mp2 @ 0000000000dd7e00] Header missing
  
  [mp2 @ 0000000000dd8f20] Header missing
  
  [mpeg2video @ 0000000000dd4c20] Invalid frame dimensions 0x0.
  
  [mp2 @ 0000000000dd5b60] Header missing
  
  [mpegts @ 0000000000dd25a0] PES packet size mismatch
  
  Last message repeated 1 times
  
  [mpegts @ 0000000000dd25a0] Could not find codec parameters for stream 5 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [mpegts @ 0000000000dd25a0] Could not find codec parameters for stream 6 (Unknown: none ([11][0][0][0] / 0x000B)): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #0, mpegts, from 'R2_TG2_20170607_13001.ts':
  
  Duration: 00:59:56.06, start: 45451.723744, bitrate: 5901 kb/s
  
  Program 3402
  
  Stream #0:0[0x201]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
  Stream #0:1[0x28b](ita): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 192 kb/s
  
  Stream #0:2[0x241](ita): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
  
  Stream #0:3[0x2b7](Oth): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, mono, s16p, 64 kb/s
  
  Stream #0:4[0x2b8](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 192 kb/s
  
  Stream #0:5[0x7d2]: Unknown: none ([5][0][0][0] / 0x0005)
  
  Stream #0:6[0xbb9]: Unknown: none ([11][0][0][0] / 0x000B)
  
  Output #0, h264, to 'output.h264':
  
  Metadata:
  
  encoder         : Lavf57.72.101
  
  Stream #0:0: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], q=2-31, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=89746 fps=6083 q=-1.0 Lsize= 2131869kB time=00:59:55.64 bitrate=4857.1kbits/s speed= 244x
  
  video:2131869kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%

  if i try to extract video in mpeg format FFMPEG retrive me following errors :

  ffmpeg version N-85604-g207e6de Copyright (c) 2000-2017 the FFmpeg developers
  
        built with gcc 6.3.0 (GCC)
  
        configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --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-zlib
  
        libavutil      55. 61.100 / 55. 61.100
  
        libavcodec     57. 93.100 / 57. 93.100
  
        libavformat    57. 72.101 / 57. 72.101
  
        libavdevice    57.  7.100 / 57.  7.100
  
        libavfilter     6. 86.100 /  6. 86.100
  
        libswscale      4.  7.101 /  4.  7.101
  
        libswresample   2.  8.100 /  2.  8.100
  
        libpostproc    54.  6.100 / 54.  6.100
  
      [mpeg2video @ 0000000002824c20] Invalid frame dimensions 0x0.
  
          Last message repeated 5 times
  
      [mp2 @ 0000000002827e00] Header missing
  
      [mp2 @ 0000000002828f20] Header missing
  
      [mpeg2video @ 0000000002824c20] Invalid frame dimensions 0x0.
  
      [mp2 @ 0000000002825b60] Header missing
  
      [mpegts @ 00000000028225a0] PES packet size mismatch
  
          Last message repeated 1 times
  
      [mpegts @ 00000000028225a0] Could not find codec parameters for stream 5 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec
  
      Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
      [mpegts @ 00000000028225a0] Could not find codec parameters for stream 6 (Unknown: none ([11][0][0][0] / 0x000B)): unknown codec
  
      Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
      Input #0, mpegts, from 'R2_TG2_20170607_13001.ts':
  
        Duration: 00:59:56.06, start: 45451.723744, bitrate: 5901 kb/s
  
        Program 3402
  
          Stream #0:0[0x201]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
          Stream #0:1[0x28b](ita): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 192 kb/s
  
          Stream #0:2[0x241](ita): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
  
          Stream #0:3[0x2b7](Oth): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, mono, s16p, 64 kb/s
  
          Stream #0:4[0x2b8](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 192 kb/s
  
          Stream #0:5[0x7d2]: Unknown: none ([5][0][0][0] / 0x0005)
  
          Stream #0:6[0xbb9]: Unknown: none ([11][0][0][0] / 0x000B)
  
      File 'output.mpeg' already exists. Overwrite ? [y/N] y
  
      [mpeg @ 000000000072bc80] VBV buffer size not set, using default size of 130KB
  
      If you want the mpeg file to be compliant to some specification
  
      Like DVD, VCD or others, make sure you set the correct buffer size
  
      Output #0, mpeg, to 'output.mpeg':
  
        Metadata:
  
          encoder         : Lavf57.72.101
  
          Stream #0:0: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc
  
      Stream mapping:
  
        Stream #0:0 -> #0:0 (copy)
  
      Press [q] to stop, [?] for help
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=1218 size=11754=4752.0kbits/s speed= 229x
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=3247 size=11754
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=5288 size=11754
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=7329 size=11754
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=9370 size=11754
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=11411 size=11754
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=1862 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=3891 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=5932 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=7973 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=10014 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=12055 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=14096 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=16137 size=17826
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=875 size=88109e=4684.9kbits/s speed= 239x
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=2904 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=4945 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=6986 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=9027 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=11068 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=13109 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=15150 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=17191 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=19232 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=21273 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=23314 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=25355 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=27396 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=29437 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=31478 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=33519 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=35560 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=37601 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=39642 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=41683 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=43724 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=45765 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=47806 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=49847 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=51888 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=53929 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=55970 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=58011 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=60052 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=62093 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=64134 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=66175 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=68216 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=70257 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=72298 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=74339 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=76380 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=78421 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=80462 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=82503 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=84544 size=88109
  
      [mpeg @ 000000000072bc80] buffer underflow st=0 bufi=86585 size=88109
  
      frame=89746 fps=5348 q=-1.0 Lsize= 2140734kB time=00:59:55.60 bitrate=4877.3kbits/s speed= 214x
  
      video:2131869kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.415814%

• android - how to play two audio file at same time

  29 janvier 2016, par Sajad Norouzi

  I wanna create an karaoke android app. so far, user can listen to the song and record his voice. now I want to let user some editing like setting volume of his voice or setting Reverb effect. I have some library like ffmpeg and sox on android and don’t have problem for mixing two audio, but for setting volume or Reverb wanna play two audio file simultaneously using mediaplayer, however it’s not possible because android doesn’t let us play two audio file with mediaplayer at same time even with two different object of mediaplayer. so, what is the solution ?