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• How to embed subtitles to .mp4 movie using ffmpeg

  25 novembre 2016, par hudac

  I’m trying to embed subtitles I wrote to a movie I created.
  I’m using FFmpeg version : ffmpeg-20150418-git-edbb9b5-win64-static with the command :
  ffmpeg -i in.mp4 -f srt -i subs.srt -c:v copy -c:a copy -c:s mov_text out.mp4 I saw here.

  But I get errors during the process, and when the process is done there’s an output file out.mp4 without subtitles embedded.
  When I play the in.mp4 in some player such as media player classic with the subtitles separately, the subtitles are sync and everything is fine.

  The subtitles are subrip encoded in UTF8.

  I tried to look out for these errors but didn’t find anything useful. it seems something ridiculous.
  What am I doing wrong ?

  Errors such as :

  [mp4 @ 00000000003fe020] Codec for stream 0 does not use global headers but container format requires global headers
  
  [mp4 @ 00000000003fe020] Codec for stream 1 does not use global headers but container format requires global headers
  
  [mp4 @ 00000000003fe020] Application provided duration: -8 / timestamp: 72205 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value

  Movie details from Media info :

  Video  
  
  ID: 1  
  
  Format: AVC  
  
  Format/Info: Advanced Video Codec  
  
  Format profile: Main@L4.2  
  
  Format settings, CABAC: Yes  
  
  Format settings, ReFrames: 3 frames  
  
  Format settings, GOP: M=4, N=24  
  
  Codec ID: avc1  
  
  Codec ID/Info: Advanced Video Coding  
  
  Duration: 8mn 32s  
  
  Source duration: 8mn 32s  
  
  Bit rate: 23.4 Mbps  
  
  Width: 1920 pixels  
  
  Height: 1080 pixels  
  
  Display aspect ratio: 16:9  
  
  Original display aspect ratio: 2.2:1  
  
  Frame rate mode: Variable  
  
  Frame rate: 23.976 fps  
  
  Minimum frame rate: 23.976 fps  
  
  Maximum frame rate: 24.000 fps  
  
  Standard: NTSC  
  
  Color space: YUV  
  
  Chroma subsampling: 4:2:0  
  
  Bit depth: 8 bits  
  
  Scan type: Progressive  
  
  Bits/(Pixel*Frame): 0.472  
  
  Stream size: 1.40 GiB (99%)  
  
  Source stream size: 1.40 GiB (99%)  
  
  Language: English  
  
  Encoded date: UTC 2015-04-28 20:31:41  
  
  Tagged date: UTC 2015-04-28 20:31:41  
  
  mdhd_Duration: 512137  

  Ffmpeg command output :

  ffmpeg version N-71497-gedbb9b5 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
  
  ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
  
  able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
  
   --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --ena
  
  ble-decklink --enable-zlib
  
    libavutil      54. 22.101 / 54. 22.101
  
    libavcodec     56. 34.100 / 56. 34.100
  
    libavformat    56. 30.100 / 56. 30.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 14.100 /  5. 14.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2015-04-28 20:31:41
  
    Duration: 00:08:32.17, start: 0.000000, bitrate: 23640 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 1920x1080 [SAR 40:33 DAR 640:297], 23444 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 t
  
  bc (default)
  
      Metadata:
  
        creation_time   : 2015-04-28 20:31:41
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-28 20:31:41
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  Input #1, srt, from 'subs.srt':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0: Subtitle: subrip
  
  [mp4 @ 00000000003fe020] Codec for stream 0 does not use global headers but container format requires global headers
  
  [mp4 @ 00000000003fe020] Codec for stream 1 does not use global headers but container format requires global headers
  
  Output #0, mp4, to 'out.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      encoder         : Lavf56.30.100
  
      Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 40:33 DAR 640:297], q=2-31, 23444 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 24k t
  
  bc (default)
  
      Metadata:
  
        creation_time   : 2015-04-28 20:31:41
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 189 kb/s (default)
  
      Metadata:
  
        creation_time   : 2015-04-28 20:31:41
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
      Stream #0:2: Subtitle: mov_text ([8][0][0][0] / 0x0008)
  
      Metadata:
  
        encoder         : Lavc56.34.100 mov_text
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
    Stream #1:0 -> #0:2 (subrip (srt) -> mov_text (native))
  
  Press [q] to stop, [?] for help
  
  [mp4 @ 00000000003fe020] Application provided duration: -8 / timestamp: 72205 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -7 / timestamp: 74217 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -8 / timestamp: 76267 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -4 / timestamp: 77872 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -7 / timestamp: 79260 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -1 / timestamp: 88987 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -60 / timestamp: 91489 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -4 / timestamp: 108080 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -1 / timestamp: 112974 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -8 / timestamp: 115528 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -9 / timestamp: 122758 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 124862 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -12 / timestamp: 130307 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -140 / timestamp: 150079 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -144 / timestamp: 156606 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -245 / timestamp: 158916 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 231587 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -1 / timestamp: 234743 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -9 / timestamp: 239406 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 242670 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -4 / timestamp: 249833 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -9 / timestamp: 252669 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 257713 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -2 / timestamp: 272866 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -152 / timestamp: 276417 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -3 / timestamp: 290209 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 302825 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 305466 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -3 / timestamp: 314151 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -8 / timestamp: 315957 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -1 / timestamp: 322568 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -164 / timestamp: 333373 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -3 / timestamp: 379341 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -5 / timestamp: 385070 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -7 / timestamp: 396166 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -7 / timestamp: 402007 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -4 / timestamp: 404571 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -2 / timestamp: 418218 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -5 / timestamp: 428136 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -5 / timestamp: 433347 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -4 / timestamp: 438939 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -7 / timestamp: 445657 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 449039 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -6 / timestamp: 451870 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  [mp4 @ 00000000003fe020] Application provided duration: -5 / timestamp: 456582 is out of range for mov/mp4 format
  
  [mp4 @ 00000000003fe020] pts has no value
  
  frame=12279 fps=138 q=-1.0 Lsize= 1477815kB time=00:08:32.16 bitrate=23637.2kbits/s
  
  video:1465658kB audio:11840kB subtitle:8kB other streams:0kB global headers:0kB muxing overhead: 0.020907%

• FFMPEG concat demuxer - how to make file formats compatible ?

  10 avril 2015, par user206481

  I need to automate mp4 concatenation server-side and I’m using FFMPEG. I will get uploads of mp4 files and I want to attach a Title.mp4 and End.mp4 to each one. I am also overlaying a soundtrack (the input videos do not have sound) There is a potential high server load so I’d like to do it as efficiently as possible using ffmpeg’s concat demuxer to avoid re-encoding the video.

  After receiving samples of each file, I am not successful and I believe it is due to mismatched file formats. My result has good Title.mp4 and audio, then when the sample uploaded mp4 is supposed to play there is garbled green/pink/red pixels on the top half of the video, then the End.mp4 plays fine. Here is my ffmpeg command and output :

  $ ffmpeg -f concat -i <(printf "file '%s'\n" Title.mp4 Sample.mp4 End.mp4) -i SoundTrack.wav -c:v copy -strict -2 -y Out.mp4
  
  
  
  ffmpeg version 2.6.1 Copyright (c) 2000-2015 the FFmpeg developers
  
  built with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-55)
  
  configuration: --prefix=/home/dpmsmobi/ffmpeg_build --extra-cflags=-I/home/dpmsmobi/ffmpeg_build/include --extra-ldflags=-L/home/dpmsmobi/ffmpeg_build/lib --bindir=/home/dpmsmobi/bin --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
  
    libavutil      54. 20.100 / 54. 20.100
  
    libavcodec     56. 26.100 / 56. 26.100
  
    libavformat    56. 25.101 / 56. 25.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 11.102 /  5. 11.102
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, concat, from '/dev/fd/63':
  
    Duration: N/A, start: 0.000000, bitrate: 1810 kb/s
  
      Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 768x512 [SAR 1:1 DAR 3:2], 1810 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc
  
  Guessed Channel Layout for  Input Stream #1.0 : stereo
  
  Input #1, wav, from 'SoundTrack.wav':
  
    Metadata:
  
      encoded_by      : Adobe Premiere Pro CC 2014 (Maci
  
      encoder         : Adobe Premiere Pro CC 2014 (Macintosh)
  
      date            : 2015-04-07
  
      creation_time   : 11:12:10
  
      time_reference  : 0
  
    Duration: 00:00:15.06, bitrate: 1551 kb/s
  
      Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s
  
  Output #0, mp4, to 'Out.mp4':
  
    Metadata:
  
      encoder         : Lavf56.25.101
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 768x512 [SAR 1:1 DAR 3:2], q=2-31, 1810 kb/s, 30 fps, 30 tbr, 30k tbn, 30k tbc
  
      Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc56.26.100 aac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #1:0 -> #0:1 (pcm_s16le (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [concat @ 0x1dedc20] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
  
  [concat @ 0x1dedc20] DTS 69750 < 91000 out of order
  
  [mp4 @ 0x1f75060] Non-monotonous DTS in output stream 0:0; previous: 91000, current: 69750; changing to 91001. This may result in incorrect timestamps in the output file.
  
  
  
  <----- many more Non-monotonous DTS messages omitted here ---->
  
  
  
  frame=  427 fps=0.0 q=-1.0 Lsize=    4123kB time=00:00:15.06 bitrate=2242.5kbits/s    
  
  video:3873kB audio:236kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.344173%

  I can successfully concatenate the Title.mp4 to the End.mp4, and I can successfully concatenate two Sample.mp4 files, so I know I’ve got the ffmpeg command right. I can also successfully concat the files using the following ffmpeg command with filter_complex instead of concat demuxer (this takes considerably longer due to re-encoding) :

  ffmpeg -i Title.mp4 -i Sample.mp4 -i End.mp4 -i SoundTrack.wav -filter_complex '[0:0] [1:0] [2:0] concat=n=3:v=1 [v]' -map '[v]' -map 3:0 -crf 20 -strict -2 -y Out2.mp4 

  Here is the MediaInfo output for each type of mp4 file :

  $ mediainfo Title.mp4
  
  General
  
  Complete name                            : Title.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media / Version 2
  
  Codec ID                                 : mp42
  
  File size                                : 693 KiB
  
  Duration                                 : 3s 100ms
  
  Overall bit rate mode                    : Variable
  
  Overall bit rate                         : 1 831 Kbps
  
  Encoded date                             : UTC 2015-04-07 19:15:03
  
  Tagged date                              : UTC 2015-04-07 19:15:03
  
  ©TIM                                     : 00:00:00:00
  
  ©TSC                                     : 30
  
  ©TSZ                                     : 1
  
  
  
  Video
  
  ID                                       : 1
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : Main@L3.1
  
  Format settings, CABAC                   : Yes
  
  Format settings, ReFrames                : 3 frames
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 3s 100ms
  
  Bit rate mode                            : Variable
  
  Bit rate                                 : 1 811 Kbps
  
  Maximum bit rate                         : 3 000 Kbps
  
  Width                                    : 768 pixels
  
  Height                                   : 512 pixels
  
  Display aspect ratio                     : 3:2
  
  Frame rate mode                          : Constant
  
  Frame rate                               : 30.000 fps
  
  Standard                                 : NTSC
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.154
  
  Stream size                              : 685 KiB (99%)
  
  Language                                 : English
  
  Encoded date                             : UTC 2015-04-07 19:15:03
  
  Tagged date                              : UTC 2015-04-07 19:15:03
  
  Color range                              : Limited
  
  
  
  $ mediainfo Sample.mp4
  
  General
  
  Complete name                            : Sample.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media
  
  Codec ID                                 : isom
  
  File size                                : 2.93 MiB
  
  Duration                                 : 7s 9ms
  
  Overall bit rate                         : 3 505 Kbps
  
  Encoded date                             : UTC 1970-01-01 00:00:00
  
  Tagged date                              : UTC 1970-01-01 00:00:00
  
  Writing application                      : Lavf52.64.2
  
  
  
  Video
  
  ID                                       : 1
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : Baseline@L3.1
  
  Format settings, CABAC                   : No
  
  Format settings, ReFrames                : 1 frame
  
  Format settings, GOP                     : M=1, N=30
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 7s 9ms
  
  Bit rate                                 : 3 500 Kbps
  
  Width                                    : 768 pixels
  
  Height                                   : 512 pixels
  
  Display aspect ratio                     : 3:2
  
  Frame rate mode                          : Variable
  
  Frame rate                               : 30.250 fps
  
  Minimum frame rate                       : 23.462 fps
  
  Maximum frame rate                       : 296.053 fps
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.294
  
  Stream size                              : 2.92 MiB (100%)
  
  Language                                 : English
  
  Encoded date                             : UTC 1970-01-01 00:00:00
  
  Tagged date                              : UTC 1970-01-01 00:00:00

  I’m pretty sure it’s the mp42 vs isom Codec ID’s, and potentially the constant vs variable frame rates. I can’t change the input mp4’s but I know their format will stay the same. How can I reformat the Title and End mp4’s to match the input mp4 files so I can use ffmpeg concat demux ?

• How can i create a portrait video using Android's MediaRecorder

  23 mars 2015, par urudroid

  I have an Android application which is able to record and play a videos in portrait mode, those features are working fine on Android phones.

  The issue comes up because this video is needed to be played also on iOS devices (after being shared through a server).

  iOS is not correctly showing the video as it looks "cropped", but videos recorded on iOS are played without issues.

  So, the main difference between videos created on Android and iOS’ is the size and the rotation.

  Im using CWAC-Camera library for preview and recording and ffmpeg to scale the video down to 320x568px (as this is the standard size for both Android and iOS apps).

  Here is the metadata from an video created from Android :

  General
  
  Complete name                            : android_video.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media
  
  Codec ID                                 : isom
  
  File size                                : 447 KiB
  
  Duration                                 : 5s 596ms
  
  Overall bit rate                         : 654 Kbps
  
  Encoded date                             : UTC 1904-01-01 00:00:00
  
  Tagged date                              : UTC 1904-01-01 00:00:00
  
  Writing application                      : Lavf56.4.101
  
  
  
  Video
  
  ID                                       : 1
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : High@L2.1
  
  Format settings, CABAC                   : Yes
  
  Format settings, ReFrames                : 4 frames
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 5s 406ms
  
  Bit rate                                 : 536 Kbps
  
  Width                                    : 568 pixels
  
  Height                                   : 320 pixels
  
  Display aspect ratio                     : 16:9
  
  Original display aspect ratio            : 16:9
  
  Rotation                                 : 270°
  
  Frame rate mode                          : Constant
  
  Frame rate                               : 14.985 fps
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.197
  
  Stream size                              : 354 KiB (79%)
  
  Writing library                          : x264 core 142
  
  Encoding settings                        : 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=14 / 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
  
  Language                                 : English
  
  Encoded date                             : UTC 1904-01-01 00:00:00
  
  Tagged date                              : UTC 1904-01-01 00:00:00
  
  
  
  Audio
  
  ID                                       : 2
  
  Format                                   : AAC
  
  Format/Info                              : Advanced Audio Codec
  
  Format profile                           : LC
  
  Codec ID                                 : 40
  
  Duration                                 : 5s 596ms
  
  Bit rate mode                            : Constant
  
  Bit rate                                 : 132 Kbps
  
  Channel(s)                               : 2 channels
  
  Channel(s)_Original                      : 1 channel
  
  Channel positions                        : Front: C
  
  Sampling rate                            : 44.1 KHz
  
  Compression mode                         : Lossy
  
  Stream size                              : 89.4 KiB (20%)
  
  Language                                 : English
  
  Encoded date                             : UTC 1904-01-01 00:00:00
  
  Tagged date                              : UTC 1904-01-01 00:00:00

  And here is the metadata from the video created on iOS :

  General
  
  Complete name                            : ios_video.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media / Version 2
  
  Codec ID                                 : mp42
  
  File size                                : 673 KiB
  
  Duration                                 : 7s 38ms
  
  Overall bit rate                         : 783 Kbps
  
  Encoded date                             : UTC 2015-03-17 19:16:36
  
  Tagged date                              : UTC 2015-03-17 19:16:37
  
  
  
  Video
  
  ID                                       : 2
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : Main@L3.0
  
  Format settings, CABAC                   : Yes
  
  Format settings, ReFrames                : 2 frames
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 7s 33ms
  
  Bit rate                                 : 711 Kbps
  
  Width                                    : 320 pixels
  
  Height                                   : 568 pixels
  
  Display aspect ratio                     : 0.563
  
  Frame rate mode                          : Constant
  
  Frame rate                               : 30.000 fps
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.130
  
  Stream size                              : 610 KiB (91%)
  
  Title                                    : Core Media Video
  
  Encoded date                             : UTC 2015-03-17 19:16:36
  
  Tagged date                              : UTC 2015-03-17 19:16:37
  
  Color primaries                          : BT.709
  
  Transfer characteristics                 : BT.709
  
  Matrix coefficients                      : BT.709
  
  Color range                              : Limited
  
  
  
  Audio
  
  ID                                       : 1
  
  Format                                   : AAC
  
  Format/Info                              : Advanced Audio Codec
  
  Format profile                           : LC
  
  Codec ID                                 : 40
  
  Duration                                 : 7s 38ms
  
  Source duration                          : 7s 105ms
  
  Bit rate mode                            : Constant
  
  Bit rate                                 : 64.0 Kbps
  
  Channel(s)                               : 2 channels
  
  Channel(s)_Original                      : 1 channel
  
  Channel positions                        : Front: C
  
  Sampling rate                            : 44.1 KHz
  
  Compression mode                         : Lossy
  
  Stream size                              : 56.8 KiB (8%)
  
  Source stream size                       : 57.2 KiB (9%)
  
  Title                                    : Core Media Audio
  
  Encoded date                             : UTC 2015-03-17 19:16:36
  
  Tagged date                              : UTC 2015-03-17 19:16:37

  The values width and height are inverted on Android, also the Rotation parameter is set to 270º (this is the rotation parameter for portrait videos).

  This is a sketch of how iOS’ videos look on iOS app :

  

  And this is how Android’s videos look on iOS app :

  

  So, in order to get the videos correctly displayed both on iOS and Android i need to be able to set the width to 320 and height to 568 on Android. I tried it from several places (outside and inside CWAC-Camera library) but i always get a Camera.Parameters error.

  It is possible to do this on Android ?

  EDIT :

  This is the result i get when i set the rotation to 0 with ffmpeg :