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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%

  • Download m3u8 playlist and merge into one C#

    10 août 2014, par trinvh

    Solution 1 :

    I tried this by using create a ffmpeg wrapper, read output from cmd with following command :

    -i \"{m3u8-url-for-download}\" -y -c copy -bsf:a aac_adtstoasc \"{destination-filename}\"

    I can get duration, current state for downloading. Everything seems be ok. However sometimes it crashed and I can’t detect why. It isn’t ALWAYS, but SOMETIME.

    Solution 2 :

    I download m3u8 playlist file and get contents within it. It contains an array *.ts file url that I can easily download by using HttpClient. But I don’t know how to combine these *.ts file into one mp4 file that keeps their format.

    Are there other solutions for doing this ?

  • FFmpeg's trim filter to handle movie files with non-zero start_time for a transcoding task ?

    19 août 2014, par Drake

    For a movie file (ex, ooxx.mp4) with non-zero start_time in video stream, the negative start_time (ex, -0.5) can mean skipping first 0.5s frames, and the positive start_time (ex, 0.7s) can mean postponing the playback for 0.7s.

    I’m wondering if we can make use of FFmpeg’s trim filter (or something else) to strip out some video frames (for negative start_time) or put some empty (ex, black) frames ahead (for positive start_time) automatically ?

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