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Sur d’autres sites (15231)

  • How can I concatenate these two video files that are in different formats with ffmpeg ?

    11 juin 2018, par jaybers

    File s.mp4 is created from a photo and a silent audio track was added in.
    File r.mp4 was created using the built in video record on an android tablet.

    I would like to try to match s.mp4 to r.mp4 so that they can concatenate (s then r). Right now, the time base seems off and it plays audio from the r.mp4 but never shows the video. It it always shows the video from s.mp4. I was able to match the tbn of 90k by using -video_track_timescale 90k but I did not know how to match the tbc. It is 180k on one and 59.94 on the other.

    Probe for s.mp4

    ./ffprobe s.mp4 
    
ffprobe version 4.0-tessus Copyright (c) 2007-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
    
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 's.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.25.100
    
  Duration: 00:00:05.04, start: 0.000000, bitrate: 296 kb/s
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 286 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    Probe for r.mp4

    ./ffprobe r.mp4 
    
ffprobe version 4.0-tessus Copyright (c) 2007-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
    
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'r.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2018-06-11T20:12:03.000000Z
    
    com.android.version: 7.0
    
  Duration: 00:00:10.89, start: 0.000000, bitrate: 17087 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/smpte170m), 1920x1080, 16810 kb/s, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
    
    Metadata:
    
      creation_time   : 2018-06-11T20:12:03.000000Z
    
      handler_name    : VideoHandle
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default)
    
    Metadata:
    
      creation_time   : 2018-06-11T20:12:03.000000Z
    
      handler_name    : SoundHandle

  • ffmpeg encoding .mp4 fails in safari when hosted from s3. handbrake encoded video works first time

    11 juin 2018, par Simon Rogers

    The mp4 videos I’ve encoded with ffmpeg work perfectly in Safari if stored locally, but break if hosted from s3. I have tried countless encoding settings to no avail.

    However having just run a mov quickly through Handbrake and ticking ’optimise for web’ and encoding baseline @ 4.0, this has worked perfectly first time.

    I don’t understand what could be going wrong with my ffmpeg encoding.

    Things I have noticed about files from two separate encoders which work :

    They both have yuv420p(tv, bt709) whereas ffmpeg is just saying yuv420p – this is the only thing I can identify from ffprobe that is consistently different.

    I have done a fresh install of ffmpeg to no avail :

    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

    brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-libass  --with-libvorbis --with-libvpx --with-opus --with-x265

    This error appears in all the files I have encoded with ffmpeg :

    Unsupported codec with id 0 for input stream 1

    ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

    mp4box gives the following for the ffmpeg video, which doesn’t work :

     Tempuras-iMac:tests tempura$ mp4box -info /Users/tempura/tests/mov-output-10-1400.mp4
    
* Movie Info *
    
Timescale 1000 - 1 track
    
Computed Duration 00:00:10.967 - Indicated Duration 00:00:10.967
    
Fragmented File: no
    
File suitable for progressive download (moov before mdat)
    
File Brand isom - version 512
    
    Compatible brands: isom iso2 avc1 mp41
    
Created: UNKNOWN DATE   Modified: UNKNOWN DATE
    
File has no MPEG4 IOD/OD
    

    
iTunes Info:
    
Encoder Software: Lavf58.12.100
    
1 UDTA types: meta (1) 
    

    
Track # 1 Info - TrackID 1 - TimeScale 15360
    
Media Duration 00:00:10.966 - Indicated Duration 00:00:10.966
    
Track has 1 edit lists: track duration is 00:00:10.967
    
Media Info: Language "English (eng)" - Type "vide:avc1" - 329 samples
    
Visual Track layout: x=0 y=0 width=1800 height=1200
    
MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21
    
AVC/H264 Video - Visual Size 1800 x 1200
    
AVC Info: 1 SPS - 1 PPS - Profile Baseline @ Level 4
    
NAL Unit length bits: 32
    
Pixel Aspect Ratio 1:1 - Indicated track size 1800 x 1200
    
Chroma format YUV 4:2:0 - Luma bit depth 8 - chroma bit depth 8
    
SPS#1 hash: 2BD106A8DFD73B92825D87D4D312B22F9CEC1986
    
PPS#1 hash: 656AE5F3BE854F3C8B889E72310662390F18EDBD
    
Self-synchronized
    
RFC6381 Codec Parameters: avc1.42C028
    
Average GOP length: 329 samples

    And gives the following for two videos that do work.

    First :

    Tempuras-iMac:tests tempura$ mp4box -info /Users/tempura/tests/mov-output-05-1400.mp4 
    
[iso file] Unknown box type tmcd
    
[iso file] Read Box type  (0x00000000) has size 0 but is not at root/file level, skipping
    
 * Movie Info *
    
Timescale 1000 - 2 tracks
    
Computed Duration 00:00:10.967 - Indicated Duration 00:00:10.967
    
Fragmented File: no
    
File suitable for progressive download (moov before mdat)
    
File Brand isom - version 512
    
    Compatible brands: isom iso2 avc1 mp41
    
Created: UNKNOWN DATE   Modified: UNKNOWN DATE
    
File has no MPEG4 IOD/OD
    

    
iTunes Info:
    
Encoder Software: Lavf58.12.100
    
1 UDTA types: meta (1) 
    

    
Track # 1 Info - TrackID 1 - TimeScale 15360
    
Media Duration 00:00:10.966 - Indicated Duration 00:00:10.966
    
Track has 1 edit lists: track duration is 00:00:10.967
    
Media Info: Language "English (eng)" - Type "vide:avc1" - 329 samples
    
Visual Track layout: x=0 y=0 width=1800 height=1200
    
MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21
    
AVC/H264 Video - Visual Size 1800 x 1200
    
AVC Info: 1 SPS - 1 PPS - Profile Baseline @ Level 4
    
NAL Unit length bits: 32
    
Pixel Aspect Ratio 1:1 - Indicated track size 1800 x 1200
    
Chroma format YUV 4:2:0 - Luma bit depth 8 - chroma bit depth 8
    
SPS#1 hash: 39D86732FD5F78B18F2E83C651FAE38EA0E30A6D
    
PPS#1 hash: 656AE5F3BE854F3C8B889E72310662390F18EDBD
    
Self-synchronized
    
RFC6381 Codec Parameters: avc1.42C028
    
Average GOP length: 329 samples
    

    
Track # 2 Info - TrackID 2 - TimeScale 15360
    
Media Duration 00:00:10.966 - Indicated Duration 00:00:10.966
    
Track has 1 edit lists: track duration is 00:00:10.967
    
Track is disabled
    
Media Info: Language "Undetermined (und)" - Type "tmcd:tmcd" - 1 samples
    
Unknown media type
    
RFC6381 Codec Parameters: tmcd
    
All samples are sync

    Second :

    Tempuras-iMac:tests tempura$ mp4box -info /Users/tempura/Documents/yes_2106.mp4 
    
* Movie Info *
    
Timescale 30000 - 1 track
    
Computed Duration 00:00:10.966 - Indicated Duration 00:00:10.966
    
Fragmented File: no
    
File suitable for progressive download (moov before mdat)
    
File Brand isom - version 1
    
    Compatible brands: isom avc1 mp42
    
Created: GMT Fri Jun  1 11:24:54 2018
    
Modified: GMT Fri Jun  1 11:24:54 2018
    

    
File has root IOD (9 bytes)
    
Scene PL 0xff - Graphics PL 0xff - OD PL 0xff
    
Visual PL: ISO Reserved Profile (0x15)
    
Audio PL: No audio capability required (0xff)
    
No streams included in root OD
    

    
Track # 1 Info - TrackID 1 - TimeScale 30
    
Media Duration 00:00:10.966 - Indicated Duration 00:00:10.966
    
Media Info: Language "Undetermined (und)" - Type "vide:avc1" - 329 samples
    
Visual Track layout: x=0 y=0 width=1800 height=1200
    
MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21
    
AVC/H264 Video - Visual Size 1800 x 1200
    
AVC Info: 1 SPS - 1 PPS - Profile Baseline @ Level 4.2
    
NAL Unit length bits: 32
    
Pixel Aspect Ratio 1:1 - Indicated track size 1800 x 1200
    
Chroma format YUV 4:2:0 - Luma bit depth 8 - chroma bit depth 8
    
SPS#1 hash: ED5CFE0A3F65F36ADCFA347C1273A29784E8AEAC
    
PPS#1 hash: 7ECF7597FDDAC5F8C82B54BFB40A1F9A8D8807FA
    
Self-synchronized
    
RFC6381 Codec Parameters: avc1.42C02A
    
Average GOP length: 329 samples

  • ffmpeg combining mp4 videos incorrectly

    9 juin 2018, par wdsfds

    i have a list of 20 mp4 files that I need to combine into one video. They are all 60 FPS, but range in size. In between each mp4 file I need to show its ’intro’, a 1.5 second clip about the file.

    Reference :

    • pics/i.png - intro for the nth mp4 file
    • clips/i_intro.mp4 - mp4 intro generated from i.png
    • clips/i.mp4 - original mp4
    • clips/i_resize.mp4 - 720p mp4

    Here is what I’ve done :

    Convert image to mp4 using this command (taken from this post) :

    ffmpeg -y -i pics/{i}.png -f lavfi -i anullsrc -r 60 -pix_fmt yuv420p -ac 2 -ar 44100 -video_track_timescale 90k -t 1.5 clips/{i}_intro.mp4

    Convert i.mp4 to 720p using this command (taken from this post) :

    ffmpeg -i clips/{i}.mp4 -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 128k -vf scale=-2:720,format=yuv420p {i}_resize.mp4

    Created a file like this :

    file 1_intro.mp4
    
file 1_resize.mp4
    
file 2_intro.mp4
    
file 2_resize.mp4
    
...

    Combine all clips :

    ffmpeg -f concat -i {video_list} -c copy out.mp4

    This generates a file, but it is definitely messed up. When I combined the files I got a ton of warning messages like this :

    [mp4 @ 0x7f88fe01de00] Non-monotonous DTS in output stream 0:0;
    
previous: 48966232, current: 8826932; changing to 48966233. This may
    
result in incorrect timestamps in the output file.

    FFprobe for out.mp4

    ffprobe version 4.0 Copyright (c) 2007-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.12.100
    
  Duration: 00:09:35.56, start: 0.000000, bitrate: 4119 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 4221 kb/s, 59.98 fps, 351.56 tbr, 90k tbn, 120 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 122 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    FFprobe for 1.mp4

    ffprobe version 4.0 Copyright (c) 2007-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:40.94, start: 0.000000, bitrate: 7613 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 7451 kb/s, 60 fps, 60 tbr, 90k tbn, 120 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 160 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    FFprobe for 1_resized.mp4

    ffprobe version 4.0 Copyright (c) 2007-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1_resize.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.12.100
    
  Duration: 00:00:32.37, start: 0.000000, bitrate: 3266 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 3127 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    FFprobe for 1_intro.mp4

    ffprobe version 4.0 Copyright (c) 2007-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1_intro.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.12.100
    
  Duration: 00:00:01.52, start: 0.000000, bitrate: 113 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 4667 kb/s, 60 fps, 60 tbr, 90k tbn, 120 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    I noticed that the length of the files are different, and the tbn in different, but idk what that means. Thanks for helping !

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