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Core Media Video
4 avril 2013, par
Mis à jour : Juin 2013
Langue : français
Type : Video
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Video d’abeille en portrait
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Type : Video
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Make a duet video like tiktok
27 juin 2020, par user1hjgjhgjhggjhgHello I want to create a duet video feature like tiktok. I am using FFmepg. I have tried this code


ffmpeg -i movie_output.mp4 -i movie_output.mp4 -filter_complex "nullsrc=size=360x480[base]; \ [0:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0[left]; \ [1:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0 [right]; \ [base][left] overlay=x=0:y=0[base1]; \ [base1][right] overlay=shortest=1:x=180:y=0" -c:v libx264 -y result.mp4


It gives me this error


No such filter: ' '
Error initializing complex filters.
Invalid argument


Whole output


ubuntu@ip-171-xx-xx-xxx: ffmpeg -i movie_output.mp4 -i movie_output.mp4 -filter_complex "nullsrc=size=360x480[base]; \ [0:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0[left]; \ [1:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0 [right]; \ [base][left] overlay=x=0:y=0[base1]; \ [base1][right] overlay=shortest=1:x=180:y=0" -c:v libx264 -y result.mp4


ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
 configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
 libavutil 55. 78.100 / 55. 78.100
 libavcodec 57.107.100 / 57.107.100
 libavformat 57. 83.100 / 57. 83.100
 libavdevice 57. 10.100 / 57. 10.100
 libavfilter 6.107.100 / 6.107.100
 libavresample 3. 7. 0 / 3. 7. 0
 libswscale 4. 8.100 / 4. 8.100
 libswresample 2. 9.100 / 2. 9.100
 libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 comment : vid:v090440c0000brppph37mt2vmmsj1dig
 Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 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
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 comment : vid:v090440c0000brppph37mt2vmmsj1dig
 Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
 Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
 Metadata:
 handler_name : SoundHandler
[AVFilterGraph @ 0x560fd395e2e0] No such filter: ' '
Error initializing complex filters.
Invalid argument


I have tried this as well


ffmpeg -report -i "movie_output.mp4" -i "movie_output.mp4" -an \ -filter_complex \ "[0:v]trim=start=0:end=9,setpts=PTS-STARTPTS[firstclip]; \ [1:v]trim=start=1,setpts=PTS-STARTPTS[secondclip]; \ [0:v]trim=start=9:end=10,setpts=PTS-STARTPTS[fadeoutsrc]; \ [1:v]trim=start=0:end=1,setpts=PTS-STARTPTS[fadeinsrc]; \ [fadeinsrc]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1[fadein]; \ [fadeoutsrc]format=pix_fmts=yuva420p,fade=t=out:st=0:d=1:alpha=1[fadeout]; \ [fadein]fifo[fadeinfifo]; \ [fadeout]fifo[fadeoutfifo]; \ [fadeoutfifo][fadeinfifo]overlay[crossfade]; \ [firstclip][crossfade][secondclip]concat=n=3" \ outputname.mp4
ffmpeg started on 2020-06-27 at 10:11:41
Report written to "ffmpeg-20200627-101141.log"
ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
 configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
 libavutil 55. 78.100 / 55. 78.100
 libavcodec 57.107.100 / 57.107.100
 libavformat 57. 83.100 / 57. 83.100
 libavdevice 57. 10.100 / 57. 10.100
 libavfilter 6.107.100 / 6.107.100
 libavresample 3. 7. 0 / 3. 7. 0
 libswscale 4. 8.100 / 4. 8.100
 libswresample 2. 9.100 / 2. 9.100
 libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 comment : vid:v090440c0000brppph37mt2vmmsj1dig
 Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 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
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 comment : vid:v090440c0000brppph37mt2vmmsj1dig
 Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
 Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
 Metadata:
 handler_name : SoundHandler
[NULL @ 0x562dea344220] Unable to find a suitable output format for ' -filter_complex'
 -filter_complex: Invalid argument


This code gives this error


Unable to find a suitable output format for ' -filter_complex'
 -filter_complex: Invalid argument


Anyone can help ?


-
Concat filter : Error initializing output stream
18 juin 2020, par Ittai BarkaiThis is a follow-up question to : Flutter (Dart) : Merge two videos and view the new output in the device’s gallery (photos)



In essence, I am trying to record two videos, merge them and then view the new video in the gallery. I am currently having some issues with the flutter_ffmpeg package.



I uploaded the my Flutter project onto GitHub here :



https://github.com/IttaiBarkai/Flutter-Video-Merger



Below is a snippet of my code used to execute ffmpeg :



void _videoMerger() async {

 final appDir = await syspaths.getApplicationDocumentsDirectory();
 String rawDocumentPath = appDir.path;
 final outputPath = '$rawDocumentPath/output.mp4';

 final FlutterFFmpeg _flutterFFmpeg = new FlutterFFmpeg();

 String commandToExecute = '-y -i ${_storedVideoOne.path} -i ${_storedVideoTwo.path} -filter_complex \'[0:0][1:0]concat=n=2:v=1:a=0[out]\' -map \'[out]\' $outputPath';
 _flutterFFmpeg.execute(commandToExecute).then((rc) => print("FFmpeg process exited with rc $rc"));

 }



and this is the output displayed on my debug console when ffmpeg gets executed :



D/flutter-ffmpeg(29135): Running FFmpeg with arguments: [-y, -i, /storage/emulated/0/Android/data/com.example.video_merger_two/files/Pictures/1e8947f4-c9c2-4020-b78d-c40fb77ce0d16301015681843175998.mp4, -i, /storage/emulated/0/Android/data/com.example.video_merger_two/files/Pictures/3555b190-a9a6-450d-b6a7-7d1b8fc89ad38627500242651150494.mp4, -filter_complex, [0:0][1:0]concat=n=2:v=1:a=0[out], -map, [out], /data/user/0/com.example.video_merger_two/app_flutter/output.mp4].
 I/mobile-ffmpeg(29135): Loading mobile-ffmpeg.
 I/mobile-ffmpeg(29135): Loaded mobile-ffmpeg-https-x86-4.3.1-20200125.
 D/mobile-ffmpeg(29135): Callback thread started.
 I/mobile-ffmpeg(29135): ffmpeg version git-2020-01-25-fd11dd500
 I/mobile-ffmpeg(29135): Copyright (c) 2000-2020 the FFmpeg developers
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): built with Android (5220042 based on r346389c) clang version 8.0.7 (https://android.googlesource.com/toolchain/clang b55f2d4ebfd35bf643d27dbca1bb228957008617) (https://android.googlesource.com/toolchain/llvm 3c393fe7a7e13b0fba4ac75a01aa683d7a5b11cd) (based on LLVM 8.0.7svn)
 I/mobile-ffmpeg(29135): configuration: --cross-prefix=i686-linux-android- --sysroot=/files/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-x86/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=i686 --cpu=i686 --cc=i686-linux-android24-clang --cxx=i686-linux-android24-clang++ --target-os=android --disable-neon --disable-asm --disable-inline-asm --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --enable-shared --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-static --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --di
 I/mobile-ffmpeg(29135): libavutil 56. 38.100 / 56. 38.100
 I/mobile-ffmpeg(29135): libavcodec 58. 65.102 / 58. 65.102
 I/mobile-ffmpeg(29135): libavformat 58. 35.101 / 58. 35.101
 I/mobile-ffmpeg(29135): libavdevice 58. 9.103 / 58. 9.103
 I/mobile-ffmpeg(29135): libavfilter 7. 70.101 / 7. 70.101
 I/mobile-ffmpeg(29135): libswscale 5. 6.100 / 5. 6.100
 I/mobile-ffmpeg(29135): libswresample 3. 6.100 / 3. 6.100
 I/mobile-ffmpeg(29135): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.example.video_merger_two/files/Pictures/1e8947f4-c9c2-4020-b78d-c40fb77ce0d16301015681843175998.mp4':
 I/mobile-ffmpeg(29135): Metadata:
 I/mobile-ffmpeg(29135): major_brand :
 I/mobile-ffmpeg(29135): mp42
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): minor_version :
 I/mobile-ffmpeg(29135): 0
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): compatible_brands:
 I/mobile-ffmpeg(29135): isommp42
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): creation_time :
 I/mobile-ffmpeg(29135): 2020-06-17T18:26:00.000000Z
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): com.android.version:
 I/mobile-ffmpeg(29135): 10
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Duration:
 I/mobile-ffmpeg(29135): 27:34:19.38
 I/mobile-ffmpeg(29135): , start:
 I/mobile-ffmpeg(29135): 0.000000
 I/mobile-ffmpeg(29135): , bitrate:
 I/mobile-ffmpeg(29135): 0 kb/s
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Stream #0:0
 I/mobile-ffmpeg(29135): (eng)
 I/mobile-ffmpeg(29135): : Video: h264 (avc1 / 0x31637661), yuv420p(tv, GBR), 1280x720, 3554 kb/s
 I/mobile-ffmpeg(29135): , SAR 1:1 DAR 16:9
 I/mobile-ffmpeg(29135): ,
 I/mobile-ffmpeg(29135): 29.01 fps,
 I/mobile-ffmpeg(29135): 29 tbr,
 I/mobile-ffmpeg(29135): 90k tbn,
 I/mobile-ffmpeg(29135): 180k tbc 
 I/mobile-ffmpeg(29135): (default)
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Metadata:
 I/mobile-ffmpeg(29135): rotate :
 I/mobile-ffmpeg(29135): 90
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): creation_time :
 I/mobile-ffmpeg(29135): 2020-06-17T18:26:00.000000Z
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): handler_name :
 I/mobile-ffmpeg(29135): VideoHandle
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Side data:
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): displaymatrix: rotation of -90.00 degrees
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Stream #0:1
 I/mobile-ffmpeg(29135): (eng)
 I/mobile-ffmpeg(29135): : Audio: amr_nb (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s
 I/mobile-ffmpeg(29135): (default)
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Metadata:
 I/mobile-ffmpeg(29135): creation_time :
 I/mobile-ffmpeg(29135): 2020-06-17T18:26:00.000000Z
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): handler_name :
 I/mobile-ffmpeg(29135): SoundHandle
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.example.video_merger_two/files/Pictures/3555b190-a9a6-450d-b6a7-7d1b8fc89ad38627500242651150494.mp4':
 I/mobile-ffmpeg(29135): Metadata:
 I/mobile-ffmpeg(29135): major_brand :
 I/mobile-ffmpeg(29135): mp42
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): minor_version :
 I/mobile-ffmpeg(29135): 0
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): compatible_brands:
 I/mobile-ffmpeg(29135): isommp42
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): creation_time :
 I/mobile-ffmpeg(29135): 2020-06-17T18:26:09.000000Z
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): com.android.version:
 I/mobile-ffmpeg(29135): 10
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Duration:
 I/mobile-ffmpeg(29135): 27:34:19.62
 I/mobile-ffmpeg(29135): , start:
 I/mobile-ffmpeg(29135): 0.000000
 I/mobile-ffmpeg(29135): , bitrate:
 I/mobile-ffmpeg(29135): 0 kb/s
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Stream #1:0
 I/mobile-ffmpeg(29135): (eng)
 I/mobile-ffmpeg(29135): : Video: h264 (avc1 / 0x31637661), yuv420p(tv, GBR), 1280x720, 3765 kb/s
 I/mobile-ffmpeg(29135): , SAR 1:1 DAR 16:9
 I/mobile-ffmpeg(29135): ,
 I/mobile-ffmpeg(29135): 28.80 fps,
 I/mobile-ffmpeg(29135): 29.08 tbr,
 I/mobile-ffmpeg(29135): 90k tbn,
 I/mobile-ffmpeg(29135): 180k tbc
 I/mobile-ffmpeg(29135): (default)
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Metadata:
 I/mobile-ffmpeg(29135): rotate :
 I/mobile-ffmpeg(29135): 90
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): creation_time :
 I/mobile-ffmpeg(29135): 2020-06-17T18:26:09.000000Z
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): handler_name :
 I/mobile-ffmpeg(29135): VideoHandle
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Side data:
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): displaymatrix: rotation of -90.00 degrees
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Stream #1:1
 I/mobile-ffmpeg(29135): (eng)
 I/mobile-ffmpeg(29135): : Audio: amr_nb (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s
 I/mobile-ffmpeg(29135): (default)
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Metadata:
 I/mobile-ffmpeg(29135): creation_time :
 I/mobile-ffmpeg(29135): 2020-06-17T18:26:09.000000Z
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): handler_name :
 I/mobile-ffmpeg(29135): SoundHandle
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Stream mapping:
 I/mobile-ffmpeg(29135): Stream #0:0 (h264) -> concat:in0:v0
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): Stream #1:0 (h264) -> concat:in1:v0
 I/mobile-ffmpeg(29135):
 I/mobile-ffmpeg(29135): concat
 I/mobile-ffmpeg(29135): -> Stream #0:0 (mpeg4)
 I/mobile-ffmpeg(29135): Press [q] to stop, [?] for help
 W/mobile-ffmpeg(29135): [graph 0 input from stream 0:0 @ 0xed087710] sws_param option is deprecated and ignored
 W/mobile-ffmpeg(29135): [graph 0 input from stream 1:0 @ 0xed086830] sws_param option is deprecated and ignored
 W/mobile-ffmpeg(29135): [mp4 @ 0xeccd8790] Frame rate very high for a muxer not efficiently supporting it.
 W/mobile-ffmpeg(29135): Please consider specifying a lower framerate, a different muxer or -vsync 2
 E/mobile-ffmpeg(29135): [mpeg4 @ 0xe68049d0] timebase 1/1000000 not supported by MPEG 4 standard, the maximum admitted value for the timebase denominator is 65535
 E/mobile-ffmpeg(29135): Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
 I/mobile-ffmpeg(29135): Conversion failed!
 D/flutter-ffmpeg(29135): FFmpeg exited with rc: 1
 I/flutter (29135): FFmpeg process exited with rc 1


-
ffmpeg webm to mp4 conversion failed
13 juin 2020, par Jaunius BumptirkluTrying to convert webm file to mp4. Getting "conversion failed" as a result. Other webm files I am working with converts just fine.



ffprobe info on inputfile.webm



$ ffprobe -v quiet -print_format json -show_format -show_streams inputfile.webm
{
 "streams": [
 {
 "index": 0,
 "codec_name": "vp8",
 "codec_long_name": "On2 VP8",
 "profile": "0",
 "codec_type": "video",
 "codec_time_base": "1/30",
 "codec_tag_string": "[0][0][0][0]",
 "codec_tag": "0x0000",
 "width": 640,
 "height": 480,
 "coded_width": 640,
 "coded_height": 480,
 "has_b_frames": 0,
 "sample_aspect_ratio": "1:1",
 "display_aspect_ratio": "4:3",
 "pix_fmt": "yuv420p",
 "level": -99,
 "field_order": "progressive",
 "refs": 1,
 "r_frame_rate": "30/1",
 "avg_frame_rate": "30/1",
 "time_base": "1/1000",
 "start_pts": 0,
 "start_time": "0.000000",
 "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
 }
 },
 {
 "index": 1,
 "codec_name": "opus",
 "codec_long_name": "Opus (Opus Interactive Audio Codec)",
 "codec_type": "audio",
 "codec_time_base": "1/48000",
 "codec_tag_string": "[0][0][0][0]",
 "codec_tag": "0x0000",
 "sample_fmt": "fltp",
 "sample_rate": "48000",
 "channels": 1,
 "channel_layout": "mono",
 "bits_per_sample": 0,
 "r_frame_rate": "0/0",
 "avg_frame_rate": "0/0",
 "time_base": "1/1000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 12333,
 "duration": "12.333000",
 "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
 }
 }
 ],
 "format": {
 "filename": "inputfile.webm",
 "nb_streams": 2,
 "nb_programs": 0,
 "format_name": "matroska,webm",
 "format_long_name": "Matroska / WebM",
 "start_time": "0.000000",
 "duration": "12.333000",
 "size": "1609303",
 "bit_rate": "1043900",
 "probe_score": 100,
 "tags": {
 "encoder": "Lavf56.40.101",
 "creation_time": "2020-06-12T11:32:05.000000Z"
 }
 }
}



ffmpeg conversion log for command "ffmpeg -i inputfile.webm out.mp4" is below.



$ ffmpeg -i inputfile.webm out.mp4
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
 built with Apple clang version 11.0.3 (clang-1103.0.32.59)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_3 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags=-fno-stack-check --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
Input #0, matroska,webm, from 'inputfile.webm':
 Metadata:
 encoder : Lavf56.40.101
 creation_time : 2020-06-12T11:32:05.000000Z
 Duration: 00:00:12.33, start: 0.000000, bitrate: 1043 kb/s
 Stream #0:0: Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
 Stream #0:1: Audio: opus, 48000 Hz, mono, fltp (default)
Stream mapping:
 Stream #0:0 -> #0:0 (vp8 (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (opus (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7f9e64811600] using SAR=1/1
[libx264 @ 0x7f9e64811600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f9e64811600] profile High, level 5.0
[libx264 @ 0x7f9e64811600] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: 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=18 lookahead_threads=3 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=25 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
Too many packets buffered for output stream 0:0.577014:32:22.77 bitrate= -0.0kbits/s dup=45 drop=0 speed=N/A
[libx264 @ 0x7f9e64811600] frame I:1 Avg QP:16.69 size: 56001
[libx264 @ 0x7f9e64811600] frame P:33 Avg QP:19.46 size: 9705
[libx264 @ 0x7f9e64811600] frame B:95 Avg QP:19.23 size: 662
[libx264 @ 0x7f9e64811600] consecutive B-frames: 0.8% 0.0% 4.6% 94.7%
[libx264 @ 0x7f9e64811600] mb I I16..4: 46.7% 36.4% 16.9%
[libx264 @ 0x7f9e64811600] mb P I16..4: 4.0% 9.4% 0.5% P16..4: 6.5% 1.2% 0.6% 0.0% 0.0% skip:77.8%
[libx264 @ 0x7f9e64811600] mb B I16..4: 0.1% 0.1% 0.0% B16..8: 6.0% 0.1% 0.0% direct: 0.7% skip:93.0% L0:44.7% L1:54.8% BI: 0.4%
[libx264 @ 0x7f9e64811600] 8x8 transform intra:61.3% inter:37.9%
[libx264 @ 0x7f9e64811600] coded y,uvDC,uvAC intra: 8.6% 3.3% 1.3% inter: 0.9% 0.9% 0.1%
[libx264 @ 0x7f9e64811600] i16 v,h,dc,p: 41% 52% 6% 1%
[libx264 @ 0x7f9e64811600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 16% 41% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x7f9e64811600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 40% 17% 2% 2% 2% 2% 1% 3%
[libx264 @ 0x7f9e64811600] i8c dc,h,v,p: 88% 8% 3% 0%
[libx264 @ 0x7f9e64811600] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7f9e64811600] ref P L0: 75.5% 13.1% 9.1% 2.3%
[libx264 @ 0x7f9e64811600] ref B L0: 82.1% 16.4% 1.5%
[libx264 @ 0x7f9e64811600] ref B L1: 97.0% 3.0%
[libx264 @ 0x7f9e64811600] kb/s:816.97
Conversion failed!



I don't have deeper experience with ffmpeg conversions and codecs. It seems to me that this is a frames related problem. Do you have a clue why does it fail ? What options should I use in ffmpeg command to solve this ? Thanks for any help.


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