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    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
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    Videopress
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    License : GNU/GPL v2
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Sur d’autres sites (5077)

  • How to create video from multiple gallery images store in array flutter ffmpeg

    26 janvier 2023, par Ammara

    I select images from gallery using multi_image_picker in flutter and store all images in array.

    


      try {
   resultList = await 
   MultiImagePicker.pickImages(
    maxImages: 300,
    enableCamera: true,
    selectedAssets: images,
    materialOptions: MaterialOptions(
      actionBarTitle: "Photo Editor and Video 
   Maker App",
    ),
  );
 }


    


    User can select images from gallery and store in resultlist array.
Now I want to pass this array to ffmpeg to create video from all these images.

    


    I try a lot and search almost all sites but fail. Here is my code.

    


    Future<void> ConvertImageToVideo () async{&#xA;const String BASE_PATH = &#x27;/storage/emulated/0/Download/&#x27;;&#xA;const String AUDIO_PATH = BASE_PATH &#x2B; &#x27;audiio.mp3&#x27;;&#xA;const String IMAGE_PATH = BASE_PATH &#x2B; &#x27;image002.png&#x27;;&#xA;const String OUTPUT_PATH = BASE_PATH &#x2B; &#x27;output02.mp4&#x27;;&#xA;// final FlutterFFmpeg _flutterFFmpeg = FlutterFFmpeg();&#xA;if(await Permission.storage.request().isGranted){&#xA;  List<asset> resultlist  = <asset>[];&#xA;  String commandToExecute =&#xA;      &#x27;-r 15 -f mp3 -i ${AUDIO_PATH} -f image2 -i ${resultlist} -y ${OUTPUT_PATH}&#x27;;&#xA;  await FFmpegKit.execute(commandToExecute).then((session) async {&#xA;    final returnCode = await session.getReturnCode();&#xA;    final state = await session.getState();&#xA;    if (ReturnCode.isSuccess(returnCode)) {&#xA;      print("ruuning   "&#x2B;state.toString());&#xA;      print("video created " &#x2B; returnCode.toString());&#xA;    } else if (ReturnCode.isCancel(returnCode)) {&#xA;      print("video cancel "  &#x2B; returnCode.toString());&#xA;    } else {&#xA;      print("error " );&#xA;    }&#xA;  });&#xA;}else if (await Permission.storage.isPermanentlyDenied) {&#xA;  openAppSettings();&#xA;}&#xA;</asset></asset></void>

    &#xA;

    }

    &#xA;

  • FFmpeg image to video conversion error : [image2] Opening file for reading

    14 février 2018, par user1690179

    I am running ffmpeg on an AWS Lambda instance. The Lambda function takes an input image and transcodes it into a video segment using ffmpeg :

    ffmpeg -loop 1 -i /tmp/photo-SNRUR7ZS13.jpg -c:v libx264 -t 7.00 -pix_fmt yuv420p -vf scale=1280x720 /tmp/output.mp4

    I am seeing inconsistent behavior where sometimes the output video is shorter than the specified duration. This happens inconsistently to random images. The same exact image sometimes renders correctly, and sometimes is cut short.

    This behavior only happens on Lambda. I am not able to replicate this on my local computer, or on a dedicated EC2 instance with the same environment that runs on lambda.

    I noticed that when the output video is short, the ffmpeg log is different. The main difference are repeated [image2 @ 0x4b11140] Opening '/tmp/photo-2HD2Z3UN3W.jpg' for reading lines. See ffmpeg logs below.

    Normal execution with the correct output video length :

        ffmpeg -loop 1 -i /tmp/photo-SNRUR7ZS13.jpg -c:v libx264 -t 7.00 -pix_fmt yuv420p -vf scale=1280x720 /tmp/video-TMB6RNO0EE.mp4
    
ffmpeg version N-89773-g7fcbebbeaf-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 6.4.0 (Debian 6.4.0-11) 20171206
    
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
    
  libavutil      56.  7.100 / 56.  7.100
    
  libavcodec     58.  9.100 / 58.  9.100
    
  libavformat    58.  3.100 / 58.  3.100
    
  libavdevice    58.  0.100 / 58.  0.100
    
  libavfilter     7. 11.101 /  7. 11.101
    
  libswscale      5.  0.101 /  5.  0.101
    
  libswresample   3.  0.101 /  3.  0.101
    
  libpostproc    55.  0.100 / 55.  0.100
    
Input #0, image2, from '/tmp/photo-SNRUR7ZS13.jpg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: 18703 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 687x860 [SAR 200:200 DAR 687:860], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[swscaler @ 0x5837900] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0x51c2340] using SAR=1477/3287
    
[libx264 @ 0x51c2340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0x51c2340] profile High, level 3.1
    
[libx264 @ 0x51c2340] 264 - core 155 r61 b00bcaf - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=3 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=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
    
Output #0, mp4, to '/tmp/video-TMB6RNO0EE.mp4':
    
  Metadata:
    
    encoder         : Lavf58.3.100
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 6183:13760 DAR 687:860], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc58.9.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
frame=   49 fps=0.0 q=28.0 size=       0kB time=-00:00:00.03 bitrate=N/A speed=N/A    
    
frame=   69 fps= 66 q=28.0 size=       0kB time=00:00:00.76 bitrate=   0.5kbits/s speed=0.728x    
    
frame=   89 fps= 57 q=28.0 size=       0kB time=00:00:01.56 bitrate=   0.2kbits/s speed=0.998x    
    
frame=  109 fps= 53 q=28.0 size=       0kB time=00:00:02.36 bitrate=   0.2kbits/s speed=1.14x    
    
frame=  129 fps= 50 q=28.0 size=       0kB time=00:00:03.16 bitrate=   0.1kbits/s speed=1.22x    
    
frame=  148 fps= 48 q=28.0 size=       0kB time=00:00:03.92 bitrate=   0.1kbits/s speed=1.27x    
    
frame=  168 fps= 47 q=28.0 size=       0kB time=00:00:04.72 bitrate=   0.1kbits/s speed=1.31x    
    
No more output streams to write to, finishing.
    
frame=  175 fps= 39 q=-1.0 Lsize=      94kB time=00:00:06.88 bitrate= 112.2kbits/s speed=1.54x    
    
video:91kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.161261%
    
Input file #0 (/tmp/photo-SNRUR7ZS13.jpg):
    
  Input stream #0:0 (video): 176 packets read (16459168 bytes); 176 frames decoded; 
    
  Total: 176 packets (16459168 bytes) demuxed
    
Output file #0 (/tmp/video-TMB6RNO0EE.mp4):
    
  Output stream #0:0 (video): 175 frames encoded; 175 packets muxed (93507 bytes); 
    
  Total: 175 packets (93507 bytes) muxed
    
[libx264 @ 0x51c2340] frame I:1     Avg QP:14.33  size: 73084
    
[libx264 @ 0x51c2340] frame P:44    Avg QP:14.09  size:   302
    
[libx264 @ 0x51c2340] frame B:130   Avg QP:23.31  size:    50
    
[libx264 @ 0x51c2340] consecutive B-frames:  0.6%  1.1%  0.0% 98.3%
    
[libx264 @ 0x51c2340] mb I  I16..4:  3.3% 84.5% 12.1%
    
[libx264 @ 0x51c2340] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  3.2%  0.1%  0.0%  0.0%  0.0%    skip:96.7%
    
[libx264 @ 0x51c2340] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.4%  0.0%  0.0%  direct: 0.0%  skip:99.6%  L0:31.2% L1:68.8% BI: 0.0%
    
[libx264 @ 0x51c2340] 8x8 transform intra:84.5% inter:98.8%
    
[libx264 @ 0x51c2340] coded y,uvDC,uvAC intra: 95.1% 63.9% 51.6% inter: 0.1% 0.6% 0.0%
    
[libx264 @ 0x51c2340] i16 v,h,dc,p: 26% 21%  4% 49%
    
[libx264 @ 0x51c2340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 27% 21%  3%  5%  6%  6%  4%  9%
    
[libx264 @ 0x51c2340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 36% 10%  4%  7%  5%  6%  2%  6%
    
[libx264 @ 0x51c2340] i8c dc,h,v,p: 51% 29% 16%  4%
    
[libx264 @ 0x51c2340] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x51c2340] ref P L0: 96.5%  0.0%  3.3%  0.2%
    
[libx264 @ 0x51c2340] ref B L0: 42.4% 57.6%
    
[libx264 @ 0x51c2340] ref B L1: 97.0%  3.0%
    
[libx264 @ 0x51c2340] kb/s:106.08

    Log from a short video :

    ffmpeg -framerate 25 -y -loop 1 -i /tmp/photo-2HD2Z3UN3W.jpg -t 15.00 -filter_complex "[0:v]crop=h=ih:w='if(gt(a,16/9),ih*16/9,iw)':y=0:x='if(gt(a,16/9),(ow-iw)/2,0)'[tmp];[tmp]scale=-1:4000,crop=w=iw:h='min(iw*9/16,ih)':x=0:y='0.17*ih-((t/15.00)*min(0.17*ih,(ih-oh)/6))',trim=duration=15.00[tmp1];[tmp1]zoompan=z='if(lte(pzoom,1.0),1.15,max(1.0,pzoom-0.0005))':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=1,setsar=sar=1:1[animated];[animated]fade=out:st=12.00:d=3.00:c=#000000[animated]" -map "[animated]" -pix_fmt yuv420p -s 1280x720 -y /tmp/video-QB1JCDT021.mp4
    
ffmpeg version N-89773-g7fcbebbeaf-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers
    
built with gcc 6.4.0 (Debian 6.4.0-11) 20171206
    
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
    
libavutil 56. 7.100 / 56. 7.100
    
libavcodec 58. 9.100 / 58. 9.100
    
libavformat 58. 3.100 / 58. 3.100
    
libavdevice 58. 0.100 / 58. 0.100
    
libavfilter 7. 11.101 / 7. 11.101
    
libswscale 5. 0.101 / 5. 0.101
    
libswresample 3. 0.101 / 3. 0.101
    
libpostproc 55. 0.100 / 55. 0.100
    
Input #0, image2, from '/tmp/photo-2HD2Z3UN3W.jpg':
    
Duration: 00:00:00.04, start: 0.000000, bitrate: 373617 kb/s
    
Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1936x2592 [SAR 72:72 DAR 121:162], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
Stream #0:0 (mjpeg) -> crop
    
fade -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
[swscaler @ 0x4d63b40] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 0x4df7340] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 0x50e97c0] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 0x50e97c0] Warning: data is not aligned! This can lead to a speed loss
    
[libx264 @ 0x4b17480] using SAR=1/1
    
[libx264 @ 0x4b17480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0x4b17480] profile High, level 3.1
    
[libx264 @ 0x4b17480] 264 - core 155 r61 b00bcaf - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=3 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=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
    
Output #0, mp4, to '/tmp/video-QB1JCDT021.mp4':
    
Metadata:
    
encoder : Lavf58.3.100
    
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
Metadata:
    
encoder : Lavc58.9.100 libx264
    
Side data:
    
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
[swscaler @ 0x5bd0380] deprecated pixel format used, make sure you did set range correctly
    
debug=1
    
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
    
[image2 @ 0x4b11140] Opening '/tmp/photo-2HD2Z3UN3W.jpg' for reading
    
[AVIOContext @ 0x4b6ecc0] Statistics: 1868086 bytes read, 0 seeks
    
[mjpeg @ 0x4b14940] marker=d8 avail_size_in_buf=1868084
    
[mjpeg @ 0x4b14940] marker parser used 0 bytes (0 bits)
    
[mjpeg @ 0x4b14940] marker=e0 avail_size_in_buf=1868082
    
[mjpeg @ 0x4b14940] marker parser used 16 bytes (128 bits)
    
[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1868064
    
[mjpeg @ 0x4b14940] index=0
    
[mjpeg @ 0x4b14940] qscale[0]: 0
    
[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)
    
[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1867995
    
[mjpeg @ 0x4b14940] index=1
    
[mjpeg @ 0x4b14940] qscale[1]: 1
    
[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)
    
[mjpeg @ 0x4b14940] marker=c0 avail_size_in_buf=1867926
    
[mjpeg @ 0x4b14940] sof0: picture: 1936x2592
    
[mjpeg @ 0x4b14940] component 0 1:1 id: 0 quant:0
    
[mjpeg @ 0x4b14940] component 1 1:1 id: 1 quant:1
    
[mjpeg @ 0x4b14940] component 2 1:1 id: 2 quant:1
    
[mjpeg @ 0x4b14940] pix fmt id 11111100
    
[mjpeg @ 0x4b14940] marker parser used 17 bytes (136 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867907
    
[mjpeg @ 0x4b14940] class=0 index=0 nb_codes=11
    
[mjpeg @ 0x4b14940] marker parser used 30 bytes (240 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867875
    
[mjpeg @ 0x4b14940] class=1 index=0 nb_codes=242
    
[mjpeg @ 0x4b14940] marker parser used 82 bytes (656 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867791
    
[mjpeg @ 0x4b14940] class=0 index=1 nb_codes=8
    
[mjpeg @ 0x4b14940] marker parser used 27 bytes (216 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867762
    
[mjpeg @ 0x4b14940] class=1 index=1 nb_codes=241
    
[mjpeg @ 0x4b14940] marker parser used 51 bytes (408 bits)
    
[mjpeg @ 0x4b14940] escaping removed 7149 bytes
    
[mjpeg @ 0x4b14940] marker=da avail_size_in_buf=1867709
    
[mjpeg @ 0x4b14940] component: 0
    
[mjpeg @ 0x4b14940] component: 1
    
[mjpeg @ 0x4b14940] component: 2
    
[mjpeg @ 0x4b14940] marker parser used 1860559 bytes (14884468 bits)
    
[mjpeg @ 0x4b14940] marker=d9 avail_size_in_buf=0
    
[mjpeg @ 0x4b14940] decode frame unused 0 bytes
    
[swscaler @ 0x5bd42c0] deprecated pixel format used, make sure you did set range correctly
    
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
    
[image2 @ 0x4b11140] Opening '/tmp/photo-2HD2Z3UN3W.jpg' for reading
    
[AVIOContext @ 0x4b6ecc0] Statistics: 1868086 bytes read, 0 seeks
    
[mjpeg @ 0x4b14940] marker=d8 avail_size_in_buf=1868084
    
[mjpeg @ 0x4b14940] marker parser used 0 bytes (0 bits)
    
[mjpeg @ 0x4b14940] marker=e0 avail_size_in_buf=1868082
    
[mjpeg @ 0x4b14940] marker parser used 16 bytes (128 bits)
    
[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1868064
    
[mjpeg @ 0x4b14940] index=0
    
[mjpeg @ 0x4b14940] qscale[0]: 0
    
[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)
    
[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1867995
    
[mjpeg @ 0x4b14940] index=1
    
[mjpeg @ 0x4b14940] qscale[1]: 1
    
[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)
    
[mjpeg @ 0x4b14940] marker=c0 avail_size_in_buf=1867926
    
[mjpeg @ 0x4b14940] sof0: picture: 1936x2592
    
[mjpeg @ 0x4b14940] component 0 1:1 id: 0 quant:0
    
[mjpeg @ 0x4b14940] component 1 1:1 id: 1 quant:1
    
[mjpeg @ 0x4b14940] component 2 1:1 id: 2 quant:1
    
[mjpeg @ 0x4b14940] pix fmt id 11111100
    
[mjpeg @ 0x4b14940] marker parser used 17 bytes (136 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867907
    
[mjpeg @ 0x4b14940] class=0 index=0 nb_codes=11
    
[mjpeg @ 0x4b14940] marker parser used 30 bytes (240 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867875
    
[mjpeg @ 0x4b14940] class=1 index=0 nb_codes=242
    
[mjpeg @ 0x4b14940] marker parser used 82 bytes (656 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867791
    
[mjpeg @ 0x4b14940] class=0 index=1 nb_codes=8
    
[mjpeg @ 0x4b14940] marker parser used 27 bytes (216 bits)
    
[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867762
    
[mjpeg @ 0x4b14940] class=1 index=1 nb_codes=241
    
[mjpeg @ 0x4b14940] marker parser used 51 bytes (408 bits)
    
[mjpeg @ 0x4b14940] escaping removed 7149 bytes
    
[mjpeg @ 0x4b14940] marker=da avail_size_in_buf=1867709
    
[mjpeg @ 0x4b14940] component: 0
    
[mjpeg @ 0x4b14940] component: 1
    
[mjpeg @ 0x4b14940] component: 2
    
[mjpeg @ 0x4b14940] marker parser used 1860559 bytes (14884468 bits)
    
[mjpeg @ 0x4b14940] marker=d9 avail_size_in_buf=0
    
[mjpeg @ 0x4b14940] decode frame unused 0 bytes
    
[swscaler @ 0x5bd8200] deprecated pixel format used, make sure you did set range correctly
    
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
    
...
    
...
    
...

    As requested, here is a link to the full log. In this log - ffmpeg renders only 323 out of 375 frames.

    The Opening '/tmp/photo-2HD2Z3UN3W.jpg' segment repeats many many times until it finally renders out a short video. Does anyone have insight into why it keeps opening the image file ? This must have something to do with the underlying issue.

  • why it is taking a lot of time to convert image to video in ffmpeg ?

    20 avril 2021, par al pacino

    Below is a snippet of code i am using to convert images into videos but It is taking around 3 minutes to convert image to 5 second video.&#xA;If I run the command on Image present on a directory then it converts images to videos very swiftly. but i need to use try except to catch ConnectionError..&#xA;can anyone tell what I am doing wrong ?

    &#xA;

    video = []&#xA;video_list = []&#xA;for video in videos:&#xA;    try:&#xA;        r = requests.get(video, stream=True)&#xA;        print(r.status_code)&#xA;        if not r.status_code == 200:&#xA;            message = "broken url process could not be completed"&#xA;            return message&#xA;        if r.status_code == 200:&#xA;            if video.endswith(".jpg") or video.endswith(".png") or video.endswith(".jpeg"):&#xA;                filename = str(uuid.uuid4())&#xA;                url2 = download_path &#x2B; filename &#x2B;".webm"&#xA;                #cmd = "ffmpeg -loop 1 -i &#x27;{}&#x27; -c:v libx264 -t 5 -pix_fmt yuv420p -vf scale={}:{} ".format(video, width, height)&#x2B; url2&#xA;                cmd = "ffmpeg -loop 1 -i &#x27;{}&#x27; -t 5 -vf scale={}:{} ".format(video, width, height) &#x2B; url2&#xA;                os.system(cmd)&#xA;                path_remover(video)&#xA;                video_list.append(url2)&#xA;            else:&#xA;                video_list.append(video)&#xA;    except ConnectionError:&#xA;        for i in video_list:&#xA;            path_remover(i)&#xA;        message = "broken url process could not be completed"&#xA;        return message&#xA;

    &#xA;

    full log after running the command with online url :

    &#xA;

    ffmpeg -loop 1 -i &#x27;https://cdn.pixabay.com/photo/2020/10/23/12/03/arch-5678549__340.jpg&#x27; -t 5 -vf scale=1280:780 output.mp4 &#xA;&#xA;&#xA;ffmpeg version n4.3.1 Copyright (c) 2000-2020 the FFmpeg developers&#xA;  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)&#xA;  configuration: --prefix= --prefix=/usr --disable-debug --disable-doc --disable-static --enable-cuda --enable-cuda-sdk --enable-cuvid --enable-libdrm --enable-ffplay --enable-gnutls --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libnpp --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopus --enable-libpulse --enable-sdl2 --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxvid --enable-nonfree --enable-nvenc --enable-omx --enable-openal --enable-opencl --enable-runtime-cpudetect --enable-shared --enable-vaapi --enable-vdpau --enable-version3 --enable-xlib&#xA;  libavutil      56. 51.100 / 56. 51.100&#xA;  libavcodec     58. 91.100 / 58. 91.100&#xA;  libavformat    58. 45.100 / 58. 45.100&#xA;  libavdevice    58. 10.100 / 58. 10.100&#xA;  libavfilter     7. 85.100 /  7. 85.100&#xA;  libswscale      5.  7.100 /  5.  7.100&#xA;  libswresample   3.  7.100 /  3.  7.100&#xA;  libpostproc    55.  7.100 / 55.  7.100&#xA;Input #0, image2, from &#x27;https://cdn.pixabay.com/photo/2021/04/17/18/26/woman-6186493__340.jpg&#x27;:&#xA;  Duration: 00:00:00.04, start: 0.000000, bitrate: 5538 kb/s&#xA;    Stream #0:0: Video: mjpeg (Progressive), yuvj420p(pc, bt470bg/unknown/unknown), 511x340 [SAR 1:1 DAR 511:340], 25 fps, 25 tbr, 25 tbn, 25 tbc&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))&#xA;Press [q] to stop, [?] for help&#xA;[swscaler @ 0x5580ac8e7c40] deprecated pixel format used, make sure you did set range correctly&#xA;[libx264 @ 0x5580ac186b40] using SAR=1034/1129&#xA;[libx264 @ 0x5580ac186b40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512&#xA;[libx264 @ 0x5580ac186b40] profile High, level 3.2&#xA;[libx264 @ 0x5580ac186b40] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=12 lookahead_threads=2 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&#xA;Output #0, mp4, to &#x27;output.mp4&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf58.45.100&#xA;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 1280x780 [SAR 19929:21760 DAR 511:340], q=-1--1, 25 fps, 12800 tbn, 25 tbc&#xA;    Metadata:&#xA;      encoder         : Lavc58.91.100 libx264&#xA;    Side data:&#xA;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&#xA;frame=  100 fps=0.0 q=28.0 size=       0kB time=00:00:01.64 bitrate=   0.2kbits/frame=  125 fps=0.0 q=-1.0 Lsize=      90kB time=00:00:04.88 bitrate= 151.7kbits/s speed=6.79x    &#xA;video:88kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.618829%&#xA;[libx264 @ 0x5580ac186b40] frame I:1     Avg QP:16.31  size: 75247&#xA;[libx264 @ 0x5580ac186b40] frame P:31    Avg QP:16.13  size:   314&#xA;[libx264 @ 0x5580ac186b40] frame B:93    Avg QP:31.33  size:    49&#xA;[libx264 @ 0x5580ac186b40] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%&#xA;[libx264 @ 0x5580ac186b40] mb I  I16..4: 10.6% 77.6% 11.8%&#xA;[libx264 @ 0x5580ac186b40] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  2.5%  0.2%  0.2%  0.0%  0.0%    skip:97.2%&#xA;[libx264 @ 0x5580ac186b40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.4%  0.0%  0.0%  direct: 0.0%  skip:99.6%  L0: 8.3% L1:91.7% BI: 0.0%&#xA;[libx264 @ 0x5580ac186b40] 8x8 transform intra:77.5% inter:98.7%&#xA;[libx264 @ 0x5580ac186b40] coded y,uvDC,uvAC intra: 88.4% 95.3% 79.5% inter: 0.1% 0.5% 0.0%&#xA;[libx264 @ 0x5580ac186b40] i16 v,h,dc,p:  2%  3%  0% 95%&#xA;[libx264 @ 0x5580ac186b40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 18%  7%  6% 11% 10% 10%  8%  8%&#xA;[libx264 @ 0x5580ac186b40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 18%  7%  5% 16% 11%  9%  6%  4%&#xA;[libx264 @ 0x5580ac186b40] i8c dc,h,v,p: 33% 21% 22% 24%&#xA;[libx264 @ 0x5580ac186b40] Weighted P-Frames: Y:0.0% UV:0.0%&#xA;[libx264 @ 0x5580ac186b40] ref P L0: 85.7%  0.1% 13.2%  1.0%&#xA;[libx264 @ 0x5580ac186b40] ref B L0: 53.6% 46.4%&#xA;[libx264 @ 0x5580ac186b40] ref B L1: 92.8%  7.2%&#xA;[libx264 @ 0x5580ac186b40] kb/s:143.20&#xA;aman@aman:~/Desktop/a$ ffmpeg -loop 1 -i &#x27;https://cdn.pixabay.com/photo/2021/04/17/18/26/woman-6186493__340.jpg&#x27; -t 5 -vf scale=1280:780 output.webm&#xA;ffmpeg version n4.3.1 Copyright (c) 2000-2020 the FFmpeg developers&#xA;  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)&#xA;  configuration: --prefix= --prefix=/usr --disable-debug --disable-doc --disable-static --enable-cuda --enable-cuda-sdk --enable-cuvid --enable-libdrm --enable-ffplay --enable-gnutls --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libnpp --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopus --enable-libpulse --enable-sdl2 --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxvid --enable-nonfree --enable-nvenc --enable-omx --enable-openal --enable-opencl --enable-runtime-cpudetect --enable-shared --enable-vaapi --enable-vdpau --enable-version3 --enable-xlib&#xA;  libavutil      56. 51.100 / 56. 51.100&#xA;  libavcodec     58. 91.100 / 58. 91.100&#xA;  libavformat    58. 45.100 / 58. 45.100&#xA;  libavdevice    58. 10.100 / 58. 10.100&#xA;  libavfilter     7. 85.100 /  7. 85.100&#xA;  libswscale      5.  7.100 /  5.  7.100&#xA;  libswresample   3.  7.100 /  3.  7.100&#xA;  libpostproc    55.  7.100 / 55.  7.100&#xA;Input #0, image2, from &#x27;https://cdn.pixabay.com/photo/2021/04/17/18/26/woman-6186493__340.jpg&#x27;:&#xA;  Duration: 00:00:00.04, start: 0.000000, bitrate: 5538 kb/s&#xA;    Stream #0:0: Video: mjpeg (Progressive), yuvj420p(pc, bt470bg/unknown/unknown), 511x340 [SAR 1:1 DAR 511:340], 25 fps, 25 tbr, 25 tbn, 25 tbc&#xA;File &#x27;output.webm&#x27; already exists. Overwrite? [y/N] y&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (mjpeg (native) -> vp9 (libvpx-vp9))&#xA;Press [q] to stop, [?] for help&#xA;[swscaler @ 0x5630553879c0] deprecated pixel format used, make sure you did set range correctly&#xA;[libvpx-vp9 @ 0x563054cd2500] v1.7.0&#xA;[libvpx-vp9 @ 0x563054cd2500] Neither bitrate nor constrained quality specified, using default CRF of 32&#xA;Output #0, webm, to &#x27;output.webm&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf58.45.100&#xA;    Stream #0:0: Video: vp9 (libvpx-vp9), yuv420p, 1280x780 [SAR 19929:21760 DAR 511:340], q=-1--1, 25 fps, 1k tbn, 25 tbc&#xA;    Metadata:&#xA;      encoder         : Lavc58.91.100 libvpx-vp9&#xA;    Side data:&#xA;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&#xA;frame=   57 fps=0.0 q=0.0 size=       1kB time=00:00:01.28 bitrate=   3.3kbits/sframe=  103 fps=102 q=0.0 size=       1kB time=00:00:03.12 bitrate=   1.3kbits/sframe=  125 fps= 85 q=0.0 Lsize=      51kB time=00:00:04.96 bitrate=  84.0kbits/s speed=3.37x    &#xA;video:50kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.571023%&#xA;

    &#xA;

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