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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

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Sur d’autres sites (9918)

  • FFmpeg in Python File already exists error

    24 septembre 2018, par Abdul Rehman

    I’m working on a project using python(3.6) and Django(2.0) in which i’m converting a video to mp4 if it’s in any other formate.

    Here’s my code :

    from views.py :

    def generate_thumbnail(filename, thumb_name):
    
    print('func called')
    
    print(filename)
    
    video_input_path = os.path.join(filename)
    
    img_output_path = os.path.join(thumb_name)
    
    subprocess.call(['ffmpeg', '-i', video_input_path, '-ss', '00:00:00.000', 'vframes', '1', img_output_path])
    

    

    
def convert_to_mp4(video_name, only_name):
    
    os.popen(
    
        "ffmpeg -i '{input}' -ac 2 -b:v 2000k -c:a aac -c:v libx264 -b:a 160k -vprofile high -bf 0 -strict experimental -f mp4 '{output}.mp4'".format(
    
            input=video_name, output=only_name))
    
    return True
    

    

    
def perform_upload(video, thumbnail):
    
    print('vdieo name is: {}'.format(video))
    
    servise = discovery.build('storage', 'v1', credentials=credentials)
    
    bucket_name = 'test_bucket004'
    
    print('Uploading the video...')
    
    media = MediaFileUpload(video, chunksize=4149304, mimetype='video/mp4',
    
                            resumable=True)
    
    req = servise.objects().insert(
    
        bucket=bucket_name,
    
        name=str(video),
    
        media_body=media,
    
        body={"cacheControl": "public,max-age=31536000"},
    
        predefinedAcl='publicRead'
    
    )
    
    resp = None
    
    while resp is None:
    
        status, resp = req.next_chunk()
    
    print(resp)
    
    video_url = 'http://storage.googleapis.com/' + bucket_name + '/' + str(video)
    

    
    print('Uploading your thumbnail...')
    
    media = MediaFileUpload(thumbnail, chunksize=4149304, mimetype='image/jpeg',
    
                            resumable=True)
    
    req = servise.objects().insert(
    
        bucket=bucket_name,
    
        name=str(thumbnail),
    
        media_body=media,
    
        body={"cacheControl": "public,max-age=31536000"},
    
        predefinedAcl='publicRead'
    
    )
    
    resp = None
    
    while resp is None:
    
        status, resp = req.next_chunk()
    
    print(resp)
    
    thumb_url = 'https://storage.googleapis.com/' + bucket_name + '/' + str(thumbnail)
    

    
    return video_url, thumb_url
    

    

    
class VideoConverter(generics.ListCreateAPIView):
    
    def get(self, request, *args, **kwargs):
    
        return HttpResponse('Get request', status=200)
    

    
    def post(self, request, *args, **kwargs):
    
        serializer = VideoConverterSerializer(data=self.request.data)
    
        validation = serializer.is_valid()
    
        print(serializer.errors)
    
        if validation is True:
    
            url = request.POST.get('video_url')
    
            filename = url.split('/')
    
            filename = filename[-1]
    
            print(filename)
    
            ext = filename.split('.')
    
            print(ext[-1])
    
            only_name = ext[0]
    
            urllib.request.urlretrieve(url, filename)
    
            generate_thumbnail(filename, only_name + '_thumbnail.jpg')
    
            if ext == 'mp4':
    
                videourl, thumb_url = perform_upload(filename, only_name + '_thumbnail.jpg')
    
            else:
    
                conversion = convert_to_mp4(filename, only_name)
    
                if conversion is True:
    
                    videourl, thumb_url = perform_upload(only_name + '.mp4', only_name + '_thumbnail.jpg')
    

    
            return HttpResponse('Video url is: {}\n \nThumbnail url is: {}'.format(videourl, thumb_url))
    
        else:
    
            return HttpResponse('Not a valid request')

    But when I pass it a video of Mp4 format it returns an error in the IDE console like this :

    ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    built with Apple LLVM version 10.0.0 (clang-1000.10.43.1)
    configuration : —prefix=/usr/local/Cellar/ffmpeg/4.0.2 —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 ’PHP_GCS.mp4’ :
    Metadata :
    major_brand : mp42
    minor_version : 1
    compatible_brands : mp41mp42isom
    creation_time : 2018-08-03T13:08:04.000000Z
    Duration : 00:01:21.40, start : 0.000000, bitrate : 1584 kb/s
    Stream #0:0(und) : Video : h264 (Main) (avc1 / 0x31637661), yuv420p, 1918x1078 [SAR 1:1 DAR 137:77], 1581 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
    Metadata :
    creation_time : 2018-08-03T13:08:04.000000Z
    handler_name : Core Media Video

    File ’PHP_GCS.mp4’ already exists. Overwrite ? [y/N]

    and stop the execution here until I press the enter button.I’m really confused why this is happining because when the video is already mp4 i’m not using ffmpeg but only for thumbnail generaton.

    What can be wrong here ?

    Thanks in advance !

  • Video moves sideways when captured raw from camera and piped into ffplay

    21 septembre 2018, par peetonn

    I’m trying to capture video from the camera using ffmpeg (macOS 10.12) and pipe it for preview into ffplay using rawvideo and -v copy options :

    ffmpeg -f avfoundation -pixel_format 0rgb -framerate 25 -video_size 1280x720 -i "0" -map 0:v -c copy -f rawvideo - | ffplay -f rawvideo -video_size 1280x720 -pixel_format 0rgb -i -

    Video captures just fine, however, it constantly moves sideways (see screenshot attached). What might the issue here ?

    enter image description here

    UPDATE Full ffmpeg log output :

    $ ffmpeg -f avfoundation -pixel_format 0rgb -framerate 25 -video_size 1280x720 -i "0" -map 0:v -c copy -f rawvideo - | ffplay -f rawvideo -video_size 1280x720 -pixel_format 0rgb -i -
    
ffmpeg version 4.0.2ffplay version 4.0.2 Copyright © 2003-2018 the FFmpeg developers Copyright © 2000-2018 the FFmpeg developers
    

    
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
    
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-ffplay --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-ffplay --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libpostproc    55.  1.100 / 55.  1.100
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
2018-09-20 09:33:28.013 ffmpeg[45781:16452887] Error loading /Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn:  dlopen(/Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn, 262): no suitable image found.  Did find:
    
    /Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn: mach-o, but wrong architecture
    
    /Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn: mach-o, but wrong architecture
    
2018-09-20 09:33:28.013 ffmpeg[45781:16452887] Cannot find function pointer New_SHP_PlugIn for factory 834FC054-C1CC-11D6-BD01-00039315CD46 in CFBundle/CFPlugIn 0x7fe63b506d00 Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin> (bundle, not loaded)
    
2018-09-20 09:33:28.069 ffplay[45782:16452888] Error loading /Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn:  dlopen(/Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn, 262): no suitable image found.  Did find:
    
    /Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn: mach-o, but wrong architecture
    
    /Library/Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin/Contents/MacOS/SeratoVirtualAudioPlugIn: mach-o, but wrong architecture
    
2018-09-20 09:33:28.069 ffplay[45782:16452888] Cannot find function pointer New_SHP_PlugIn for factory 834FC054-C1CC-11D6-BD01-00039315CD46 in CFBundle/CFPlugIn 0x7f93f3c13020 Audio/Plug-Ins/HAL/SeratoVirtualAudioPlugIn.plugin> (bundle, not loaded)
    
[avfoundation @ 0x7fe63c000000] Stream #0: not enough frames to estimate rate; consider increasing probesize
    
Input #0, avfoundation, from '0':
    
  Duration: N/A, start: 1054.178167, bitrate: N/A
    
    Stream #0:0: Video: rawvideo ([0]RGB / 0x42475200), 0rgb, 1280x720, 1000k tbr, 1000k tbn, 1000k tbc
    
Output #0, rawvideo, to 'pipe:':   0KB vq=    0KB sq=    0B f=0/0   
    
  Metadata:
    
    encoder         : Lavf58.12.100
    
    Stream #0:0: Video: rawvideo ([0]RGB / 0x42475200), 0rgb, 1280x720, q=2-31, 1000k tbr, 1000k tbn, 1000k tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 ©
    
Press [q] to stop, [?] for help
    
Input #0, rawvideo, from 'pipe:':
    
  Duration: N/A, start: 0.000000, bitrate: 737280 kb/s
    
    Stream #0:0: Video: rawvideo ([0]RGB / 0x42475200), 0rgb, 1280x720, 737280 kb/s, 25 tbr, 25 tbn, 25 tbc
    
frame=   16 fps=0.0 q=-1.0 size=   57600kB time=00:00:00.60 bitrate=786437.5kbits/s speed=1.frame=   29 fps= 28 q=-1.0 size=  104401kB time=00:00:01.12 bitrate=763617.4kbits/s speed=1.frame=   42 fps= 27 q=-1.0 size=  151201kB time=00:00:01.64 bitrate=755268.5kbits/s speed=1.frame=   55 fps= 26 q=-1.0 size=  198002kB time=00:00:02.16 bitrate=750939.5kbits/s speed=1.frame=   68 fps= 26 q=-1.0 size=  244802kB time=00:00:02.68 bitrate=748290.4kbits/s speed=1.av_interleaved_write_frame(): Broken pipe=    0KB sq=    0B f=0/0   
    
Error writing trailer of pipe:: Broken pipe
    
frame=   69 fps= 26 q=-1.0 Lsize=  247650kB time=00:00:02.72 bitrate=745863.6kbits/s speed=1.01x    
    
video:248402kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
    
Exiting normally, received signal 2.

  • ffmpeg problem Could not write header for output file #0 (incorrect codec parameters ?) : Invalid data found when processing input

    2 octobre 2018, par Yair Villar

    im trying to grab a http streaming and restream it

    ffmpeg -re -i http://192.168.253.19:8000/play/0a0 -acodec copy -f rtsp rtsp://192.168.253.19:8000/test

    and the response i get is :

    fmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --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
    
[mpeg2video @ 0x7fc6ca801e00] Invalid frame dimensions 0x0.
    
    Last message repeated 6 times
    
Input #0, mpegts, from 'http://192.168.253.19:8000/play/0a0':
    
  Duration: N/A, start: 83102.371922, bitrate: 15192 kb/s
    
  Program 306
    
    Metadata:
    
      service_name    :
    
      service_provider:
    
    Stream #0:0[0x8a2]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bottom first), 704x480 [SAR 10:11 DAR 4:3], 15000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    
    Stream #0:1[0xc93]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, fltp, 128 kb/s
    
    Stream #0:2[0xc94]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, fltp, 64 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg2video (native) -> mpeg4 (native))
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
    
Error initializing output stream 0:0 --
    
Conversion failed!

    I can’t seem to figure out what the problem is, i am passing this to node-fluent-ffmpeg latter on and pushing all to an astra server

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