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  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

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  • .mp4 file is not playing in Django template and FireFox or Chrome

    9 février 2021, par Himanshu sharma

    I can save live RTSP video stream in .mp4 but when I run saved .mp4 video in Django template or Firefox or Chrome browser or VLC, video is not playing in ubuntu.
I think I have a compatible issue problem in .mp4. Furthermore, I want to show and play .mp4 saved file in Django.

    


    I have a two IP camera which provides a live RTSP video stream.

    


    self.input_stream---> rtsp://admin:Admin123@192.168.1.208/user=admin_password=Admin123_channel=0channel_number_stream=0.sdp

self.input_stream---> rtsp://Admin:@192.168.1.209/user=Admin_password=_channel=0channel_number_stream=0.sdp


    


    Python 3.8.5 (default, Jul 28 2020, 12:59:40)
[GCC 9.3.0] on linux,

    


    Django==3.1.2

    


    I am implementing this code in difference Ubuntu PCs

    


    Ubuntu = 18.04 and 20.04

    


    opencv-contrib-python==4.4.0.46

    


    opencv-python==4.4.0.46

    


    ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)

    


    I had tried different fourcc to save .mp4 but below fourcc work perfectly in Ubuntu.

    


    fourcc = cv2.VideoWriter_fourcc(*'mp4v')

    


    class ffmpegStratStreaming(threading.Thread):
    def __init__(self, input_stream=None, output_stream=None, camera=None, *args, **kwargs):
        self.input_stream = input_stream
        self.output_stream = output_stream
        self.camera = camera
        super().__init__(*args, **kwargs)

    def run(self):
        try:vs = cv2.VideoCapture(self.input_stream)
            fps_rate = int(vs.get(cv2.CAP_PROP_FPS))
            ##############################
            ##############################  
            # ~ print('fps rate-->', fps_rate,'camera id-->' ,str(self.camera.id))
            # ~ vs.set(cv2.CAP_PROP_POS_FRAMES,50)  #Set the frame number to be obtained
            # ~ print('fps rate-->', fps_rate,'camera id-->' ,str(self.camera.id),' ####### ')
            
            # initialize the video writer (we'll instantiate later if need be)
            writer = None

            # initialize the frame dimensions (we'll set them as soon as we read
            # the first frame from the video)
            W = None
            H = None    
            # start the frames per second throughput estimator
            fps = FPS().start()

            #  saving frame in avi video format
            video_file_count = 0
            start_time = time.time()

            while True:
                try:
                    # grab the next frame and handle if we are reading from either
                    # VideoCapture or VideoStream
                    
                    frame_init = vs.read()
                    frame = frame_init[1] if self.input_stream else frame_init
                    
                    # if frame is can't read correctly ret is False
                    while frame_init[0] == False:
                        print("Can't receive frame. Retrying ...")
                        vs.release()
                        vs = cv2.VideoCapture(self.input_stream)                                                                              
                        frame_init = vs.read()
                        frame = frame_init[1] if self.input_stream else frame_init

                    # if we are viewing a video and we did not grab a frame then we
                    # have reached the end of the video
                    if self.input_stream is not None and frame is None:
                        break

                    # resize the frame to have a maximum width of 500 pixels (the
                    # less data we have, the faster we can process it), then convert
                    # the frame from BGR to RGB for dlib
                    frame = imutils.resize(frame, width=500)        
                    
                    
                    #<---------------------- Start of  writing a video to disk ------------------------->                   
                    minute = 1
                    second  = 60
                    minite_to_save_video = int(minute) * int(second)

                
                    # if we are supposed to be writing a video to disk, initialize
                    if time.time() - start_time >= minite_to_save_video or  video_file_count == 0 :
                        ## where H = heigth, W = width, C = channel 
                        H, W, C = frame.shape
                        video_file_count += 1
                        start_time = time.time()
                        output_save_directory = self.output_stream+str(video_file_count)+'.mp4'
                        # fourcc = cv2.VideoWriter_fourcc(*"MJPG")
                        # fourcc = cv2.VideoWriter_fourcc(*'XVID')
                        # fourcc = cv2.VideoWriter_fourcc(*'X264')
                        # fourcc = cv2.VideoWriter_fourcc(*'MP4V')

                        
                        # fourcc = cv2.VideoWriter_fourcc(*'FMP4')

                        # fourcc = cv2.VideoWriter_fourcc(*'avc1')


                        # fourcc = cv2.VideoWriter_fourcc('M','J','P','G')

                        fourcc = cv2.VideoWriter_fourcc(*'mp4v')
                        # fourcc = cv2.VideoWriter_fourcc(*'mp3v')
                        # fourcc = 0x00000021
                        print(fourcc, type(fourcc),'ffffffff')
                        # a = int(vs.get(cv2.CAP_PROP_FOURCC))
                        # print(a,type(a),'  aaaaaaaa' )

                        # writer = skvideo.io.FFmpegWriter(output_save_directory, outputdict={
                        #   '-vcodec': 'libx264', '-b': '300000000'
                        # })
                        
                        # writer = skvideo.io.FFmpegWriter(self.output_stream, outputdict={'-r': '120', '-c:v': 'libx264', '-crf': '0', '-preset': 'ultrafast', '-pix_fmt': 'yuv444p'})
                        
                        writer = cv2.VideoWriter(output_save_directory, fourcc ,20.0,( int(W), int(H) ), True)
                        
                        
                        # ~ The cv2.VideoWriter requires five parameters:    

                    # check to see if we should write the frame to disk
                    if writer is not None:                          
                        try:
                            writer.write(frame)
                        except Exception as e:
                            print('Error in writing video output---> ', e)
                            
                    #<---------------------- end of  writing a video to disk ------------------------->

                    # show the output frame
                    # cv2.imshow("Frame", frame)
                    # key = cv2.waitKey(1) & 0xFF

                    # if the `q` key was pressed, break from the loop
                    # if key == ord("q"):
                    #   break

                    # increment the total number of frames processed thus far and
                    # then update the FPS counter
                    totalFrames += 1
                    fps.update()
                except Exception as e:
                    print('Error in main while loop--> ', e)

            # stop the timer and display FPS information
            fps.stop()

            # check to see if we need to release the video writer pointer
            # if writer is not None:
            #   writer.release()

            # if we are not using a video file, stop the camera video stream
            # if not self.input_stream:
            #   vs.stop()

            # otherwise, release the video file pointer
            # else:
            #   vs.release()

            # close any open windows
            # cv2.destroyAllWindows()
        except Exception as e:
            print(e, '333333333333333333333333333')


    


    My Django template code

    


    {% block main %}&#xA;<div class="row">&#xA;  {% if folders|length == 0 %}&#xA;    <div class="col-md-12 text-center">&#xA;      <h6 class="card-title">There are no files in this directory.</h6>&#xA;    </div>&#xA;  {% else %}&#xA;    {% for folder in folders %}&#xA;      <div class="col-md-3 text-center">&#xA;          <div class="card-block">&#xA;            <video class="video-js vjs-fluid vjs-default-skin" controls="controls" preload="auto" muted="muted" data-setup="&#x27;{" true="true"></video>&#xA;                <source src="{% get_media_prefix %}camera-feed/video-saved/{{pk}}/{{parent}}/{{folder}}" type="video/mp4">&#xA;            &#xA;            <h6 class="card-title">{{folder}}</h6>&#xA;          </source></div>&#xA;      </div>&#xA;    {% endfor %}&#xA;  {% endif %}&#xA;</div>&#xA;{% endblock %}&#xA;

    &#xA;

    Function in view.py to see saved .mp4 video in Django template. Video is saved at local folder.

    &#xA;

    def CameraVideos(request, pk, folder):&#xA;    dirpath = settings.MEDIA_ROOT &#x2B; &#x27;/camera-feed/video-saved/&#x27; &#x2B; str(pk) &#x2B; &#x27;/&#x27; &#x2B; folder&#xA;    folders = sorted(Path(dirpath).iterdir(), key=os.path.getmtime)&#xA;    data = []&#xA;    for file in folders:&#xA;        if not file.name.startswith(&#x27;.&#x27;):&#xA;            data.append(file.name)&#xA;    return render(request, "home/camera_video.html", {&#x27;folders&#x27;: data, &#x27;pk&#x27;: pk, &#x27;parent&#x27;: folder})&#xA;

    &#xA;

  • When I append a silent audio (mp3) to an existing list of audio it garbles the final audio ?

    6 février 2020, par Marie

    After several hours I have narrowed down the issue with the garbled audio to be the 2-seconds silence audio mp3 I am appending (I think I had produced it once with Wavelab)

    However, I tried using ffmpeg according to a post to produce a similar 2 seconds audio but it too will corrupt/garble/chop voice in the final concatenation of audio files.

    ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t 2 -q:a 9 -acodec libmp3lame SILENCE_2sec.MP3

    I typically will have several audio files to concatenate together but for simplicity I have able to narrow it to a couple of files simplifying to the following script. A simple Windows batch file you should be able to use and reproduce the issue at your end.

    rem 
    
rem  
    
SET EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"
    

    
SET ROOTPATH=.\
    

    
SET IN_FILE="%ROOTPATH%MyList.txt"
    

    
ECHO file '%ROOTPATH%HELLO.mp3' > MyList.txt
    
ECHO file 'SILENCE_2sec.MP3' >> MyList.txt
    

    
SET OPTIONS= -f concat -safe 0 -i  %IN_FILE%  -c copy -y
    

    
SET OUT_FILE="%ROOTPATH%CONCATENATED_AUDIO_2.MP3"
    

    
SET INFO_FILE="INFO.TXT"
    

    
%EXE% %OPTIONS%  %OUT_FILE% 1> %INFO_FILE% 2>&amp;1 
    

    
ECHO ======================== >> %INFO_FILE%
    
ECHO IN_FILE=%IN_FILE%  >> %INFO_FILE% 
    
ECHO EXE=%EXE%  >> %INFO_FILE% 
    
ECHO OPTIONS=%OPTIONS%  >> %INFO_FILE% 
    
ECHO ======================== >> %INFO_FILE%

    Here is the console info output from the ffmpeg, let me know if you need other output include ones from ffprobe

    ffmpeg version git-2020-01-10-3d894db Copyright (c) 2000-2020 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20191125
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
    
  libavutil      56. 38.100 / 56. 38.100
    
  libavcodec     58. 65.103 / 58. 65.103
    
  libavformat    58. 35.101 / 58. 35.101
    
  libavdevice    58.  9.103 / 58.  9.103
    
  libavfilter     7. 70.101 /  7. 70.101
    
  libswscale      5.  6.100 /  5.  6.100
    
  libswresample   3.  6.100 /  3.  6.100
    
  libpostproc    55.  6.100 / 55.  6.100
    
[mp3 @ 000000000036af80] Estimating duration from bitrate, this may be inaccurate
    
Input #0, concat, from '.\MyList.txt':
    
  Duration: N/A, start: 0.000000, bitrate: 32 kb/s
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Output #0, mp3, to '.\CONCATENATED_AUDIO_2.MP3':
    
  Metadata:
    
    TSSE            : Lavf58.35.101
    
    Stream #0:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
Press [q] to stop, [?] for help
    
[mp3 @ 0000000000372d00] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 17280 >= 17255
    
size=      11kB time=00:00:02.73 bitrate=  33.2kbits/s speed=2.73e+03x    
    
video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.137446%
    
======================== 
    
IN_FILE=".\MyList.txt"   
    
EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"   
    
OPTIONS= -f concat -safe 0 -i  ".\MyList.txt"  -c copy -y   
    
========================  

    I believe I am running FFmpeg 4.2.1, recently installed (20200112)

    You may produce the HELLO.mp3 by saving the following link

    https://translate.google.com.vn/translate_tts?en=UTF-8&amp;q=Hello+&amp;tl=en&amp;client=tw-ob

    FYI, I am still a novice of ffmpeg and using it more like a black box with the help I received in this very super forum.
    Please be as explicit as you can with command line options on how I can fix this issue.
    Thank you.

    Additional Hints Debugging :

    If I append more files after the silence audio it seems that the silence audio impacts (garbles, chops) the previous audio.
    You may try the following for the list of audio files input.

    ECHO file '%ROOTPATH%HELLO.mp3' > MyList.txt
    
ECHO file 'SILENCE_2sec.MP3' >> MyList.txt
    
ECHO file '%ROOTPATH%HELLO.mp3' >> MyList.txt
    
ECHO file '%ROOTPATH%HELLO.mp3' >> MyList.txt

    I typically add one or more silence file to derive a post silence effect after the actual audio. That’s my current logic. However if you have an alternative to appending a silence in the process of concatenating several audio files or appending x-seconds silence to an existing audio file. I can use that method as well from my coding.

    Thank you.

  • How to concatenate 3 mp4 files using ffmpeg (facing error in resultant video) ?

    5 février 2021, par Mayank Thapliyal

    I have 3 videos of mp4 format. They have same resolution (640 X 1280) but other properties like frame rate etc are different. I want to join them back to back.So I gave a check on internet and I used the following method

    &#xA;

    :: Create File List&#xA;echo file file1.mp4 >  mylist.txt &#xA;echo file file2.mp4 >> mylist.txt&#xA;echo file file3.mp4 >> mylist.txt&#xA;&#xA;:: Concatenate Files&#xA;ffmpeg -f concat -i mylist.txt -c copy output.mp4&#xA;

    &#xA;

    But unfortunately it did not worked.In the resultant video, file1 part got freezed, and audio of whole video shifted (no idea how).And other methods are also not working properly

    &#xA;

    I just want to join them back to back.Any idea how to do it ?

    &#xA;

    Edit :- I gave a check on the output of the ffmpeg (using pause command in bat and discovered the following. Maybe it may help regarding the issue)

    &#xA;

    C:\Users\Cascade_Games\Desktop\Cascade Empire\ffmpeg-4.3.1-2020-10-01-full_build\bin>ffmpeg -f concat -i mylist.txt -vcodec copy -acodec copy Mux1.mp4&#xA;ffmpeg version 4.3.1-2020-10-01-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers&#xA;  built with gcc 10.2.0 (Rev3, Built by MSYS2 project)&#xA;  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint&#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;[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a0474e6a40] Auto-inserting h264_mp4toannexb bitstream filter&#xA;Input #0, concat, from &#x27;mylist.txt&#x27;:&#xA;  Duration: N/A, start: -0.023220, bitrate: 2447 kb/s&#xA;    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc&#xA;    Metadata:&#xA;      handler_name    : VideoHandle&#xA;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s&#xA;    Metadata:&#xA;      handler_name    : SoundHandler&#xA;Output #0, mp4, to &#x27;Mux1.mp4&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf58.45.100&#xA;    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], q=2-31, 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc&#xA;    Metadata:&#xA;      handler_name    : VideoHandle&#xA;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s&#xA;    Metadata:&#xA;      handler_name    : SoundHandler&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (copy)&#xA;  Stream #0:1 -> #0:1 (copy)&#xA;Press [q] to stop, [?] for help&#xA;[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a04750d700] Auto-inserting h264_mp4toannexb bitstream filter&#xA;[mov,mp4,m4a,3gp,3g2,mj2 @ 000002a0474ef040] Auto-inserting h264_mp4toannexb bitstream filter&#xA;[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30282976, current: 27826977; changing to 30282977. This may result in incorrect timestamps in the output file.&#xA;[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30282977, current: 27828129; changing to 30282978. This may result in incorrect timestamps in the output file.&#xA;(Same Thing was getting repeated,hence I deleted it)&#xA;[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30283209, current: 28095393; changing to 30283210. This may result in incorrect timestamps in the output file.&#xA;[mp4 @ 000002a0478e09c0] Non-monotonous DTS in output stream 0:1; previous: 30283210, current: 28096545; changing to 30283211. This may result in incorrect timestamps in the output file.&#xA;[mp4 @ 000002a0478e09c0] aac bitstream error&#xA;    Last message repeated 234 times&#xA;frame=18937 fps=11438 q=-1.0 Lsize=   49051kB time=00:11:26.69 bitrate= 585.2kbits/s speed= 415x&#xA;video:40720kB audio:7653kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.401324%&#xA;

    &#xA;

    Edit :-&#xA;Info of all files (I have changed the video name to 1.mp4,2.mp4,3.mp4)

    &#xA;

    C:\Users\Cascade_Games\Desktop\Cascade Empire\ffmpeg-4.3.1-2020-10-01-full_build\bin>ffmpeg -i 1.mp4 -i 2.mp4 -i 3.mp4&#xA;ffmpeg version 4.3.1-2020-10-01-full_build-www.gyan.dev Copyright (c) 2000-2020 the FFmpeg developers&#xA;  built with gcc 10.2.0 (Rev3, Built by MSYS2 project)&#xA;  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint&#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, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;1.mp4&#x27;:&#xA;  Metadata:&#xA;    major_brand     : isom&#xA;    minor_version   : 512&#xA;    compatible_brands: isomiso2avc1mp41&#xA;    encoder         : Lavf58.45.100&#xA;  Duration: 00:00:05.27, start: 0.000000, bitrate: 2337 kb/s&#xA;    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 2320 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)&#xA;    Metadata:&#xA;      handler_name    : VideoHandle&#xA;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&#xA;    Metadata:&#xA;      handler_name    : SoundHandler&#xA;Input #1, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;2.mp4&#x27;:&#xA;  Metadata:&#xA;    major_brand     : isom&#xA;    minor_version   : 512&#xA;    compatible_brands: isomiso2avc1mp41&#xA;    encoder         : Lavf58.45.100&#xA;  Duration: 00:10:25.70, start: 0.000000, bitrate: 616 kb/s&#xA;    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x640 [SAR 1:1 DAR 2:1], 511 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)&#xA;    Metadata:&#xA;      handler_name    : VideoHandler&#xA;    Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 96 kb/s (default)&#xA;    Metadata:&#xA;      handler_name    : SoundHandle&#xA;Input #2, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;3.mp4&#x27;:&#xA;  Metadata:&#xA;    major_brand     : isom&#xA;    minor_version   : 512&#xA;    compatible_brands: isomiso2avc1mp41&#xA;    encoder         : Lavf58.45.100&#xA;  Duration: 00:00:08.50, start: 0.000000, bitrate: 447 kb/s&#xA;    Stream #2:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1280x640 [SAR 1:1 DAR 2:1], 228 kb/s, 2 fps, 2 tbr, 16384 tbn, 4 tbc (default)&#xA;    Metadata:&#xA;      handler_name    : VideoHandler&#xA;    Stream #2:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 319 kb/s (default)&#xA;    Metadata:&#xA;      handler_name    : SoundHandler&#xA;

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