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  • HOW TO APPLY TRANSITION EFFECTS IN FFMPEG ? [closed]

    8 janvier 2023, par SMART

    I have 7 videos with audio, i tried to apply transition effects on these files, written code in python for this , i got error .

    


    python code :
import subprocess as sp

    


        def runffmpeg(cmd):
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            ffmpeg_output, _ = pipe.communicate()
    
            print(ffmpeg_output)
            return (ffmpeg_output)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
    
    def get_duration(fn):
        cmd = (
            f"ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 {fn}")
    
        cmd1 = (
            f"ffprobe -v error -of flat=s_ -select_streams 1 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 {fn}")
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            viddur, _ = pipe.communicate()
    
            print(viddur)
    
            pipe = sp.Popen(cmd1, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            auddur, _ = pipe.communicate()
    
            try:
                auddur = float(auddur.strip())
            except:
                auddur = 0
    
            print(auddur)
    
            # if (len(auddur) == 0):
            #     auddur = 0
    
            return float(viddur.strip()), (auddur)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
    
    
    def trans(clips, effects, out="trans.mp4"):
        filtc = " [v1][v2]xfade=wipedown:duration=1:offset=4[x1];"
        i = 0
        fcv = ""
        fca = ""
        d1 = 0
        af = ""
        dur = []
        aud = []
        inp = ""
        j = 0
        print(len(clips))
    
        for x in clips:
            print(x[0])
            inp = (inp + " -i " + x)
    
            print(effects[0])
            print(x)
    
            v, a = get_duration(fn=x)
            dur.append(v)
    
        k = 0
        for x in dur:
    
            if (k == 0):
                fca = (fca + f"[{k}:a]adelay=0|0 [a{k+1}];")
            else:
                fca = (fca + f"[{k}:a]adelay={d1}|{d1} [a{k+1}];")
            aud.append(f"[a{k+1}]")
            k = (k+1)
            d1 = (d1+((x*1000)+3.5))
    
        d1 = 0
        for x in efects:
            for v in range(0, j+1, +1):
                d1 = (d1 + dur[v])
                d1 = (d1-((v+1)*3.5))
            # [0:a]adelay=0|0 [a1];
            if (i > 1):
    
                try:
                    fcv = (
                        fcv+f"[x{(i)}][{(i)}:v]xfade={x}:duration=3:offset={d1} [x{(i+1)}];")
                except:
                    pass
            else:
                print("j = %d" % j)
                fcv = (
                    fcv+f"[{(i)}:v][{(i+1)}:v]xfade={x}:duration=3:offset={d1} [x{(i+1)}];")
    
            j = (j+1)
            i = (i+1)
    
        for a in aud:
            af = (af+a)
        af = (af+f"amix=inputs={len(aud)} [faud]")
    
        inp = (inp+" -filter_complex \"")
        cmd = (
            f"ffmpeg {inp} {fcv} {fca} {af} \" -pix_fmt yuv420p -map \"[x{i}]\" -map \"[faud]\" -y {out}")
    
        print(cmd)
    
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            ffmpeg_output, _ = pipe.communicate()
    
            print(ffmpeg_output)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
            
            


    


    these functions creates ffmpeg code like :
ffmpeg -i out1.mp4 -i out2.mp4 -i out3.mp4 -i out4.mp4 -i out5.mp4 -i out6.mp4 -i out7.mp4 -filter_complex " [0:v][1:v]xfade=wipedown:duration=3:offset=6.006009000000001 [x1] ;[1:v][2:v]xfade=dissolve:duration=3:offset=14.030023 [x2] ;[x2][2:v]xfade=pixelize:duration=3:offset=20.572042000000003 [x3] ;[x3][3:v]xfade=vuslice:duration=3:offset=21.621068000000008 [x4] ;[x4][4:v]xfade=radial:duration=3:offset=14.188099000000015 [x5] ;[x5][5:v]xfade=vertopen:duration=3:offset=-5.737862999999978 [x6] ; [0:a]adelay=0|0 [a1] ;[1:a]adelay=9509.509|9509.509 [a2] ;[2:a]adelay=18531.014000000003|18531.014000000003 [a3] ;[3:a]adelay=27552.519000000004|27552.519000000004 [a4] ;[4:a]adelay=36063.026000000005|36063.026000000005 [a5] ;[5:a]adelay=45084.531|45084.531 [a6] ;[6:a]adelay=53595.038|53595.038 [a7] ; [a1][a2][a3][a4][a5][a6][a7]amix=inputs=7 [faud] " -pix_fmt yuv420p -map "[x6]" -map "[faud]" -y trans.mp4

    


    this ffmpeg command generates error :

    


        ffmpeg version 2022-12-25-git-eeb280f351-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
      built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
      configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --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
      libavutil      57. 43.100 / 57. 43.100
      libavcodec     59. 55.103 / 59. 55.103
      libavformat    59. 34.102 / 59. 34.102
      libavdevice    59.  8.101 / 59.  8.101
      libavfilter     8. 53.100 /  8. 53.100
      libswscale      6.  8.112 /  6.  8.112
      libswresample   4.  9.100 /  4.  9.100
      libpostproc    56.  7.100 / 56.  7.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out1.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.51, start: 0.000000, bitrate: 1358 kb/s
      Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1303 kb/s, 26.94 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 51 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'out2.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 1060 kb/s
      Stream #1:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1007 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #1:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 47 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'out3.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 1228 kb/s
      Stream #2:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1178 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #2:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 46 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #3, mov,mp4,m4a,3gp,3g2,mj2, from 'out4.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:08.51, start: 0.000000, bitrate: 987 kb/s
      Stream #3:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 938 kb/s, 26.57 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #3:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 43 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #4, mov,mp4,m4a,3gp,3g2,mj2, from 'out5.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 1221 kb/s
      Stream #4:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1170 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #4:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 47 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #5, mov,mp4,m4a,3gp,3g2,mj2, from 'out6.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:08.51, start: 0.000000, bitrate: 1073 kb/s
      Stream #5:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1027 kb/s, 26.57 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #5:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 41 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #6, mov,mp4,m4a,3gp,3g2,mj2, from 'out7.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 757 kb/s
      Stream #6:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 705 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #6:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 46 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Filter xfade:default has an unconnected output


    


    Filter xfade:default has an unconnected output , what does it mean ?

    


    in adelay area , getting -ve nos , what to do ?

    


    #useage :

    


    vc = ["C1.mp4", "C2.mp4", "C3.mp4", "C4.mp4", "C5.mp4", "C6.mp4", "C7.mp4"]

    


        i = 1
    gc = []
    for x in vc:
        gc.append(f"out{i}.mp4")
        i = (i+1)
    
    print(gc)
    
    trans(clips=gc, effects=efects)


    


    system details :
windows 10 64 bits
python 3.9 64 bits

    


  • Filter complex apply on ffmpeg for android outputs low quality video

    17 septembre 2014, par Alin

    I finally managed to build ffmpeg as detailed in here : https://enoent.fr/blog/2014/06/20/compile-ffmpeg-for-android/ and in the end, I have a ffmpeg library which accepts command arguments.

    I am trying to apply a watermark image over the video so for it I am using preparing this ffmpeg command :

    ffmpeg -i input.avi -i logo.png -filter_complex 'overlay=10:main_h-overlay_h-10' output.avi

    I have first tried it on windows using ffmpeg.exe and the result was as expected.

    I have tried it on android using the compiled android and the output is as follows :

    09-17 01:16:57.156: I/Videokit(1229): Loading native library compiled at 22:33:10 Sep 15 2014
    
09-17 01:16:57.156: I/Videokit(1229): Option: ffmpeg
    
09-17 01:16:57.156: I/Videokit(1229): Option: -loglevel
    
09-17 01:16:57.156: I/Videokit(1229): Option: debug
    
09-17 01:16:57.156: I/Videokit(1229): Option: -i
    
09-17 01:16:57.156: I/Videokit(1229): Option: /storage/emulated/0/mute.mp4
    
09-17 01:16:57.156: I/Videokit(1229): Option: -i
    
09-17 01:16:57.156: I/Videokit(1229): Option: /storage/emulated/0/logo.png
    
09-17 01:16:57.156: I/Videokit(1229): Option: -filter_complex
    
09-17 01:16:57.156: I/Videokit(1229): Option: overlay=10:main_h-overlay_h-10
    
09-17 01:16:57.156: I/Videokit(1229): Option: /storage/emulated/0/outVid.mp4
    
09-17 01:16:57.156: I/Videokit(1229): Running main
    
09-17 01:16:57.163: D/Videokit(1229): Splitting the commandline.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-loglevel' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as option 'loglevel' (set logging level) with argument 'debug'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-i' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as input file with argument '/storage/emulated/0/mute.mp4'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-i' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as input file with argument '/storage/emulated/0/logo.png'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-filter_complex' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as option 'filter_complex' (create a complex filtergraph) with argument 'overlay=10:main_h-overlay_h-10'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '/storage/emulated/0/outVid.mp4' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as output file.
    
09-17 01:16:57.163: D/Videokit(1229): Finished splitting the commandline.
    
09-17 01:16:57.163: D/Videokit(1229): Parsing a group of options: global .
    
09-17 01:16:57.163: D/Videokit(1229): Applying option loglevel (set logging level) with argument debug.
    
09-17 01:16:57.163: D/Videokit(1229): Applying option filter_complex (create a complex filtergraph) with argument overlay=10:main_h-overlay_h-10.
    
09-17 01:16:57.163: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.163: D/Videokit(1229): Parsing a group of options: input file /storage/emulated/0/mute.mp4.
    
09-17 01:16:57.163: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.163: D/Videokit(1229): Opening an input file: /storage/emulated/0/mute.mp4.
    
09-17 01:16:57.296: D/Videokit(1229): Successfully opened the file.
    
09-17 01:16:57.296: D/Videokit(1229): Parsing a group of options: input file /storage/emulated/0/logo.png.
    
09-17 01:16:57.296: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.296: D/Videokit(1229): Opening an input file: /storage/emulated/0/logo.png.
    
09-17 01:16:57.304: D/Videokit(1229): Successfully opened the file.
    
09-17 01:16:57.304: D/Videokit(1229): Parsing a group of options: output file /storage/emulated/0/outVid.mp4.
    
09-17 01:16:57.304: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.304: D/Videokit(1229): Opening an output file: /storage/emulated/0/outVid.mp4.
    
09-17 01:16:57.312: D/Videokit(1229): Successfully opened the file.
    
09-17 01:16:57.351: I/Videokit(1229): Stream mapping:
    
09-17 01:16:57.351: I/Videokit(1229):   Stream #0:0 (h264) -> overlay:main
    
09-17 01:16:57.351: I/Videokit(1229):   Stream #1:0 (png) -> overlay:overlay
    
09-17 01:16:57.351: I/Videokit(1229):   overlay
    
09-17 01:16:57.351: I/Videokit(1229):  -> Stream #0:0 (mpeg4)
    
09-17 01:16:57.351: I/Videokit(1229): Press [q] to stop, [?] for help
    
09-17 01:16:57.890: I/Videokit(1229): frame=   12 fps=0.0 q=24.3 size=     113kB time=00:00:00.40 bitrate=2314.9kbits/s    
    
09-17 01:16:58.413: I/Videokit(1229): frame=   26 fps= 25 q=31.0 size=     154kB time=00:00:00.86 bitrate=1455.1kbits/s    
    
09-17 01:16:58.953: I/Videokit(1229): frame=   38 fps= 24 q=31.0 size=     180kB time=00:00:01.26 bitrate=1165.0kbits/s    
    
09-17 01:17:00.085: I/Videokit(1229): frame=   50 fps= 24 q=31.0 size=     205kB time=00:00:01.66 bitrate=1006.8kbits/s    
    
09-17 01:17:00.163: I/Videokit(1229): frame=   51 fps= 19 q=31.0 size=     206kB time=00:00:01.70 bitrate= 992.8kbits/s    
    
09-17 01:17:00.632: I/Videokit(1229): frame=   64 fps= 20 q=31.0 size=     230kB time=00:00:02.13 bitrate= 883.9kbits/s    
    
09-17 01:17:01.156: I/Videokit(1229): frame=   78 fps= 21 q=31.0 size=     254kB time=00:00:02.60 bitrate= 798.5kbits/s    
    
09-17 01:17:01.679: I/Videokit(1229): frame=   92 fps= 21 q=31.0 size=     275kB time=00:00:03.06 bitrate= 734.7kbits/s    
    
09-17 01:17:02.179: I/Videokit(1229): frame=  106 fps= 22 q=31.0 size=     296kB time=00:00:03.53 bitrate= 684.8kbits/s    
    
09-17 01:17:02.726: I/Videokit(1229): frame=  121 fps= 23 q=24.8 size=     325kB time=00:00:04.03 bitrate= 660.1kbits/s    
    
09-17 01:17:03.249: I/Videokit(1229): frame=  134 fps= 23 q=31.0 size=     344kB time=00:00:04.47 bitrate= 629.8kbits/s    
    
09-17 01:17:03.781: I/Videokit(1229): frame=  147 fps= 23 q=31.0 size=     368kB time=00:00:04.90 bitrate= 614.2kbits/s    
    
09-17 01:17:04.335: I/Videokit(1229): frame=  159 fps= 23 q=31.0 size=     390kB time=00:00:05.30 bitrate= 602.1kbits/s    
    
09-17 01:17:04.921: I/Videokit(1229): frame=  171 fps= 23 q=31.0 size=     412kB time=00:00:05.70 bitrate= 591.3kbits/s    
    
09-17 01:17:05.437: I/Videokit(1229): frame=  183 fps= 23 q=31.0 size=     432kB time=00:00:06.10 bitrate= 579.8kbits/s    
    
09-17 01:17:05.937: I/Videokit(1229): frame=  196 fps= 23 q=31.0 size=     453kB time=00:00:06.53 bitrate= 568.0kbits/s    
    
09-17 01:17:06.453: I/Videokit(1229): frame=  210 fps= 23 q=31.0 size=     483kB time=00:00:07.00 bitrate= 565.2kbits/s    
    
09-17 01:17:06.976: I/Videokit(1229): frame=  224 fps= 23 q=31.0 size=     513kB time=00:00:07.47 bitrate= 562.3kbits/s    
    
09-17 01:17:07.515: I/Videokit(1229): frame=  239 fps= 24 q=31.0 size=     538kB time=00:00:07.97 bitrate= 553.1kbits/s    
    
09-17 01:17:08.007: I/Videokit(1229): frame=  249 fps= 23 q=31.0 size=     559kB time=00:00:08.30 bitrate= 551.2kbits/s    
    
09-17 01:17:08.531: I/Videokit(1229): frame=  262 fps= 24 q=31.0 size=     581kB time=00:00:08.74 bitrate= 544.6kbits/s    
    
09-17 01:17:09.359: I/Videokit(1229): frame=  272 fps= 23 q=31.0 size=     602kB time=00:00:09.07 bitrate= 543.1kbits/s    
    
09-17 01:17:09.882: I/Videokit(1229): frame=  284 fps= 23 q=31.0 size=     624kB time=00:00:09.47 bitrate= 539.5kbits/s    
    
09-17 01:17:10.374: I/Videokit(1229): frame=  296 fps= 23 q=31.0 size=     651kB time=00:00:09.87 bitrate= 540.2kbits/s    
    
09-17 01:17:10.898: I/Videokit(1229): frame=  309 fps= 23 q=31.0 size=     682kB time=00:00:10.31 bitrate= 542.1kbits/s    
    
09-17 01:17:11.406: I/Videokit(1229): frame=  324 fps= 23 q=31.0 size=     710kB time=00:00:10.81 bitrate= 538.3kbits/s    
    
09-17 01:17:11.929: I/Videokit(1229): frame=  343 fps= 24 q=31.0 size=     749kB time=00:00:11.44 bitrate= 536.2kbits/s    
    
09-17 01:17:12.437: I/Videokit(1229): frame=  361 fps= 24 q=24.8 size=     787kB time=00:00:12.04 bitrate= 535.3kbits/s    
    
09-17 01:17:12.953: I/Videokit(1229): frame=  379 fps= 24 q=31.0 size=     821kB time=00:00:12.64 bitrate= 531.8kbits/s    
    
09-17 01:17:13.460: I/Videokit(1229): frame=  397 fps= 25 q=24.8 size=     869kB time=00:00:13.24 bitrate= 537.2kbits/s    
    
09-17 01:17:13.960: I/Videokit(1229): frame=  413 fps= 25 q=31.0 size=     903kB time=00:00:13.78 bitrate= 537.0kbits/s    
    
09-17 01:17:14.468: I/Videokit(1229): frame=  430 fps= 25 q=31.0 size=     942kB time=00:00:14.34 bitrate= 537.7kbits/s    
    
09-17 01:17:14.601: V/Videokit(1229): No more output streams to write to, finishing.
    
09-17 01:17:14.609: I/Videokit(1229): frame=  435 fps= 25 q=31.0 Lsize=     959kB time=00:00:14.51 bitrate= 541.2kbits/s    
    
09-17 01:17:14.609: I/Videokit(1229): video:956kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.275524%
    
09-17 01:17:14.609: D/Videokit(1229): 439 frames successfully decoded, 0 decoding errors
    
09-17 01:17:14.617: I/Videokit(1229): Main ended with status 0

    The problem is that the output on android has very poor quality How can I make ffmpeg build a video with a quality close to the original file. I presume that filter_complex forces a new video encode.

  • I have a file in the .sec path, when I convert it to mp4 or avi format with ffmpeg, the video comes out very fast

    19 décembre 2022, par Ali Gökkaya

    When I convert my .sec file to mp4 or avi format using ffmpeg, the video is very fast

    


    the pipe i use

    


    ffmpeg -i 07302323_2300.sec output.mp4


    


    the pipe i used took 30 minutes to 43 seconds

    


    ffmpeg -i 07302323_2300.sec -r 27 -filter:v "setpts=4.1*PTS" output.mp4


    


    If this is the pipe I use, I extend the time a little bit, but the video is distorted.

    


    Any ideas on what I can do ?

    


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