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Sur d’autres sites (7426)

  • using ffmpeg to convert gif to mp4 , output doesn't play on android

    22 mai 2020, par Mahdi

    I just use the following command to convert a gif file to mp4 but the resulting mp4 file doesn't play in android default video player .
    
what did I wrong ?
    
is there any aditional steps should I take to produce android playable mp4 files ?

    



    $ ffmpeg -f gif -i infile.gif outfile.mp4


    



    my test gif file : Test Gif File
    
My desktop played the output.mp4 very well using VLC Media Player and also MX Player on my android device played the video file without any error.

    


  • Concat videos with ffmpeg does not work [migrated]

    6 mai 2013, par Yannick Schinko

    I'm currently trying to concat 3 Videos which don't have a audio stream and adding a audio file in the same step.

    I created this command which should do the work :

    ffmpeg -y -r 30 -i data\intro.mp4 -vcodec ppm -f image2pipe -i data\render.ppm -i data\outro.mp4 -i "data\I could be the one.mp3" -c:v libx264 -crf 18 -preset slow -pix_fmt yuv420p -c:a copy -filter_complex "[0:0] [1:0] [2:0] concat=n=3:v=1:a=0 [v]" -map [v] -map 3:0 -shortest -metadata title="Development of BrainStoneMod" -metadata description="This is the development of the BrainStoneMod starting from 08th April, 2013" -metadata author="The_BrainStone" -metadata copyright="2013" -metadata year="2013" -metadata composer="" -metadata TBPM="" -metadata TDAT="" gource.mp4

    It is indeed a long command but it satisfied my needs until I wanted to embend the actual video in between a intro and a outro.

    I'm getting this log :

    ffmpeg version N-51639-g7775992 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Apr  5 2013 22:24:22 with gcc 4.8.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrn
    
b --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libr
    
tmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheo
    
ra --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
    
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena
    
ble-zlib
    
  libavutil      52. 25.100 / 52. 25.100
    
  libavcodec     55.  2.100 / 55.  2.100
    
  libavformat    55.  1.100 / 55.  1.100
    
  libavdevice    55.  0.100 / 55.  0.100
    
  libavfilter     3. 49.100 /  3. 49.100
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'data\intro.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.1.100
    
  Duration: 00:00:04.00, start: 0.000000, bitrate: 42 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720
    
[SAR 1:1 DAR 16:9], 38 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    
    Metadata:
    
      handler_name    : VideoHandler
    
[image2pipe @ 027f0a80] Stream #0: not enough frames to estimate rate; consider
    
increasing probesize
    
Input #1, image2pipe, from 'data\render.ppm':
    
  Duration: N/A, bitrate: N/A
    
    Stream #1:0: Video: ppm, rgb24, 1280x720, 25 tbr, 25 tbn, 25 tbc
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'data\outro.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.1.100
    
  Duration: 00:00:04.00, start: 0.000000, bitrate: 42 kb/s
    
    Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720
    
[SAR 1:1 DAR 16:9], 38 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    
    Metadata:
    
      handler_name    : VideoHandler
    
[mp3 @ 02757020] max_analyze_duration 5000000 reached at 5015510 microseconds
    
[mp3 @ 02757020] Estimating duration from bitrate, this may be inaccurate
    
Input #3, mp3, from 'data\I could be the one.mp3':
    
  Metadata:
    
    TBPM            : 140
    
    TDAT            : 0000
    
    composer        : Kevin Als
    
  Duration: 00:03:55.91, start: 0.000000, bitrate: 320 kb/s
    
    Stream #3:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
    
[Parsed_concat_0 @ 028b20e0] Input link in1:v0 parameters (size 1280x720, SAR 0:
    
1) do not match the corresponding output link in0:v0 parameters (1280x720, SAR 1
    
:1)
    
[Parsed_concat_0 @ 028b20e0] Failed to configure output pad on Parsed_concat_0

    What should I do ?

    By the way : This is the command I used before and worked out great :

    ffmpeg -y -r 30 -i "data\I could be the one.mp3" -vcodec ppm -f image2pipe -i data\render.ppm -c:v libx264 -crf 18 -preset slow -pix_fmt yuv420p -c:a copy -map 1:0 -map 0:0 -shortest -metadata title="Development of BrainStoneMod" -metadata description="This is the development of the BrainStoneMod starting from 08th April, 2013" -metadata author="The_BrainStone" -metadata copyright="2013" -metadata year="2013" -metadata composer="" -metadata TBPM="" -metadata TDAT="" gource.mp4

    Any ideas ?

  • compiling errors with ffmpeg on linux [closed]

    7 mai 2013, par David Tree

    Hi all ,I downloaded the latest ffmpeg source code and successfully installed it on Ubuntu

    But I failed to compile a simple demo.
    This was created with QtCreator with the .pro file as follows :

    QT -= gui

    TARGET = qt_v4l2
    TEMPLATE = app
    SOURCES += \
    ../tutorial01.c

    LIBS += -L/-lavcodec -lavformat -lswscale -lavutil

    Here are the error messages ,just to name a few :

    ../tutorial01.c:22:16 : error : unknown type name 'AVFrame'

    ../tutorial01.c:55:5 : error : unknown type name 'uint8_t'

    ../tutorial01.c:68:50 : error : 'NULL' undeclared (first use in this function)

    /tutorial01.c:84:22 : error : request for member 'streams' in something not a structure or union

    ../tutorial01.c:84:57 : error : 'AVMEDIA_TYPE_VIDEO' undeclared (first use in this function)

    ../tutorial01.c:122:24 : error : expected expression before ')' token

    ../tutorial01.c:128:21 : error : 'AVPicture' undeclared (first use in this function)
    ../tutorial01.c:128:32 : error : expected expression before ')' token

    .

    And this is the ffmpeg installed
    ffmpeg version 1.1.git Copyright (c) 2000-2013 the FFmpeg developers
    built on May 7 2013 14:10:58 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
    configuration : —enable-gpl —prefix=/usr —enable-libx264 —enable-pthreads

    And this is the actuall CODE

    https://github.com/phamquy/FFmpeg-tutorial-samples/blob/master/tutorial01.c

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