Newest 'ffmpeg' Questions - Stack Overflow

http://stackoverflow.com/questions/tagged/ffmpeg

Les articles publiés sur le site

  • Coverting Audio to AAC using ffmpeg

    6 décembre 2013, par user1503606

    I have the following setup for ffmpeg

    ffmpeg version N-54790-g1816f55-syslint Copyright (c) 2000-2013 the FFmpeg developers
  built on Jul 17 2013 21:34:32 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
  configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --extra-cflags=-I/usr/local/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3 --extra-version=syslint
  libavutil      52. 40.100 / 52. 40.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 81.101 /  3. 81.101
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100

    I am try to use ffmpeg to convert my m4a or mp3 files to 

    AAC, Low Complexity Profile (LC)

    Really struggling to find a command line that works for me is it even possible with my ffmpeg setup?

    Thanks

  • FFMPEG : FFPLAY not getting generated on compilation

    6 décembre 2013, par Zax

    I have downloaded FFMPEG with FFPLAY enabled code from: https://github.com/cus/ffplay

    I use the following command to configure and make the package:

    ./configure --enable-ffplay
make

    However, the packages created are:

    ffmpeg
ffmpeg_g
ffserver
ffserver_g
ffprobe
ffprobe_g

    I have referred this post : http://ffmpeg-users.933282.n4.nabble.com/Compiling-FFMPEG-with-ffplay-support-td3414041.html But this didn't help out.

    I checked my config.log, it has the below lines:

    ffplay='yes'
ffplay_deps='avcodec avformat swscale swresample sdl'
ffplay_select='rdft crop_filter'

    I have the sdl packages installed in my system. What is the issue actually. Could anyone please guide me through this.

  • How Opensl es on android control the audio speed ?

    6 décembre 2013, par user1882379

    I use NDK+FFMPEG on android to decode an video file, and transfer the decoded pcm data to opensles for play audio .I register the opengles for the pcm format：

      SLDataFormat_PCM format_pcm;
    format_pcm.formatType = SL_DATAFORMAT_PCM;
    format_pcm.numChannels = channel;
    format_pcm.samplesPerSec = rate * 1000;
    format_pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
    format_pcm.containerSize = SL_PCMSAMPLEFORMAT_FIXED_16;

    also I convert the decoded pcm data to AV_SAMPLE_FMT_S16 format using swr_convert(...), but the play audio speed is very fast. but if you use sdl , the play speed is normal. It would be sdl can control the play audio speed, but opensles can not. I do not know whether it is my mistake using opensles or opensles can not control audio speed(need application to control)？

  • ffmpeg : is that possible to join 4 small videos in 1 big video ? [duplicate]

    6 décembre 2013, par user300675

    This question already has an answer here:

    I have 4 small videos : 160*120pixels each of different length each.

    My goal is to obtain 1 video of 320*320 pixels: - video1 on top left, video2 on top right, video3 on bottom left, video4 on bottom right

    Is this possible with FFMPEG ?

  • How to install ffmpeg on localhost using appserve

    6 décembre 2013, par Jack Ben

    I've made many searching and yes there are a lot of questions almost the same but nothing is working for me.

    • I've localhost on my PC Winxp 32bit and i'm using appserve
    • My php version is 5.2.3

    so how can i install ffmpeg ? i just wanna install it to made some test how does it works so it would be very helpful to me if it possible.

    ~ Thanks a lot

Navigation

Sites Web