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  • Configure ffmpeg for wowza and wp8

    11 octobre 2013, par Anton Shakalo

    I have mp4 file from my windows phone.

    There is info:

    General
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42

Video
Format                                    : AVC
Codec ID                                 : avc1
Codec ID/Info                           : Advanced Video Coding

Audio
Format                                    : AAC
Format profile                           : LC
Codec ID                                 : 40
Bit rate                                   : 96.0 Kbps
Sampling rate                           : 44.1 KHz

    When I stream it to wowza with next ffmpeg command ( I got it from documentation)

    ffmpeg -re -i "C:\sample2.mp4"  -vcodec libx264  -vb 150000 -g 60 -vprofile main -level 2.1 -acodec aac -ab 64000 -ar 48000 -ac 2 -vbsf h264_mp4toannexb  -f mpegts udp://127.0.0.1:10001?pkt_size=1316

    In client app I see corrupted video: http://i.imgur.com/fKEMlsB.png

    With sample file provided by wowza streamed video looks fine.

    There is info about sample file from wowza:

    General
Format                                   : MPEG-4
Format profile                           : QuickTime
Codec ID                                 : qt  

Video
Format                                   : AVC
Format profile                           : Baseline@L3.0
Codec ID                                 : avc1

Audio
Format                                   : AAC
Format profile                           : LC
Codec ID                                 : 40

    Can you help me with ffmpeg configuring? I read documentation, but understand nothing.

  • Apply video effects

    11 octobre 2013, par ishan jain

    I am creating an application, in which I have to give the option to apply different effects (normal, sepia, black & white, vintage, HD) to the VIDEO. I am creating this application for android version 2.3 . I am thinking of following the flow video -> convert to image frames -> apply effect to frames using some library -> convert frames to video.

    Can anyone help me that if above flow is correct or not? And which library I can use for applying effects to the frames or is there any other way to apply the effects to the video?

    Thanks

  • Ffmpeg segmenting syntax [migrated]

    10 octobre 2013, par user2868579

    I'm trying to use ffmpeg to break long video files (circa 60mins) with the following requirements: 30sec chunks (fairly exact chunks, no frame loss between chunks) Transcoded to html 5 compatible video Filenames in time code format eg first chunk 00:00:00 second chunk 00:00:30 etc (it would be great if first chunk time could be specified by this would be the cherry on top!)

    So far the closest working script I got was 

        ffmpeg -i VID_20130417_140328_555.mp4 -s 480x360 -map 0 -keyint_min 10 -vcodec libx264 -g 60 -vb 500000 -strict experimental -acodec libfaac -f ssegment -segment_list out.list out%03d.ts

    This segments the file into the correct format but I can't control duration or naming.

    Any help greatly appreciated.

  • extracting h264 raw video stream from mp4 or flv with ffmpeg generate an invalid stream

    10 octobre 2013, par neo2006

    I'm trying to extract the video stream from an mp4 or flv h264 video (youtube video) using ffmpeg. The original video (test.flv) play without trouble with ffplay , ffprobe gives an error as follow:

    ffprobe version N-55515-gbbbd959 Copyright (c) 2007-2013 the FFmpeg developers
built on Aug 13 2013 18:06:32 with gcc 4.7.3 (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-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
enable-libxvid --enable-zlib
  libavutil      52. 42.100 / 52. 42.100
  libavcodec     55. 27.100 / 55. 27.100
  libavformat    55. 13.102 / 55. 13.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 82.100 /  3. 82.100
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
  libpostproc    52.  3.100 / 52.  3.100
[flv @ 000000000031ea80] Stream discovered after head already parsed
Input #0, flv, from 'test.flv':
  Metadata:
    starttime       : 0
    totalduration   : 142
    totaldatarate   : 692
    bytelength      : 12286492
    canseekontime   : true
    sourcedata      : B42B95507HH1381414522145462
    purl            :
    pmsg            :
  Duration: 00:02:22.02, start: 0.000000, bitrate: 692 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p, 640x268, 568 kb/s, 23.98 tbr, 1k t
bn, 47.95 tbc
    Stream #0:1: Audio: aac, 44100 Hz, stereo, fltp, 131 kb/s
    Stream #0:2: Data: none
Unsupported codec with id 0 for input stream 2

    to get rid of the extra streams ( I only needs the video) I used the following ffmpeg command line:

    ffmpeg -i test.flv -map 0:0 -vcodec copy -an -f h264 test.h264

    The new stream is unreadable by any player including ffplay and gives an error with ffprobe : test.h264: Invalid data found when processing inputq= 0B f=0/0

    Any body have an idea about what am I doing wrong?

    I also tried simpler youtube command line:

    ffmpeg -i test.flv -vcodec copy -an test.h264

    if I use another format (avi for example): 

    ffmpeg -i test.flv -vcodec copy -an test.avi

    the output video is valid.

    If I transcode the video 

    ffmpeg -i test.flv -an test.h264

    the output is also valid

    Any suggestions?

  • How to get video thumbnail in PHP ? [on hold]

    10 octobre 2013, par assaf

    I am trying to get a thumbnail from an uploaded videos to my site, but I don't really know how to do this.

    I read that FFMPEG is the tool for this kind of actions, but I didn't understand how do I use this tool, is this a plugin? Do I need to install it?

    I really need help here and the detailed kind, thanks!

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