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Sur d’autres sites (5394)

  • ffmpeg options for playing in iPad WebView with tag

    19 septembre 2013, par Waynn Lue

    I'm trying to convert a video to be played in a tag in a WebView in iOS. I've tried the options at this link but it still doesn't seem to play. I've found videos that do successfully play, though, so I'm sure it's possible, I just can't seem to get any working. Here's the ffmpeg -i output for something that works.

    Here's what I tried from the wiki :

    ffmpeg -i {filename} -acodec aac -ac 2 -strict experimental -ab 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b 1200k -f mp4 -threads 0 {filename}.ipad.mp4

    But the file doesn't play in the WebView.

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.m4v' :
      Metadata :
        major_brand : M4V 
        minor_version : 1
        compatible_brands : M4V M4A mp42isom
        creation_time : 2005-12-20 20:20:15
      Duration : 00:01:25.50, start : 0.000000, bitrate : 209 kb/s
        Stream #0:0(eng) : Audio : aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 115 kb/s
        Metadata :
          creation_time : 2005-12-20 20:20:15
          handler_name : Apple Sound Media Handler
        Stream #0:1(eng) : Video : h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 320x240, 90 kb/s, 10 fps, 10 tbr, 1k tbn, 2k tbc
        Metadata :
          creation_time : 2005-12-20 20:20:15
          handler_name : Apple Video Media Handler
    

    And here's the output for my input file :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cheerfulness.mov' :
      Metadata :
        major_brand : qt  
        minor_version : 537199360
        compatible_brands : qt  
        creation_time : 2013-07-31 00:47:22
      Duration : 00:00:06.00, start : 0.000000, bitrate : 120849 kb/s
        Stream #0:0(eng) : Video : h264 (Main) (avc1 / 0x31637661), yuv420p, 1200x1920, 120823 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc
        Metadata :
          creation_time : 2013-07-31 00:48:33
          handler_name : Apple Alias Data Handler
    

    edit : Here's the full output of the command :

    wlue :$ ffmpeg -i cheerfulness.mov -acodec aac -ac 2 -strict experimental -ab 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b 1200k -f mp4 -threads 0 output.ipad.mp4
    ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
      built on Sep 18 2013 18:44:15 with Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)
      configuration : —prefix=/usr/local/Cellar/ffmpeg/1.2.1 —enable-shared —enable-pthreads —enable-gpl —enable-version3 —enable-nonfree —enable-hardcoded-tables —enable-avresample —enable-vda —cc=cc —host-cflags= —host-ldflags= —enable-libx264 —enable-libfaac —enable-libmp3lame —enable-libxvid
      libavutil      52. 18.100 / 52. 18.100
      libavcodec     54. 92.100 / 54. 92.100
      libavformat    54. 63.104 / 54. 63.104
      libavdevice    54.  3.103 / 54.  3.103
      libavfilter     3. 42.103 /  3. 42.103
      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 'cheerfulness.mov' :
      Metadata :
        major_brand : qt  
        minor_version : 537199360
        compatible_brands : qt  
        creation_time : 2013-07-31 00:47:22
      Duration : 00:00:06.01, start : 0.000000, bitrate : 120849 kb/s
        Stream #0:0(eng) : Video : h264 (Main) (avc1 / 0x31637661), yuv420p, 1200x1920, 120823 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc
        Metadata :
          creation_time : 2013-07-31 00:48:33
          handler_name : Apple Alias Data Handler
    Please use -b:a or -b:v, -b is ambiguous
    [libx264 @ 0x7fa67401fa00] frame MB size (75x120) > level limit (1620)
    [libx264 @ 0x7fa67401fa00] DPB size (5 frames, 17280000 bytes) > level limit (0 frames, 3110400 bytes)
    [libx264 @ 0x7fa67401fa00] MB rate (269730) > level limit (40500)
    [libx264 @ 0x7fa67401fa00] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    [libx264 @ 0x7fa67401fa00] profile Constrained Baseline, level 3.0
    [libx264 @ 0x7fa67401fa00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options : cabac=0 ref=5 deblock=1:0:0 analyse=0x1:0x111 me=umh subme=8 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=abr mbtree=1 bitrate=1200 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=10000 vbv_bufsize=10000 nal_hrd=none ip_ratio=1.40 aq=1:1.00
    Output #0, mp4, to 'output.ipad.mp4' :
      Metadata :
        major_brand : qt  
        minor_version : 537199360
        compatible_brands : qt  
        encoder : Lavf54.63.104
        Stream #0:0(eng) : Video : h264 ([33][0][0][0] / 0x0021), yuv420p, 1200x1920, q=-1—1, 1200 kb/s, 30k tbn, 29.97 tbc
        Metadata :
          creation_time : 2013-07-31 00:48:33
          handler_name : Apple Alias Data Handler
    Stream mapping :
      Stream #0:0 -> #0:0 (h264 -> libx264)
    Press [q] to stop, [?] for help
    frame=  180 fps= 16 q=-1.0 Lsize=     828kB time=00:00:06.00 bitrate=1129.2kbits/s    
    video:826kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.177851%
    [libx264 @ 0x7fa67401fa00] frame I:2     Avg QP:32.23  size : 20942
    [libx264 @ 0x7fa67401fa00] frame P:178   Avg QP:41.03  size :  4515
    [libx264 @ 0x7fa67401fa00] mb I  I16..4 : 90.1%  0.0%  9.9%
    [libx264 @ 0x7fa67401fa00] mb P  I16..4 :  6.8%  0.0%  0.0%  P16..4 : 16.8%  0.6%  0.2%  0.0%  0.0%    skip:75.5%
    [libx264 @ 0x7fa67401fa00] final ratefactor : 37.56
    [libx264 @ 0x7fa67401fa00] coded y,uvDC,uvAC intra : 1.2% 16.4% 2.1% inter : 0.1% 3.4% 0.1%
    [libx264 @ 0x7fa67401fa00] i16 v,h,dc,p : 49% 23%  4% 24%
    [libx264 @ 0x7fa67401fa00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 13%  8% 36%  8% 12%  9%  8%  4%  2%
    [libx264 @ 0x7fa67401fa00] i8c dc,h,v,p : 88%  6%  5%  1%
    [libx264 @ 0x7fa67401fa00] ref P L0 : 47.7% 22.0% 16.7%  5.7%  7.9%
    [libx264 @ 0x7fa67401fa00] kb/s:1126.21
    
  • webm local udp streaming using FFMPEG

    1er octobre 2013, par siniv

    I was just started to use ffmpeg recently and stumbled on this streaming problem.
    Scenario : i want to live stream a webcam in local network. Both server and client will be using windows platform.

    Current feasible solution : using ffmpeg simple command line

    to test it quickly i tried to locally stream it (the input doesn't really matter btw in this question).

    On server -> ffmpeg -f dshow -i video="cam1":audio="mic1" -r 30 -g 0 -vcodec h264 -acodec libmp3lame -tune zerolatency -preset ultrafast -f mpegts udp://localhost:6789
    On client(the same computer) -> ffplay udp://localhost:6789

    The above works just fine, except for the latency, which i'm getting at about 1-2 second delay.

    Now i want to try to change the encoder to use libvpx (vp8) for video and vorbis for audio (i changed the input to a pre-recorded h264 video, but it really doesn't matter)

    On server
       >ffmpeg -i "suits.mp4" -r 30 -g 0 -vcodec libvpx -acodec vorbis -strict -2 -f webm -f mpegts udp://localhost:6789
        On client(the same computer) -> ffplay udp://localhost:6789
    However this doesn't work... And below are console outputs:
       > onserver ->
       > ffmpeg version N-56165-gae12d65 Copyright (c) 2000-2013 the FFmpeg
       > developers   built on Sep 10 2013 19:42:46 with gcc 4.7.3 (GCC)  
       > configuration: --enable-gpl --enable-version3 --disable-w32threads
       > --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib   libavutil      52. 43.100 / 52. 43.100   libavcodec     55. 31.101 / 55. 31.101   libavformat    55. 16.102 / 55. 16.102   libavdevice    55.  3.100 / 55.  3.100   libavfilter     3. 84.100 /  3. 84.100   libswscale      2.  5.100 /
       > 2.  5.100   libswresample   0. 17.103 /  0. 17.103   libpostproc    52.  3.100 / 52.  3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Suits.mp4':   Metadata:
       >     major_brand     : isom
       >     minor_version   : 1
       >     compatible_brands: isom
       >     creation_time   : 2011-09-08 11:43:25   Duration: 00:42:14.87, start: 0.000000, bitrate: 882 kb/s
       >     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 720x402 [SAR 1:1 DAR 120:67], 750 kb/s, 23.98 fps,
       > 23.98 tbr, 24k tbn, 47.95 tbc (default)
       >     Metadata:
       >       creation_time   : 2011-09-08 11:43:25
       >     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 126 kb/s (default)
       >     Metadata:
       >       creation_time   : 2011-09-08 11:43:25 [libvpx @ 05392a80] v1.2.0 Output #0, mpegts, to 'udp://localhost:6789':   Metadata:
       >     major_brand     : isom
       >     minor_version   : 1
       >     compatible_brands: isom
       >     encoder         : Lavf55.16.102
       >     Stream #0:0(und): Video: vp8 (libvpx), yuv420p, 720x402 [SAR 1:1 DAR 120:67], q=-1--1, 200 kb/s, 90k tbn, 30 tbc (default)
       >     Metadata:
       >       creation_time   : 2011-09-08 11:43:25
       >     Stream #0:1(und): Audio: vorbis, 48000 Hz, stereo, fltp (default)
       >     Metadata:
       >       creation_time   : 2011-09-08 11:43:25 Stream mapping:   Stream #0:0 -> #0:0 (h264 -> libvpx)   Stream #0:1 -> #0:1 (aac -> vorbis) Press [q] to stop, [?] for help frame=42535 fps= 51 q=0.0 Lsize=
       > 143539kB time=00:23:38.28 bitrate= 829.1kbits/s dup=8541 drop=0    
       > video:99155kB audio:28125kB subtitle:0 global headers:3kB muxing
       > overhead 12.772155% Received signal 2: terminating.

    > on client    
    > ffplay version N-56165-gae12d65 Copyright (c) 2003-2013 the FFmpeg
    > developers   built on Sep 10 2013 19:42:46 with gcc 4.7.3 (GCC)  
    > configuration: --enable-gpl --enable-version3 --disable-w32threads
    > --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib   libavutil      52. 43.100 / 52. 43.100   libavcodec     55. 31.101 / 55. 31.101   libavformat    55. 16.102 / 55. 16.102   libavdevice    55.  3.100 / 55.  3.100   libavfilter     3. 84.100 /  3. 84.100   libswscale      2.  5.100 /
    > 2.  5.100   libswresample   0. 17.103 /  0. 17.103   libpostproc    52.  3.100 / 52.  3.100
    >     nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   [mpegts @ 02eb8620] probed stream 0 failed
    >     nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   [mp3 @ 02ed75a0] Header missing
    >     Last message repeated 1 times [mp3 @ 02ed75a0] Header missing
    >     La    Last message repeated 13 times
    >     nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   [mp3 @ 02ed75a0] Header missing  Last message repeated 13 times
    >     nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   [mp3 @ 02ed75a0] Header missing    Last message repeated 9 times
    >     nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   [mp3 @ 02ed75a0] Header missing [mpegts @ 02eb8620] decoding for
    > stream 1 failed [mpegts @ 02eb8620] Could not find codec parameters
    > for stream 0 (Unknown: none ([6][0][0][0] / 0x0006)): unknown codec
    > Consider increasing the value for the 'analyzeduration' and
    > 'probesize' options [mpegts @ 02eb8620] Could not find codec
    > parameters for stream 1 (Audio: mp3 ([6][0][0][0] / 0x0006), 0
    > channels, s16p): unspecified frame size Consider increasing the value
    > for the 'analyzeduration' and 'probesize' options
    > udp://localhost:6789: could not find codec parameters

    So does the point to point streaming for ffmpeg just doesn't work for vp8 or am i missing something ? Btw, the end goal is to create a similar video chat based framework and i'll appreciate any suggestion. I'm reading up on webRTC now.

  • How to transmux ismv file to mp4

    21 septembre 2013, par Priyal

    I wanted to convert ismv file to mp4 without any packet loss.

    I tried it with ffmpeg as :

    ffmpeg -i input.ismv output.mp4

    But the resultant mp4 file has some packet/frame loss due which video is distracted.

    ffmpeg command line return the following :

    Metadata: major_brand : isml minor_version : 1 compatible_brands: piffiso2 Duration: 00:03:57.18, start: 0.000000, bitrate: 1612 kb/s
    Stream #0:0(und): Audio: wmapro (b[1][0][0] / 0x0162), 44100 Hz, stereo, fltp, 64 kb/s (default)Metadata: creation_time : 2013-09-20 06:18:40 handler_name : Audio

    Stream #0:1(und): Video: vc1 (Advanced) (vc-1 / 0x312D6376), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 1343 kb/s, 30 tbr, 10000k tbn, 60 tbc (default) Metadata: creation_time : 2013-09-20 06:18:40

    Video Stream #0:2(und): Video: vc1 (Advanced) (vc-1 / 0x312D6376), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 887 kb/s, 30 fps, 30 tbr, 10000k tbn, 60 tbc (default) Metadata: creation_time : 2013-09-20 06:18:40 handler_name : Video

    Stream #0:3(und): Video: vc1 (Advanced) (vc-1 / 0x312D6376), yuv420p, 364x27 2 [SAR 136:136 DAR 91:68], 599 kb/s, 30 fps, 30 tbr, 10000k tbn, 60 tbc (default ) Metadata: creation_time : 2013-09-20 06:18:40 handler_name : Video

    Stream #0:4(und): Video: vc1 (Advanced) (vc-1 / 0x312D6376), yuv420p, 276x20 8 [SAR 207:208 DAR 14283:10816], 400 kb/s, 30 fps, 30 tbr, 10000k tbn, 60 tbc (d efault) Metadata: creation_time : 2013-09-20 06:18:40 handler_name : Video

    [wmapro @ 003fa000] Channel transform bit is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.

    Error while decoding stream #0:0: Invalid data found when processing input [wmapro @ 003fa000] frame[0] would have to skip -9 bits[wmapro @ 003fa000] Packet loss detected! seq e vs d [wmapro @ 003fa000] Packet loss detected! seq d vs f [wmapro @ 003fa000] Reserved bit is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented