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    Puis-je poster des contenus à partir d’une tablette Ipad ?
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  • Playing videos on iPhone after video conversion using ffmpeg

    12 July 2013, by Shashi

    It is a backend API(developed in Ruby on Rails) which is used by iphone and android mobiles to upload the videos. API is converting uploaded videos to MP4 format. I am using paperclip-ffmpeg gem for video conversion at backend. Here is what I used:

    has_attached_file :video , 
    
              :styles=>{
    
                :medium=>{ :geometry=>"480x360",:format=>'mp4',:streaming => true,
    
                    :convert_options => { :output => 
    
                                        {
    
                                          :acodec => 'aac',
    
                                          :ac => 2 ,
    
                                          :strict => 'experimental',
    
                                          'b:a' => '160k',
    

    
                                          :vcodec => 'libx264',
    
                                          :preset => 'slow',
    
                                          'profile:v' => 'baseline',
    
                                          :level => '30',
    
                                          :maxrate => '10000000',
    
                                          :bufsize => '10000000',
    
                                          'b:v' => '750k',
    
                                          :f => 'mp4',
    
                                          :threads => '0'
    
                                        } 
    
                                    } },
    
                  :thumb => { :geometry => "160x120", :format => 'jpg', :time => 2 },
    
                  :thumb_large => { :geometry => "520x390", :format => 'jpg', :time => 2}
    
                }, :processors => [:ffmpeg, :qtfaststart],
    
        :path => path/to/store/video,
    
        :url => url/of/video

    Problems I am facing are:

    When user uploads videos from android mobile it works perfect on android but does not play on iPhone. One more strange thing happens when user upload videos from iPhone, then it play perfect just after video upload, but after some time(2 or 3 hours) it stops to play those videos.

    How can I get rid of both these issues? Any suggestion would be appreciated. Thanks

    @Michael, here is the detailed log for the video conversion uploaded by android mobile

    ffmpeg version git-2013-05-28-ced0307 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on May 28 2013 07:45:18 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 34.100 / 52. 34.100
    
  libavcodec     55. 12.100 / 55. 12.100
    
  libavformat    55.  7.100 / 55.  7.100
    
  libavdevice    55.  1.101 / 55.  1.101
    
  libavfilter     3. 72.100 /  3. 72.100
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 0
    
    compatible_brands: isom3gp4
    
    creation_time   : 2013-06-19 15:39:02
    
  Duration: 00:00:25.88, start: 0.000000, bitrate: 16700 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16829 kb/s, 29.75 fps, 30 tbr, 90k tbn, 180k tbc
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2013-06-19 15:39:02
    
      handler_name    : VideoHandle
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 122 kb/s
    
    Metadata:
    
      creation_time   : 2013-06-19 15:39:02
    
      handler_name    : SoundHandle
    
[libx264 @ 0x2613c00] using cpu capabilities: MMX2 SSE2Fast SSEMisalign LZCNT
    
[libx264 @ 0x2613c00] profile Constrained Baseline, level 3.0
    
[libx264 @ 0x2613c00] 264 - core 133 r2 a3ac64b - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=3 lookahead_threads=1 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=750 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 '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 0
    
    compatible_brands: isom3gp4
    
    encoder         : Lavf55.7.100
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360, q=-1--1, 750 kb/s, 15360 tbn, 30 tbc
    
    Metadata:
    
      rotate          : 90
    
      creation_time   : 2013-06-19 15:39:02
    
      handler_name    : VideoHandle
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 160 kb/s
    
    Metadata:
    
      creation_time   : 2013-06-19 15:39:02
    
      handler_name    : SoundHandle
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (aac -> aac)
    
Press [q] to stop, [?] for help
    
frame=  765 fps= 19 q=-1.0 Lsize=    2621kB time=00:00:25.88 bitrate= 829.4kbits/s dup=7 drop=0    
    
video:2093kB audio:504kB subtitle:0 global headers:0kB muxing overhead 0.878228%
    
[libx264 @ 0x2613c00] frame I:4     Avg QP:25.48  size: 11731
    
[libx264 @ 0x2613c00] frame P:761   Avg QP:26.71  size:  2754
    
[libx264 @ 0x2613c00] mb I  I16..4: 33.0%  0.0% 67.0%
    
[libx264 @ 0x2613c00] mb P  I16..4:  2.1%  0.0%  0.9%  P16..4: 47.2%  9.5%  3.4%  0.0%  0.0%    skip:36.9%
    
[libx264 @ 0x2613c00] final ratefactor: 23.58
    
[libx264 @ 0x2613c00] coded y,uvDC,uvAC intra: 31.9% 54.5% 9.5% inter: 11.9% 24.4% 0.5%
    
[libx264 @ 0x2613c00] i16 v,h,dc,p: 25% 33%  7% 34%
    
[libx264 @ 0x2613c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 14%  9% 14% 10% 10% 11%  8%  7%
    
[libx264 @ 0x2613c00] i8c dc,h,v,p: 50% 25% 17%  9%
    
[libx264 @ 0x2613c00] ref P L0: 67.6% 15.2% 10.1%  3.9%  3.2%
    
[libx264 @ 0x2613c00] kb/s:672.30
    
ffmpeg version git-2013-05-28-ced0307 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on May 28 2013 07:45:18 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 34.100 / 52. 34.100
    
  libavcodec     55. 12.100 / 55. 12.100
    
  libavformat    55.  7.100 / 55.  7.100
    
  libavdevice    55.  1.101 / 55.  1.101
    
  libavfilter     3. 72.100 /  3. 72.100 octet-stream\r\n" name="video" tempfile=#tmp/RackMultipart20130620-28711-187049m>>
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.7.100
    
  Duration: 00:00:25.91, start: 0.021333, bitrate: 828 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360, 672 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    
    Metadata:
    
      rotate          : 90
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 159 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
[libx264 @ 0x326d820] using cpu capabilities: MMX2 SSE2Fast SSEMisalign LZCNT
    
[libx264 @ 0x326d820] profile Constrained Baseline, level 3.0
    
[libx264 @ 0x326d820] 264 - core 133 r2 a3ac64b - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=3 lookahead_threads=1 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=750 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 '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-130rd1i.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.7.100
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 480x270, q=-1--1, 750 kb/s, 15360 tbn, 30 tbc
    
    Metadata:
    
      rotate          : 90
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 160 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (aac -> aac)
    
Press [q] to stop, [?] for help
    
frame=  766 fps= 38 q=-1.0 Lsize=    2666kB time=00:00:25.90 bitrate= 843.2kbits/s dup=1 drop=0    
    
video:2138kB audio:505kB subtitle:0 global headers:0kB muxing overhead 0.863633%
    
[libx264 @ 0x326d820] frame I:4     Avg QP:20.82  size: 11283
    
[libx264 @ 0x326d820] frame P:762   Avg QP:22.03  size:  2813
    
[libx264 @ 0x326d820] mb I  I16..4: 19.9%  0.0% 80.1%
    
[libx264 @ 0x326d820] mb P  I16..4:  1.7%  0.0%  1.1%  P16..4: 49.3% 20.6%  7.0%  0.0%  0.0%    skip:20.3%
    
[libx264 @ 0x326d820] final ratefactor: 19.24
    
[libx264 @ 0x326d820] coded y,uvDC,uvAC intra: 43.4% 76.7% 29.0% inter: 23.0% 44.6% 1.7%
    
[libx264 @ 0x326d820] i16 v,h,dc,p: 23% 29%  9% 39%
    
[libx264 @ 0x326d820] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 21%  9% 11% 10% 10% 11%  8%  8%
    
[libx264 @ 0x326d820] i8c dc,h,v,p: 44% 26% 18% 12%
    
[libx264 @ 0x326d820] ref P L0: 74.0% 13.1%  7.7%  3.0%  2.1%
    
[libx264 @ 0x326d820] kb/s:685.81
    
ffmpeg version git-2013-05-28-ced0307 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on May 28 2013 07:45:18 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 34.100 / 52. 34.100
    
  libavcodec     55. 12.100 / 55. 12.100
    
  libavformat    55.  7.100 / 55.  7.100
    
  libavdevice    55.  1.101 / 55.  1.101
    
  libavfilter     3. 72.100 /  3. 72.100
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.7.100
    
  Duration: 00:00:25.91, start: 0.021333, bitrate: 828 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360, 672 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    
    Metadata:
    
      rotate          : 90
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 159 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Output #0, image2, to '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-1bdslpu.jpg':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.7.100
    
    Stream #0:0(eng): Video: mjpeg, yuvj420p, 160x90, q=2-31, 200 kb/s, 90k tbn, 30 tbc
    
    Metadata:
    
      rotate          : 90
    
      handler_name    : VideoHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> mjpeg)
    
Press [q] to stop, [?] for help
    
frame=    1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.03 bitrate=N/A dup=0 drop=57    
    
video:4kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.479303%
    
ffmpeg version git-2013-05-28-ced0307 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on May 28 2013 07:45:18 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 34.100 / 52. 34.100
    
  libavcodec     55. 12.100 / 55. 12.100
    
  libavformat    55.  7.100 / 55.  7.100
    
  libavdevice    55.  1.101 / 55.  1.101
    
  libavfilter     3. 72.100 /  3. 72.100
    
  libswscale      2.  3.100 /  2.  3.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.7.100
    
  Duration: 00:00:25.91, start: 0.021333, bitrate: 828 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360, 672 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
    
    Metadata:
    
      rotate          : 90
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 159 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Output #0, image2, to '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-1vp4al6.jpg':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.7.100
    
    Stream #0:0(eng): Video: mjpeg, yuvj420p, 520x292, q=2-31, 200 kb/s, 90k tbn, 30 tbc
    
    Metadata:
    
      rotate          : 90
    
      handler_name    : VideoHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> mjpeg)
    
Press [q] to stop, [?] for help
    
frame=    1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.03 bitrate=N/A dup=0 drop=57    
    
video:19kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.113677%
    

    

    
Started POST "/api/v1/videos/create" for 69.42.0.13 at 2013-06-20 09:41:50 -0500
    
Command :: file -b --mime '/tmp/RackMultipart20130620-28711-187049m'
    
[paperclip] [ffmpeg] ffmpeg -i "/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l" 2>&1
    
[paperclip] [ffmpeg] Command Success
    
[paperclip] [ffmpeg] Making...
    
[paperclip] [ffmpeg] Building Destination File: 'RackMultipart20130620-28711-187049m20130620-28711-2x7b7l' + 'mp4'
    
[paperclip] [ffmpeg] Destination File Built
    
[paperclip] [ffmpeg] Adding Geometry
    
[paperclip] [ffmpeg] Extracting Target Dimensions
    
[paperclip] [ffmpeg] Target Size is Available
    
[paperclip] [ffmpeg] Keeping Aspect Ratio
    
[paperclip] [ffmpeg] Resize
    
[paperclip] [ffmpeg] Convert Options: 640x360
    
[paperclip] [ffmpeg] Adding Format
    
[paperclip] [ffmpeg] Adding Source
    
[paperclip] [ffmpeg] Building Parameters
    
[paperclip] [ffmpeg] -i :source -acodec aac -ac 2 -strict experimental -b:a 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b:v 750k -f mp4 -threads 0 -s 640x360 -y :dest
    
Command :: ffmpeg -i '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l' -acodec aac -ac 2 -strict experimental -b:a 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b:v 750k -f mp4 -threads 0 -s 640x360 -y '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p.mp4'
    
[paperclip] [qt-faststart] :source :dest
    
Command :: qt-faststart '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p.mp4' '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl.mp4'
    
[paperclip] [ffmpeg] ffmpeg -i "/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4" 2>&1
    
[paperclip] [ffmpeg] Command Success
    
[paperclip] [ffmpeg] Making...
    
[paperclip] [ffmpeg] Building Destination File: 'RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06' + 'mp4'
    
[paperclip] [ffmpeg] Destination File Built
    
[paperclip] [ffmpeg] Adding Geometry
    
[paperclip] [ffmpeg] Extracting Target Dimensions
    
[paperclip] [ffmpeg] Target Size is Available
    
[paperclip] [ffmpeg] Keeping Aspect Ratio
    
[paperclip] [ffmpeg] Resize
    
[paperclip] [ffmpeg] Convert Options: 480x270
    
[paperclip] [ffmpeg] Adding Format
    
[paperclip] [ffmpeg] Adding Source
    
[paperclip] [ffmpeg] Building Parameters
    
[paperclip] [ffmpeg] -i :source -acodec aac -ac 2 -strict experimental -b:a 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b:v 750k -f mp4 -threads 0 -s 480x270 -y :dest
    
Command :: ffmpeg -i '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4' -acodec aac -ac 2 -strict experimental -b:a 160k -vcodec libx264 -preset slow -profile:v baseline -level 30 -maxrate 10000000 -bufsize 10000000 -b:v 750k -f mp4 -threads 0 -s 480x270 -y '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-130rd1i.mp4'
    
[paperclip] [qt-faststart] :source :dest
    
Command :: qt-faststart '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-130rd1i.mp4' '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-130rd1i20130620-28711-snde6v.mp4'
    
[paperclip] [ffmpeg] ffmpeg -i "/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4" 2>&1
    
[paperclip] [ffmpeg] Command Success
    
[paperclip] [ffmpeg] Making...
    
[paperclip] [ffmpeg] Building Destination File: 'RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06' + 'jpg'
    
[paperclip] [ffmpeg] Destination File Built
    
[paperclip] [ffmpeg] Adding Geometry
    
[paperclip] [ffmpeg] Extracting Target Dimensions
    
[paperclip] [ffmpeg] Target Size is Available
    
[paperclip] [ffmpeg] Keeping Aspect Ratio
    
[paperclip] [ffmpeg] Resize
    
[paperclip] [ffmpeg] Convert Options: 160x90
    
[paperclip] [ffmpeg] Adding Format
    
[paperclip] [ffmpeg] Adding Source
    
[paperclip] [ffmpeg] Building Parameters
    
[paperclip] [ffmpeg] -ss 2 -i :source -s 160x90 -vframes 1 -f image2 -y :dest
    
Command :: ffmpeg -ss 2 -i '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4' -s 160x90 -vframes 1 -f image2 -y '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-1bdslpu.jpg'
    
[paperclip] [ffmpeg] ffmpeg -i "/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4" 2>&1
    
[paperclip] [ffmpeg] Command Success
    
[paperclip] [ffmpeg] Making...
    
[paperclip] [ffmpeg] Building Destination File: 'RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06' + 'jpg'
    
[paperclip] [ffmpeg] Destination File Built
    
[paperclip] [ffmpeg] Adding Geometry
    
[paperclip] [ffmpeg] Extracting Target Dimensions
    
[paperclip] [ffmpeg] Target Size is Available
    
[paperclip] [ffmpeg] Keeping Aspect Ratio
    
[paperclip] [ffmpeg] Resize
    
[paperclip] [ffmpeg] Convert Options: 520x292
    
[paperclip] [ffmpeg] Adding Format
    
[paperclip] [ffmpeg] Adding Source
    
[paperclip] [ffmpeg] Building Parameters
    
[paperclip] [ffmpeg] -ss 2 -i :source -s 520x292 -vframes 1 -f image2 -y :dest
    
Command :: ffmpeg -ss 2 -i '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi06.mp4' -s 520x292 -vframes 1 -f image2 -y '/tmp/RackMultipart20130620-28711-187049m20130620-28711-2x7b7l20130620-28711-uibd1p20130620-28711-1tgemjl20130620-28711-15qsi0620130620-28711-1vp4al6.jpg'
    
[paperclip] Saving attachments.

  • iPhone HTTP Streaming .m3u8 and .ts files - how to create using ffmpeg

    8 September 2013, by ChessDev

    I'm trying to get apple-validated http media streams using ffmpeg and am getting errors. Here are some error examples:

    WARNING: Playlist Content-Type is 'application/x-mpegurl', but should
    be one of 'application/vnd.apple.mpegurl', 'audio/x-mpegurl' or
    'audio/mpegurl'.

    WARNING: 258 samples (88.966 %) do not have timestamps in track 256
    (avc1). 4: us2-1.ts
     

    WARNING: Media segment duration outside of expected duration by 47.733
     % (5.23 vs. 10.00 seconds, limit is 20 %). 40: us2-19.ts
     

    Average segment duration: 10.16 seconds
    
Average segment bitrate: 320.12 kbit/s
    
Average segment structural overhead: 175.89 kbit/s (54.94 %)
    

    
Video codec: avc1
    
Video resolution: 320x320 pixels
    
Video frame rate: 29.72, 29.78, 29.82, 30.00, 29.64 fps
    
Average video bitrate: 100.66 kbit/s
    
H.264 profile: Baseline
    
H.264 level: 3.0
    

    
Audio codec: aac 
    
Audio sample rate: 48000 Hz
    
Average audio bitrate: 43.57 kbit/s

    Here is the end file I've been submitting: http://files.chesscomfiles.com/images_users/using/us2.m3u8

    Here is the file I used to create this: http://files.chesscomfiles.com/images_users/using/using-computers-1.mp4

    I've tried these commands, among others:

    ffmpeg -i using-computers-1.mp4 -f mpegts -acodec libfaac -ar 48000
    -ab 64k -s 320x320 -vcodec libx264 -vbsf h264_mp4toannexb -b 96k -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 5 -trellis 1 -refs 1 -coder 0 -me_range 16 -keyint_min 2 -sc_threshold 40 -i_qfactor 0.71 -bt 200k -maxrate 96k -bufsize 96k -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -g 30 -async 2 us2.ts

    ffmpeg -i using-computers-1.mp4 -f mpegts -acodec libfaac -ar 48000
    -ab 64k -s 320x320 -vcodec libx264 -vbsf h264_mp4toannexb -b 96k -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 5 -trellis 1 -refs 1 -coder 0 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 200k -maxrate 96k -bufsize 96k -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -g 30 -async 2 us1.ts

    ffmpeg -i using-computers-1.mp4 -vbsf h264_mp4toannexb -acodec copy -vcodec copy -f mpegts output.ts

    If someone can help me figure out what ffmpeg commands I should be running I'd really appreciate it!

  • Truncate / Trim audio file using start and stop times [duplicate]

    19 June 2019, by richierich

    This question already has an answer here:

    I am attempting to truncate a .wav file from any length to 1 minute by using the ffmpeg package. once truncated, I want to save the file in another directory.

    I am able to do so with he following command:

    ffmpeg -i ~/test/audio.wav -ss 00:00:00 -t 00:01:00 -async 1 ~/test/test-minute/*.wav

    But my issue is that I would like to be able to iterate through multiple files within my /test directory and truncate each .wav file, then place the new file in the new /test/test-minute directory.

    Also, I would like to keep the same name for each file when it is created in the new directory. Thus, when a copy of audio.wav is truncated to 1 minute, the new file will also be named audio.wav in the other directory.

    In short, how do I perform the truncate process across the entire directory ?

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