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 <Hashie::Mash groups="{\"groups\":[0]}" post="uploaded from android" route_info=version=v1, method=POST, path=/:version/videos/create(.:format) user_id=31 version="v1" video=#<Hashie::Mash filename="video" head="Content-Disposition: form-data; name=\"video\"; filename=\"video\"\r\nContent-Type: application/octet-stream\r\n" name="video" tempfile=#<File:/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.