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Médias (1)
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Sintel MP4 Surround 5.1 Full
13 mai 2011, par
Mis à jour : Février 2012
Langue : English
Type : Video
Autres articles (112)
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Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
Déploiements possibles
31 janvier 2010, parDeux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
Version mono serveur
La version mono serveur consiste à n’utiliser qu’une (...) -
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.
Sur d’autres sites (6212)
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iPhone HTTP Streaming .m3u8 and .ts files - how to create using ffmpeg
8 septembre 2013, par ChessDevI'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.tsffmpeg -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.tsffmpeg -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 !
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Playing videos on iPhone after video conversion using ffmpeg
12 juillet 2013, par ShashiIt 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/videoProblems 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. -
flv reencode to mp4 for iphone/ipod via ffmpeg and x264 (quality issue)
3 octobre 2011, par zeroasteriskThere are a lot of questions on this topic, and I've read most of them and most of the google search results I could come up with.
When I use FFMPEG to convert a FLV to a iphone3 compatble MP4 file, it just doesn't preserver enough of the quality. Yes, I've worked the hell out of
-sameqand-band-btsettings, text just isn't readable.Next I tried to split the video out and process it directly, using these instructions :
https://sites.google.com/site/linuxencoding/x264-encoding-guideThe problem is myplayer (via ffmpeg) was not able to determine the duration of the FLV (even though the metadata was set).
(I assume) Because of that unknown duration, when I create the MP4 file, the resulting x264 file plays through super-fast while the audio plays at the normal rate.
user@server:/tmp# mplayer -nosound -benchmark -sws 9 -vf dsize=640:480:0,scale=0:0,expand=640:480 -vo yuv4mpeg:file=>(x264 --demuxer y4m --crf 0 --preset slow --threads auto --output output.264 - 2>x264.log) 'input.flv'
MPlayer 1.0rc4-4.4.5 (C) 2000-2010 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing input.flv.
libavformat file format detected.
[flv @ 0x1202460]Estimating duration from bitrate, this may be inaccurate
[lavf] stream 0: video (vp6f), -vid 0
[lavf] stream 1: audio (nellymoser), -aid 0
VIDEO: [VP6F] 1680x992 0bpp 1000.000 fps 33.4 kbps ( 4.1 kbyte/s)
Clip info:
audiocodecid: 6
audiodatarate: 86
audiosamplerate: 44100
audiosamplesize: 16
audiosize: 6097005
canSeekToEnd: true
datasize: 8609138
duration: 567
framerate: 2
hasAudio: true
hasCuePoints: false
hasKeyframes: true
hasMetadata: true
hasVideo: true
height: 992
lasttimestamp: 567
metadatacreator: flvtool++ (Facebook, Motion project, dweatherford)
stereo: false
totalframes: 1043
videocodecid: 4
videodatarate: 33
videosize: 2316256
width: 1680
Using (default) progressive frame mode.Opening video filter: [expand w=640 h=480]
Expand: 640 x 480, -1 ; -1, osd: 0, aspect: 0.000000, round: 1
Opening video filter: [scale w=0 h=0]
Opening video filter: [dsize=640:480:0]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffvp6f] vfm: ffmpeg (FFmpeg VP6 Flash)
==========================================================================
Audio: no sound
Starting playback...
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0x7f0c738b9620]Lanczos scaler, from yuv420p to yuv420p using MMX2
VO: [yuv4mpeg] 640x480 => 641x480 Planar YV12I have also tried specifying FPS, but no change in results
user@server:/tmp# mplayer -nosound -fps 25-benchmark -sws 9 -vf dsize=640:480:0,scale=0:0,expand=640:480 -vo yuv4mpeg:file=>(x264 --demuxer y4m --fps 25 --crf 0 --preset slow --threads auto --output output.264 - 2>x264.log) 'input.flv'Can someone tell me how to either :
- fix my split A/V processing/timing/duration issues ?
- improve the
quality of the FFMPEG conversion of FLV to iphone3 compatible
format ?
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