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Médias (3)
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Valkaama DVD Cover Outside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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Valkaama DVD Label
4 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Image
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Valkaama DVD Cover Inside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
Autres articles (79)
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MediaSPIP Core : La Configuration
9 novembre 2010, parMediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...) -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ; -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (5536)
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Revision 37406 : Le cron toute les minutes Amélioration de pleins de petites choses ...
18 avril 2010, par kent1@… — LogLe cron toute les minutes
Amélioration de pleins de petites choses
Incrément mineur de la version -
H.264 encoded stream in MP4 container does not play right in WMP12 Windows 7
13 décembre 2019, par remusI’d like to figure out why my H.264 encoded stream in a MP4 container does not play back correctly in Window Media Player 12 in Windows 7. The file plays well in VLC and other players including WMP from Windows 10 but I’m just wondering why WMP12 from Win 7 does not play it.
It seems that only I-type frames are displayed and blank black frames are shown instead of all P-type frames in between. If I force my device encoder to produce only I-type frames then the file plays back ok in WMP12 (Win 7) but the size of the file increases too much. What are the limits of H.264 decoder in Windows 7 ?
I’m adding below
ffprobe -show_frames video.mp4
(just a few frames but there are no reported errors by ffprobe) :Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.83.100
Duration: 00:00:05.51, start: 0.024000, bitrate: 513 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 720x480, 510 kb/s, 30.11 fps, 59.94 tbr, 90k tbn, 180k tbc (default)
Metadata:
handler_name : VideoHandler
[FRAME]
media_type=video
stream_index=0
key_frame=1
pkt_pts=2160
pkt_pts_time=0.024000
pkt_dts=2160
pkt_dts_time=0.024000
best_effort_timestamp=2160
best_effort_timestamp_time=0.024000
pkt_duration=2340
pkt_duration_time=0.026000
pkt_pos=48
pkt_size=2979
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=I
coded_picture_number=0
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=4500
pkt_pts_time=0.050000
pkt_dts=4500
pkt_dts_time=0.050000
best_effort_timestamp=4500
best_effort_timestamp_time=0.050000
pkt_duration=4320
pkt_duration_time=0.048000
pkt_pos=3027
pkt_size=1662
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=1
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=8820
pkt_pts_time=0.098000
pkt_dts=8820
pkt_dts_time=0.098000
best_effort_timestamp=8820
best_effort_timestamp_time=0.098000
pkt_duration=3060
pkt_duration_time=0.034000
pkt_pos=4689
pkt_size=1073
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=2
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=11880
pkt_pts_time=0.132000
pkt_dts=11880
pkt_dts_time=0.132000
best_effort_timestamp=11880
best_effort_timestamp_time=0.132000
pkt_duration=2970
pkt_duration_time=0.033000
pkt_pos=5762
pkt_size=829
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=3
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=14850
pkt_pts_time=0.165000
pkt_dts=14850
pkt_dts_time=0.165000
best_effort_timestamp=14850
best_effort_timestamp_time=0.165000
pkt_duration=3060
pkt_duration_time=0.034000
pkt_pos=6591
pkt_size=987
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=4
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=17910
pkt_pts_time=0.199000
pkt_dts=17910
pkt_dts_time=0.199000
best_effort_timestamp=17910
best_effort_timestamp_time=0.199000
pkt_duration=2970
pkt_duration_time=0.033000
pkt_pos=7578
pkt_size=1344
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=5
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=20880
pkt_pts_time=0.232000
pkt_dts=20880
pkt_dts_time=0.232000
best_effort_timestamp=20880
best_effort_timestamp_time=0.232000
pkt_duration=2970
pkt_duration_time=0.033000
pkt_pos=8922
pkt_size=1850
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=6
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pkt_pts=23850
pkt_pts_time=0.265000
pkt_dts=23850
pkt_dts_time=0.265000
best_effort_timestamp=23850
best_effort_timestamp_time=0.265000
pkt_duration=3060
pkt_duration_time=0.034000
pkt_pos=10772
pkt_size=1972
width=720
height=480
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=7
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
[/FRAME]Please let me know if you spot any errors in these frames that might affect playback.
The encoded H.264 stream is created using Freescale libimxvpuapi and the MP4 container using ffmpeg.
More information on the file :
exiftool video.mp4
ExifTool Version Number : 10.10
File Name : video.mp4
Directory : .
File Size : 346 kB
File Modification Date/Time : 2018:10:02 11:27:20+02:00
File Access Date/Time : 2018:10:02 11:41:14+02:00
File Inode Change Date/Time : 2018:10:02 11:27:21+02:00
File Permissions : rw-r--r--
File Type : MP4
File Type Extension : mp4
MIME Type : video/mp4
Major Brand : MP4 Base Media v1 [IS0 14496-12:2003]
Minor Version : 0.2.0
Compatible Brands : isom, iso2, avc1, mp41
Movie Data Size : 351479
Movie Data Offset : 48
Movie Header Version : 0
Create Date : 0000:00:00 00:00:00
Modify Date : 0000:00:00 00:00:00
Time Scale : 1000
Duration : 5.51 s
Preferred Rate : 1
Preferred Volume : 100.00%
Preview Time : 0 s
Preview Duration : 0 s
Poster Time : 0 s
Selection Time : 0 s
Selection Duration : 0 s
Current Time : 0 s
Next Track ID : 2
Track Header Version : 0
Track Create Date : 0000:00:00 00:00:00
Track Modify Date : 0000:00:00 00:00:00
Track ID : 1
Track Duration : 5.51 s
Track Layer : 0
Track Volume : 0.00%
Matrix Structure : 1 0 0 0 1 0 0 0 1
Image Width : 720
Image Height : 480
Media Header Version : 0
Media Create Date : 0000:00:00 00:00:00
Media Modify Date : 0000:00:00 00:00:00
Media Time Scale : 90000
Media Duration : 5.51 s
Media Language Code : und
Handler Description : VideoHandler
Graphics Mode : srcCopy
Op Color : 0 0 0
Compressor ID : avc1
Source Image Width : 720
Source Image Height : 480
X Resolution : 72
Y Resolution : 72
Bit Depth : 24
Video Frame Rate : 30.109
Handler Type : Metadata
Handler Vendor ID : Apple
Encoder : Lavf57.83.100
Avg Bitrate : 510 kbps
Image Size : 720x480
Megapixels : 0.346
Rotation : 0Many thanks !
Please find a video sample here :
-
encoding with ffmpeg libx265 -pix_fmt gray gives unplayable vid
9 juin 2017, par netjiroWhat am I missing ?
I encode an old black and white film clip with ffmpeg libx265 passing -pix_fmt gray. The output is unplayable in both vlc and mplayer (linux), so I assume I’m missing something...encoding :
ffmpeg -i clip.mkv \
-c:v libx265 -preset slow -x265-params "crf=24" -pix_fmt gray \
-c:a libopus -b:a 64k \
-c:s copy \
out.mkvvlc errors :
[00007f8a3ddfe328] blend blend error: no matching alpha blending routine (chroma: RGBA -> GREY)
[00007f8a3ddfe328] core blend error: blending RGBA to GREY failed
... repeated ...mplayer errors :
Unexpected decoder output format Planar Y800
... repeated ...ffmpeg encoding output :
ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Gentoo 4.9.4 p1.0, pie-0.6.4)
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --docdir=/usr/share/doc/ffmpeg-3.2.4/html --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-march=native -O2 -pipe' --disable-static --enable-avfilter --enable-avresample --disable-stripping --enable-nonfree --enable-version3 --disable-indev=oss --disable-indev=jack --disable-outdev=oss --enable-version3 --enable-bzlib --disable-runtime-cpudetect --disable-debug --disable-gcrypt --disable-gnutls --disable-gmp --enable-gpl --enable-hardcoded-tables --enable-iconv --enable-lzma --enable-network --enable-openssl --enable-postproc --disable-libsmbclient --enable-ffplay --enable-sdl2 --enable-vaapi --enable-vdpau --enable-xlib --enable-libxcb --enable-libxcb-shm --enable-libxcb-xfixes --enable-zlib --enable-libcdio --disable-libiec61883 --disable-libdc1394 --disable-libcaca --enable-openal --enable-opengl --enable-libv4l2 --disable-libpulse --enable-libopencore-amrwb --enable-libopencore-amrnb --disable-libfdk-aac --enable-libopenjpeg --enable-libbluray --enable-libcelt --disable-libgme --disable-libgsm --disable-mmal --enable-libmodplug --enable-libopus --disable-libilbc --disable-librtmp --enable-libssh --enable-libschroedinger --enable-libspeex --enable-libvorbis --enable-libvpx --disable-libzvbi --disable-libbs2b --disable-chromaprint --disable-libebur128 --disable-libflite --disable-frei0r --disable-libfribidi --enable-fontconfig --disable-ladspa --disable-libass --enable-libfreetype --disable-librubberband --disable-libzimg --enable-libsoxr --enable-pthreads --enable-libvo-amrwbenc --enable-libmp3lame --disable-libkvazaar --disable-nvenc --disable-libopenh264 --enable-libsnappy --enable-libtheora --enable-libtwolame --enable-libwavpack --disable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --disable-amd3dnow --disable-amd3dnowext --disable-fma4 --disable-xop --cpu=host --disable-doc --disable-htmlpages --enable-manpages
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
x265 [info]: HEVC encoder version 2.2
x265 [info]: build info [Linux][GCC 4.9.4][64 bit] 8bit+10bit+12bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
x265 [info]: Unknown profile, Level-3.1 (Main tier)
x265 [warning]: No thread pool allocated, --wpp disabled
x265 [warning]: No thread pool allocated, --lookahead-slices disabled
x265 [info]: Slices : 1
x265 [info]: frame threads / pool features : 3 / none
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge : star / 57 / 3 / 3
x265 [info]: Keyframe min / max / scenecut / bias: 23 / 250 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt : 25 / 4 / 2
x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0
x265 [info]: References / ref-limit cu / depth : 4 / on / on
x265 [info]: AQ: mode / str / qg-size / cu-tree : 1 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress : CRF-24.0 / 0.60
x265 [info]: tools: rect limit-modes rd=4 psy-rd=2.00 rdoq=2 psy-rdoq=1.00
x265 [info]: tools: rskip signhide tmvp strong-intra-smoothing deblock sao
Output #0, matroska, to 'out.mkv':
Metadata:
encoder : Lavf57.56.101
Metadata:
Stream #0:0(eng): Video: hevc (libx265), gray, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 1k tbn, 23.98 tbc (default)
Metadata:
encoder : Lavc57.64.101 libx265
Stream #0:1(eng): Audio: opus (libopus) ([255][255][255][255] / 0xFFFFFFFF), 48000 Hz, stereo, flt, 64 kb/s (default)
Metadata:
encoder : Lavc57.64.101 libopus
Stream #0:2(eng): Subtitle: subrip (default)
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
Stream #0:1 -> #0:1 (eac3 (native) -> opus (libopus))
Stream #0:3 -> #0:2 (copy)
Press [q] to stop, [?] for help
frame= 1439 fps=7.0 q=-0.0 Lsize= 5356kB time=00:01:00.01 bitrate= 731.1kbits/s speed=0.294x
video:4940kB audio:382kB subtitle:1kB other streams:0kB global headers:2kB muxing overhead: 0.629434%
x265 [info]: frame I: 9, Avg QP:22.27 kb/s: 6064.82
x265 [info]: frame P: 340, Avg QP:23.62 kb/s: 1950.21
x265 [info]: frame B: 1090, Avg QP:29.65 kb/s: 230.75
x265 [info]: Weighted P-Frames: Y:0.9% UV:0.0%
x265 [info]: consecutive B-frames: 2.9% 0.3% 1.4% 72.5% 22.9%