Recherche avancée
Autres articles (20)
-
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...)
Sur d’autres sites (5104)
-
Ffmpeg stream works from cli but not inside bash script, no errors
21 juillet 2022, par Sidharth RaoI'm running an Ffmpeg stream on Ubuntu writing to an rtp address, and it appears to work perfectly from my cli every time but fails to actually write anything from inside a bash script. After running from inside the cli, the bash script works every time I run it for about the next 5 minutes and then starts failing without errors again.


Here is the command :


ffmpeg -i video.mp4 -fflags nobuffer -flags low_delay -s 640x480 -c:v libx264 -profile:v baseline -b:v 2M -r 24 -g 60 -an -rtsp_transport tcp -f rtp rtp://CENSOREDCENSORED:0000


Here is the bash script :


#!/bin/bash

ffmpeg -i video.mp4 -fflags nobuffer -flags low_delay -s 640x480 -c:v libx264 -profile:v baseline -b:v 2M -r 24 -g 60 -an -rtsp_transport tcp -f rtp rtp://CENSOREDCENSORED:0000


And here is the same output to cli for both of them :


ffmpeg version 3.4.11-0ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
 configuration: --prefix=/usr --extra-version=0ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
 libavutil 55. 78.100 / 55. 78.100
 libavcodec 57.107.100 / 57.107.100
 libavformat 57. 83.100 / 57. 83.100
 libavdevice 57. 10.100 / 57. 10.100
 libavfilter 6.107.100 / 6.107.100
 libavresample 3. 7. 0 / 3. 7. 0
 libswscale 4. 8.100 / 4. 8.100
 libswresample 2. 9.100 / 2. 9.100
 libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.76.100
 Duration: 00:00:26.00, start: 0.000000, bitrate: 227 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480, 226 kb/s, 2.31 fps, 2.31 tbr, 18464 tbn, 4.62 tbc (default)
 Metadata:
 handler_name : VideoHandler
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x5585318623c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x5585318623c0] profile Constrained Baseline, level 3.0
Output #0, rtp, to 'rtp://us.robotics.cognitedata.com:5005':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf57.83.100
 Stream #0:0(und): Video: h264 (libx264), yuv420p, 640x480, q=-1--1, 2000 kb/s, 24 fps, 90k tbn, 24 tbc (default)
 Metadata:
 handler_name : VideoHandler
 encoder : Lavc57.107.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 0 vbv_delay: -1
SDP:
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
c=IN IP4 20.232.153.224
t=0 0
a=tool:libavformat 57.83.100
m=video 5005 RTP/AVP 96
b=AS:2000
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1

frame= 624 fps=194 q=-1.0 Lsize= 6288kB time=00:00:25.95 bitrate=1984.3kbits/s dup=564 drop=0 speed=8.08x
video:6226kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.992690%
[libx264 @ 0x5585318623c0] frame I:11 Avg QP: 2.77 size:132437
[libx264 @ 0x5585318623c0] frame P:613 Avg QP: 4.97 size: 8024
[libx264 @ 0x5585318623c0] mb I I16..4: 20.2% 0.0% 79.8%
[libx264 @ 0x5585318623c0] mb P I16..4: 0.8% 0.0% 2.0% P16..4: 12.3% 1.0% 1.2% 0.0% 0.0% skip:82.6%
[libx264 @ 0x5585318623c0] final ratefactor: 6.07
[libx264 @ 0x5585318623c0] coded y,uvDC,uvAC intra: 87.7% 87.0% 68.2% inter: 8.6% 7.0% 6.6%
[libx264 @ 0x5585318623c0] i16 v,h,dc,p: 34% 15% 41% 10%
[libx264 @ 0x5585318623c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 24% 13% 3% 3% 3% 4% 3% 4%
[libx264 @ 0x5585318623c0] i8c dc,h,v,p: 36% 22% 37% 6%
[libx264 @ 0x5585318623c0] ref P L0: 97.5% 1.9% 0.6%
[libx264 @ 0x5585318623c0] kb/s:1961.69


The ffmpeg stream also fails from inside of a docker image.


-
ffmpeg convert from H.264 (High 4:2:2 Profile) MOV to H.264 (Baseline Profile) MP4
26 juillet 2022, par froniqHow can I convert a video (MOV) from H.264 (High 4:2:2 Profile) to H.264 (Baseline Profile) MP4 using ffmpeg ?
I would run that mp4 video on android mobile in a VideoView to support as many mobile types as possible.


I can't do that with this command : ffmpeg -i o1.mov -c:v libx264 -profile:v baseline -c:a aac -ar 44100 -ac 2 -b:a 128k out.mp4.


That'd return an error :


ffmpeg version 5.0.1-essentials_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 11.2.0 (Rev7, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
 libavutil 57. 17.100 / 57. 17.100
 libavcodec 59. 18.100 / 59. 18.100
 libavformat 59. 16.100 / 59. 16.100
 libavdevice 59. 4.100 / 59. 4.100
 libavfilter 8. 24.100 / 8. 24.100
 libswscale 6. 4.100 / 6. 4.100
 libswresample 4. 3.100 / 4. 3.100
 libpostproc 56. 3.100 / 56. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'o1.mov':
 Metadata:
 major_brand : qt
 minor_version : 537199360
 compatible_brands: qt
 creation_time : 2022-07-19T16:56:39.000000Z
 Duration: 00:00:07.72, start: 0.000000, bitrate: 117473 kb/s
 Stream #0:0[0x1](eng): Video: prores (Standard) (apcn / 0x6E637061), yuv422p10le(tv, bt709, progressive), 1080x1920, 114850 kb/s, SAR 1:1 DAR 9:16, 23.98 fps, 23.98 tbr, 24k tbn (default)
 Metadata:
 creation_time : 2022-07-19T16:56:39.000000Z
 handler_name : Apple Video Media Handler
 vendor_id : appl
 encoder : Apple ProRes 422
 timecode : 00:00:00:04
 Stream #0:1[0x2](eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
 Metadata:
 creation_time : 2022-07-19T16:56:39.000000Z
 handler_name : Apple Sound Media Handler
 vendor_id :
 timecode : 00:00:00:04
 Stream #0:2[0x3](eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
 Metadata:
 creation_time : 2022-07-19T16:56:39.000000Z
 handler_name : Time Code Media Handler
 timecode : 00:00:00:04
Stream mapping:
 Stream #0:0 -> #0:0 (prores (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
x264 [error]: baseline profile doesn't support 4:2:2
[libx264 @ 0000014713a31ac0] Error setting profile baseline.
[libx264 @ 0000014713a31ac0] Possible profiles: baseline main high high10 high422 high444
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!


-
get specific metadata with ffprobe
1er mai, par mikemI'm having a terrible time getting one single line of metadata from ffprobe.


I'm running this command :




ffprobe -show_entries 'stream_tags :
format_tags=com.apple.quicktime.creationdate' -loglevel error
IMG_9931.MOV




And I get this output




[STREAM]


TAG:creation_time=2022-05-14T20:24:55.000000Z


TAG:language=und


TAG:handler_name=Core Media Video


TAG:encoder=H.264


[/STREAM]


[STREAM]


TAG:creation_time=2022-05-14T20:24:55.000000Z


TAG:language=und


TAG:handler_name=Core Media Audio


[/STREAM]


[STREAM]


TAG:creation_time=2022-05-14T20:24:55.000000Z


TAG:language=und


TAG:handler_name=Core Media Metadata


[/STREAM]


[STREAM]


TAG:creation_time=2022-05-14T20:24:55.000000Z


TAG:language=und


TAG:handler_name=Core Media Metadata


[/STREAM]


[STREAM]


TAG:creation_time=2022-05-14T20:24:55.000000Z


TAG:language=und


TAG:handler_name=Core Media Metadata


[/STREAM]


[FORMAT]


TAG:com.apple.quicktime.creationdate=2022-05-14T16:24:55-0400


[/FORMAT]




But the only thing I want returned is




com.apple.quicktime.creationdate=2022-05-14T16:24:55-0400




I've searched and searched but I can't find any examples of pulling a single specific value of metadata.


In actuality, I really just want the value of com.apple.quicktime.creationdate... ie "2022-05-14T16:24:55-0400"


I know I can grep and awk my way through it, but it seems like there should be a way to do it with ffprobe alone given all of the options it has. I just can't figure out how.


How can I do this ? Any help would be appreciated.


Syndiquer tout le site
