Recherche avancée
Autres articles (48)
-
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...) -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
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 (9430)
-
Is it possible to force ffmpeg to use hardware decoding with H.264 input stream ?
27 août 2018, par Ryan GriggsI am running a raspberry pi 3B with ffmpeg compiled with the —enable-omx-rpi option. I am trying to do frame-capture from a webcam stream (h.264, 1920x1080) to JPG files at 5 frames per second. This operation currently causes the board to show very high CPU utilization and get very hot. For this reason, I am assuming hardware decoder is not being utilized.
Is there a way to 1) determine whether ffmpeg is using hardware decoding, and 2) force it to be enabled ?
EDIT : here’s the log :
ffmpeg -probesize 4096 -analyzeduration 10000 -threads 1 -i rtsp://192.168.1.88:554/11 -vf fps=fps=5 -y test%03d.png
ffmpeg version 3.2.10-1~deb9u1+rpt1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1+rpt1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libxvid --enable-libzmq --enable-libzvbi --enable-omx-rpi --enable-mmal --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
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
[rtsp @ 0x1d9b630] Stream #0: not enough frames to estimate rate; consider increasing probesize
[rtsp @ 0x1d9b630] decoding for stream 0 failed
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://192.168.1.88:554/11':
Metadata:
title : 10
Duration: N/A, bitrate: 64 kb/s
Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, 90k tbr, 90k tbn, 180k tbc
Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
[swscaler @ 0x1e50a80] No accelerated colorspace conversion found from yuv420p to rgb24.
Output #0, image2, to 'test%03d.png':
Metadata:
title : 10
encoder : Lavf57.56.101
Stream #0:0: Video: png, rgb24, 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
Metadata:
encoder : Lavc57.64.101 png
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
[rtsp @ 0x1d9b630] max delay reached. need to consume packetN/A speed= 0x
[rtsp @ 0x1d9b630] RTP: missed 13 packets
[h264 @ 0x1dfb650] error while decoding MB 24 3, bytestream -5
[h264 @ 0x1dfb650] concealing 7825 DC, 7825 AC, 7825 MV errors in P frame
[rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 88 packets
[h264 @ 0x1dfb650] error while decoding MB 38 41, bytestream -11
[h264 @ 0x1dfb650] concealing 3251 DC, 3251 AC, 3251 MV errors in P frame
frame= 4 fps=2.2 q=-0.0 size=N/A time=00:00:00.20 bitrate=N/A speed=0.111x [h264 @ 0x1dfb650] Increasing reorder buffer to 1
frame= 4 fps=0.8 q=-0.0 size=N/A time=00:00:00.20 bitrate=N/A speed=0.0413x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 30 packets
[h264 @ 0x1dfb650] error while decoding MB 37 5, bytestream -9
[h264 @ 0x1dfb650] concealing 7572 DC, 7572 AC, 7572 MV errors in P frame
frame= 5 fps=0.9 q=-0.0 size=N/A time=00:00:00.40 bitrate=N/A speed=0.069x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 34 packets
[h264 @ 0x1dfb650] error while decoding MB 98 4, bytestream -9
[h264 @ 0x1dfb650] concealing 7631 DC, 7631 AC, 7631 MV errors in P frame
frame= 6 fps=0.9 q=-0.0 size=N/A time=00:00:00.60 bitrate=N/A speed=0.0894x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 30 packets
[h264 @ 0x1dfb650] error while decoding MB 20 10, bytestream -9
[h264 @ 0x1dfb650] concealing 6989 DC, 6989 AC, 6989 MV errors in P frame
frame= 6 fps=0.8 q=-0.0 size=N/A time=00:00:00.60 bitrate=N/A speed=0.0808x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 3357 packets
[rtsp @ 0x1d9b630] RTP: PT=60: bad cseq 0fed expected=02d0
[rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 3358 packets
[h264 @ 0x1dfb650] concealing 3400 DC, 3400 AC, 3400 MV errors in P frame
frame= 8 fps=1.0 q=-0.0 size=N/A time=00:00:01.00 bitrate=N/A speed=0.124x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 5 packets
[h264 @ 0x1dfb650] error while decoding MB 33 42, bytestream -5
[h264 @ 0x1dfb650] concealing 3136 DC, 3136 AC, 3136 MV errors in P frame
frame= 8 fps=0.9 q=-0.0 size=N/A time=00:00:01.00 bitrate=N/A speed=0.117x frame= 41 fps=0.9 q=-0.0 size=N/A time=00:00:07.40 bitrate=N/A speed=0.156x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 6 packets
[h264 @ 0x1dfb650] error while decoding MB 72 17, bytestream -5
[h264 @ 0x1dfb650] concealing 6097 DC, 6097 AC, 6097 MV errors in P frame
frame= 42 fps=0.9 q=-0.0 size=N/A time=00:00:07.60 bitrate=N/A speed=0.155x frame= 44 fps=0.9 q=-0.0 size=N/A time=00:00:08.00 bitrate=N/A speed=0.162x [rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 19325 packets
[rtsp @ 0x1d9b630] RTP: PT=60: bad cseq 5c13 expected=1096
[rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 19326 packets
[h264 @ 0x1dfb650] cabac decode of qscale diff failed at 5 15
[h264 @ 0x1dfb650] error while decoding MB 5 15, bytestream 14471
[h264 @ 0x1dfb650] concealing 6404 DC, 6404 AC, 6404 MV errors in P frame
[rtsp @ 0x1d9b630] max delay reached. need to consume packet
[rtsp @ 0x1d9b630] RTP: missed 32 packets
[h264 @ 0x1dfb650] error while decoding MB 40 13, bytestream -11
[h264 @ 0x1dfb650] concealing 6609 DC, 6609 AC, 6609 MV errors in P frame
frame= 44 fps=0.9 q=-0.0 size=N/A time=00:00:08.00 bitrate=N/A speed=0.159xHere’s the output of ffmpeg -decoders | grep -i h264 :
ffmpeg -decoders | grep -i h264
ffmpeg version 3.2.10-1~deb9u1+rpt1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1+rpt1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libxvid --enable-libzmq --enable-libzvbi --enable-omx-rpi --enable-mmal --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
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
VFS..D h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
V..... h264_mmal h264 (mmal) (codec h264)
V....D h264_vdpau H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration) (codec h264) -
Malloc Check Failed when opening video stream
23 août 2013, par donturnerI'm writing a BlackBerry 10 application which decodes an H264 video stream (from a Parrot AR Drone) using ffmpeg and libx264. These libraries have both been compiled for BlackBerry QNX.
Here's my code :
av_register_all();
avcodec_register_all();
avformat_network_init();
printf("AV setup complete\n");
const char* drone_addr = "http://192.168.1.1:5555";
AVFormatContext* pFormatCtx = NULL;
AVInputFormat* pInputFormat = av_find_input_format("H264");
printf("Opening video feed from drone\n");
//THIS LINE FAILS
int result = avformat_open_input(&pFormatCtx, drone_addr, pInputFormat, NULL);The last line fails with the error :
Malloc Check Failed: :../../dlist.c:1168How can I fix this error or debug it further ?
Update : The error only occurs when I supply
pInputFormattoavformat_open_input. If I supply NULL I don't get an error. But for my app I must supply this parameter since it is not possible for ffmpeg to determine the video format from the feed alone. -
Malloc Check Failed when opening video stream
23 août 2013, par donturnerI'm writing a BlackBerry 10 application which decodes an H264 video stream (from a Parrot AR Drone) using ffmpeg and libx264. These libraries have both been compiled for BlackBerry QNX.
Here's my code :
av_register_all();
avcodec_register_all();
avformat_network_init();
printf("AV setup complete\n");
const char* drone_addr = "http://192.168.1.1:5555";
AVFormatContext* pFormatCtx = NULL;
AVInputFormat* pInputFormat = av_find_input_format("H264");
printf("Opening video feed from drone\n");
//THIS LINE FAILS
int result = avformat_open_input(&pFormatCtx, drone_addr, pInputFormat, NULL);The last line fails with the error :
Malloc Check Failed: :../../dlist.c:1168How can I fix this error or debug it further ?
Update : The error only occurs when I supply
pInputFormattoavformat_open_input. If I supply NULL I don't get an error. But for my app I must supply this parameter since it is not possible for ffmpeg to determine the video format from the feed alone.
Syndiquer tout le site
