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Autres articles (57)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (7448)
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ffmpeg image to video sequence stops after 10
18 mai 2012, par JimProbably a fast anwser, but my first time trying to do this. I have 77 jpeg pictures, I have renamed them to be 000.jpg - 076.jpg. The next step is using ffmpeg and here is my command statement :
ffmpeg -f image2 -r .1 -i %d.jpg -r 25 test.aviIt creates an avi with 10 images for 10seconds each, why only 10 ? I've tried other iterations of %d.jpg in the ffmpeg command with no success.
thanks for the help all !
-Jim
Here is the listing of the directory with the images :
ls -l
total 77472
-rwxr-xr-x 1 jim jim 2329065 May 17 16:31 000.jpg
-rwxr-xr-x 1 jim jim 716563 May 17 16:31 001.jpg
-rwxr-xr-x 1 jim jim 716626 May 17 16:31 002.jpg
-rwxr-xr-x 1 jim jim 726686 May 17 16:31 003.jpg
-rwxr-xr-x 1 jim jim 739312 May 17 16:31 004.jpg
-rwxr-xr-x 1 jim jim 720249 May 17 16:31 005.jpg
-rwxr-xr-x 1 jim jim 666757 May 17 16:31 006.jpg
-rwxr-xr-x 1 jim jim 656259 May 17 16:31 007.jpg
-rwxr-xr-x 1 jim jim 664960 May 17 16:31 008.jpg
-rwxr-xr-x 1 jim jim 740801 May 17 16:31 009.jpg
-rwxr-xr-x 1 jim jim 882502 May 17 16:31 010.jpg
-rwxr-xr-x 1 jim jim 631117 May 17 16:31 011.jpg
-rwxr-xr-x 1 jim jim 730331 May 17 16:31 018.jpg
-rwxr-xr-x 1 jim jim 725132 May 17 16:31 019.jpg
-rwxr-xr-x 1 jim jim 729626 May 17 16:31 020.jpg
-rwxr-xr-x 1 jim jim 731980 May 17 16:31 021.jpg
-rwxr-xr-x 1 jim jim 671597 May 17 16:31 022.jpg
-rwxr-xr-x 1 jim jim 681978 May 17 16:31 023.jpg
-rwxr-xr-x 1 jim jim 686600 May 17 16:31 024.jpg
-rwxr-xr-x 1 jim jim 675316 May 17 16:31 025.jpg
-rwxr-xr-x 1 jim jim 681826 May 17 16:31 026.jpg
-rwxr-xr-x 1 jim jim 740998 May 17 16:31 027.jpg
-rwxr-xr-x 1 jim jim 568480 May 17 16:31 028.jpg
-rwxr-xr-x 1 jim jim 747400 May 17 16:31 029.jpg
-rwxr-xr-x 1 jim jim 630995 May 17 16:31 030.jpg
-rwxr-xr-x 1 jim jim 689926 May 17 16:31 031.jpg
-rwxr-xr-x 1 jim jim 685054 May 17 16:31 032.jpg
-rwxr-xr-x 1 jim jim 710620 May 17 16:31 033.jpg
-rwxr-xr-x 1 jim jim 658365 May 17 16:31 034.jpg
-rwxr-xr-x 1 jim jim 657037 May 17 16:31 035.jpg
-rwxr-xr-x 1 jim jim 772135 May 17 16:31 036.jpg
-rwxr-xr-x 1 jim jim 741759 May 17 16:31 037.jpg
-rwxr-xr-x 1 jim jim 807470 May 17 16:31 038.jpg
-rwxr-xr-x 1 jim jim 748423 May 17 16:31 039.jpg
-rwxr-xr-x 1 jim jim 712377 May 17 16:31 040.jpg
-rwxr-xr-x 1 jim jim 715804 May 17 16:31 041.jpg
-rwxr-xr-x 1 jim jim 701025 May 17 16:31 042.jpg
-rwxr-xr-x 1 jim jim 759446 May 17 16:31 043.jpg
-rwxr-xr-x 1 jim jim 621801 May 17 16:31 044.jpg
-rwxr-xr-x 1 jim jim 720843 May 17 16:31 045.jpg
-rwxr-xr-x 1 jim jim 704002 May 17 16:31 046.jpg
-rwxr-xr-x 1 jim jim 696075 May 17 16:31 047.jpg
-rwxr-xr-x 1 jim jim 723685 May 17 16:31 048.jpg
-rwxr-xr-x 1 jim jim 732332 May 17 16:31 049.jpg
-rwxr-xr-x 1 jim jim 747235 May 17 16:31 050.jpg
-rwxr-xr-x 1 jim jim 883655 May 17 16:31 051.jpg
-rwxr-xr-x 1 jim jim 1750723 May 17 16:31 052.jpg
-rwxr-xr-x 1 jim jim 1002588 May 17 16:31 053.jpg
-rwxr-xr-x 1 jim jim 540666 May 17 16:31 054.jpg
-rwxr-xr-x 1 jim jim 1876002 May 17 16:31 055.jpg
-rwxr-xr-x 1 jim jim 1893761 May 17 16:31 056.jpg
-rwxr-xr-x 1 jim jim 1979442 May 17 16:31 057.jpg
-rwxr-xr-x 1 jim jim 1766249 May 17 16:31 058.jpg
-rwxr-xr-x 1 jim jim 2085989 May 17 16:31 059.jpg
-rwxr-xr-x 1 jim jim 883871 May 17 16:31 060.jpg
-rwxr-xr-x 1 jim jim 755714 May 17 16:31 061.jpg
-rwxr-xr-x 1 jim jim 797146 May 17 16:31 062.jpg
-rwxr-xr-x 1 jim jim 2431531 May 17 16:31 065.jpg
-rwxr-xr-x 1 jim jim 2413333 May 17 16:31 066.jpg
-rwxr-xr-x 1 jim jim 2449278 May 17 16:31 067.jpg
-rwxr-xr-x 1 jim jim 2458183 May 17 16:31 068.jpg
-rwxr-xr-x 1 jim jim 2514419 May 17 16:31 069.jpg
-rwxr-xr-x 1 jim jim 2477737 May 17 16:31 070.jpg
-rwxr-xr-x 1 jim jim 2471347 May 17 16:31 071.jpg
-rwxr-xr-x 1 jim jim 2384936 May 17 16:31 072.jpg
-rwxr-xr-x 1 jim jim 2459983 May 17 16:31 073.jpg
-rwxr-xr-x 1 jim jim 2501286 May 17 16:31 074.jpg
-rwxr-xr-x 1 jim jim 2367710 May 17 16:31 075.jpg
-rwxr-xr-x 1 jim jim 2455564 May 17 16:31 076.jpgFFMPEG Command and OUTPUT :
ffmpeg -v verbose -f image2 -r .1 -i %03d.jpg -r 25 test.avi
ffmpeg version 0.8.1-4:0.8.1-0ubuntu1, Copyright (c) 2000-2011 the Libav developers
built on Mar 22 2012 05:09:06 with gcc 4.6.3
configuration: --extra-version='4:0.8.1-0ubuntu1' --arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libfreetype --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avutil configuration: --extra-version='4:0.8.1ubuntu1+medibuntu1' --arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libfreetype --enable-vaapi --enable-libopenjpeg --enable-libfaac --enable-nonfree --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libopencore-amrnb --enable-version3 --enable-libopencore-amrwb --enable-version3 --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avcodec configuration: --extra-version='4:0.8.1ubuntu1+medibuntu1' --arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libfreetype --enable-vaapi --enable-libopenjpeg --enable-libfaac --enable-nonfree --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libopencore-amrnb --enable-version3 --enable-libopencore-amrwb --enable-version3 --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
libavutil 51. 22. 1 / 51. 22. 1
libavcodec 53. 35. 0 / 53. 35. 0
libavformat 53. 21. 0 / 53. 21. 0
libavdevice 53. 2. 0 / 53. 2. 0
libavfilter 2. 15. 0 / 2. 15. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 52. 0. 0 / 52. 0. 0
This program is not developed anymore and is only provided for compatibility. Use avconv instead (see Changelog for the list of incompatible changes).
[image2 @ 0x1bef9c0] max_analyze_duration reached
Seems stream 0 codec frame rate differs from container frame rate: 0.10 (1/10) -> 0.50 (1/2)
Input #0, image2, from '%03d.jpg':
Duration: 00:02:00.00, start: 0.000000, bitrate: N/A
Stream #0.0: Video: mjpeg, yuvj440p, 1920x2560, 0.10 fps, 0.50 tbr, 0.10 tbn, 0.10 tbc
File 'test.avi' already exists. Overwrite ? [y/N] y
Incompatible pixel format 'yuvj440p' for codec 'mpeg4', auto-selecting format 'yuv420p'
[buffer @ 0x1bf0100] w:1920 h:2560 pixfmt:yuvj440p
[avsink @ 0x1bf13c0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x1bf1ae0] w:1920 h:2560 fmt:yuvj440p -> w:1920 h:2560 fmt:yuv420p flags:0x4
Output #0, avi, to 'test.avi':
Metadata:
ISFT : Lavf53.21.0
Stream #0.0: Video: mpeg4, yuv420p, 1920x2560, q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream mapping:
Stream #0.0 -> #0.0
Press ctrl-c to stop encoding
[buffer @ 0x1bf0100] Changing frame properties on the fly is not supported.
Last message repeated 10 times
frame= 1 fps= 0 q=5.7 Lsize= 97kB time=0.04 bitrate=19823.2kbits/s
video:91kB audio:0kB global headers:0kB muxing overhead 6.106282%Now test.avi is only 99Kbs and doesn't play anything.
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Anomalie #2668 : MediaBox
6 mai 2012, par marcimat -Ah oui, si j’en crois http://www.jacklmoore.com/colorbox il faut que la description ’current’ (transmis par ’boxstr_current’ en question) contienne les chaines current et total qui seront remplacé par colorbox par leurs valeurs. Du coup, les traduire n’a pas de sens et crée un (...)
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FFmpeg : undefined references to av_frame_alloc()
6 août 2014, par dontrythisathomeI want to get into FFmpeg developing and i started following these samples tutorial here : here
I started with the first tutorial - tutorial01.c - but i run into this problem ’undefined references to av_frame_alloc()’.
I’m on Ubuntu 12.04 LTS.
This is my program :
/*
* File: main.c
* Author: dontrythisathome
*
* Created on 3 giugno 2014, 23.02
*/
#include
#include <libavcodec></libavcodec>avcodec.h>
#include <libavformat></libavformat>avformat.h>
#include <libavutil></libavutil>frame.h>
#include <libswscale></libswscale>swscale.h>
/*
*
*/
void SaveFrame(AVFrame *pFrame, int width, int height, int iFrame)
{
FILE *pFile;
char szFilename[32];
int y;
//Apre il file
sprintf(szFilename, "frame%d.ppm", iFrame);
pFile=fopen(szFilename, "wb");
if(pFile==NULL)
{return; }
//Scrive l'intestazione del file ( Larghezza x Altezza su video)
fprintf(pFile, "P6\n%d %d\n255\n", width, height);
//Scrive i data pixel
for(y=0; ydata[0]+y*pFrame->linesize[0], 1, width*3, pFile);
}
//Chiude il file
fclose(pFile);
}
/*
*
*/
/*Main Function*/
int main(int argc, char *argv[])
{
AVFormatContext *pFormatCtx;
int i, videoStreamIdx;
AVCodecContext *pCodecCtx;
AVCodec *pCodec;
AVFrame *pFrame;
AVFrame *pFrameRGB;
AVPacket packet;
int frameFinished;
int numBytes;
uint8_t *buffer;
static struct SwsContext *img_convert_ctx;
if(argc < 2){
printf("Inserisci un file video\n");
return -1;
}
//Registra tutti i formati e i codec
av_register_all();
//Apre il file video
if(avformat_open_input(&pFormatCtx, argv[1], NULL, NULL) != 0)
{return -1;} //Impossibile aprire il file
//Recupera le informazioni dello stream
if(avformat_find_stream_info(pFormatCtx, NULL) < 0)
{return -1;} // Couldn't find stream information
//Versa le informazioni del file sullo standard error
av_dump_format(pFormatCtx, 0, argv[1], 0);
//Trova il primo stream video
videoStreamIdx=-1;
for(i=0; inb_streams; i++)
{
if(pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
{ videoStreamIdx=i;
break;}
}
if(videoStreamIdx==-1)
return -1; // Impossibile trovare lo stream video
// Punta al contenuto del codec per lo stream video
pCodecCtx = pFormatCtx->streams[videoStreamIdx]->codec;
// Trova il decoder per lo stream video
pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
if(pCodec==NULL)
{
fprintf(stderr, "Codec Non Supportato!\n");
return -1; //Impossibile trovare il codec
}
//Apre il codec
if(avcodec_open2(pCodecCtx, pCodec, NULL) < 0)
{return -1;} //Impossibile aprire il codec
//Alloca il frame video
pFrame = av_frame_alloc();
//Alloca una struct AVFrame
pFrameRGB = av_frame_alloc();
if(pFrameRGB==NULL)
{return -1;}
//Determina la grandezza necessaria per il buffer e lo alloca
numBytes = avpicture_get_size(PIX_FMT_RGB24,
pCodecCtx->width,
pCodecCtx->height);
buffer = (uint8_t *) av_malloc(numBytes*sizeof(uint8_t));
//Assegna le parti appropriate del buffer sulla superficie dell'immagine in pFrameRGB
//Tenere presente che pFrameRGB è un AVFrame, ma AVFrame è una superset di AVPicture
avpicture_fill((AVPicture *)pFrameRGB, buffer, PIX_FMT_RGB24, pCodecCtx->width, pCodecCtx->height);
int w = pCodecCtx->width;
int h = pCodecCtx->height;
img_convert_ctx = sws_getContext(w, h, pCodecCtx->pix_fmt,
w, h, PIX_FMT_RGB24,
SWS_LANCZOS, NULL, NULL, NULL);
//Legge i frame e salva i primi 5 frame su disco
i=0;
while((av_read_frame(pFormatCtx, &packet)>=0) && (i<5))
{
//Questo è il packet dello stream video?
if(packet.stream_index==videoStreamIdx)
{
//Decodifica il frame video
avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet);
//Si è riusiciti ad ottenere il frame video?
if(frameFinished)
{
i++;
sws_scale(img_convert_ctx, (const uint8_t * const *)pFrame->data,
pFrame->linesize, 0, pCodecCtx->height,
pFrameRGB->data, pFrameRGB->linesize);
SaveFrame(pFrameRGB, pCodecCtx->width, pCodecCtx->height, i);
}
}
//Libera il pacchetto che era allocato da av_read_frame
av_free_packet(&packet);
}
//Libera l'immagine RGB
av_free(buffer);
av_free(pFrameRGB);
//Libera il frame YUV
av_free(pFrame);
//Chiude il codec
avcodec_close(pCodecCtx);
//Chiude il file video
avformat_close_input(&pFormatCtx);
/*FINE PROGRAMMA*/
return 0;
}This is the build output :
"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
make[1]: ingresso nella directory "/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid"
"/usr/bin/make" -f nbproject/Makefile-Debug.mk dist/Debug/GNU-Linux-x86/simplemediaplayerforandroid
make[2]: ingresso nella directory "/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid"
mkdir -p dist/Debug/GNU-Linux-x86
gcc -o dist/Debug/GNU-Linux-x86/simplemediaplayerforandroid build/Debug/GNU-Linux-x86/main.o -L/usr/lib/x86_64-linux-gnu -lavformat -lavcodec -lavutil -lswscale -lz -lbz2
build/Debug/GNU-Linux-x86/main.o: In function `main':
/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid/main.c:105: undefined reference to `av_frame_alloc'
/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid/main.c:108: undefined reference to `av_frame_alloc'
collect2: ld returned 1 exit status
make[2]: *** [dist/Debug/GNU-Linux-x86/simplemediaplayerforandroid] Errore 1
make[2]: uscita dalla directory "/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid"
make[1]: *** [.build-conf] Errore 2
make[1]: uscita dalla directory "/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid"
make: *** [.build-impl] Errore 2
BUILD FAILED (exit value 2, total time: 143ms)I also linked the correct library path and headers path because there is no error with that.
But when i try to build the program from the terminal with these commands :
gcc -o prog1 /home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid/main.c -lavformat -lavcodec -lavutil -lswscale -lz -lbz2And the output is different :
/home/dontrythisathome/Programmazione/C-C++/SimpleMediaPlayerForAndroid/main.c:11:29: fatal error: libavutil/frame.h: File o directory non esistente
compilation terminated.The output says that there is no file or directory existing.
What is the problem ?
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