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Exemple de boutons d’action pour une collection collaborative
27 février 2013, par
Mis à jour : Mars 2013
Langue : français
Type : Image
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Exemple de boutons d’action pour une collection personnelle
27 février 2013, par
Mis à jour : Février 2013
Langue : English
Type : Image
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Collections - Formulaire de création rapide
19 février 2013, par
Mis à jour : Février 2013
Langue : français
Type : Image
Autres articles (14)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)
Sur d’autres sites (3534)
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FFmpeg file not found exception
26 mai 2018, par Sagar HudgeI am getting following exception on video trimming.
video path :
/storage/emulated/0/Pictures/Instagram/Fast & Furious 7 - Get Low Extended Version Video.mp4file name :
Fast & Furious 7 - Get Low Extended Version Video.mp4and ffmpeg searching for only
Fastin/storage/emulated/0/Pictures/Instagram/Fast: No such file or directoryI have found the issue ,it is causing due to the file name having spaces in between them you can check in above mentioned path and in exception.
after changing file name its working but changing name of every file from device its not the right way so how can I solve this exception
FAILED with output : WARNING: linker: /data/user/0/com.example.SeekBarActivity/files/ffmpeg
has text relocations. This is wasting memory and prevents security hardening.
Please fix. ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Oct 7 2014 15:08:46 with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-
android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --
cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-
Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264
--enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig
--enable-pthreads --disable-debug --disable-ffserver --enable-version3 --
enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --
enable-yasm --disable-doc --disable-shared --enable-static --pkg-
config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --
prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-
cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -
U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-
all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-
android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-
lpng -lexpat -lm' --extra-cxxflags=
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
/storage/emulated/0/Pictures/Instagram/Fast: No such file or directory -
How do I set the framerate/FPS in an FFmpeg code (C) ?
2 juin 2020, par Tobias v. BrevernI try to encode single pictures to a .avi video. The goal is to have every picture displayed for a set amount of seconds to create a slide show. I tried my script with 10 pictures and a delay of 1/5 of a second but the output file was not even half a second long (but displayed every picture). For setting the framerate I use the time_base option of the AVCodeContext :



ctx->time_base = (AVRational) {1, 5};


When I use the command
ffmpeg -framerate 1/3 -i img%03d.png -codec png output.avieverything works fine and I get the file I want. I use the png codec because it was the only one i tried that is playable with Windows Media Player.


Am I missing anything here ? Is there another option that has impact on the framerate ?



This is my code so far :



Note : I use a couple of self made data structures and methodes from other classes. They are the ones written in Caps Lock. They basicly do what the name suggests but are necessary for my project. The Input Array contains the pictures that i want to encode.



include <libavutil></libavutil>opt.h>
include <libavutil></libavutil>imgutils.h>
include <libavutil></libavutil>error.h>

void PixmapsToAVI (ARRAY* arr, String outfile, double secs)
{
 if (arr!=nil && outfile!="" && secs!=0) {
 AVCodec* codec = avcodec_find_encoder(AV_CODEC_ID_PNG);
 if (codec) {
 int width = -1;
 int height = -1;
 int ret = 0;

 AVCodecContext* ctx = NULL;
 ctx = avcodec_alloc_context3(codec);
 AVFrame* frame = av_frame_alloc();
 AVPacket* pkt = av_packet_alloc();

 FILE* file = fopen(outfile, "wb");

 ARRAYELEMENT* e;
 int count = 0;
 forall (e, *arr) {
 BITMAP bitmap (e->value, false);
 if (width < 0) {
 width = bitmap.Width();
 height = bitmap.Height();

 ctx->width = width;
 ctx->height = height;
 ctx->time_base = (AVRational){1, 5};
 ctx->framerate = (AVRational){5, 1};
 ctx->pix_fmt = AV_PIX_FMT_RGB24;
 ret = avcodec_open2(ctx, codec, NULL);

 frame->width = width;
 frame->height = height;
 frame->format = ctx->pix_fmt;
 av_opt_set(ctx->priv_data, "preset", "slow", 1);

 }
 ret = av_frame_get_buffer(frame, 1);
 frame->linesize[0] = width*3;

 bitmap.Convert32();
 byte* pixels = bitmap.PixelsRGB(); 

//The two methodes above convert the Pixmap into the RGB structure we need
//They are not needed to get an output file but are needed to get one that makes sense

 fflush(stdout);
 int writeable = av_frame_make_writable(frame);
 if (writeable>=0) {
 for(int i=0; i<(height*width*3); i++){
 frame->data[0][i] = pixels[i];
 }
 }
 ret = avcodec_send_frame(ctx, frame);
 for(int i=0; i= 0) {
 ret = avcodec_receive_packet(ctx, pkt);
 }
 count++;
 avcodec_receive_packet(ctx, pkt);
 fwrite(pkt->data, 1, pkt->size, file);
 fflush(stdout);
 av_packet_unref(pkt);
 }
 fclose(file);
 avcodec_free_context(&ctx);
 av_frame_free(&frame);
 av_packet_free(&pkt);

 }
 }
} 








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cbs_h265 : Detect more reference combinations which would overflow the DPB
3 février 2021, par Mark Thompsoncbs_h265 : Detect more reference combinations which would overflow the DPB
In total, the number of short term references (from the selected short
term ref pic set), the number of long term references (combining both the
used candidates from the SPS and those defined in the slice header) and
the number of instances of the current picture (usually one, but can be
two if current picture reference is enabled) must never exceed the size
of the DPB. This is a generalisation of the condition associated with
num_long_term_pics in 7.4.7.1.We use this to apply tighter bounds to the number of long term pictures
referred to in the slice header, and also to detect the invalid case where
the second reference to the current picture would not fit in the DPB (this
case can't be detected earlier because an STRPS with 15 pictures can still
be valid in the same stream when used with a different PPS which does not
require two DPB slots for the current picture).Fixes : 24913/clusterfuzz-testcase-minimized-ffmpeg_BSF_HEVC_METADATA_fuzzer-6261760693370880
Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Tested-by : Michael Niedermayer <michael@niedermayer.cc>
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