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Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...) -
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 (6272)
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Merge commit ’715f139c9bd407ef7f4d1f564ad683140ec61e6d’
23 mars 2017, par Clément BœschMerge commit ’715f139c9bd407ef7f4d1f564ad683140ec61e6d’
* commit ’715f139c9bd407ef7f4d1f564ad683140ec61e6d’ : (23 commits)
vp9lpf/x86 : make filter_16_h work on 32-bit.
vp9lpf/x86 : make filter_48/84/88_h work on 32-bit.
vp9lpf/x86 : make filter_44_h work on 32-bit.
vp9lpf/x86 : make filter_16_v work on 32-bit.
vp9lpf/x86 : make filter_48/84_v work on 32-bit.
vp9lpf/x86 : make filter_88_v work on 32-bit.
vp9lpf/x86 : make filter_44_v work on 32-bit.
vp9lpf/x86 : save one register in SIGN_ADD/SUB.
vp9lpf/x86 : store unpacked intermediates for filter6/14 on stack.
vp9lpf/x86 : move variable assigned inside macro branch.
vp9lpf/x86 : simplify ABSSUM_CMP by inverting the comparison meaning.
vp9lpf/x86 : remove unused register from ABSSUB_CMP macro.
vp9lpf/x86 : slightly simplify 44/48/84/88 h stores.
vp9lpf/x86 : make cglobal statement more conservative in register allocation.
vp9lpf/x86 : save one register in loopfilter surface coverage.
vp9lpf/x86 : add ff_vp9_loop_filter_[vh]_44_16_sse2,ssse3,avx.
vp9lpf/x86 : add ff_vp9_loop_filter_h_48,84_16_sse2,ssse3,avx().
vp9lpf/x86 : add an SSE2 version of vp9_loop_filter_[vh]_88_16
vp9lpf/x86 : add ff_vp9_loop_filter_[vh]_88_16_ssse3,avx.
vp9lpf/x86 : add ff_vp9_loop_filter_[vh]_16_16_sse2().
...All these commits are cherry-picks from FFmpeg. Maybe some slight
differences sneaked in but the Libav codebase still differs too much
with our own to make a proper diff. This merge is a noop.Merged-by : Clément Bœsch <u@pkh.me>
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setting bit rates in creating video from images in ffmpeg not working
2 mai 2014, par mast kalandarI have a HQ video of one second
Some information of this video is as below
Dimensions : 1920 x 1080
Codec : H.264
Framerate : 30 frames per second
Size : 684.7 kB (6,84,673 bytes)
Bitrates : 5458 kbpsI have extracted frames from video
ffmpeg -i f1.mp4 f%d.jpgAll images are of 1920 x 1020 pixels by default 30 frames are generated (f7_1.jpg, f7_2.jpg,.....,f7_30.jpg)
I have added some texts and objects to these images (without changing dimensions of any image, all 30 images are still of 1920 x 1020 pixels)
Now I am trying to merge all these images to create single video (of 1 second)
I referred this official document, I have run below command
ffmpeg -f image2 -i f7_%d.jpg -r 30 -b:v 5458k foo_5458_2.mp4Video created is also of one second, thing is its bit rates are higher then the original one. New video has 6091 kbps bit rates, while I expect are 5458 kbps only.
Because of higher bits, its gets finish very quickly compare to original video in video player.
Is there any thing I missing ??
And I don’t know what is exact meaning and job of
-f image2option, when I run command without this option, I am getting same video. -
Convert encoded audio file to text with signal values
15 août 2017, par Niccolò CironeI’ve been programming in c for the first time with audio files. I found this code which supposedly should read an audio file and then write a csv file containing several info in order to analyse the audio waves,that in case will be a simple voice : i’m interested in amplitude of the waves, in the timbre of the voice and its hight and extension.
main () {
// Create a 20 ms audio buffer (assuming Fs = 44.1 kHz)
int16_t buf[N] = {0}; // buffer
int n; // buffer index
// Open WAV file with FFmpeg and read raw samples via the pipe.
FILE *pipein;
pipein = popen("ffmpeg -i whistle.wav -f s16le -ac 1 -", "r");
fread(buf, 2, N, pipein);
pclose(pipein);
// Print the sample values in the buffer to a CSV file
FILE *csvfile;
csvfile = fopen("samples.csv", "w");
for (n=0 ; n<n></n>code>Could someone explain me in detail how can I read an audio file so that I could extract from it the info I need ? Referring to this code, could someone explain me the meaning of the pipe at line 8
pipein = popen("ffmpeg -i whistle.wav -f s16le -ac 1 -", "r");p.s. I already know how to read the header of the audio file, which contains a lot of useful info, but I also want to analyse the entire audio file, sample by sample.
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