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Autres articles (106)
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Soumettre bugs et patchs
10 avril 2011Un logiciel n’est malheureusement jamais parfait...
Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
Si vous pensez avoir résolu vous même le bug (...) -
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 -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (8255)
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Strange FPS and frame number while re-encoding a video
5 juillet 2017, par mdasariI am re-encoding a video using below command :
ffmpeg -i input.mp4 -q 20 output.avi
The video is 10 mins approx, i.e, it has around 18K frames. However, I am getting last frame number as 5061, but the re-encoded video is playing for all 10 mins. I don’t understand the reason why it is showing such a low frame number. Below is last few lines of output.
frame= 5028 fps=143 q=20.0 size= 24863kB time=00:09:53.20 bitrate= 343.4kbits/s dup=0 drop=2087
Past duration 1.703728 too large
Past duration 0.986687 too large
Past duration 0.704277 too large
Past duration 0.954399 too large
Past duration 1.951469 too large
Past duration 0.879509 too large
Past duration 0.942192 too large
Past duration 0.815910 too large
Past duration 0.785393 too large
Past duration 0.792351 too large
Past duration 0.644402 too large
frame= 5061 fps=143 q=20.0 Lsize= 25493kB time=00:09:56.45 bitrate= 350.1kbits/s dup=0 drop=2098
video:22458kB audio:2320kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.886272%Edit : Here is the log
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tools/target_dec_fuzzer : Limit number off all pixels decoded
31 juillet 2019, par Michael Niedermayertools/target_dec_fuzzer : Limit number off all pixels decoded
This should reduces the number of uninteresting timeouts encountered
A single threshold for all codecs did not work
Fixes : 13979/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QTRLE_fuzzer-5629872380051456 (14sec -> 4sec)
Fixes : 14709/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GDV_fuzzer-5704215281795072 (179sec -> 7sec)
Fixes : 16296/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HNM4_VIDEO_fuzzer-5756304521428992 (108sec -> 9sec)
Fixes : 15620/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GIF_fuzzer-5657214435459072 (26sec -> 26ms)Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
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Obtain the total number of samples with FFMpeg
21 juin 2016, par Henry W.Currently my application reads audio files based on a while-realloc loop :
// Pseudocode
float data* = nullptr;
int size = 0;
AVFrame* frame;
while(readFrame(formatContext, frame))
{
data = realloc(data, size + frame.nSamples);
size += frame.nSamples;
/* Read frame samples into data */
}Is there a way to obtain the total number of samples in a stream at the beginning ? I want to be able to create the array with
new[]
instead ofmalloc
.