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Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...) -
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 (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.
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"wrong sample count" When reading MP4 files using OpenCV
26 octobre 2022, par Object UnknownI want to marge some mp4 videos using OpenCV library, but when I try to read those videos using
cv::VideoCapture, it outputs like that :

[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9AAE9D80] co located POCs unavailable
[h264 @ 000001EB9AAE7D80] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9A128600] co located POCs unavailable
[h264 @ 000001EB9A129840] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB9AA28E40] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9A169B00] co located POCs unavailable
[h264 @ 000001EB9A16B680] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB960CD680] co located POCs unavailable
[h264 @ 000001EB960CC8C0] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9A81DDC0] co located POCs unavailable
[h264 @ 000001EB9A81B000] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB960CB200] co located POCs unavailable
[h264 @ 000001EB960CBFC0] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB99F206C0] co located POCs unavailable
[h264 @ 000001EB99F20B40] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9A81D480] co located POCs unavailable
[h264 @ 000001EB9A81B000] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9AD02C00] co located POCs unavailable
[h264 @ 000001EB9AD02300] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9A81B480] co located POCs unavailable
[h264 @ 000001EB9A81B940] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[h264 @ 000001EB9AD02780] co located POCs unavailable
[h264 @ 000001EB9AD01E40] co located POCs unavailable
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001EB96084B80] wrong sample count


and just exited with exit value 0. I want to know why it is reporting this and how to solve it please.


Heres my demo code :


#include <string>
#include <iostream>
#include <opencv2></opencv2>core/core.hpp>
#include <opencv2></opencv2>video/video.hpp>
#include <opencv2></opencv2>imgproc/imgproc.hpp>
#include <opencv2></opencv2>videoio/videoio.hpp>
#include <opencv2></opencv2>highgui/highgui.hpp>

int main()
{
 cv::Mat frame;
 cv::VideoCapture vcap;
 for (int i = 1; i <= 60; i++)
 {
 if (!vcap.open("G:\\Users\\15819\\Desktop\\Demo\\demo (" + std::to_string(i) + ").mp4"))
 {
 std::cout << "Failed to Open File: demo (" << i << ").mp4" << std::endl;
 continue;
 }
 while (!vcap.read(frame))
 cv::imshow("video", frame);
 }
 return 0;
}
</iostream></string>

I installed the
OpenCVandFFmpeglibrary usingvcpkg, here's the library information (displayed byvcpkg listcommand) :

ffmpeg:x64-windows 4.4.1#21 a library to decode, encode, transcode, mux, dem...
ffmpeg:x86-windows 4.4.1#21 a library to decode, encode, transcode, mux, dem...
ffmpeg[avcodec]:x64-windows Build the avcodec library
ffmpeg[avcodec]:x86-windows Build the avcodec library
ffmpeg[avdevice]:x64-windows Build the avdevice library
ffmpeg[avdevice]:x86-windows Build the avdevice library
ffmpeg[avfilter]:x64-windows Build the avfilter library
ffmpeg[avfilter]:x86-windows Build the avfilter library
ffmpeg[avformat]:x64-windows Build the avformat library
ffmpeg[avformat]:x86-windows Build the avformat library
ffmpeg[openh264]:x64-windows H.264 de/encoding via openh264
ffmpeg[openh264]:x86-windows H.264 de/encoding via openh264
ffmpeg[swresample]:x64-windows Build the swresample library
ffmpeg[swresample]:x86-windows Build the swresample library
ffmpeg[swscale]:x64-windows Build the swscale library
ffmpeg[swscale]:x86-windows Build the swscale library
opencv4:x64-windows 4.6.0#6 computer vision library
opencv4:x86-windows 4.6.0#6 computer vision library
opencv4[default-features]:x64-windows Platform-dependent default features
opencv4[default-features]:x86-windows Platform-dependent default features
opencv4[dnn]:x64-windows Enable dnn module
opencv4[dnn]:x86-windows Enable dnn module
opencv4[ffmpeg]:x64-windows ffmpeg support for opencv
opencv4[ffmpeg]:x86-windows ffmpeg support for opencv
opencv4[jpeg]:x64-windows JPEG support for opencv
opencv4[jpeg]:x86-windows JPEG support for opencv
opencv4[png]:x64-windows PNG support for opencv
opencv4[png]:x86-windows PNG support for opencv
opencv4[qt]:x64-windows Qt GUI support for opencv
opencv4[qt]:x86-windows Qt GUI support for opencv
opencv4[quirc]:x64-windows Enable QR code module
opencv4[quirc]:x86-windows Enable QR code module
opencv4[tiff]:x64-windows TIFF support for opencv
opencv4[tiff]:x86-windows TIFF support for opencv
opencv4[webp]:x64-windows WebP support for opencv
opencv4[webp]:x86-windows WebP support for opencv
opencv:x64-windows 4.6.0 Computer vision library
opencv:x86-windows 4.6.0 Computer vision library
opencv[default-features]:x64-windows Platform-dependent default features
opencv[default-features]:x86-windows Platform-dependent default features
opencv[dnn]:x64-windows Enable dnn module
opencv[dnn]:x86-windows Enable dnn module
opencv[jpeg]:x64-windows JPEG support for opencv
opencv[jpeg]:x86-windows JPEG support for opencv
opencv[png]:x64-windows PNG support for opencv
opencv[png]:x86-windows PNG support for opencv
opencv[quirc]:x64-windows Enable QR code module
opencv[quirc]:x86-windows Enable QR code module
opencv[tiff]:x64-windows TIFF support for opencv
opencv[tiff]:x86-windows TIFF support for opencv
opencv[webp]:x64-windows WebP support for opencv
opencv[webp]:x86-windows WebP support for opencv


Other Environments :


OS: Windows 11 x64 Professional Workstation
IDE: Visual Studio 2022
Project C++ Standard: C++14
Project Platform: x64 Release


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hwframe : Allow hwaccel frame allocators to align surface sizes
22 juin 2017, par Anton Khirnovhwframe : Allow hwaccel frame allocators to align surface sizes
Hardware accelerated decoding generally uses AVHWFramesContext for pool
allocation of hardware surfaces. These are setup to allocate surfaces
aligned to hardware and hwaccel API requirements. Due to the
architecture, av_hwframe_get_buffer() will return AVFrames with
the dimensions set to the aligned sizes.This causes some decoders (like hevc) return these aligned size as
final frame size, instead of cropping them to the video’s actual
dimensions. To make sure this doesn’t happen, crop the frame to the
size the decoder expects when ff_get_buffer() is called.Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
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Anomalie #3024 (Fermé) : spip_loader.php et IE8 (oui.... les pros du C/S traditionnels l’exigent !)
3 mai 2015, par b bIE8 n’est plus supporté depuis le 8 avril 2014, cf http://fr.wikipedia.org/wiki/Internet_Explorer#Internet_Explorer_8 => on ferme.
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