avcodec is a free software/open source LGPL-licensed library of codecs for encoding and decoding video and audio data.
Questions tagged [avcodec]
54 questions
0
votes
1 answer
gstreamer pipeline program using OpenCV 2.4.8 throws run-time error
On Windows x64, I have a gstream pipeline program using OpenCV 2.4.8 throws run-time error about the procedure entry point findHomography not located in library avcodec-55.dll.
Here is the exact message on the dialog box:
"The procedure entry point…
arm
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2 answers
avformat.h and avcode.h NOT FOUND
I am using MAC OSx and OpenCv 2.4.8. I am trying to compile a program which includes:
avformat.h and avcodec.h
I have looked for those files in my computer and they exist (in OpenCv folder).
When I compile like this:
g++ track.cpp -o track -I…
user3369375
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0 answers
encoding from rgb24 to mpeg4 and decoding from mpeg4 to rgb24 with libavcodec
Problem:
I am receiving rgb24 images from a webcam and am encoding them to mpeg4 using libavcodec. I am not able to decode them back to rgb24. avcodec_decode_video2 returns that it processed all of the input but the third parameter to…
user3017830
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0
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1 answer
What is a damaged MPEG stream?
I am reading through the avcodec documentation and I am trying to understand what it means for an MPEG stream to be damaged. It mentions:
The end of the input buffer buf should be set to 0 to ensure that no overreading happens for damaged MPEG…
CoderDake
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0
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2 answers
Unable to link FFMpeg libraries in Visual studio 2012
I have been trying to link the FFMPEG static libraries to Visual studio 2012 in c++ environment. But i get the following error.
Error 1 error LNK1104: cannot open file
'avcodec.lib' C:\Users\username\Documents\Visual…
Pferd
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0
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1 answer
avcodec_decode_video2 always sets got_picture_ptr to 0 while using with live555
I am trying to decode frames using libavcodec. My applications retrieves rtp packets from on rtsp stream using live555. I have searched quite a lot for reasons of avcodec_decode_video setting got_picture_ptr to 0 but haven't been able to find it.
…
Richard Macwan
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How concatenate a array of videos using avconv
I want to concatenate a array of videos my array is
$interFIFO // array(
0=>test1.mpg,
1=>test2.mpg,
2=>test3.mpg,
3=>test4.mpg,
);// array count may be increase some time
I…
Elby
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0
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2 answers
Run CLI commands using PHP script
I want to convert a flv file to mpg using avconv it is run successively using terminal. My problem is run command using php script. I write a code but i did not got result. My code as follows
Elby
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-2
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1 answer
how to convert a Image to video using avconv
i want to create a video from a image i used following code
shell_exec("avconv -f image2 -r 50 testimage.jpg output.mpg");
But when i trying to playing output video it shows stream contains no data
Elby
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