chung-leong / av Goto Github PK

PHP complains of memory corruption.

The subtitle transfer test case is failing

Hello, I've written a class which watermarks video, everything works well except the fact that a segmentation fault occurs in av_stream_write_pcm when processing certain videos. av_stream_write_pcm processes only several samples in such videos and then the program crashes with segmentation fault.

It looks like a memory corruption, my code is OOP and I tried to reproduce the error on a plain php code without success.

I will post my class if you will be unable to track the issue from this brief description.

The following code causes a "Illegal operation: not an array" error:

<?php

/**
 * A test function
 * 
 * @engine  qb
 * @local   float32[2][4]   $a
 * @local   int32[x,y]  $c
 * 
 * @return  void
 * 
 */
function test_function() {
    $a[$c->x][$c->y] = 5;
    echo "$a\n";
}

qb_compile();

test_function();

?>

Release = Agnieszka A.

I tried to compile the extension for Windows x64 (PHP 5.5). This was possible by adding a lib64 directory besides the lib directory and add Zeranoe's 64-bit libs over there. I used these libs:
http://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-20130424-git-aa96439-win64-dev.7z

Then I had to tweak the config.w32 a little bit:

PHP_CL = PATH_PROG('cl', null, 'PHP_CL');
if (!PHP_CL) {
    ERROR("MS C++ compiler is required");
}
X64 = probe_binary(PHP_CL, 64, null, 'PHP_CL');
if (X64) {
    ADD_FLAG("LIBS_AV", "ext\\av\\win32\\ffmpeg\\lib64\\avcodec.lib");
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib64\\avformat.lib');
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib64\\avutil.lib');
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib64\\swscale.lib');
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib64\\swresample.lib');
} else {
    ADD_FLAG("LIBS_AV", "ext\\av\\win32\\ffmpeg\\lib\\avcodec.lib");
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib\\avformat.lib');
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib\\avutil.lib');
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib\\swscale.lib');
    ADD_FLAG("LIBS_AV", 'ext\\av\\win32\\ffmpeg\\lib\\swresample.lib');
}

For one video, a mkv file, the duration of both streams is -9.2233720368548E+15. The overall duration is correctly return as 7056.864.

Doing an av_stream($file, "audio") then exiting leads to divide by zero error

Passing an numeric index to av_stream_open() leads to crash on Windows

A URL that begins with mms:// will fail with a error opening for reading error. Changing the protocol to mmsh allows the live stream to open correctly. This should happen automatically.

When av_stream_write_pcm() is given a time that is smaller than possible for the number of samples already received, the extension crashes.

I am getting an error: "av_stream_open(): unable to find codec" when I try to open a *.wmv file. Is there anything I should do to make it work? OS; Windows x86, PHP 56 nts. I am using the latest 32-bits shared build by Zeranoe. The FFmpeg.exe in that build supports WMV-input.

The following code causes a "Cannot use an array as an index" error to be thrown

<?php
/**
 * @engine  qb
 * @local   float32[4]  $a
 * @return  void
 */
function test_function() {
    isset($a[1]), "\n";
}
?>

Release = Agnieszka A.

A error should be thrown instead

Target formats other than MP4 don't work, I've tryed WebM and OGV and got the
"error encountered writing file header" message.