使用以下教程通过管道从php发送上传的图像到ffmpeg。
然而,它引发了一个错误,说管道中有无效数据。pipe:: Invalid data found when processing input
以下是用于上传图像文件的php代码
$tempPath = $_FILES['vdofile']['tmp_name'];
print_r($tempPath);
$descriptorspec = array(
0 => array("pipe", "r"), // stdin is a pipe that the child will read from
1 => array("pipe", "w"), // stdout is a pipe that the child will write to
2 => array("file", "error-output.txt", "a") // stderr is a file to write to
);
$img = imagecreatefromjpeg($tempPath);
$proc = proc_open("ffmpeg image2pipe -i - -y image.jpg", $descriptorspec, $pipes);
if (is_resource($proc)) {
/*
* $pipes[0] = write something to command being run
* $pipes[1] = read something from command
* $pipes[2] = error from command
*/
fwrite($pipes[0], $_FILES['vdofile']['tmp_name']);
fclose($pipes[0]);
}
proc_close($proc);
?>
和简单的html上传代码如下:
<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="vdofile" />
<input type="submit" value="Upload" />
</form>
生成的错误文件如下:
ffmpeg version N-58485-ga12b4bd Copyright (c) 2000-2013 the FFmpeg developers
built on Nov 26 2013 22:07:02 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 55.100 / 52. 55.100
libavcodec 55. 44.100 / 55. 44.100
libavformat 55. 21.102 / 55. 21.102
libavdevice 55. 5.101 / 55. 5.101
libavfilter 3. 91.100 / 3. 91.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
pipe:: Invalid data found when processing input
任何帮助将不胜感激。
**
**
代码仍会产生错误:
ffmpeg version N-58485-ga12b4bd Copyright (c) 2000-2013 the FFmpeg developers
built on Nov 26 2013 22:07:02 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 55.100 / 52. 55.100
libavcodec 55. 44.100 / 55. 44.100
libavformat 55. 21.102 / 55. 21.102
libavdevice 55. 5.101 / 55. 5.101
libavfilter 3. 91.100 / 3. 91.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
[image2pipe @ 00000000029ee0a0] Could not find codec parameters for stream 0 (Video: none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
pipe:: could not find codec parameters
从上面的php中调用以下ffmpeg命令:
ffmpeg -f image2pipe -i - -vcodec mjpeg -vframes 1 -an -f mjpeg image.mp4
答案 0 :(得分:0)
你有一个拼写错误,你需要告诉ffmpeg管道图像是什么格式:
变化:
ffmpeg image2pipe -i - -y image.jpg
要:
ffmpeg -y -f image2pipe -codec:v mjpeg -i - image.jpg
此示例会将输入管道图像重新编码为image.jpg
。
ffmpeg -y -f image2pipe -codec:v mjpeg -i - -codec copy image.jpg
这只是stream copy(重新多路复用)而不是重新编码。可以将其视为将管道图像复制并粘贴到输出中。
您仍然可以获得pipe:: Input/output error
,但您可以忽略它,因为流复制的图像与我的测试中的输入具有相同的md5哈希值。
我认为没有理由将单个图像传输到ffmpeg以重新编码它,但我发现你的代码只是用于测试管道。