【发布时间】:2013-12-10 10:04:55
【问题描述】:
使用以下教程通过管道将上传的图像从 php 发送到 ffmpeg。
但是它会引发一个错误,指出管道中包含无效数据。
pipe:: Invalid data found when processing input
以下是上传图片文件的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);
?>
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
我们将不胜感激。
**
编辑
**
代码仍然产生错误:
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
下面的 ffmpeg 命令从上面的 php 中调用:
ffmpeg -f image2pipe -i - -vcodec mjpeg -vframes 1 -an -f mjpeg image.mp4
【问题讨论】:
-
您需要显示您实际的、未编写脚本的 ffmpeg 命令和完整的 ffmpeg 控制台输出。尽管出现错误,输出文件是否可以正常播放?
-
@LordNeckbeard:感谢您的评论,ffmpeg 代码是在 php 中执行的。可能无法直接运行命令(如何将上传的文件作为管道输入传递。输出文件根本不会生成。(输出预期用于单个图像中的测试目的)即正在测试将上传的图像保存为 jpg只是为了测试php-ffmpeg管道通信
-
在尝试使用 ffmpeg 获得帮助时,ffmpeg 控制台输出始终是重要信息。
-
传输到 ffmpeg 的图像是什么格式的?
-
图片格式为jpg/jpeg