122 lines
2.8 KiB
ReStructuredText
122 lines
2.8 KiB
ReStructuredText
PHP FFMpeg Recipes
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==================
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Initializing FFMpeg
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-------------------
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In the examples we will show you, we assume we work in an environnment where
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FFMpeg has been initialized to ``$ffmpeg`` var ; there are two ways to
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initialize the environment :
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Loading FFMpeg automatically
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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The easiest way to initialize ``FMpeg`` it is to call the loader ; this will
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look in your PATH environment variable to find ffmpeg/avconv binary :
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.. code-block:: php
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<?php
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use Monolog\Logger;
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use Monolog\Handler\NullHandler;
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use FFMpeg\FFMpeg;
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// Create a logger
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$logger = new Logger('MyLogger');
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$logger->pushHandler(new NullHandler());
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// You have to pass a Monolog logger
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// This logger provides some usefull infos about what's happening
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$ffmpeg = FFMpeg::load($logger);
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.. note:: FFMpeg and FFProbe both requires a logger with gives feedback about
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what's happening. By passing a NullHandler to the logger, you disable the
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logging system.
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Use custom binary
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^^^^^^^^^^^^^^^^^
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You can also initialize with a custom path to the binary :
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.. code-block:: php
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<?php
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$ffmpeg = new FFMpeg('/usr/local/src/ffmpeg/bin/ffmpeg', $logger);
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Defining formats
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----------------
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Encode a video
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^^^^^^^^^^^^^^
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To encode a video, you have to define the target format. A format is an object
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that implements ``FFMpeg\Format\Video``
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The following example initialize a Ogg format and encodes a `Video.mpeg` to a
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target file `file.ogv` :
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.. code-block:: php
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<?php
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use FFMpeg\Format\Video\Ogg;
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$oggFormat = new Ogg();
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$ffmpeg->open('Video.mpeg')
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->encode($oggFormat, 'file.ogv')
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->close();
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.. note: ``FFmpeg`` methods always return the object itself so you can chain
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multiple methods.
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Create HTML5 videos
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^^^^^^^^^^^^^^^^^^^
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PHP-FFMpeg provides three video format out of the box : HTML5 video formats.
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These formats are available as these objects :
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- ``FFMpeg\Format\Video\WebM``
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- ``FFMpeg\Format\Video\X264``
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- ``FFMpeg\Format\Video\Ogg``
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.. code-block:: php
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<?php
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use FFMpeg\Format\Video;
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$webMFormat = new Video\WebM();
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$webMFormat->setDimensions(320, 240)
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->setFrameRate(15)
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->setGopSize(25);
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$x264Format = new Video\X264();
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$x264Format->setDimensions(320, 240)
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->setFrameRate(15)
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->setGopSize(25);
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$oggFormat = new Video\Ogg();
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$oggFormat->setDimensions(320, 240)
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->setFrameRate(15)
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->setGopSize(25);
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$ffmpeg->open('Video.mpeg')
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->encode($webMFormat, 'file.webm')
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->encode($x264Format, 'file.mp4')
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->encode($oggFormat, 'file.ogv')
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->close();
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.. note: Use PHP-MP4Box to make it compatible with pseudo stream !
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Create your own media type
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^^^^^^^^^^^^^^^^^^^^^^^^^^
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FFProbe recipes
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---------------
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create HTML5 videos
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^^^^^^^^^^^^^^^^^^^
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