VideoStream

A non-owning view of a video stream within a Media. It wraps an AVStream + its codec parameters, owns no native memory, and holds a refcount on its parent Media so the file stays open while the view is alive.

Obtain one from Media::videoStream() or Media::streams(). Pass it to MediaEncoder::addVideo() to map it into an output.

Properties

All readonly.

Property	Type	Description
$index	int	Stream index within the container.
$codec	string	Codec short name, e.g. "h264".
$duration	float	Stream duration in seconds (0.0 if unknown).
$bitrate	int	Stream bit rate in bits/sec.
$width	int	Frame width in pixels.
$height	int	Frame height in pixels.
$pixelFormat	string	Pixel format name, e.g. "yuv420p".
$frameRate	float	Average frame rate in frames/sec.

Example

$v = FFmpeg\Media::open('clip.mp4')->videoStream();
printf("%dx%d %s @ %.3g fps (%s)\n",
    $v->width, $v->height, $v->codec, $v->frameRate, $v->pixelFormat);

See also

Media · AudioStream · MediaEncoder