Module rsmpeg::avutil

Everything related to libavutil.

Structs

AVAudioFifo
AVDictionary
AVDictionaryEntry
AVDictionaryEntryMut
AVDictionaryEntryRef
AVDictionaryMut
AVDictionaryRef
AVFrame
AVFrameSideData
AVFrameSideDataRef
AVFrameWithImageBuffer	It’s a AVFrame binded with AVImage, the AVFrame copies the buffer pointer from the AVImage.
AVImage	AVImage is a image buffer holder. It’s a self referential structure.
AVMmap	A read-only file buffer, the file is mmaped when available.
AVRational	Rational number (pair of numerator and denominator).
AVSamples

Functions

av_add_q	Add two rationals. Returns b+c.
av_cmp_q	Compare two rationals.
av_d2q	Convert a double precision floating point number to a rational. In case of infinity, the returned value is expressed as {1, 0} or {-1, 0} depending on the sign.
av_div_q	Divide one rational by another. Returns b/c.
av_gcd_q	Return the best rational so that a and b are multiple of it. If the resulting denominator is larger than max_den, return def.
av_get_channel_layout_nb_channels
av_get_default_channel_layout
av_image_fill_arrays⚠	Setup the data pointers and linesizes based on the specified image parameters and the provided array.
av_inv_q	Invert a rational. @param q value @return 1 / q
av_make_q	Create an AVRational.
av_mul_q	Multiply two rationals. Returns b*c.
av_nearer_q	Find which of the two rationals is closer to another rational.
av_q2d	Convert an AVRational to a double. @param a AVRational to convert @return a in floating-point form @see av_d2q()
av_q2intfloat	Convert an AVRational to a IEEE 32-bit float expressed in fixed-point format.
av_sub_q	Subtract one rational from another. Returns b-c.
get_bytes_per_sample	Return number of bytes per sample, return None when sample format is unknown.
get_packed_sample_fmt	Get the packed alternative form of the given sample format, return None on error.
get_planar_sample_fmt	Get the planar alternative form of the given sample format. return None on error.
get_sample_fmt	Return a sample format corresponding to name, or None on error.
get_sample_fmt_name	Return the name of given sample_fmt, or None if sample_fmt is not recognized.
is_planar	Check if the sample format is planar.

Type Definitions

AVMotionVector
AVPixelFormat	Pixel format.
AVSampleFormat