FFmpeg: AVBufferSrcParameters Struct Reference

FFmpeg

AVBufferSrcParameters Struct Reference

Buffer source API

This structure contains the parameters describing the frames that will be passed to this filter. More...

#include <buffersrc.h>

Data Fields

video: the pixel format, value corresponds to enum AVPixelFormat audio: the sample format, value corresponds to enum AVSampleFormat More...

AVRational time_base

The timebase to be used for the timestamps on the input frames. More...

Video only, the display dimensions of the input frames. More...

AVRational sample_aspect_ratio

Video only, the sample (pixel) aspect ratio. More...

AVRational frame_rate

Video only, the frame rate of the input video. More...

AVBufferRef * hw_frames_ctx

Video with a hwaccel pixel format only. More...

int sample_rate

Audio only, the audio sampling rate in samples per secon. More...

uint64_t channel_layout

Audio only, the audio channel layout. More...

Detailed Description

This structure contains the parameters describing the frames that will be passed to this filter.

It should be allocated with av_buffersrc_parameters_alloc() and freed with av_free(). All the allocated fields in it remain owned by the caller.

Definition at line 73 of file buffersrc.h.

Field Documentation

int AVBufferSrcParameters::format

video: the pixel format, value corresponds to enum AVPixelFormat audio: the sample format, value corresponds to enum AVSampleFormat

Definition at line 78 of file buffersrc.h.

Referenced by av_buffersrc_parameters_alloc(), av_buffersrc_parameters_set(), and configure_input_video_filter().

AVRational AVBufferSrcParameters::time_base

The timebase to be used for the timestamps on the input frames.

Definition at line 82 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

int AVBufferSrcParameters::width

Video only, the display dimensions of the input frames.

Definition at line 87 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

int AVBufferSrcParameters::height

Definition at line 87 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

AVRational AVBufferSrcParameters::sample_aspect_ratio

Video only, the sample (pixel) aspect ratio.

Definition at line 92 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

AVRational AVBufferSrcParameters::frame_rate

Video only, the frame rate of the input video.

This field must only be set to a non-zero value if input stream has a known constant framerate and should be left at its initial value if the framerate is variable or unknown.

Definition at line 100 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

AVBufferRef* AVBufferSrcParameters::hw_frames_ctx

Video with a hwaccel pixel format only.

This should be a reference to an AVHWFramesContext instance describing the input frames.

Definition at line 106 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set(), and configure_input_video_filter().

int AVBufferSrcParameters::sample_rate

Audio only, the audio sampling rate in samples per secon.

Definition at line 111 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

uint64_t AVBufferSrcParameters::channel_layout

Audio only, the audio channel layout.

Definition at line 116 of file buffersrc.h.

Referenced by av_buffersrc_parameters_set().

The documentation for this struct was generated from the following file:

libavfilter/buffersrc.h

Generated on Fri Jan 12 2018 01:48:29 for FFmpeg by doxygen 1.8.6