AVFilterBufferRefAudioProps Struct Reference

Audio specific properties in a reference to an AVFilterBuffer. More...

#include <avfilter.h>

Data Fields
uint64_t	channel_layout
	channel layout of audio buffer
int	nb_samples
	number of audio samples per channel
int	sample_rate
	audio buffer sample rate
int	channels
	number of channels (do not access directly)

Detailed Description

Audio specific properties in a reference to an AVFilterBuffer.

Since AVFilterBufferRef is common to different media formats, audio specific per reference properties must be separated out.

Examples:

doc/examples/filtering_audio.c.

Definition at line 127 of file avfilter.h.

Field Documentation

uint64_t AVFilterBufferRefAudioProps::channel_layout

channel layout of audio buffer

Examples:

doc/examples/filtering_audio.c.

Definition at line 128 of file avfilter.h.

Referenced by av_buffersrc_add_ref(), avfilter_copy_buf_props(), avfilter_copy_frame_props(), avfilter_get_audio_buffer_ref_from_arrays_channels(), avfilter_ref_buffer(), calc_ptr_alignment(), ff_filter_frame(), ff_filter_frame_framed(), ff_tlog_ref(), filter_frame(), lavfi_read_packet(), print_samplesref(), push_samples(), and request_frame().

int AVFilterBufferRefAudioProps::nb_samples

number of audio samples per channel

Examples:

doc/examples/filtering_audio.c.

Definition at line 129 of file avfilter.h.

Referenced by av_buffersink_read_samples(), avfilter_copy_buf_props(), avfilter_get_audio_buffer_ref_from_arrays_channels(), buffer_offset(), describe_bufref_to_str(), ff_copy_buffer_ref(), ff_filter_frame(), ff_filter_frame_framed(), ff_filter_frame_needs_framing(), ff_tlog_ref(), filter_frame(), join_request_frame(), lavfi_read_packet(), print_samplesref(), push_frame(), push_samples(), request_frame(), return_audio_frame(), select_frame(), send_out(), and write_to_fifo().

int AVFilterBufferRefAudioProps::sample_rate

audio buffer sample rate

Definition at line 130 of file avfilter.h.

Referenced by av_asrc_buffer_add_samples(), av_buffersrc_add_ref(), avfilter_copy_buf_props(), avfilter_copy_frame_props(), ff_default_get_audio_buffer(), ff_filter_frame(), ff_tlog_ref(), filter_frame(), push_samples(), and request_frame().

int AVFilterBufferRefAudioProps::channels

number of channels (do not access directly)

Definition at line 131 of file avfilter.h.

Referenced by avfilter_copy_buf_props(), avfilter_copy_frame_props(), avfilter_get_audio_buffer_ref_from_arrays_channels(), avfilter_ref_get_channels(), ff_copy_buffer_ref(), ff_filter_frame(), ff_filter_frame_needs_framing(), filter_frame(), and request_frame().

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

• libavfilter/avfilter.h