#include "avfilter.h"
Go to the source code of this file.
Data Structures | |
| struct | AVBufferSinkParams |
| Struct to use for initializing a buffersink context. More... | |
| struct | AVABufferSinkParams |
| Struct to use for initializing an abuffersink context. More... | |
Defines | |
| #define | AV_BUFFERSINK_FLAG_PEEK 1 |
| Tell av_buffersink_get_buffer_ref() to read video/samples buffer reference, but not remove it from the buffer. | |
| #define | AV_BUFFERSINK_FLAG_NO_REQUEST 2 |
| Tell av_buffersink_get_buffer_ref() not to request a frame from its input. | |
Functions | |
| AVBufferSinkParams * | av_buffersink_params_alloc (void) |
| Create an AVBufferSinkParams structure. | |
| AVABufferSinkParams * | av_abuffersink_params_alloc (void) |
| Create an AVABufferSinkParams structure. | |
| void | av_buffersink_set_frame_size (AVFilterContext *ctx, unsigned frame_size) |
| Set the frame size for an audio buffer sink. | |
| int | av_buffersink_get_buffer_ref (AVFilterContext *buffer_sink, AVFilterBufferRef **bufref, int flags) |
| Get an audio/video buffer data from buffer_sink and put it in bufref. | |
| int | av_buffersink_poll_frame (AVFilterContext *ctx) |
| Get the number of immediately available frames. | |
| AVRational | av_buffersink_get_frame_rate (AVFilterContext *ctx) |
| Get the frame rate of the input. | |
| int | av_buffersink_read (AVFilterContext *ctx, AVFilterBufferRef **buf) |
| Get a buffer with filtered data from sink and put it in buf. | |
| int | av_buffersink_read_samples (AVFilterContext *ctx, AVFilterBufferRef **buf, int nb_samples) |
| Same as av_buffersink_read, but with the ability to specify the number of samples read. | |
Definition in file buffersink.h.
| #define AV_BUFFERSINK_FLAG_NO_REQUEST 2 |
Tell av_buffersink_get_buffer_ref() not to request a frame from its input.
If a frame is already buffered, it is read (and removed from the buffer), but if no frame is present, return AVERROR(EAGAIN).
Definition at line 79 of file buffersink.h.
Referenced by av_buffersink_get_buffer_ref(), and reap_filters().
| #define AV_BUFFERSINK_FLAG_PEEK 1 |
Tell av_buffersink_get_buffer_ref() to read video/samples buffer reference, but not remove it from the buffer.
This is useful if you need only to read a video/samples buffer, without to fetch it.
Definition at line 72 of file buffersink.h.
Referenced by av_buffersink_get_buffer_ref(), av_buffersink_read(), av_buffersink_read_samples(), and lavfi_read_packet().
| AVABufferSinkParams* av_abuffersink_params_alloc | ( | void | ) |
Create an AVABufferSinkParams structure.
Must be freed with av_free().
Definition at line 45 of file sink_buffer.c.
Referenced by init_filters(), and lavfi_read_header().
| int av_buffersink_get_buffer_ref | ( | AVFilterContext * | buffer_sink, | |
| AVFilterBufferRef ** | bufref, | |||
| int | flags | |||
| ) |
Get an audio/video buffer data from buffer_sink and put it in bufref.
This function works with both audio and video buffer sinks.
| buffer_sink | pointer to a buffersink or abuffersink context | |
| flags | a combination of AV_BUFFERSINK_FLAG_* flags |
Definition at line 149 of file sink_buffer.c.
Referenced by av_buffersink_read(), av_buffersink_read_samples(), lavfi_read_packet(), main(), reap_filters(), and video_thread().
| AVRational av_buffersink_get_frame_rate | ( | AVFilterContext * | ctx | ) |
Get the frame rate of the input.
Definition at line 181 of file sink_buffer.c.
Referenced by transcode_init().
| AVBufferSinkParams* av_buffersink_params_alloc | ( | void | ) |
Create an AVBufferSinkParams structure.
Must be freed with av_free().
Definition at line 34 of file sink_buffer.c.
Referenced by configure_output_video_filter(), init_filters(), and lavfi_read_header().
| int av_buffersink_poll_frame | ( | AVFilterContext * | ctx | ) |
| void av_buffersink_set_frame_size | ( | AVFilterContext * | ctx, | |
| unsigned | frame_size | |||
| ) |
Set the frame size for an audio buffer sink.
All calls to av_buffersink_get_buffer_ref will return a buffer with exactly the specified number of samples, or AVERROR(EAGAIN) if there is not enough. The last buffer at EOF will be padded with 0.
Definition at line 141 of file sink_buffer.c.
Referenced by decode_audio(), and transcode_init().
1.5.8