#include "libavutil/buffer.h"
#include "avcodec.h"

Functions
void	ff_thread_flush (AVCodecContext *avctx)
	Wait for decoding threads to finish and reset internal state. More...

int	ff_thread_decode_frame (AVCodecContext avctx, AVFrame picture, int got_picture_ptr, AVPacket avpkt)
	Submit a new frame to a decoding thread. More...

int	ff_thread_can_start_frame (AVCodecContext *avctx)

void	ff_thread_finish_setup (AVCodecContext *avctx)
	If the codec defines update_thread_context(), call this when they are ready for the next thread to start decoding the next frame. More...

int	ff_thread_get_buffer (AVCodecContext avctx, AVFrame f, int flags)
	Wrapper around get_buffer() for frame-multithreaded codecs. More...

int	ff_thread_init (AVCodecContext *s)

int	ff_slice_thread_execute_with_mainfunc (AVCodecContext avctx, int(action_func2)(AVCodecContext c, void arg, int jobnr, int threadnr), int(main_func)(AVCodecContext c), void arg, int ret, int job_count)

void	ff_thread_free (AVCodecContext *s)

int	ff_slice_thread_allocz_entries (AVCodecContext *avctx, int count)

int	ff_slice_thread_init_progress (AVCodecContext *avctx)

void	ff_thread_report_progress2 (AVCodecContext *avctx, int field, int thread, int n)

void	ff_thread_await_progress2 (AVCodecContext *avctx, int field, int thread, int shift)

Detailed Description

Multithreading support functions

Author: Alexander Strange astra.nosp@m.nge@.nosp@m.ithin.nosp@m.ksw..nosp@m.com

Definition in file thread.h.

Function Documentation

◆ ff_thread_flush()

void ff_thread_flush ( AVCodecContext * avctx )

Wait for decoding threads to finish and reset internal state.

Called by avcodec_flush_buffers().

Parameters

avctx The context.

Definition at line 896 of file pthread_frame.c.

Referenced by avcodec_flush_buffers().

◆ ff_thread_decode_frame()

int ff_thread_decode_frame	(	AVCodecContext *	avctx,
		AVFrame *	picture,
		int *	got_picture_ptr,
		AVPacket *	avpkt
	)

Submit a new frame to a decoding thread.

Returns the next available frame in picture. *got_picture_ptr will be 0 if none is available. The return value on success is the size of the consumed packet for compatibility with FFCodec.decode. This means the decoder has to consume the full packet.

Parameters are the same as FFCodec.decode.

Definition at line 488 of file pthread_frame.c.

Referenced by decode_simple_internal().

◆ ff_thread_can_start_frame()

int ff_thread_can_start_frame ( AVCodecContext * avctx )

Definition at line 924 of file pthread_frame.c.

Referenced by ff_mpv_frame_start(), and h264_frame_start().

◆ ff_thread_finish_setup()

void ff_thread_finish_setup ( AVCodecContext * avctx )

If the codec defines update_thread_context(), call this when they are ready for the next thread to start decoding the next frame.

After calling it, do not change any variables read by the update_thread_context() method, or call ff_thread_get_buffer().

Parameters

avctx The context.

Definition at line 617 of file pthread_frame.c.

Referenced by frame_worker_thread().

◆ ff_thread_get_buffer()

int ff_thread_get_buffer	(	AVCodecContext *	avctx,
		AVFrame *	f,
		int	flags
	)

Wrapper around get_buffer() for frame-multithreaded codecs.

Call this function instead of ff_get_buffer(f). Cannot be called after the codec has called ff_thread_finish_setup().

Parameters

avctx	The current context.
f	The frame to write into.

Definition at line 960 of file pthread_frame.c.

Referenced by ff_thread_get_ext_buffer().

◆ ff_thread_init()

int ff_thread_init ( AVCodecContext * s )

Definition at line 71 of file pthread.c.

Referenced by avcodec_open2().

◆ ff_slice_thread_execute_with_mainfunc()

int ff_slice_thread_execute_with_mainfunc	(	AVCodecContext *	avctx,
		int()(AVCodecContext c, void *arg, int jobnr, int threadnr)	action_func2,
		int()(AVCodecContext c)	main_func,
		void *	arg,
		int *	ret,
		int	job_count
	)