FFmpeg: PerThreadContext Struct Reference

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Data Fields

PerThreadContext Struct Reference

Context used by codec threads and stored in their AVCodecInternal thread_ctx. More...

Data Fields

struct FrameThreadContext * parent

pthread_t thread

int thread_init

unsigned pthread_init_cnt

Number of successfully initialized mutexes/conditions. More...

pthread_cond_t input_cond

Used to wait for a new packet from the main thread. More...

pthread_cond_t progress_cond

Used by child threads to wait for progress to change. More...

pthread_cond_t output_cond

Used by the main thread to wait for frames to finish. More...

pthread_mutex_t mutex

Mutex used to protect the contents of the PerThreadContext. More...

pthread_mutex_t progress_mutex

Mutex used to protect frame progress values and progress_cond. More...

AVCodecContext * avctx

Context used to decode packets passed to this thread. More...

AVPacket * avpkt

Input packet (for decoding) or output (for encoding). More...

DecodedFrames df

Decoded frames from a single decode iteration. More...

int result

The result of the last codec decode/encode() call. More...

atomic_int state

int die

Set when the thread should exit. More...

int hwaccel_serializing

int async_serializing

int hwaccel_threadsafe

atomic_int debug_threads

Set if the FF_DEBUG_THREADS option is set. More...

int intra_only_flag

The following two fields have the same semantics as the DecodeContext field. More...

enum AVPictureType initial_pict_type

Detailed Description

Context used by codec threads and stored in their AVCodecInternal thread_ctx.

Definition at line 81 of file pthread_frame.c.

Field Documentation

◆ parent

struct FrameThreadContext* PerThreadContext::parent

Definition at line 82 of file pthread_frame.c.

Referenced by ff_thread_finish_setup(), ff_thread_sync_ref(), frame_worker_thread(), init_thread(), submit_packet(), thread_get_buffer_internal(), and thread_set_name().

◆ thread

pthread_t PerThreadContext::thread

Definition at line 84 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), and init_thread().

◆ thread_init

int PerThreadContext::thread_init

Definition at line 85 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), and init_thread().

◆ pthread_init_cnt

unsigned PerThreadContext::pthread_init_cnt

Number of successfully initialized mutexes/conditions.

Definition at line 86 of file pthread_frame.c.

◆ input_cond

pthread_cond_t PerThreadContext::input_cond

Used to wait for a new packet from the main thread.

Definition at line 87 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), frame_worker_thread(), and submit_packet().

◆ progress_cond

pthread_cond_t PerThreadContext::progress_cond

Used by child threads to wait for progress to change.

Definition at line 88 of file pthread_frame.c.

Referenced by ff_thread_await_progress(), ff_thread_finish_setup(), ff_thread_report_progress(), frame_worker_thread(), and submit_packet().

◆ output_cond

pthread_cond_t PerThreadContext::output_cond

Used by the main thread to wait for frames to finish.

Definition at line 89 of file pthread_frame.c.

Referenced by ff_thread_receive_frame(), frame_worker_thread(), and park_frame_worker_threads().

◆ mutex

pthread_mutex_t PerThreadContext::mutex

Mutex used to protect the contents of the PerThreadContext.

Definition at line 91 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), frame_worker_thread(), and submit_packet().

◆ progress_mutex

pthread_mutex_t PerThreadContext::progress_mutex

Mutex used to protect frame progress values and progress_cond.

Definition at line 92 of file pthread_frame.c.

Referenced by ff_thread_await_progress(), ff_thread_finish_setup(), ff_thread_receive_frame(), ff_thread_report_progress(), frame_worker_thread(), park_frame_worker_threads(), and submit_packet().

◆ avctx

AVCodecContext* PerThreadContext::avctx

Context used to decode packets passed to this thread.

Definition at line 94 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_thread_flush(), ff_thread_receive_frame(), ff_thread_sync_ref(), frame_worker_thread(), init_thread(), submit_packet(), and thread_set_name().

◆ avpkt

AVPacket* PerThreadContext::avpkt

Input packet (for decoding) or output (for encoding).

Definition at line 96 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_thread_get_packet(), init_thread(), and submit_packet().

◆ df

DecodedFrames PerThreadContext::df

Decoded frames from a single decode iteration.

Definition at line 101 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_thread_flush(), ff_thread_receive_frame(), and frame_worker_thread().

◆ result

int PerThreadContext::result

The result of the last codec decode/encode() call.

Definition at line 102 of file pthread_frame.c.

Referenced by ff_thread_flush(), ff_thread_receive_frame(), and frame_worker_thread().

◆ state

atomic_int PerThreadContext::state

Definition at line 104 of file pthread_frame.c.

Referenced by ff_thread_can_start_frame(), ff_thread_finish_setup(), ff_thread_receive_frame(), frame_worker_thread(), init_thread(), park_frame_worker_threads(), submit_packet(), and thread_get_buffer_internal().

◆ die

int PerThreadContext::die

Set when the thread should exit.

Definition at line 106 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), and frame_worker_thread().

◆ hwaccel_serializing

int PerThreadContext::hwaccel_serializing

Definition at line 108 of file pthread_frame.c.

Referenced by ff_thread_finish_setup(), and frame_worker_thread().

◆ async_serializing

int PerThreadContext::async_serializing

Definition at line 109 of file pthread_frame.c.

Referenced by ff_thread_finish_setup(), and frame_worker_thread().

◆ hwaccel_threadsafe

int PerThreadContext::hwaccel_threadsafe

Definition at line 115 of file pthread_frame.c.

Referenced by ff_thread_finish_setup(), submit_packet(), and update_context_from_thread().

◆ debug_threads

atomic_int PerThreadContext::debug_threads

Set if the FF_DEBUG_THREADS option is set.

Definition at line 117 of file pthread_frame.c.

Referenced by ff_thread_await_progress(), ff_thread_report_progress(), init_thread(), and submit_packet().

◆ intra_only_flag

int PerThreadContext::intra_only_flag

The following two fields have the same semantics as the DecodeContext field.

Definition at line 120 of file pthread_frame.c.

Referenced by init_thread().

◆ initial_pict_type

enum AVPictureType PerThreadContext::initial_pict_type

Definition at line 121 of file pthread_frame.c.

Referenced by init_thread().

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

libavcodec/pthread_frame.c

Generated on Fri Aug 22 2025 14:00:25 for FFmpeg by doxygen 1.8.17