FFmpeg: PerThreadContext Struct Reference

FFmpeg

Public Types | Data Fields

PerThreadContext Struct Reference

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

Public Types

enum {
STATE_INPUT_READY, STATE_SETTING_UP, STATE_GET_BUFFER, STATE_GET_FORMAT,
STATE_SETUP_FINISHED
}

Data Fields

struct FrameThreadContext * parent

pthread_t thread

int thread_init

pthread_cond_t input_cond

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

pthread_cond_t progress_cond

Used by child threads to wait for progress to change.

pthread_cond_t output_cond

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

pthread_mutex_t mutex

Mutex used to protect the contents of the PerThreadContext.

pthread_mutex_t progress_mutex

Mutex used to protect frame progress values and progress_cond.

AVCodecContext * avctx

Context used to decode packets passed to this thread.

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

AVFrame * frame

Output frame (for decoding) or input (for encoding).

The output of got_picture_ptr from the last avcodec_decode_video() call.

int result

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

enum PerThreadContext:: { ... } state

AVFrame * released_buffers

Array of frames passed to ff_thread_release_buffer().

int num_released_buffers

int released_buffers_allocated

AVFrame * requested_frame

AVFrame the codec passed to get_buffer()

int requested_flags

flags passed to get_buffer() for requested_frame

enum AVPixelFormat * available_formats

Format array for get_format()

enum AVPixelFormat result_format

get_format() result

Detailed Description

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

Definition at line 55 of file pthread_frame.c.

Member Enumeration Documentation

anonymous enum

Enumerator:: STATE_INPUT_READY
Set when the thread is awaiting a packet.

STATE_SETTING_UP
Set before the codec has called ff_thread_finish_setup().

STATE_GET_BUFFER
Set when the codec calls get_buffer().

State is returned to STATE_SETTING_UP afterwards.

STATE_GET_FORMAT
Set when the codec calls get_format().

State is returned to STATE_SETTING_UP afterwards.

STATE_SETUP_FINISHED
Set after the codec has called ff_thread_finish_setup().

Definition at line 75 of file pthread_frame.c.

Field Documentation

struct FrameThreadContext* PerThreadContext::parent

Definition at line 56 of file pthread_frame.c.

Referenced by ff_frame_thread_init(), ff_thread_release_buffer(), frame_worker_thread(), release_delayed_buffers(), submit_packet(), and thread_get_buffer_internal().

pthread_t PerThreadContext::thread

Definition at line 58 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), and ff_frame_thread_init().

int PerThreadContext::thread_init

Definition at line 59 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), and ff_frame_thread_init().

pthread_cond_t PerThreadContext::input_cond

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

Definition at line 60 of file pthread_frame.c.

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

pthread_cond_t PerThreadContext::progress_cond

Used by child threads to wait for progress to change.

Definition at line 61 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_frame_thread_init(), ff_thread_await_progress(), ff_thread_finish_setup(), ff_thread_get_format(), ff_thread_report_progress(), frame_worker_thread(), submit_packet(), and thread_get_buffer_internal().

pthread_cond_t PerThreadContext::output_cond

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

Definition at line 62 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_frame_thread_init(), ff_thread_decode_frame(), frame_worker_thread(), and park_frame_worker_threads().

pthread_mutex_t PerThreadContext::mutex

Mutex used to protect the contents of the PerThreadContext.

Definition at line 64 of file pthread_frame.c.

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

pthread_mutex_t PerThreadContext::progress_mutex

Mutex used to protect frame progress values and progress_cond.

Definition at line 65 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_frame_thread_init(), ff_thread_await_progress(), ff_thread_decode_frame(), ff_thread_finish_setup(), ff_thread_get_format(), ff_thread_report_progress(), frame_worker_thread(), park_frame_worker_threads(), submit_packet(), and thread_get_buffer_internal().

AVCodecContext* PerThreadContext::avctx

Context used to decode packets passed to this thread.

Definition at line 67 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_frame_thread_init(), ff_thread_decode_frame(), ff_thread_flush(), frame_worker_thread(), release_delayed_buffers(), and submit_packet().

AVPacket PerThreadContext::avpkt

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

Definition at line 69 of file pthread_frame.c.

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

AVFrame* PerThreadContext::frame

Output frame (for decoding) or input (for encoding).

Definition at line 71 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_frame_thread_init(), ff_thread_decode_frame(), ff_thread_flush(), and frame_worker_thread().

int PerThreadContext::got_frame

The output of got_picture_ptr from the last avcodec_decode_video() call.

Definition at line 72 of file pthread_frame.c.

Referenced by ff_thread_decode_frame(), ff_thread_flush(), frame_worker_thread(), and park_frame_worker_threads().

int PerThreadContext::result

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

Definition at line 73 of file pthread_frame.c.

Referenced by ff_thread_decode_frame(), frame_worker_thread(), submit_packet(), and thread_get_buffer_internal().

enum { ... } PerThreadContext::state

Referenced by ff_thread_can_start_frame(), ff_thread_decode_frame(), ff_thread_finish_setup(), ff_thread_get_format(), frame_worker_thread(), park_frame_worker_threads(), submit_packet(), and thread_get_buffer_internal().

AVFrame* PerThreadContext::released_buffers

Array of frames passed to ff_thread_release_buffer().

Frames are released after all threads referencing them are finished.

Definition at line 93 of file pthread_frame.c.

Referenced by ff_frame_thread_free(), ff_thread_release_buffer(), and release_delayed_buffers().

int PerThreadContext::num_released_buffers

Definition at line 94 of file pthread_frame.c.

Referenced by ff_thread_release_buffer(), and release_delayed_buffers().

int PerThreadContext::released_buffers_allocated

Definition at line 95 of file pthread_frame.c.

Referenced by ff_thread_release_buffer().

AVFrame* PerThreadContext::requested_frame

AVFrame the codec passed to get_buffer()

Definition at line 97 of file pthread_frame.c.

Referenced by submit_packet(), and thread_get_buffer_internal().

int PerThreadContext::requested_flags

flags passed to get_buffer() for requested_frame

Definition at line 98 of file pthread_frame.c.

Referenced by submit_packet(), and thread_get_buffer_internal().

enum AVPixelFormat* PerThreadContext::available_formats

Format array for get_format()

Definition at line 100 of file pthread_frame.c.

Referenced by ff_thread_get_format(), and submit_packet().

enum AVPixelFormat PerThreadContext::result_format

get_format() result

Definition at line 101 of file pthread_frame.c.

Referenced by ff_thread_get_format(), and submit_packet().

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

libavcodec/pthread_frame.c

Generated on Sun Sep 14 2014 18:56:44 for FFmpeg by doxygen 1.8.2