FFmpeg: AVCodecInternal Struct Reference

FFmpeg 4.0

#include <libavcodec/internal.h>

Data Fields
int	is_copy
	Whether the parent AVCodecContext is a copy of the context which had init() called on it. More...

int	allocate_progress
	Whether to allocate progress for frame threading. More...

int	last_audio_frame
	An audio frame with less than required samples has been submitted and padded with silence. More...

AVFrame *	to_free

FramePool *	pool

void *	thread_ctx

DecodeSimpleContext	ds

DecodeFilterContext	filter

AVPacket *	last_pkt_props
	Properties (timestamps+side data) extracted from the last packet passed for decoding. More...

uint8_t *	byte_buffer
	temporary buffer used for encoders to store their bitstream More...

unsigned int	byte_buffer_size

void *	frame_thread_encoder

int	skip_samples
	Number of audio samples to skip at the start of the next decoded frame. More...

void *	hwaccel_priv_data
	hwaccel-specific private data More...

int	draining
	checks API usage: after codec draining, flush is required to resume operation More...

AVPacket *	buffer_pkt
	buffers for using new encode/decode API through legacy API More...

int	buffer_pkt_valid

AVFrame *	buffer_frame

int	draining_done

int	compat_decode

int	compat_decode_warned

size_t	compat_decode_consumed

size_t	compat_decode_partial_size

AVFrame *	compat_decode_frame

int	showed_multi_packet_warning

int	skip_samples_multiplier

int	nb_draining_errors

Detailed Description

Definition at line 129 of file internal.h.

Field Documentation

◆ is_copy

int AVCodecInternal::is_copy

Whether the parent AVCodecContext is a copy of the context which had init() called on it.

This is used by multithreading - shared tables and picture pointers should be freed from the original context only.

Definition at line 136 of file internal.h.

Referenced by cfhd_close(), decode_end(), ff_frame_thread_free(), ff_frame_thread_init(), ff_rv34_decode_init_thread_copy(), h264_decode_init(), hqx_decode_close(), mimic_decode_end(), png_dec_init(), and vp3_decode_end().

◆ allocate_progress

int AVCodecInternal::allocate_progress

Whether to allocate progress for frame threading.

The codec must set it to 1 if it uses ff_thread_await/report_progress(), then progress will be allocated in ff_thread_get_buffer(). The frames then MUST be freed with ff_thread_release_buffer().

If the codec does not need to call the progress functions (there are no dependencies between the frames), it should leave this at 0. Then it can decode straight to the user-provided frames (which the user will then free with av_frame_unref()), there is no need to call ff_thread_release_buffer().

Definition at line 151 of file internal.h.

Referenced by decode_init(), ff_rv34_decode_init(), frame_worker_thread(), h264_decode_init(), hevc_decode_init(), mimic_decode_init(), png_dec_init(), thread_get_buffer_internal(), vp3_decode_init(), vp78_decode_init(), and vp9_decode_init().

◆ last_audio_frame

int AVCodecInternal::last_audio_frame

An audio frame with less than required samples has been submitted and padded with silence.

Reject all subsequent frames.

Definition at line 157 of file internal.h.

Referenced by avcodec_encode_audio2().

◆ to_free

AVFrame* AVCodecInternal::to_free

Definition at line 159 of file internal.h.

Referenced by avcodec_close(), avcodec_flush_buffers(), avcodec_open2(), and unrefcount_frame().

◆ pool

FramePool* AVCodecInternal::pool

Definition at line 161 of file internal.h.

Referenced by audio_get_buffer(), avcodec_close(), avcodec_open2(), update_frame_pool(), and video_get_buffer().

◆ thread_ctx

◆ ds

DecodeSimpleContext AVCodecInternal::ds

Definition at line 165 of file internal.h.

Referenced by avcodec_close(), avcodec_flush_buffers(), avcodec_open2(), and decode_simple_internal().

◆ filter

DecodeFilterContext AVCodecInternal::filter

Definition at line 166 of file internal.h.

Referenced by avcodec_send_packet(), bsfs_init(), bsfs_poll(), and ff_decode_bsfs_uninit().

◆ last_pkt_props

AVPacket* AVCodecInternal::last_pkt_props

Properties (timestamps+side data) extracted from the last packet passed for decoding.

Definition at line 172 of file internal.h.

Referenced by avcodec_close(), avcodec_open2(), decode_simple_internal(), extract_packet_props(), ff_decode_frame_props(), and ff_frame_thread_init().

◆ byte_buffer

uint8_t* AVCodecInternal::byte_buffer

temporary buffer used for encoders to store their bitstream

Definition at line 177 of file internal.h.

Referenced by avcodec_close(), avcodec_encode_audio2(), avcodec_encode_video2(), ff_alloc_packet2(), ff_mpv_encode_picture(), and ff_mpv_reallocate_putbitbuffer().

◆ byte_buffer_size

unsigned int AVCodecInternal::byte_buffer_size

Definition at line 178 of file internal.h.

Referenced by avcodec_close(), encode_thread(), ff_alloc_packet2(), ff_mpv_encode_picture(), and ff_mpv_reallocate_putbitbuffer().

◆ frame_thread_encoder

void* AVCodecInternal::frame_thread_encoder

Definition at line 180 of file internal.h.

Referenced by avcodec_close(), avcodec_encode_video2(), avcodec_open2(), ff_frame_thread_encoder_free(), ff_frame_thread_encoder_init(), ff_thread_video_encode_frame(), and worker().

◆ skip_samples

int AVCodecInternal::skip_samples

Number of audio samples to skip at the start of the next decoded frame.

Definition at line 185 of file internal.h.

Referenced by cng_decode_frame(), decode_fill(), decode_simple_internal(), libopus_decode_init(), and libopus_flush().

◆ hwaccel_priv_data

void* AVCodecInternal::hwaccel_priv_data

hwaccel-specific private data

Definition at line 190 of file internal.h.

Referenced by avcodec_close(), ff_nvdec_decode_init(), ff_nvdec_decode_uninit(), ff_nvdec_end_frame(), ff_nvdec_simple_decode_slice(), ff_nvdec_simple_end_frame(), ff_nvdec_start_frame(), ff_vaapi_decode_destroy_buffers(), ff_vaapi_decode_init(), ff_vaapi_decode_issue(), ff_vaapi_decode_make_param_buffer(), ff_vaapi_decode_make_slice_buffer(), ff_vaapi_decode_uninit(), ff_vdpau_common_end_frame(), ff_vdpau_common_init(), ff_vdpau_common_reinit(), ff_vdpau_common_uninit(), ff_videotoolbox_avcc_extradata_create(), ff_videotoolbox_h264_decode_slice(), ff_videotoolbox_h264_start_frame(), ff_videotoolbox_uninit(), hwaccel_init(), hwaccel_uninit(), nvdec_h264_decode_slice(), nvdec_h264_start_frame(), nvdec_hevc_decode_slice(), nvdec_hevc_start_frame(), nvdec_mjpeg_start_frame(), nvdec_mpeg12_start_frame(), nvdec_mpeg4_start_frame(), nvdec_vc1_start_frame(), nvdec_vp8_start_frame(), nvdec_vp9_start_frame(), update_context_from_thread(), vaapi_decode_find_best_format(), videotoolbox_h264_decode_params(), and videotoolbox_set_frame().

◆ draining

int AVCodecInternal::draining

checks API usage: after codec draining, flush is required to resume operation

Definition at line 195 of file internal.h.

Referenced by avcodec_flush_buffers(), avcodec_receive_packet(), avcodec_send_frame(), avcodec_send_packet(), compat_decode(), decode_simple_internal(), and ff_decode_get_packet().

◆ buffer_pkt

AVPacket* AVCodecInternal::buffer_pkt

buffers for using new encode/decode API through legacy API

Definition at line 200 of file internal.h.

Referenced by avcodec_close(), avcodec_flush_buffers(), avcodec_open2(), avcodec_receive_packet(), avcodec_send_packet(), and do_encode().

◆ buffer_pkt_valid

int AVCodecInternal::buffer_pkt_valid

Definition at line 201 of file internal.h.

Referenced by avcodec_flush_buffers(), avcodec_receive_packet(), avcodec_send_frame(), and do_encode().

◆ buffer_frame

AVFrame* AVCodecInternal::buffer_frame

Definition at line 202 of file internal.h.

Referenced by avcodec_close(), avcodec_flush_buffers(), avcodec_open2(), avcodec_receive_frame(), and avcodec_send_packet().

◆ draining_done

int AVCodecInternal::draining_done

Definition at line 203 of file internal.h.

Referenced by avcodec_flush_buffers(), compat_decode(), decode_receive_frame_internal(), and decode_simple_internal().

◆ compat_decode

int AVCodecInternal::compat_decode

Definition at line 205 of file internal.h.

Referenced by compat_decode().

◆ compat_decode_warned

int AVCodecInternal::compat_decode_warned

Definition at line 206 of file internal.h.

Referenced by compat_decode().

◆ compat_decode_consumed

size_t AVCodecInternal::compat_decode_consumed

Definition at line 209 of file internal.h.

Referenced by compat_decode(), decode_simple_internal(), and ff_decode_get_packet().

◆ compat_decode_partial_size

size_t AVCodecInternal::compat_decode_partial_size

Definition at line 212 of file internal.h.

Referenced by compat_decode().

◆ compat_decode_frame

AVFrame* AVCodecInternal::compat_decode_frame

Definition at line 213 of file internal.h.

Referenced by avcodec_close(), avcodec_flush_buffers(), avcodec_open2(), and compat_decode().

◆ showed_multi_packet_warning

int AVCodecInternal::showed_multi_packet_warning

Definition at line 215 of file internal.h.

Referenced by decode_simple_internal().

◆ skip_samples_multiplier

int AVCodecInternal::skip_samples_multiplier

Definition at line 217 of file internal.h.

Referenced by aac_decode_frame_int(), avcodec_open2(), and decode_simple_internal().

◆ nb_draining_errors

int AVCodecInternal::nb_draining_errors

Definition at line 220 of file internal.h.

Referenced by avcodec_flush_buffers(), and decode_simple_internal().

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

libavcodec/internal.h