encode.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/emms.h"
#include "libavutil/frame.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/pixdesc.h"
#include "libavutil/samplefmt.h"
#include "avcodec.h"
#include "avcodec_internal.h"
#include "codec_desc.h"
#include "codec_internal.h"
#include "encode.h"
#include "frame_thread_encoder.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	EncodeContext

Functions
static EncodeContext *	encode_ctx (AVCodecInternal *avci)
int	ff_alloc_packet (AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
	Check AVPacket size and allocate data. More...
int	avcodec_default_get_encode_buffer (AVCodecContext *avctx, AVPacket *avpkt, int flags)
	The default callback for AVCodecContext.get_encode_buffer(). More...
int	ff_get_encode_buffer (AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int flags)
	Get a buffer for a packet. More...
static int	encode_make_refcounted (AVCodecContext *avctx, AVPacket *avpkt)
static int	pad_last_frame (AVCodecContext *s, AVFrame *frame, const AVFrame *src, int out_samples)
	Pad last frame with silence. More...
int	avcodec_encode_subtitle (AVCodecContext *avctx, uint8_t *buf, int buf_size, const AVSubtitle *sub)
int	ff_encode_get_frame (AVCodecContext *avctx, AVFrame *frame)
	Called by encoders to get the next frame for encoding. More...
int	ff_encode_reordered_opaque (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame)
	Propagate user opaque values from the frame to avctx/pkt as needed. More...
int	ff_encode_encode_cb (AVCodecContext *avctx, AVPacket *avpkt, AVFrame *frame, int *got_packet)
static int	encode_simple_internal (AVCodecContext *avctx, AVPacket *avpkt)
static int	encode_simple_receive_packet (AVCodecContext *avctx, AVPacket *avpkt)
static int	encode_receive_packet_internal (AVCodecContext *avctx, AVPacket *avpkt)
static int	encode_generate_icc_profile (av_unused AVCodecContext *c, av_unused AVFrame *f)
static int	encode_send_frame_internal (AVCodecContext *avctx, const AVFrame *src)
int attribute_align_arg	avcodec_send_frame (AVCodecContext *avctx, const AVFrame *frame)
	Supply a raw video or audio frame to the encoder. More...
int attribute_align_arg	avcodec_receive_packet (AVCodecContext *avctx, AVPacket *avpkt)
	Read encoded data from the encoder. More...
static int	encode_preinit_video (AVCodecContext *avctx)
static int	encode_preinit_audio (AVCodecContext *avctx)
int	ff_encode_preinit (AVCodecContext *avctx)
int	ff_encode_alloc_frame (AVCodecContext *avctx, AVFrame *frame)
	Allocate buffers for a frame. More...
int	ff_encode_receive_frame (AVCodecContext *avctx, AVFrame *frame)
	avcodec_receive_frame() implementation for encoders. More...
void	ff_encode_flush_buffers (AVCodecContext *avctx)
AVCodecInternal *	ff_encode_internal_alloc (void)
AVCPBProperties *	ff_encode_add_cpb_side_data (AVCodecContext *avctx)
	Add a CPB properties side data to an encoding context. More...

Function Documentation

encode_ctx()

static EncodeContext* encode_ctx ( AVCodecInternal *  avci )

static

Definition at line 56 of file encode.c.

Referenced by encode_receive_packet_internal(), encode_send_frame_internal(), ff_encode_preinit(), and pad_last_frame().

ff_alloc_packet()

int ff_alloc_packet	(	AVCodecContext *	avctx,
		AVPacket *	avpkt,
		int64_t	size
	)

Check AVPacket size and allocate data.

Encoders of type FF_CODEC_CB_TYPE_ENCODE can use this as a convenience to obtain a big enough buffer for the encoded bitstream.

Parameters

avctx	the AVCodecContext of the encoder
avpkt	The AVPacket: on success, avpkt->data will point to a buffer of size at least size; the packet will not be refcounted. This packet must be initially blank.
size	an upper bound of the size of the packet to encode

Returns

non negative on success, negative error code on failure

Definition at line 61 of file encode.c.

Referenced by aac_encode_frame(), alac_encode_frame(), amr_wb_encode_frame(), cfhd_encode_frame(), cinepak_encode_frame(), dxv_encode(), encode_frame(), encode_png(), encode_superframe(), ff_mpv_encode_picture(), ffat_encode(), flashsv2_encode_frame(), flashsv_encode_frame(), gif_encode_frame(), hap_encode(), ilbc_encode_frame(), libopenjpeg_encode_frame(), libopus_encode(), ljpeg_encode_frame(), magy_encode_frame(), mlp_encode_frame(), MPA_encode_frame(), msrle_encode_frame(), opus_encode_frame(), pcx_encode_frame(), prores_encode_frame(), qoi_encode_frame(), qtrle_encode_frame(), roq_encode_frame(), rpza_encode_frame(), smc_encode_frame(), sunrast_encode_frame(), svq1_encode_frame(), targa_encode_frame(), tta_encode_frame(), twolame_encode_frame(), utvideo_encode_frame(), vorbis_encode_frame(), wavpack_encode_frame(), xbm_encode_frame(), and xvid_encode_frame().

ff_get_encode_buffer()

int ff_get_encode_buffer	(	AVCodecContext *	avctx,
		AVPacket *	avpkt,
		int64_t	size,
		int	flags
	)

Get a buffer for a packet.

This is a wrapper around AVCodecContext.get_encode_buffer() and should be used instead calling get_encode_buffer() directly.

Definition at line 105 of file encode.c.

Referenced by a64multi_encode_frame(), adx_encode_frame(), amf_copy_buffer(), aptx_encode_frame(), avui_encode_frame(), bmp_encode_frame(), cng_encode_frame(), dfpwm_enc_frame(), dnxhd_encode_picture(), dvvideo_encode_frame(), encode_apng(), encode_frame(), encode_make_refcounted(), encode_nals(), encode_picture_ls(), encode_yuv422p10(), ff_ac3_encode_frame_common_end(), fits_encode_frame(), flac_encode_frame(), g723_1_encode_frame(), hdr_encode_frame(), libcodec2_encode(), libgsm_encode_frame(), libjxl_encode_frame(), libkvazaar_encode(), librav1e_receive_packet(), libshine_encode_frame(), libvorbis_encode_frame(), libwebp_anim_encode_frame(), libwebp_encode_frame(), libx265_encode_frame(), libxeve_encode(), mediacodec_receive(), mf_sample_to_avpacket(), mp3lame_encode_frame(), pam_encode_frame(), pcm_bluray_encode_frame(), pcm_dvd_encode_frame(), pcm_encode_frame(), pnm_encode_frame(), process_output_surface(), ra144_encode_frame(), raw_encode(), roq_dpcm_encode_frame(), s302m_encode2_frame(), sbc_encode_frame(), storeframe(), svc_encode_frame(), v308_encode_frame(), v408_encode_frame(), v410_encode_frame(), vaapi_encode_get_coded_data(), vaapi_encode_output(), vbn_encode(), vtenc_cm_to_avpacket(), wbmp_encode_frame(), xavs2_encode_frame(), XAVS_frame(), xface_encode_frame(), xwd_encode_frame(), y41p_encode_frame(), and yuv4_encode_frame().

encode_make_refcounted()

static int encode_make_refcounted ( AVCodecContext *  avctx, AVPacket *  avpkt  )

static

Definition at line 136 of file encode.c.

Referenced by ff_encode_encode_cb().

pad_last_frame()

static int pad_last_frame ( AVCodecContext *  s, AVFrame *  frame, const AVFrame *  src, int  out_samples  )

static

Pad last frame with silence.

Definition at line 156 of file encode.c.

Referenced by encode_send_frame_internal().

ff_encode_get_frame()

int ff_encode_get_frame	(	AVCodecContext *	avctx,
		AVFrame *	frame
	)

Called by encoders to get the next frame for encoding.

Parameters

frame

An empty frame to be filled with data.

Returns

0 if a new reference has been successfully written to frame AVERROR(EAGAIN) if no data is currently available AVERROR_EOF if end of stream has been reached, so no more data will be available

Definition at line 204 of file encode.c.

Referenced by eb_receive_packet(), encode_simple_internal(), ff_amf_receive_packet(), ff_nvenc_receive_packet(), ff_vaapi_encode_receive_packet(), librav1e_receive_packet(), mediacodec_encode(), mf_receive_packet(), and v4l2_receive_packet().

ff_encode_reordered_opaque()

int ff_encode_reordered_opaque	(	AVCodecContext *	avctx,
		AVPacket *	pkt,
		const AVFrame *	frame
	)

Propagate user opaque values from the frame to avctx/pkt as needed.

Definition at line 234 of file encode.c.

Referenced by encode_apng(), encode_frame(), ff_encode_encode_cb(), and ff_mpv_encode_picture().

ff_encode_encode_cb()

int ff_encode_encode_cb	(	AVCodecContext *	avctx,
		AVPacket *	avpkt,
		AVFrame *	frame,
		int *	got_packet
	)

Definition at line 247 of file encode.c.

Referenced by encode_simple_internal(), and worker().

encode_simple_internal()

static int encode_simple_internal ( AVCodecContext *  avctx, AVPacket *  avpkt  )

static

Definition at line 304 of file encode.c.

Referenced by encode_simple_receive_packet().

encode_simple_receive_packet()

static int encode_simple_receive_packet ( AVCodecContext *  avctx, AVPacket *  avpkt  )

static

Definition at line 348 of file encode.c.

Referenced by encode_receive_packet_internal().

encode_receive_packet_internal()

static int encode_receive_packet_internal ( AVCodecContext *  avctx, AVPacket *  avpkt  )

static

Definition at line 361 of file encode.c.

Referenced by avcodec_receive_packet(), and avcodec_send_frame().

encode_generate_icc_profile()

static int encode_generate_icc_profile ( av_unused AVCodecContext *  c, av_unused AVFrame *  f  )

static

Definition at line 438 of file encode.c.

Referenced by encode_send_frame_internal().

encode_send_frame_internal()

static int encode_send_frame_internal ( AVCodecContext *  avctx, const AVFrame *  src  )

static

Definition at line 444 of file encode.c.

Referenced by avcodec_send_frame().

encode_preinit_video()

static int encode_preinit_video ( AVCodecContext *  avctx )

static

Definition at line 561 of file encode.c.

Referenced by ff_encode_preinit().

encode_preinit_audio()

static int encode_preinit_audio ( AVCodecContext *  avctx )

static

Definition at line 645 of file encode.c.

Referenced by ff_encode_preinit().

ff_encode_preinit()

int ff_encode_preinit

(

AVCodecContext *

avctx

)

Definition at line 731 of file encode.c.

Referenced by avcodec_open2().

ff_encode_alloc_frame()

int ff_encode_alloc_frame	(	AVCodecContext *	avctx,
		AVFrame *	frame
	)

Allocate buffers for a frame.

Encoder equivalent to ff_get_buffer().

Definition at line 794 of file encode.c.

Referenced by alloc_picture(), get_encode_buffer(), librav1e_receive_packet(), roq_encode_frame(), and svq1_encode_frame().

ff_encode_receive_frame()

int ff_encode_receive_frame	(	AVCodecContext *	avctx,
		AVFrame *	frame
	)

avcodec_receive_frame() implementation for encoders.

Definition at line 828 of file encode.c.

Referenced by avcodec_receive_frame().

ff_encode_flush_buffers()

void ff_encode_flush_buffers

(

AVCodecContext *

avctx

)

Definition at line 841 of file encode.c.

Referenced by avcodec_flush_buffers().

ff_encode_internal_alloc()

AVCodecInternal* ff_encode_internal_alloc

(

void

)

Definition at line 851 of file encode.c.

Referenced by avcodec_open2().

ff_encode_add_cpb_side_data()

AVCPBProperties* ff_encode_add_cpb_side_data

(

AVCodecContext *

avctx

)

Add a CPB properties side data to an encoding context.

Definition at line 856 of file encode.c.

Referenced by aom_init(), config_enc_params(), ff_mpv_encode_init(), libx265_encode_init(), nvenc_setup_encoder(), qsv_retrieve_enc_params(), svc_encode_init(), vpx_init(), and X264_init().