#include <stdint.h>
#include <stdlib.h>
#include <oapv/oapv.h>
#include "libavutil/avassert.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
#include "apv.h"
#include "codec_internal.h"
#include "encode.h"
#include "packet_internal.h"
#include "profiles.h"

Data Structures
struct	ApvEncContext
	The structure stores all the states associated with the instance of APV encoder. More...

Macros
#define	MAX_BS_BUF (128 * 1024 * 1024)

#define	MAX_NUM_FRMS (1)

#define	FRM_IDX (0)

#define	MAX_NUM_CC (OAPV_MAX_CC)

#define	OFFSET(x) offsetof(ApvEncContext, x)

#define	VE AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_PARAM

Functions
static int	apv_imgb_release (oapv_imgb_t *imgb)

static int	apv_imgb_addref (oapv_imgb_t *imgb)

static int	apv_imgb_getref (oapv_imgb_t *imgb)

static int	get_color_format (enum AVPixelFormat pix_fmt)
	Convert FFmpeg pixel format (AVPixelFormat) into APV pre-defined color format. More...

static oapv_imgb_t *	apv_imgb_create (AVCodecContext *avctx)

static int	get_conf (AVCodecContext avctx, oapve_cdesc_t cdsc)
	The function returns a pointer to the object of the oapve_cdesc_t type. More...

static av_cold int	liboapve_init (AVCodecContext *avctx)
	Initialize APV codec Create an encoder instance and allocate all the needed resources. More...

static int	liboapve_encode (AVCodecContext avctx, AVPacket avpkt, const AVFrame frame, int got_packet)
	Encode raw data frame into APV packet. More...

static av_cold int	liboapve_close (AVCodecContext *avctx)
	Destroy the encoder and release all the allocated resources. More...

Variables
static enum AVPixelFormat	supported_pixel_formats []

static const AVOption	liboapv_options []

static const AVClass	liboapve_class

static const FFCodecDefault	liboapve_defaults []

const FFCodec	ff_liboapv_encoder

Macro Definition Documentation

◆ MAX_BS_BUF

#define MAX_BS_BUF (128 * 1024 * 1024)

Definition at line 44 of file liboapvenc.c.

◆ MAX_NUM_FRMS

#define MAX_NUM_FRMS (1)

Definition at line 45 of file liboapvenc.c.

◆ FRM_IDX

#define FRM_IDX (0)

Definition at line 46 of file liboapvenc.c.

◆ MAX_NUM_CC

#define MAX_NUM_CC (OAPV_MAX_CC)

Definition at line 47 of file liboapvenc.c.

◆ OFFSET

#define OFFSET ( x ) offsetof(ApvEncContext, x)

Definition at line 429 of file liboapvenc.c.

◆ VE

#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 430 of file liboapvenc.c.

Function Documentation

◆ apv_imgb_release()

static int apv_imgb_release ( oapv_imgb_t * imgb )

static

Definition at line 72 of file liboapvenc.c.

Referenced by apv_imgb_create().

◆ apv_imgb_addref()

static int apv_imgb_addref ( oapv_imgb_t * imgb )

static

Definition at line 84 of file liboapvenc.c.

Referenced by apv_imgb_create().

◆ apv_imgb_getref()

static int apv_imgb_getref ( oapv_imgb_t * imgb )

static

Definition at line 90 of file liboapvenc.c.

Referenced by apv_imgb_create().

◆ get_color_format()

static int get_color_format ( enum AVPixelFormat pix_fmt )

inlinestatic

Convert FFmpeg pixel format (AVPixelFormat) into APV pre-defined color format.

Returns: APV pre-defined color format (

See also: oapv.h) on success, OAPV_CF_UNKNOWN on failure

Definition at line 100 of file liboapvenc.c.

Referenced by apv_imgb_create().

◆ apv_imgb_create()

static oapv_imgb_t* apv_imgb_create ( AVCodecContext * avctx )

static

Definition at line 115 of file liboapvenc.c.

Referenced by liboapve_init().

◆ get_conf()

static int get_conf	(	AVCodecContext *	avctx,
		oapve_cdesc_t *	cdsc
	)

static

The function returns a pointer to the object of the oapve_cdesc_t type.

oapve_cdesc_t contains all encoder parameters that should be initialized before the encoder is used.

The field values of the oapve_cdesc_t structure are populated based on:

the corresponding field values of the AvCodecConetxt structure,
the apv encoder specific option values,

The order of processing input data and populating the apve_cdsc structure 1) first, the fields of the AVCodecContext structure corresponding to the provided input options are processed, (i.e -pix_fmt yuv422p -s:v 1920x1080 -r 30 -profile:v 0) 2) then apve-specific options added as AVOption to the apv AVCodec implementation (i.e -preset 0)

Keep in mind that, there are options that can be set in different ways. In this case, please follow the above-mentioned order of processing. The most recent assignments overwrite the previous values.

Parameters

[in]	avctx	codec context (AVCodecContext)
[out]	cdsc	contains all APV encoder encoder parameters that should be initialized before the encoder is use

Returns: 0 on success, negative error code on failure

Definition at line 188 of file liboapvenc.c.

Referenced by liboapve_init().

◆ liboapve_init()

static av_cold int liboapve_init ( AVCodecContext * avctx )

static

Initialize APV codec Create an encoder instance and allocate all the needed resources.

Parameters

avctx codec context

Returns: 0 on success, negative error code on failure

Definition at line 271 of file liboapvenc.c.

◆ liboapve_encode()

static int liboapve_encode	(	AVCodecContext *	avctx,
		AVPacket *	avpkt,
		const AVFrame *	frame,
		int *	got_packet
	)

static

Encode raw data frame into APV packet.

Parameters

[in]	avctx	codec context
[out]	avpkt	output AVPacket containing encoded data
[in]	frame	AVFrame containing the raw data to be encoded
[out]	got_packet	encoder sets to 0 or 1 to indicate that a non-empty packet was returned in pkt

Returns: 0 on success, negative error code on failure

Definition at line 337 of file liboapvenc.c.

◆ liboapve_close()

static av_cold int liboapve_close ( AVCodecContext * avctx )

static

Destroy the encoder and release all the allocated resources.

Parameters

avctx codec context

Returns: 0 on success, negative error code on failure

Definition at line 400 of file liboapvenc.c.

Variable Documentation

◆ supported_pixel_formats

enum AVPixelFormat supported_pixel_formats[]

static

Initial value:

= {
    AV_PIX_FMT_YUV422P10,
    AV_PIX_FMT_NONE
}

Definition at line 432 of file liboapvenc.c.

◆ liboapv_options

const AVOption liboapv_options[]

static

Initial value:

= {
    { "preset", "Encoding preset for setting encoding speed (optimization level control)", OFFSET(preset_id), AV_OPT_TYPE_INT, { .i64 = OAPV_PRESET_DEFAULT }, OAPV_PRESET_FASTEST, OAPV_PRESET_PLACEBO, VE, .unit = "preset" },
    { "fastest", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = OAPV_PRESET_FASTEST }, INT_MIN, INT_MAX, VE, .unit = "preset" },
    { "fast",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = OAPV_PRESET_FAST },    INT_MIN, INT_MAX, VE, .unit = "preset" },
    { "medium",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = OAPV_PRESET_MEDIUM },  INT_MIN, INT_MAX, VE, .unit = "preset" },
    { "slow",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = OAPV_PRESET_SLOW },    INT_MIN, INT_MAX, VE, .unit = "preset" },
    { "placebo", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = OAPV_PRESET_PLACEBO }, INT_MIN, INT_MAX, VE, .unit = "preset" },
    { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = OAPV_PRESET_DEFAULT }, INT_MIN, INT_MAX, VE, .unit = "preset" },
 
    { "qp", "Quantization parameter value for CQP rate control mode", OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, 63, VE },
    { "oapv-params",  "Override the apv configuration using a :-separated list of key=value parameters", OFFSET(oapv_params), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
    { NULL }
}

Definition at line 437 of file liboapvenc.c.

◆ liboapve_class

const AVClass liboapve_class

static

Initial value:

= {
    .class_name = "liboapv",
    .item_name  = av_default_item_name,
    .option     = liboapv_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 451 of file liboapvenc.c.

◆ liboapve_defaults

const FFCodecDefault liboapve_defaults[]

static

Initial value:

= {
    { "b", "0" },       
    { NULL },
}

Definition at line 458 of file liboapvenc.c.

◆ ff_liboapv_encoder

const FFCodec ff_liboapv_encoder

Initial value:

= {
    .p.name             = "liboapv",
    .p.long_name        = NULL_IF_CONFIG_SMALL("liboapv APV"),
    .p.type             = AVMEDIA_TYPE_VIDEO,
    .p.id               = AV_CODEC_ID_APV,
    .init               = liboapve_init,
    FF_CODEC_ENCODE_CB(liboapve_encode),
    .close              = liboapve_close,
    .priv_data_size     = sizeof(ApvEncContext),
    .p.priv_class       = &liboapve_class,
    .defaults           = liboapve_defaults,
    .p.capabilities     = AV_CODEC_CAP_OTHER_THREADS | AV_CODEC_CAP_DR1,
    .p.wrapper_name     = "liboapv",
    .p.pix_fmts         = supported_pixel_formats,
    .p.profiles         = NULL_IF_CONFIG_SMALL(ff_apv_profiles),
    .caps_internal      = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_AUTO_THREADS | FF_CODEC_CAP_NOT_INIT_THREADSAFE,
}

Definition at line 463 of file liboapvenc.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ MAX_BS_BUF

◆ MAX_NUM_FRMS

◆ FRM_IDX

◆ MAX_NUM_CC

◆ OFFSET

◆ VE

Function Documentation

◆ apv_imgb_release()

◆ apv_imgb_addref()

◆ apv_imgb_getref()

◆ get_color_format()

◆ apv_imgb_create()

◆ get_conf()

◆ liboapve_init()

◆ liboapve_encode()

◆ liboapve_close()

Variable Documentation

◆ supported_pixel_formats

◆ liboapv_options

◆ liboapve_class

◆ liboapve_defaults

◆ ff_liboapv_encoder