VP8 encoder support via libvpx. More...

#include <vpx/vpx_encoder.h>
#include <vpx/vp8cx.h>
#include "avcodec.h"
#include "internal.h"
#include "libavutil/avassert.h"
#include "libavutil/base64.h"
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"

Data Structures
struct	FrameListData
	Portion of struct vpx_codec_cx_pkt from vpx_encoder.h. More...

struct	VP8Context

Macros
#define	VPX_DISABLE_CTRL_TYPECHECKS 1

#define	VPX_CODEC_DISABLE_COMPAT 1

#define	VP8F_ERROR_RESILIENT 0x00000001
	Enable measures appropriate for streaming over lossy links.

#define	VP8F_AUTO_ALT_REF 0x00000002
	Enable automatic alternate reference frame generation.

#define	OFFSET(x) offsetof(VP8Context, x)

#define	VE AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_PARAM

Functions
static av_cold void	log_encoder_error (AVCodecContext avctx, const char desc)

static av_cold void	dump_enc_cfg (AVCodecContext avctx, const struct vpx_codec_enc_cfg cfg)

static void	coded_frame_add (void list, struct FrameListData cx_frame)

static av_cold void	free_coded_frame (struct FrameListData *cx_frame)

static av_cold void	free_frame_list (struct FrameListData *list)

static av_cold int	codecctl_int (AVCodecContext *avctx, enum vp8e_enc_control_id id, int val)

static av_cold int	vp8_free (AVCodecContext *avctx)

static av_cold int	vp8_init (AVCodecContext *avctx)

static void	cx_pktcpy (struct FrameListData dst, const struct vpx_codec_cx_pkt src)

static int	storeframe (AVCodecContext avctx, struct FrameListData cx_frame, AVPacket pkt, AVFrame coded_frame)
	Store coded frame information in format suitable for return from encode2().

static int	queue_frames (AVCodecContext avctx, AVPacket pkt_out, AVFrame *coded_frame)
	Queue multiple output frames from the encoder, returning the front-most.

static int	vp8_encode (AVCodecContext avctx, AVPacket pkt, const AVFrame frame, int got_packet)

Variables
static const char *const	ctlidstr []
	String mappings for enum vp8e_enc_control_id.

static const AVOption	options []

class {
class_name = "libvpx encoder"

item_name = av_default_item_name

option = options

version = LIBAVUTIL_VERSION_INT

};

static const AVCodecDefault	defaults []

AVCodec	ff_libvpx_encoder

Detailed Description

VP8 encoder support via libvpx.

Definition in file libvpxenc.c.

Macro Definition Documentation

#define VPX_DISABLE_CTRL_TYPECHECKS 1

Definition at line 26 of file libvpxenc.c.

#define VPX_CODEC_DISABLE_COMPAT 1

Definition at line 27 of file libvpxenc.c.

#define VP8F_ERROR_RESILIENT 0x00000001

Enable measures appropriate for streaming over lossy links.

Definition at line 67 of file libvpxenc.c.

Referenced by vp8_init().

#define VP8F_AUTO_ALT_REF 0x00000002

Enable automatic alternate reference frame generation.

Definition at line 68 of file libvpxenc.c.

Referenced by vp8_init().

#define OFFSET ( x ) offsetof(VP8Context, x)

Definition at line 571 of file libvpxenc.c.

#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 572 of file libvpxenc.c.

Function Documentation

static av_cold void log_encoder_error	(	AVCodecContext *	avctx,
		const char *	desc
	)

static

Definition at line 104 of file libvpxenc.c.

Referenced by codecctl_int(), vp8_encode(), and vp8_init().

static av_cold void dump_enc_cfg	(	AVCodecContext *	avctx,
		const struct vpx_codec_enc_cfg *	cfg
	)

static

Definition at line 115 of file libvpxenc.c.

Referenced by vp8_init().

static void coded_frame_add	(	void *	list,
		struct FrameListData *	cx_frame
	)

static

Definition at line 170 of file libvpxenc.c.

Referenced by queue_frames().

static av_cold void free_coded_frame ( struct FrameListData * cx_frame )

static

Definition at line 180 of file libvpxenc.c.

Referenced by free_frame_list(), and queue_frames().

static av_cold void free_frame_list ( struct FrameListData * list )

static

Definition at line 186 of file libvpxenc.c.

Referenced by vp8_free().

static av_cold int codecctl_int	(	AVCodecContext *	avctx,
		enum vp8e_enc_control_id	id,
		int	val
	)

static

Definition at line 197 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold int vp8_free ( AVCodecContext * avctx )

static

Definition at line 218 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold int vp8_init ( AVCodecContext * avctx )

static

Definition at line 230 of file libvpxenc.c.

static void cx_pktcpy	(	struct FrameListData *	dst,
		const struct vpx_codec_cx_pkt *	src
	)

inlinestatic

Definition at line 399 of file libvpxenc.c.

Referenced by queue_frames().

static int storeframe	(	AVCodecContext *	avctx,
		struct FrameListData *	cx_frame,
		AVPacket *	pkt,
		AVFrame *	coded_frame
	)

static

Store coded frame information in format suitable for return from encode2().

Write information from cx_frame to pkt

Returns: packet data size on success; a negative AVERROR on error

Definition at line 416 of file libvpxenc.c.

Referenced by queue_frames().

static int queue_frames	(	AVCodecContext *	avctx,
		AVPacket *	pkt_out,
		AVFrame *	coded_frame
	)

static

Queue multiple output frames from the encoder, returning the front-most.

In cases where vpx_codec_get_cx_data() returns more than 1 frame append the frame queue. Return the head frame if available.

Returns: Stored frame size; AVERROR(EINVAL) on output size error; AVERROR(ENOMEM) on coded frame queue data allocation error

Definition at line 445 of file libvpxenc.c.

Referenced by vp8_encode().

static int vp8_encode	(	AVCodecContext *	avctx,
		AVPacket *	pkt,
		const AVFrame *	frame,
		int *	got_packet
	)

static

Definition at line 524 of file libvpxenc.c.

Variable Documentation

const char* const ctlidstr[]

static

Initial value:

= {
    [VP8E_UPD_ENTROPY]           = "VP8E_UPD_ENTROPY",
    [VP8E_UPD_REFERENCE]         = "VP8E_UPD_REFERENCE",
    [VP8E_USE_REFERENCE]         = "VP8E_USE_REFERENCE",
    [VP8E_SET_ROI_MAP]           = "VP8E_SET_ROI_MAP",
    [VP8E_SET_ACTIVEMAP]         = "VP8E_SET_ACTIVEMAP",
    [VP8E_SET_SCALEMODE]         = "VP8E_SET_SCALEMODE",
    [VP8E_SET_CPUUSED]           = "VP8E_SET_CPUUSED",
    [VP8E_SET_ENABLEAUTOALTREF]  = "VP8E_SET_ENABLEAUTOALTREF",
    [VP8E_SET_NOISE_SENSITIVITY] = "VP8E_SET_NOISE_SENSITIVITY",
    [VP8E_SET_SHARPNESS]         = "VP8E_SET_SHARPNESS",
    [VP8E_SET_STATIC_THRESHOLD]  = "VP8E_SET_STATIC_THRESHOLD",
    [VP8E_SET_TOKEN_PARTITIONS]  = "VP8E_SET_TOKEN_PARTITIONS",
    [VP8E_GET_LAST_QUANTIZER]    = "VP8E_GET_LAST_QUANTIZER",
    [VP8E_SET_ARNR_MAXFRAMES]    = "VP8E_SET_ARNR_MAXFRAMES",
    [VP8E_SET_ARNR_STRENGTH]     = "VP8E_SET_ARNR_STRENGTH",
    [VP8E_SET_ARNR_TYPE]         = "VP8E_SET_ARNR_TYPE",
    [VP8E_SET_CQ_LEVEL]          = "VP8E_SET_CQ_LEVEL",
    [VP8E_SET_MAX_INTRA_BITRATE_PCT] = "VP8E_SET_MAX_INTRA_BITRATE_PCT",
}

String mappings for enum vp8e_enc_control_id.

Definition at line 83 of file libvpxenc.c.

Referenced by codecctl_int().

const AVOption options[]

static

Definition at line 573 of file libvpxenc.c.

class_name = "libvpx encoder"

Definition at line 612 of file libvpxenc.c.

item_name = av_default_item_name

Definition at line 613 of file libvpxenc.c.

option = options

Definition at line 614 of file libvpxenc.c.

version = LIBAVUTIL_VERSION_INT

Definition at line 615 of file libvpxenc.c.

const { ... }

const AVCodecDefault defaults[]

static

Initial value:

= {
    { "qmin",             "-1" },
    { "qmax",             "-1" },
    { "g",                "-1" },
    { "keyint_min",       "-1" },
    { NULL },
}

Definition at line 618 of file libvpxenc.c.

AVCodec ff_libvpx_encoder

Initial value:

= {
    .name           = "libvpx",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_VP8,
    .priv_data_size = sizeof(VP8Context),
    .init           = vp8_init,
    .encode2        = vp8_encode,
    .close          = vp8_free,
    .capabilities   = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("libvpx VP8"),
    .priv_class     = &class,
    .defaults       = defaults,
}

Definition at line 626 of file libvpxenc.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation