libavcodec/libvpxenc.c File Reference

VP8 encoder support via libvpx. More...

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

Go to the source code of this file.

Data Structures

struct FrameListData

Portion of struct vpx_codec_cx_pkt from vpx_encoder.h. More...

struct VP8EncoderContext

Defines

#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

Typedefs

typedef struct VP8EncoderContext VP8Context

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, uint8_t *buf, int buf_size, AVFrame *coded_frame)

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

static int queue_frames (AVCodecContext *avctx, uint8_t *buf, int buf_size, AVFrame *coded_frame)

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

static int vp8_encode (AVCodecContext *avctx, uint8_t *buf, int buf_size, void *data)

Variables

static const char * 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.

Define Documentation

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

Definition at line 559 of file libvpxenc.c.

#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 560 of file libvpxenc.c.

#define VP8F_AUTO_ALT_REF 0x00000002

Enable automatic alternate reference frame generation.

Definition at line 66 of file libvpxenc.c.

Referenced by vp8_init().

#define VP8F_ERROR_RESILIENT 0x00000001

Enable measures appropriate for streaming over lossy links.

Definition at line 65 of file libvpxenc.c.

Referenced by vp8_init().

#define VPX_CODEC_DISABLE_COMPAT 1

Definition at line 27 of file libvpxenc.c.

#define VPX_DISABLE_CTRL_TYPECHECKS 1

Definition at line 26 of file libvpxenc.c.

Typedef Documentation

typedef struct VP8EncoderContext VP8Context

Function Documentation

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

Definition at line 193 of file libvpxenc.c.

Referenced by vp8_init().

static void coded_frame_add	(	void *	list,
		struct FrameListData *	cx_frame
	)			`[static]`

Definition at line 166 of file libvpxenc.c.

Referenced by queue_frames().

static void cx_pktcpy	(	struct FrameListData *	dst,
		const struct vpx_codec_cx_pkt *	src
	)			`[inline, static]`

Definition at line 389 of file libvpxenc.c.

Referenced by queue_frames().

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

Definition at line 111 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold void free_coded_frame ( struct FrameListData * cx_frame ) [static]

Definition at line 176 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 182 of file libvpxenc.c.

Referenced by vp8_free().

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

Definition at line 100 of file libvpxenc.c.

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

static int queue_frames	(	AVCodecContext *	avctx,
		uint8_t *	buf,
		int	buf_size,
		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 437 of file libvpxenc.c.

Referenced by vp8_encode().

static int storeframe	(	AVCodecContext *	avctx,
		struct FrameListData *	cx_frame,
		uint8_t *	buf,
		int	buf_size,
		AVFrame *	coded_frame
	)			`[static]`

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

Write buffer information from cx_frame to buf & buf_size. Timing/frame details to coded_frame.

Returns:: Frame size written to buf on success
AVERROR(EINVAL) on error

Definition at line 407 of file libvpxenc.c.

Referenced by queue_frames().

static int vp8_encode	(	AVCodecContext *	avctx,
		uint8_t *	buf,
		int	buf_size,
		void *	data
	)			`[static]`

Definition at line 516 of file libvpxenc.c.

static av_cold int vp8_free ( AVCodecContext * avctx ) [static]

Definition at line 214 of file libvpxenc.c.

static av_cold int vp8_init ( AVCodecContext * avctx ) [static]

Definition at line 226 of file libvpxenc.c.

Variable Documentation

const { ... } [static]

class_name = "libvpx encoder"

Definition at line 604 of file libvpxenc.c.

const char* 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",
}

String mappings for enum vp8e_enc_control_id.

Definition at line 80 of file libvpxenc.c.

Referenced by codecctl_int().

const AVCodecDefault defaults[] [static]

Initial value:

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

Definition at line 610 of file libvpxenc.c.

AVCodec ff_libvpx_encoder

Initial value:

 {
    .name           = "libvpx",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_VP8,
    .priv_data_size = sizeof(VP8Context),
    .init           = vp8_init,
    .encode         = vp8_encode,
    .close          = vp8_free,
    .capabilities   = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
    .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
    .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
    .priv_class = &class,
    .defaults       = defaults,
}

Definition at line 618 of file libvpxenc.c.

item_name = av_default_item_name

Definition at line 605 of file libvpxenc.c.

option = options

Definition at line 606 of file libvpxenc.c.

const AVOption options[] [static]

Definition at line 561 of file libvpxenc.c.

version = LIBAVUTIL_VERSION_INT

Definition at line 607 of file libvpxenc.c.


Data Structures
struct	FrameListData
	Portion of struct vpx_codec_cx_pkt from vpx_encoder.h. More...
struct	VP8EncoderContext
Defines
#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
Typedefs
typedef struct VP8EncoderContext	VP8Context
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, uint8_t buf, int buf_size, AVFrame coded_frame)
	Store coded frame information in format suitable for return from encode().
static int	queue_frames (AVCodecContext avctx, uint8_t buf, int buf_size, AVFrame *coded_frame)
	Queue multiple output frames from the encoder, returning the front-most.
static int	vp8_encode (AVCodecContext avctx, uint8_t buf, int buf_size, void *data)
Variables
static const char *	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