libavcodec/libvpxenc.c File Reference

VP8 encoder support via libvpx. More...

#include <vpx/vpx_encoder.h>
#include <vpx/vp8cx.h>
#include "avcodec.h"
#include "libavutil/base64.h"
#include "libavutil/mathematics.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
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.
AVCodec	ff_libvpx_encoder

---

Detailed Description

VP8 encoder support via libvpx.

Definition in file libvpxenc.c.

---

Define Documentation

#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 171 of file libvpxenc.c.

Referenced by vp8_init().

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

Definition at line 144 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 330 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 89 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold void free_coded_frame

(

struct FrameListData *

cx_frame

)

[static]

Definition at line 154 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 160 of file libvpxenc.c.

Referenced by vp8_free().

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

Definition at line 78 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 378 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 348 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 456 of file libvpxenc.c.

static av_cold int vp8_free

(

AVCodecContext *

avctx

)

[static]

Definition at line 192 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold int vp8_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 204 of file libvpxenc.c.

---

Variable Documentation

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",
}

String mappings for enum vp8e_enc_control_id.

Definition at line 59 of file libvpxenc.c.

Referenced by codecctl_int().

AVCodec ff_libvpx_encoder

Initial value:

 {
    "libvpx",
    AVMEDIA_TYPE_VIDEO,
    CODEC_ID_VP8,
    sizeof(VP8Context),
    vp8_init,
    vp8_encode,
    vp8_free,
    NULL,
    CODEC_CAP_DELAY,
    .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
    .long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
}

Definition at line 499 of file libvpxenc.c.