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

Macros

#define VPX_DISABLE_CTRL_TYPECHECKS   1
#define VPX_CODEC_DISABLE_COMPAT   1
#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.


Macro Definition Documentation

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

Definition at line 523 of file libvpxenc.c.

Definition at line 524 of file libvpxenc.c.

#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 181 of file libvpxenc.c.

Referenced by vp8_init().

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

Definition at line 154 of file libvpxenc.c.

Referenced by queue_frames().

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

Definition at line 354 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 99 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold void free_coded_frame ( struct FrameListData cx_frame)
static

Definition at line 164 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 170 of file libvpxenc.c.

Referenced by vp8_free().

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

Definition at line 88 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 402 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 372 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 480 of file libvpxenc.c.

static av_cold int vp8_free ( AVCodecContext avctx)
static

Definition at line 202 of file libvpxenc.c.

Referenced by vp8_init().

static av_cold int vp8_init ( AVCodecContext avctx)
static

Definition at line 214 of file libvpxenc.c.


Variable Documentation

const { ... }
class_name = "libvpx encoder"

Definition at line 553 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",
}

String mappings for enum vp8e_enc_control_id.

Definition at line 69 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 559 of file libvpxenc.c.

AVCodec ff_libvpx_encoder
Initial value:
{
.name = "libvpx",
.id = CODEC_ID_VP8,
.priv_data_size = sizeof(VP8Context),
.encode = vp8_encode,
.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 567 of file libvpxenc.c.

item_name = av_default_item_name

Definition at line 554 of file libvpxenc.c.

option = options

Definition at line 555 of file libvpxenc.c.

const AVOption options[]
static
Initial value:
{
{ "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE},
{ "auto-alt-ref", "Enable use of alternate reference "
"frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {-1}, -1, 1, VE},
{ "lag-in-frames", "Number of frames to look ahead for "
"alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
{ "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
{ "arnr-strength", "altref noise reduction filter strength", OFFSET(arnr_strength), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE},
{ "arnr-type", "altref noise reduction filter type", OFFSET(arnr_type), AV_OPT_TYPE_INT, {-1}, -1, INT_MAX, VE, "arnr_type"},
{ "backward", NULL, 0, AV_OPT_TYPE_CONST, {1}, 0, 0, VE, "arnr_type" },
{ "forward", NULL, 0, AV_OPT_TYPE_CONST, {2}, 0, 0, VE, "arnr_type" },
{ "centered", NULL, 0, AV_OPT_TYPE_CONST, {3}, 0, 0, VE, "arnr_type" },
{ "deadline", "Time to spend encoding, in microseconds.", OFFSET(deadline), AV_OPT_TYPE_INT, {VPX_DL_GOOD_QUALITY}, INT_MIN, INT_MAX, VE, "quality"},
{ "best", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_BEST_QUALITY}, 0, 0, VE, "quality"},
{ "good", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_GOOD_QUALITY}, 0, 0, VE, "quality"},
{ "realtime", NULL, 0, AV_OPT_TYPE_CONST, {VPX_DL_REALTIME}, 0, 0, VE, "quality"},
{ "error-resilient", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, VE, "er"},
{ NULL }
}

Definition at line 525 of file libvpxenc.c.

Definition at line 556 of file libvpxenc.c.