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 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 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.

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 
) [inline, static]

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 { ... } [static]
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.

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 567 of file libvpxenc.c.

Definition at line 554 of file libvpxenc.c.

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.