libopenh264enc.c File Reference

#include <wels/codec_api.h>
#include <wels/codec_ver.h>
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "encode.h"
#include "internal.h"
#include "libopenh264.h"

Go to the source code of this file.

Data Structures
struct	SVCContext

Macros
#define	SM_SIZELIMITED_SLICE   SM_DYN_SLICE
#define	TARGET_BITRATE_DEFAULT   2*1000*1000
#define	OFFSET(x)   offsetof(SVCContext, x)
#define	VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
#define	DEPRECATED   AV_OPT_FLAG_DEPRECATED
#define	PROFILE(name, value)   name, NULL, 0, AV_OPT_TYPE_CONST, { .i64 = value }, 0, 0, VE, .unit = "profile"

Functions
static av_cold int	svc_encode_close (AVCodecContext *avctx)
static av_cold int	svc_encode_init (AVCodecContext *avctx)
static int	svc_encode_frame (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet)

Variables
static const AVOption	options []
class {
class_name = "libopenh264enc"
item_name = av_default_item_name
option = options
version = LIBAVUTIL_VERSION_INT
};
static const FFCodecDefault	svc_enc_defaults []
const FFCodec	ff_libopenh264_encoder

Macro Definition Documentation

SM_SIZELIMITED_SLICE

#define SM_SIZELIMITED_SLICE   SM_DYN_SLICE

Definition at line 39 of file libopenh264enc.c.

TARGET_BITRATE_DEFAULT

#define TARGET_BITRATE_DEFAULT   2*1000*1000

Definition at line 42 of file libopenh264enc.c.

OFFSET

#define OFFSET

(

x

)

offsetof(SVCContext, x)

Definition at line 59 of file libopenh264enc.c.

VE

#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 60 of file libopenh264enc.c.

DEPRECATED

#define DEPRECATED   AV_OPT_FLAG_DEPRECATED

Definition at line 61 of file libopenh264enc.c.

PROFILE

#define PROFILE	(		name,
			value
	)		name, NULL, 0, AV_OPT_TYPE_CONST, { .i64 = value }, 0, 0, VE, .unit = "profile"

Function Documentation

svc_encode_close()

static av_cold int svc_encode_close ( AVCodecContext *  avctx )

static

Definition at line 98 of file libopenh264enc.c.

svc_encode_init()

static av_cold int svc_encode_init ( AVCodecContext *  avctx )

static

Definition at line 109 of file libopenh264enc.c.

svc_encode_frame()

static int svc_encode_frame ( AVCodecContext *  avctx, AVPacket *  avpkt, const AVFrame *  frame, int *  got_packet  )

static

Definition at line 361 of file libopenh264enc.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "loopfilter", "enable loop filter", OFFSET(loopfilter), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
    { "profile", "set profile restrictions", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = AV_PROFILE_UNKNOWN }, AV_PROFILE_UNKNOWN, 0xffff, VE, .unit = "profile" },
#define PROFILE(name, value)  
        { PROFILE("constrained_baseline", AV_PROFILE_H264_CONSTRAINED_BASELINE) },
        { PROFILE("main",                 AV_PROFILE_H264_MAIN) },
        { PROFILE("high",                 AV_PROFILE_H264_HIGH) },
 
    { "max_nal_size", "set maximum NAL size in bytes", OFFSET(max_nal_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
    { "allow_skip_frames", "allow skipping frames to hit the target bitrate", OFFSET(skip_frames), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
    { "coder", "Coder type",  OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, .unit = "coder" },
        { "default",          NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, .unit = "coder" },
        { "cavlc",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, .unit = "coder" },
        { "cabac",            NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, .unit = "coder" },
        { "vlc",              NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 },  INT_MIN, INT_MAX, VE, .unit = "coder" },
        { "ac",               NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 },  INT_MIN, INT_MAX, VE, .unit = "coder" },
 
    { "rc_mode", "Select rate control mode", OFFSET(rc_mode), AV_OPT_TYPE_INT, { .i64 = RC_QUALITY_MODE }, RC_OFF_MODE, RC_TIMESTAMP_MODE, VE, .unit = "rc_mode" },
        { "off",       "bit rate control off",                                                 0, AV_OPT_TYPE_CONST, { .i64 = RC_OFF_MODE },         0, 0, VE, .unit = "rc_mode" },
        { "quality",   "quality mode",                                                         0, AV_OPT_TYPE_CONST, { .i64 = RC_QUALITY_MODE },     0, 0, VE, .unit = "rc_mode" },
        { "bitrate",   "bitrate mode",                                                         0, AV_OPT_TYPE_CONST, { .i64 = RC_BITRATE_MODE },     0, 0, VE, .unit = "rc_mode" },
        { "buffer",    "using buffer status to adjust the video quality (no bitrate control)", 0, AV_OPT_TYPE_CONST, { .i64 = RC_BUFFERBASED_MODE }, 0, 0, VE, .unit = "rc_mode" },
 
 
 
 
    { NULL }
}

Definition at line 62 of file libopenh264enc.c.

class_name

class_name = "libopenh264enc"

private

Definition at line 92 of file libopenh264enc.c.

item_name

item_name = av_default_item_name

private

Definition at line 93 of file libopenh264enc.c.

option

option = options

private

Definition at line 94 of file libopenh264enc.c.

version

version = LIBAVUTIL_VERSION_INT

private

Definition at line 95 of file libopenh264enc.c.

@106

const { ... }

svc_enc_defaults

const FFCodecDefault svc_enc_defaults[]

static

Initial value:

= {
    { "b",         "0"     },
    { "g",         "-1"    },
    { "qmin",      "-1"    },
    { "qmax",      "-1"    },
    { NULL },
}

Definition at line 424 of file libopenh264enc.c.

ff_libopenh264_encoder

const FFCodec ff_libopenh264_encoder

Initial value:

= {
    .p.name         = "libopenh264",
    CODEC_LONG_NAME("OpenH264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_H264,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_OTHER_THREADS |
                      AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
    .priv_data_size = sizeof(SVCContext),
    .init           = svc_encode_init,
    FF_CODEC_ENCODE_CB(svc_encode_frame),
    .close          = svc_encode_close,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP |
                      FF_CODEC_CAP_AUTO_THREADS,
    .p.pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P,
                                                    AV_PIX_FMT_YUVJ420P,
                                                    AV_PIX_FMT_NONE },
    .defaults       = svc_enc_defaults,
    .p.priv_class   = &class,
    .p.wrapper_name = "libopenh264",
}

Definition at line 432 of file libopenh264enc.c.