Libav
Functions | Variables
wmaenc.c File Reference
#include "libavutil/attributes.h"
#include "avcodec.h"
#include "internal.h"
#include "wma.h"
#include <assert.h>

Go to the source code of this file.

Functions

static av_cold int encode_init (AVCodecContext *avctx)
 
static void apply_window_and_mdct (AVCodecContext *avctx, const AVFrame *frame)
 
static void init_exp (WMACodecContext *s, int ch, const int *exp_param)
 
static void encode_exp_vlc (WMACodecContext *s, int ch, const int *exp_param)
 
static int encode_block (WMACodecContext *s, float(*src_coefs)[BLOCK_MAX_SIZE], int total_gain)
 
static int encode_frame (WMACodecContext *s, float(*src_coefs)[BLOCK_MAX_SIZE], uint8_t *buf, int buf_size, int total_gain)
 
static int encode_superframe (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
 

Variables

AVCodec ff_wmav1_encoder
 
AVCodec ff_wmav2_encoder
 

Function Documentation

§ encode_init()

static av_cold int encode_init ( AVCodecContext avctx)
static

Definition at line 31 of file wmaenc.c.

§ apply_window_and_mdct()

static void apply_window_and_mdct ( AVCodecContext avctx,
const AVFrame frame 
)
static

Definition at line 97 of file wmaenc.c.

Referenced by encode_superframe().

§ init_exp()

static void init_exp ( WMACodecContext s,
int  ch,
const int *  exp_param 
)
static

Definition at line 119 of file wmaenc.c.

Referenced by encode_block().

§ encode_exp_vlc()

static void encode_exp_vlc ( WMACodecContext s,
int  ch,
const int *  exp_param 
)
static

Definition at line 140 of file wmaenc.c.

Referenced by encode_block().

§ encode_block()

static int encode_block ( WMACodecContext s,
float(*)  src_coefs[BLOCK_MAX_SIZE],
int  total_gain 
)
static

Definition at line 166 of file wmaenc.c.

Referenced by encode_frame().

§ encode_frame()

static int encode_frame ( WMACodecContext s,
float(*)  src_coefs[BLOCK_MAX_SIZE],
uint8_t buf,
int  buf_size,
int  total_gain 
)
static

Definition at line 331 of file wmaenc.c.

Referenced by encode_superframe().

§ encode_superframe()

static int encode_superframe ( AVCodecContext avctx,
AVPacket avpkt,
const AVFrame frame,
int *  got_packet_ptr 
)
static

Definition at line 346 of file wmaenc.c.

Variable Documentation

§ ff_wmav1_encoder

AVCodec ff_wmav1_encoder
Initial value:
= {
.name = "wmav1",
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
.priv_data_size = sizeof(WMACodecContext),
.encode2 = encode_superframe,
}
float, planar
Definition: samplefmt.h:72
static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Definition: wmaenc.c:346
sample_fmts
Definition: avconv_filter.c:68
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:145
int ff_wma_end(AVCodecContext *avctx)
Definition: wma.c:369
AVSampleFormat
Audio Sample Formats.
Definition: samplefmt.h:61
AV_SAMPLE_FMT_NONE
Definition: avconv_filter.c:68
static void close(AVCodecParserContext *s)
Definition: h264_parser.c:490
static av_cold int encode_init(AVCodecContext *avctx)
Definition: wmaenc.c:31
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:499

Definition at line 418 of file wmaenc.c.

§ ff_wmav2_encoder

AVCodec ff_wmav2_encoder
Initial value:
= {
.name = "wmav2",
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
.priv_data_size = sizeof(WMACodecContext),
.encode2 = encode_superframe,
}
float, planar
Definition: samplefmt.h:72
static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Definition: wmaenc.c:346
sample_fmts
Definition: avconv_filter.c:68
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:145
int ff_wma_end(AVCodecContext *avctx)
Definition: wma.c:369
AVSampleFormat
Audio Sample Formats.
Definition: samplefmt.h:61
AV_SAMPLE_FMT_NONE
Definition: avconv_filter.c:68
static void close(AVCodecParserContext *s)
Definition: h264_parser.c:490
static av_cold int encode_init(AVCodecContext *avctx)
Definition: wmaenc.c:31
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:499

Definition at line 431 of file wmaenc.c.