libavcodec/wmaenc.c File Reference

#include "avcodec.h"
#include "internal.h"
#include "wma.h"
#include "libavutil/avassert.h"
#include <assert.h>

Go to the source code of this file.

Functions
static int	encode_init (AVCodecContext *avctx)
static void	apply_window_and_mdct (AVCodecContext *avctx, const signed short *audio, int len)
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

static void apply_window_and_mdct	(	AVCodecContext *	avctx,
		const signed short *	audio,
		int	len
	)			[static]

Definition at line 100 of file wmaenc.c.

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

Definition at line 168 of file wmaenc.c.

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

Definition at line 142 of file wmaenc.c.

Referenced by encode_block().

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 333 of file wmaenc.c.

static int encode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 31 of file wmaenc.c.

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

Definition at line 348 of file wmaenc.c.

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

Definition at line 121 of file wmaenc.c.

Referenced by encode_block().

---

Variable Documentation

AVCodec ff_wmav1_encoder

Initial value:

 {
    .name           = "wmav1",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_WMAV1,
    .priv_data_size = sizeof(WMACodecContext),
    .init           = encode_init,
    .encode2        = encode_superframe,
    .close          = ff_wma_end,
    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
                                                     AV_SAMPLE_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
}

Definition at line 418 of file wmaenc.c.

AVCodec ff_wmav2_encoder

Initial value:

 {
    .name           = "wmav2",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_WMAV2,
    .priv_data_size = sizeof(WMACodecContext),
    .init           = encode_init,
    .encode2        = encode_superframe,
    .close          = ff_wma_end,
    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
                                                     AV_SAMPLE_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
}

Definition at line 431 of file wmaenc.c.