libmp3lame.c File Reference

Go to the source code of this file.

Classes
struct	Mp3AudioContext
Functions
static int	MP3lame_encode_init (AVCodecContext *avctx)
static int	mp3len (void *data, int *samplesPerFrame, int *sampleRate)
static int	MP3lame_encode_frame (AVCodecContext *avctx, unsigned char *frame, int buf_size, void *data)
static int	MP3lame_encode_close (AVCodecContext *avctx)
Variables
static const int	sSampleRates [3]
static const int	sBitRates [2][3][15]
static const int	sSamplesPerFrame [2][3]
static const int	sBitsPerSlot [3]
AVCodec	libmp3lame_encoder

---

Function Documentation

static int MP3lame_encode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 39 of file libmp3lame.c.

static int mp3len	(	void *	data,
		int *	samplesPerFrame,
		int *	sampleRate
	)			[static]

Definition at line 107 of file libmp3lame.c.

Referenced by MP3lame_encode_frame().

static int MP3lame_encode_frame	(	AVCodecContext *	avctx,
		unsigned char *	frame,
		int	buf_size,
		void *	data
	)			[static]

Definition at line 137 of file libmp3lame.c.

static int MP3lame_encode_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 200 of file libmp3lame.c.

---

Variable Documentation

const int sSampleRates[3] [static]

Initial value:

 {
    44100, 48000,  32000
}

Definition at line 80 of file libmp3lame.c.

Referenced by mp3len().

const int sBitRates[2][3][15] [static]

Initial value:

 {
    {   {  0, 32, 64, 96,128,160,192,224,256,288,320,352,384,416,448},
        {  0, 32, 48, 56, 64, 80, 96,112,128,160,192,224,256,320,384},
        {  0, 32, 40, 48, 56, 64, 80, 96,112,128,160,192,224,256,320}
    },
    {   {  0, 32, 48, 56, 64, 80, 96,112,128,144,160,176,192,224,256},
        {  0,  8, 16, 24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160},
        {  0,  8, 16, 24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160}
    },
}

Definition at line 84 of file libmp3lame.c.

Referenced by mp3len().

const int sSamplesPerFrame[2][3] [static]

Initial value:

{
    {  384,     1152,    1152 },
    {  384,     1152,     576 }
}

Definition at line 95 of file libmp3lame.c.

Referenced by mp3len().

const int sBitsPerSlot[3] [static]

Initial value:

 {
    32,
    8,
    8
}

Definition at line 101 of file libmp3lame.c.

Referenced by mp3len().

AVCodec libmp3lame_encoder

Initial value:

 {
    "libmp3lame",
    CODEC_TYPE_AUDIO,
    CODEC_ID_MP3,
    sizeof(Mp3AudioContext),
    MP3lame_encode_init,
    MP3lame_encode_frame,
    MP3lame_encode_close,
    .capabilities= CODEC_CAP_DELAY,
}

Definition at line 211 of file libmp3lame.c.