ttaenc.c File Reference

#include "ttadata.h"
#include "avcodec.h"
#include "put_bits.h"
#include "internal.h"
#include "libavutil/crc.h"

Go to the source code of this file.

Data Structures
struct	TTAEncContext

Macros
#define	BITSTREAM_WRITER_LE
#define	PRED(x, k)   (int32_t)((((uint64_t)x << k) - x) >> k)

Functions
static av_cold int	tta_encode_init (AVCodecContext *avctx)
static void	ttafilter_process (TTAFilter *c, int32_t *in)
static int32_t	get_sample (const AVFrame *frame, int sample, enum AVSampleFormat format)
static int	tta_encode_frame (AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
static av_cold int	tta_encode_close (AVCodecContext *avctx)

Variables
AVCodec	ff_tta_encoder

Macro Definition Documentation

#define BITSTREAM_WRITER_LE

Definition at line 21 of file ttaenc.c.

#define PRED	(		x,
			k
	)		(int32_t)((((uint64_t)x << k) - x) >> k)

Function Documentation

static av_cold int tta_encode_init ( AVCodecContext *  avctx )

static

Definition at line 34 of file ttaenc.c.

static void ttafilter_process ( TTAFilter *  c, int32_t *  in  )

inlinestatic

Definition at line 63 of file ttaenc.c.

Referenced by tta_encode_frame().

static int32_t get_sample ( const AVFrame *  frame, int  sample, enum AVSampleFormat  format  )

static

Definition at line 94 of file ttaenc.c.

Referenced by tta_encode_frame().

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

static

Definition at line 112 of file ttaenc.c.

static av_cold int tta_encode_close ( AVCodecContext *  avctx )

static

Definition at line 211 of file ttaenc.c.

Variable Documentation

AVCodec ff_tta_encoder

Initial value:

= {
    .name           = "tta",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = AV_CODEC_ID_TTA,
    .priv_data_size = sizeof(TTAEncContext),
    .init           = tta_encode_init,
    .close          = tta_encode_close,
    .encode2        = tta_encode_frame,
    .capabilities   = CODEC_CAP_SMALL_LAST_FRAME | CODEC_CAP_LOSSLESS,
    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_U8,
                                                     AV_SAMPLE_FMT_S16,
                                                     AV_SAMPLE_FMT_S32,
                                                     AV_SAMPLE_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("TTA (True Audio)"),
}

Definition at line 218 of file ttaenc.c.