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#include "common.h"
enum CodecID {
CODEC_ID_NONE,
CODEC_ID_MPEG1VIDEO,
CODEC_ID_H263,
CODEC_ID_RV10,
CODEC_ID_MP2,
CODEC_ID_AC3,
CODEC_ID_MJPEG,
};
enum CodecType {
CODEC_TYPE_VIDEO,
CODEC_TYPE_AUDIO,
};
typedef struct AVEncodeContext {
int bit_rate;
int rate; /* frames per sec or samples per sec */
/* video only */
int width, height;
int gop_size; /* 0 = intra only */
/* audio only */
int channels;
/* the following data should not be initialized */
int frame_size; /* in samples, initialized when calling 'init' */
int frame_number; /* audio or video frame number */
int key_frame; /* true if the previous compressed frame was
a key frame (intra, or seekable) */
struct AVEncoder *codec;
void *priv_data;
} AVEncodeContext;
typedef struct AVEncoder {
char *name;
int type;
int id;
int priv_data_size;
int (*init)(AVEncodeContext *);
int (*encode)(AVEncodeContext *, UINT8 *buf, int buf_size, void *data);
int (*close)(AVEncodeContext *);
struct AVEncoder *next;
} AVEncoder;
extern AVEncoder ac3_encoder;
extern AVEncoder mp2_encoder;
extern AVEncoder mpeg1video_encoder;
extern AVEncoder h263_encoder;
extern AVEncoder rv10_encoder;
extern AVEncoder mjpeg_encoder;
/* resample.c */
typedef struct {
/* fractional resampling */
UINT32 incr; /* fractional increment */
UINT32 frac;
int last_sample;
/* integer down sample */
int iratio; /* integer divison ratio */
int icount, isum;
int inv;
} ReSampleChannelContext;
typedef struct {
ReSampleChannelContext channel_ctx[2];
float ratio;
/* channel convert */
int input_channels, output_channels;
} ReSampleContext;
int audio_resample_init(ReSampleContext *s,
int output_channels, int input_channels,
int output_rate, int input_rate);
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
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