mirror of https://git.ffmpeg.org/ffmpeg.git
190 lines
5.5 KiB
C
190 lines
5.5 KiB
C
#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,
|
|
CODEC_ID_OPENDIVX,
|
|
CODEC_ID_PCM,
|
|
CODEC_ID_RAWVIDEO,
|
|
CODEC_ID_MSMPEG4,
|
|
CODEC_ID_H263P,
|
|
CODEC_ID_H263I,
|
|
};
|
|
|
|
enum CodecType {
|
|
CODEC_TYPE_VIDEO,
|
|
CODEC_TYPE_AUDIO,
|
|
};
|
|
|
|
enum PixelFormat {
|
|
PIX_FMT_YUV420P,
|
|
PIX_FMT_YUV422,
|
|
PIX_FMT_RGB24,
|
|
PIX_FMT_BGR24,
|
|
PIX_FMT_YUV422P,
|
|
PIX_FMT_YUV444P,
|
|
};
|
|
|
|
/* in bytes */
|
|
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
|
|
|
|
/* motion estimation type */
|
|
extern int motion_estimation_method;
|
|
#define ME_ZERO 0
|
|
#define ME_FULL 1
|
|
#define ME_LOG 2
|
|
#define ME_PHODS 3
|
|
|
|
/* encoding support */
|
|
|
|
#define CODEC_FLAG_HQ 0x0001 /* high quality (non real time) encoding */
|
|
#define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
|
|
|
|
#define FRAME_RATE_BASE 10000
|
|
|
|
typedef struct AVCodecContext {
|
|
int bit_rate;
|
|
int flags;
|
|
int sub_id; /* some codecs needs additionnal format info. It is
|
|
stored there */
|
|
/* video only */
|
|
int frame_rate; /* frames per sec multiplied by FRAME_RATE_BASE */
|
|
int width, height;
|
|
int gop_size; /* 0 = intra only */
|
|
int pix_fmt; /* pixel format, see PIX_FMT_xxx */
|
|
/* audio only */
|
|
int sample_rate; /* samples per sec */
|
|
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) */
|
|
int quality; /* quality of the previous encoded frame
|
|
(between 1 (good) and 31 (bad)) */
|
|
struct AVCodec *codec;
|
|
void *priv_data;
|
|
|
|
/* the following fields are ignored */
|
|
char codec_name[32];
|
|
int codec_type; /* see CODEC_TYPE_xxx */
|
|
int codec_id; /* see CODEC_ID_xxx */
|
|
unsigned int codec_tag; /* codec tag, only used if unknown codec */
|
|
} AVCodecContext;
|
|
|
|
typedef struct AVCodec {
|
|
char *name;
|
|
int type;
|
|
int id;
|
|
int priv_data_size;
|
|
int (*init)(AVCodecContext *);
|
|
int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
|
|
int (*close)(AVCodecContext *);
|
|
int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
|
|
UINT8 *buf, int buf_size);
|
|
struct AVCodec *next;
|
|
} AVCodec;
|
|
|
|
/* three components are given, that's all */
|
|
typedef struct AVPicture {
|
|
UINT8 *data[3];
|
|
int linesize[3];
|
|
} AVPicture;
|
|
|
|
extern AVCodec ac3_encoder;
|
|
extern AVCodec mp2_encoder;
|
|
extern AVCodec mpeg1video_encoder;
|
|
extern AVCodec h263_encoder;
|
|
extern AVCodec h263p_encoder;
|
|
extern AVCodec rv10_encoder;
|
|
extern AVCodec mjpeg_encoder;
|
|
extern AVCodec opendivx_encoder;
|
|
extern AVCodec msmpeg4_encoder;
|
|
|
|
extern AVCodec h263_decoder;
|
|
extern AVCodec opendivx_decoder;
|
|
extern AVCodec msmpeg4_decoder;
|
|
extern AVCodec mpeg_decoder;
|
|
extern AVCodec h263i_decoder;
|
|
extern AVCodec rv10_decoder;
|
|
extern AVCodec mjpeg_decoder;
|
|
|
|
/* dummy raw codecs */
|
|
extern AVCodec pcm_codec;
|
|
extern AVCodec rawvideo_codec;
|
|
|
|
/* the following codecs use external GPL libs */
|
|
extern AVCodec mp3_decoder;
|
|
extern AVCodec ac3_decoder;
|
|
|
|
/* resample.c */
|
|
|
|
struct ReSampleContext;
|
|
|
|
typedef struct ReSampleContext ReSampleContext;
|
|
|
|
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
|
|
int output_rate, int input_rate);
|
|
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
|
|
void audio_resample_close(ReSampleContext *s);
|
|
|
|
/* YUV420 format is assumed ! */
|
|
|
|
struct ImgReSampleContext;
|
|
|
|
typedef struct ImgReSampleContext ImgReSampleContext;
|
|
|
|
ImgReSampleContext *img_resample_init(int output_width, int output_height,
|
|
int input_width, int input_height);
|
|
void img_resample(ImgReSampleContext *s,
|
|
AVPicture *output, AVPicture *input);
|
|
|
|
void img_resample_close(ImgReSampleContext *s);
|
|
|
|
void avpicture_fill(AVPicture *picture, UINT8 *ptr,
|
|
int pix_fmt, int width, int height);
|
|
int avpicture_get_size(int pix_fmt, int width, int height);
|
|
|
|
/* convert among pixel formats */
|
|
int img_convert(AVPicture *dst, int dst_pix_fmt,
|
|
AVPicture *src, int pix_fmt,
|
|
int width, int height);
|
|
|
|
/* deinterlace a picture */
|
|
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
|
|
int pix_fmt, int width, int height);
|
|
|
|
/* external high level API */
|
|
|
|
extern AVCodec *first_avcodec;
|
|
|
|
void avcodec_init(void);
|
|
|
|
void register_avcodec(AVCodec *format);
|
|
AVCodec *avcodec_find_encoder(enum CodecID id);
|
|
AVCodec *avcodec_find_decoder(enum CodecID id);
|
|
AVCodec *avcodec_find_decoder_by_name(const char *name);
|
|
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
|
|
|
|
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
|
|
int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
|
|
int *frame_size_ptr,
|
|
UINT8 *buf, int buf_size);
|
|
int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
|
|
int *got_picture_ptr,
|
|
UINT8 *buf, int buf_size);
|
|
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
|
|
const short *samples);
|
|
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
|
|
const AVPicture *pict);
|
|
|
|
int avcodec_close(AVCodecContext *avctx);
|
|
|
|
void avcodec_register_all(void);
|