avcodec.h

mpeg4 video codec mpeg4 video codec

    uint32_t num_rects;
    AVSubtitleRect *rects;
} AVSubtitle;

extern AVCodec ac3_encoder;
extern AVCodec mp2_encoder;
extern AVCodec mp3lame_encoder;
extern AVCodec oggvorbis_encoder;
extern AVCodec oggtheora_encoder;
extern AVCodec faac_encoder;
extern AVCodec xvid_encoder;
extern AVCodec mpeg1video_encoder;
extern AVCodec mpeg2video_encoder;
extern AVCodec h261_encoder;
extern AVCodec h263_encoder;
extern AVCodec h263p_encoder;
extern AVCodec flv_encoder;
extern AVCodec rv10_encoder;
extern AVCodec rv20_encoder;
extern AVCodec dvvideo_encoder;
extern AVCodec mjpeg_encoder;
extern AVCodec ljpeg_encoder;
extern AVCodec jpegls_encoder;
extern AVCodec png_encoder;
extern AVCodec ppm_encoder;
extern AVCodec pgm_encoder;
extern AVCodec pgmyuv_encoder;
extern AVCodec pbm_encoder;
extern AVCodec pam_encoder;
extern AVCodec mpeg4_encoder;
extern AVCodec msmpeg4v1_encoder;
extern AVCodec msmpeg4v2_encoder;
extern AVCodec msmpeg4v3_encoder;
extern AVCodec wmv1_encoder;
extern AVCodec wmv2_encoder;
extern AVCodec huffyuv_encoder;
extern AVCodec ffvhuff_encoder;
extern AVCodec h264_encoder;
extern AVCodec asv1_encoder;
extern AVCodec asv2_encoder;
extern AVCodec vcr1_encoder;
extern AVCodec ffv1_encoder;
extern AVCodec snow_encoder;
extern AVCodec mdec_encoder;
extern AVCodec zlib_encoder;
extern AVCodec sonic_encoder;
extern AVCodec sonic_ls_encoder;
extern AVCodec svq1_encoder;
extern AVCodec x264_encoder;

extern AVCodec h263_decoder;
extern AVCodec h261_decoder;
extern AVCodec mpeg4_decoder;
extern AVCodec msmpeg4v1_decoder;
extern AVCodec msmpeg4v2_decoder;
extern AVCodec msmpeg4v3_decoder;
extern AVCodec wmv1_decoder;
extern AVCodec wmv2_decoder;
extern AVCodec vc9_decoder;
extern AVCodec wmv3_decoder;
extern AVCodec mpeg1video_decoder;
extern AVCodec mpeg2video_decoder;
extern AVCodec mpegvideo_decoder;
extern AVCodec mpeg_xvmc_decoder;
extern AVCodec h263i_decoder;
extern AVCodec flv_decoder;
extern AVCodec rv10_decoder;
extern AVCodec rv20_decoder;
extern AVCodec rv30_decoder;
extern AVCodec rv40_decoder;
extern AVCodec svq1_decoder;
extern AVCodec svq3_decoder;
extern AVCodec dvvideo_decoder;
extern AVCodec wmav1_decoder;
extern AVCodec wmav2_decoder;
extern AVCodec mjpeg_decoder;
extern AVCodec mjpegb_decoder;
extern AVCodec sp5x_decoder;
extern AVCodec png_decoder;
extern AVCodec mp2_decoder;
extern AVCodec mp3_decoder;
extern AVCodec mp3adu_decoder;
extern AVCodec mp3on4_decoder;
extern AVCodec qdm2_decoder;
extern AVCodec cook_decoder;
extern AVCodec truespeech_decoder;
extern AVCodec mace3_decoder;
extern AVCodec mace6_decoder;
extern AVCodec huffyuv_decoder;
extern AVCodec ffvhuff_decoder;
extern AVCodec oggvorbis_decoder;
extern AVCodec oggtheora_decoder;
extern AVCodec cyuv_decoder;
extern AVCodec h264_decoder;
extern AVCodec indeo3_decoder;
extern AVCodec vp3_decoder;
extern AVCodec theora_decoder;
extern AVCodec amr_nb_decoder;
extern AVCodec amr_nb_encoder;
extern AVCodec amr_wb_encoder;
extern AVCodec amr_wb_decoder;
extern AVCodec aac_decoder;
extern AVCodec mpeg4aac_decoder;
extern AVCodec asv1_decoder;
extern AVCodec asv2_decoder;
extern AVCodec vcr1_decoder;
extern AVCodec cljr_decoder;
extern AVCodec ffv1_decoder;
extern AVCodec snow_decoder;
extern AVCodec fourxm_decoder;
extern AVCodec mdec_decoder;
extern AVCodec roq_decoder;
extern AVCodec interplay_video_decoder;
extern AVCodec xan_wc3_decoder;
extern AVCodec rpza_decoder;
extern AVCodec cinepak_decoder;
extern AVCodec msrle_decoder;
extern AVCodec msvideo1_decoder;
extern AVCodec vqa_decoder;
extern AVCodec idcin_decoder;
extern AVCodec eightbps_decoder;
extern AVCodec smc_decoder;
extern AVCodec flic_decoder;
extern AVCodec vmdvideo_decoder;
extern AVCodec vmdaudio_decoder;
extern AVCodec truemotion1_decoder;
extern AVCodec truemotion2_decoder;
extern AVCodec mszh_decoder;
extern AVCodec zlib_decoder;
extern AVCodec ra_144_decoder;
extern AVCodec ra_288_decoder;
extern AVCodec roq_dpcm_decoder;
extern AVCodec interplay_dpcm_decoder;
extern AVCodec xan_dpcm_decoder;
extern AVCodec sol_dpcm_decoder;
extern AVCodec sonic_decoder;
extern AVCodec qtrle_decoder;
extern AVCodec flac_decoder;
extern AVCodec tscc_decoder;
extern AVCodec cscd_decoder;
extern AVCodec ulti_decoder;
extern AVCodec qdraw_decoder;
extern AVCodec xl_decoder;
extern AVCodec qpeg_decoder;
extern AVCodec shorten_decoder;
extern AVCodec loco_decoder;
extern AVCodec wnv1_decoder;
extern AVCodec aasc_decoder;
extern AVCodec alac_decoder;
extern AVCodec ws_snd1_decoder;
extern AVCodec indeo2_decoder;
extern AVCodec vorbis_decoder;
extern AVCodec fraps_decoder;
extern AVCodec libgsm_encoder;
extern AVCodec libgsm_decoder;
extern AVCodec bmp_decoder;
extern AVCodec corepng_decoder;
extern AVCodec msgsm_decoder;
extern AVCodec tta_decoder;

/* pcm codecs */
#define PCM_CODEC(id, name) \
extern AVCodec name ## _decoder; \
extern AVCodec name ## _encoder

PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);

/* adpcm codecs */

PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);

#undef PCM_CODEC

/* dummy raw video codec */
extern AVCodec rawvideo_encoder;
extern AVCodec rawvideo_decoder;

/* the following codecs use external GPL libs */
extern AVCodec ac3_decoder;
extern AVCodec dts_decoder;

/* subtitles */
extern AVCodec dvdsub_encoder;
extern AVCodec dvdsub_decoder;
extern AVCodec dvbsub_encoder;
extern AVCodec dvbsub_decoder;

/* resample.c */

struct ReSampleContext;
struct AVResampleContext;

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);

struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
void av_resample_close(struct AVResampleContext *c);

/* 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);

ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
                                      int iwidth, int iheight,
                                      int topBand, int bottomBand,
                                      int leftBand, int rightBand,
                                      int padtop, int padbottom,
                                      int padleft, int padright);


void img_resample(ImgReSampleContext *s, 
                  AVPicture *output, const AVPicture *input);

void img_resample_close(ImgReSampleContext *s);

/**
 * Allocate memory for a picture.  Call avpicture_free to free it.
 *
 * @param picture the picture to be filled in.
 * @param pix_fmt the format of the picture.
 * @param width the width of the picture.
 * @param height the height of the picture.
 * @return 0 if successful, -1 if not.
 */
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);

/* Free a picture previously allocated by avpicture_alloc. */
void avpicture_free(AVPicture *picture);

int avpicture_fill(AVPicture *picture, uint8_t *ptr,
                    int pix_fmt, int width, int height);
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
                     unsigned char *dest, int dest_size);
int avpicture_get_size(int pix_fmt, int width, int height);
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
const char *avcodec_get_pix_fmt_name(int pix_fmt);
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
enum PixelFormat avcodec_get_pix_fmt(const char* name);
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);

#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */

int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
                             int has_alpha);
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
                              int has_alpha, int *loss_ptr);

#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
int img_get_alpha_info(const AVPicture *src,
		       int pix_fmt, int width, int height);

/* convert among pixel formats */
int img_convert(AVPicture *dst, int dst_pix_fmt,
                const AVPicture *src, int pix_fmt, 
                int width, int height);

/* deinterlace a picture */
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
                          int pix_fmt, int width, int height);

/* external high level API */

extern AVCodec *first_avcodec;

/* returns LIBAVCODEC_VERSION_INT constant */
unsigned avcodec_version( void );
/* returns LIBAVCODEC_BUILD constant */
unsigned avcodec_build( void );
void avcodec_init(void);

void register_avcodec(AVCodec *format);
AVCodec *avcodec_find_encoder(enum CodecID id);
AVCodec *avcodec_find_encoder_by_name(const char *name);
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);

void avcodec_get_context_defaults(AVCodecContext *s);
AVCodecContext *avcodec_alloc_context(void);
void avcodec_get_frame_defaults(AVFrame *pic);
AVFrame *avcodec_alloc_frame(void);

int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);

int avcodec_thread_init(AVCodecContext *s, int thread_count);
void avcodec_thread_free(AVCodecContext *s);
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
//FIXME func typedef

/**
 * opens / inits the AVCodecContext.
 * not thread save!
 */
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);

int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
                         int *frame_size_ptr,
                         uint8_t *buf, int buf_size);
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
                         int *got_picture_ptr,
                         uint8_t *buf, int buf_size);
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
                            int *got_sub_ptr,
                            const uint8_t *buf, int buf_size);
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
                        int *data_size_ptr,
                        uint8_t *buf, int buf_size);
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
                         const short *samples);
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
                         const AVFrame *pict);
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
                            const AVSubtitle *sub);

int avcodec_close(AVCodecContext *avctx);

void avcodec_register_all(void);

void avcodec_flush_buffers(AVCodecContext *avctx);

void avcodec_default_free_buffers(AVCodecContext *s);

/* misc usefull functions */

/**
 * returns a single letter to describe the picture type
 */
char av_get_pict_type_char(int pict_type);


/* frame parsing */
typedef struct AVCodecParserContext {
    void *priv_data;
    struct AVCodecParser *parser;
    int64_t frame_offset; /* offset of the current frame */
    int64_t cur_offset; /* current offset 
                           (incremented by each av_parser_parse()) */
    int64_t last_frame_offset; /* offset of the last frame */
    /* video info */
    int pict_type; /* XXX: put it back in AVCodecContext */
    int repeat_pict; /* XXX: put it back in AVCodecContext */
    int64_t pts;     /* pts of the current frame */
    int64_t dts;     /* dts of the current frame */

    /* private data */
    int64_t last_pts;
    int64_t last_dts;
    int fetch_timestamp;

#define AV_PARSER_PTS_NB 4
    int cur_frame_start_index;
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
    
    int flags;
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
} AVCodecParserContext;

typedef struct AVCodecParser {
    int codec_ids[5]; /* several codec IDs are permitted */
    int priv_data_size;
    int (*parser_init)(AVCodecParserContext *s);
    int (*parser_parse)(AVCodecParserContext *s, 
                        AVCodecContext *avctx,
                        uint8_t **poutbuf, int *poutbuf_size, 
                        const uint8_t *buf, int buf_size);
    void (*parser_close)(AVCodecParserContext *s);
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
    struct AVCodecParser *next;
} AVCodecParser;

extern AVCodecParser *av_first_parser;

void av_register_codec_parser(AVCodecParser *parser);
AVCodecParserContext *av_parser_init(int codec_id);
int av_parser_parse(AVCodecParserContext *s, 
                    AVCodecContext *avctx,
                    uint8_t **poutbuf, int *poutbuf_size, 
                    const