cinelerra-5.1/cinelerra/libdv.h

   1 /*
   2  * Grabbing algorithm is from dvgrab
   3  */
   4
   5 #ifndef LIBDV_H
   6 #define LIBDV_H
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 // Buffer sizes
  13 #define DV_NTSC_SIZE 120000
  14 #define DV_PAL_SIZE 144000
  15 #define CODEC_TAG_DVSD "dvsd"
  16
  17 // Norms
  18 #define DV_NTSC 0
  19 #define DV_PAL 1
  20
  21
  22 #include <libdv/dv.h>
  23 #include <pthread.h>
  24 #include <sys/time.h>
  25
  26 typedef struct
  27 {
  28         dv_decoder_t *decoder;
  29         dv_encoder_t *encoder;
  30         short *temp_audio[4];
  31         unsigned char *temp_video;
  32         int use_mmx;
  33         int audio_frames;
  34 } dv_t;
  35
  36
  37 // ================================== The frame decoder
  38 dv_t* dv_new();
  39 int dv_delete(dv_t* dv);
  40
  41 // Decode a video frame from the data and return nonzero if failure
  42 int dv_read_video(dv_t *dv,
  43                 unsigned char **output_rows,
  44                 unsigned char *data,
  45                 long bytes,
  46                 int color_model);
  47 // Decode audio from the data and return the number of samples decoded.
  48 int dv_read_audio(dv_t *dv,
  49                 unsigned char *samples,
  50                 unsigned char *data,
  51                 long size,
  52                 int channels,
  53                 int bits);
  54
  55 void dv_write_video(dv_t *dv,
  56                 unsigned char *data,
  57                 unsigned char **input_rows,
  58                 int color_model,
  59                 int norm);
  60
  61 // Write audio into frame after video is encoded.
  62 // Returns the number of samples put in frame.
  63 int dv_write_audio(dv_t *dv,
  64                 unsigned char *data,
  65                 unsigned char *input_samples,
  66                 int max_samples,
  67                 int channels,
  68                 int bits,
  69                 int rate,
  70                 int norm);
  71
  72
  73 #ifdef __cplusplus
  74 }
  75 #endif
  76
  77 #endif