#define AVCODEC_DV_H
#include "avcodec.h"
-#include "dsputil.h"
-#include "get_bits.h"
#include "dv_profile.h"
+#include "get_bits.h"
+#include "me_cmp.h"
+
+typedef struct DVwork_chunk {
+ uint16_t buf_offset;
+ uint16_t mb_coordinates[5];
+} DVwork_chunk;
typedef struct DVVideoContext {
- const DVprofile *sys;
+ const AVDVProfile *sys;
AVFrame *frame;
AVCodecContext *avctx;
uint8_t *buf;
- uint8_t dv_zigzag[2][64];
+ uint8_t dv_zigzag[2][64];
void (*get_pixels)(int16_t *block, const uint8_t *pixels, int line_size);
void (*fdct[2])(int16_t *block);
void (*idct_put[2])(uint8_t *dest, int line_size, int16_t *block);
me_cmp_func ildct_cmp;
+ DVwork_chunk work_chunks[4 * 12 * 27];
+ uint32_t idct_factor[2 * 4 * 16 * 64];
} DVVideoContext;
enum dv_section_type {
- dv_sect_header = 0x1f,
- dv_sect_subcode = 0x3f,
- dv_sect_vaux = 0x56,
- dv_sect_audio = 0x76,
- dv_sect_video = 0x96,
+ dv_sect_header = 0x1f,
+ dv_sect_subcode = 0x3f,
+ dv_sect_vaux = 0x56,
+ dv_sect_audio = 0x76,
+ dv_sect_video = 0x96,
};
enum dv_pack_type {
- dv_header525 = 0x3f, /* see dv_write_pack for important details on */
- dv_header625 = 0xbf, /* these two packs */
- dv_timecode = 0x13,
- dv_audio_source = 0x50,
- dv_audio_control = 0x51,
- dv_audio_recdate = 0x52,
- dv_audio_rectime = 0x53,
- dv_video_source = 0x60,
- dv_video_control = 0x61,
- dv_video_recdate = 0x62,
- dv_video_rectime = 0x63,
- dv_unknown_pack = 0xff,
+ dv_header525 = 0x3f, /* see dv_write_pack for important details on */
+ dv_header625 = 0xbf, /* these two packs */
+ dv_timecode = 0x13,
+ dv_audio_source = 0x50,
+ dv_audio_control = 0x51,
+ dv_audio_recdate = 0x52,
+ dv_audio_rectime = 0x53,
+ dv_video_source = 0x60,
+ dv_video_control = 0x61,
+ dv_video_recdate = 0x62,
+ dv_video_rectime = 0x63,
+ dv_unknown_pack = 0xff,
};
#define DV_PROFILE_IS_HD(p) ((p)->video_stype & 0x10)
#define DV_PROFILE_IS_720p50(p) (((p)->video_stype == 0x18) && ((p)->dsf == 1))
/* minimum number of bytes to read from a DV stream in order to
- determine the profile */
-#define DV_PROFILE_BYTES (6*80) /* 6 DIF blocks */
+ * determine the profile */
+#define DV_PROFILE_BYTES (6 * 80) /* 6 DIF blocks */
/**
* largest possible DV frame, in bytes (1080i50)
extern RL_VLC_ELEM ff_dv_rl_vlc[1184];
-int ff_dv_init_dynamic_tables(const DVprofile *d);
+int ff_dv_init_dynamic_tables(DVVideoContext *s, const AVDVProfile *d);
int ff_dvvideo_init(AVCodecContext *avctx);
-static inline int dv_work_pool_size(const DVprofile *d)
+static inline int dv_work_pool_size(const AVDVProfile *d)
{
- int size = d->n_difchan*d->difseg_size*27;
+ int size = d->n_difchan * d->difseg_size * 27;
if (DV_PROFILE_IS_1080i50(d))
- size -= 3*27;
+ size -= 3 * 27;
if (DV_PROFILE_IS_720p50(d))
- size -= 4*27;
+ size -= 4 * 27;
return size;
}
-static inline void dv_calculate_mb_xy(DVVideoContext *s, DVwork_chunk *work_chunk, int m, int *mb_x, int *mb_y)
+static inline void dv_calculate_mb_xy(DVVideoContext *s,
+ DVwork_chunk *work_chunk,
+ int m, int *mb_x, int *mb_y)
{
- *mb_x = work_chunk->mb_coordinates[m] & 0xff;
- *mb_y = work_chunk->mb_coordinates[m] >> 8;
-
- /* We work with 720p frames split in half. The odd half-frame (chan==2,3) is displaced :-( */
- if (s->sys->height == 720 && !(s->buf[1]&0x0C)) {
- *mb_y -= (*mb_y>17)?18:-72; /* shifting the Y coordinate down by 72/2 macro blocks */
- }
+ *mb_x = work_chunk->mb_coordinates[m] & 0xff;
+ *mb_y = work_chunk->mb_coordinates[m] >> 8;
+
+ /* We work with 720p frames split in half.
+ * The odd half-frame (chan == 2,3) is displaced :-( */
+ if (s->sys->height == 720 && !(s->buf[1] & 0x0C))
+ /* shifting the Y coordinate down by 72/2 macro blocks */
+ *mb_y -= (*mb_y > 17) ? 18 : -72;
}
#endif /* AVCODEC_DV_H */