ralf: use planar sample format

[ffmpeg] / libavcodec / dvdata.h

diff --git a/libavcodec/dvdata.h b/libavcodec/dvdata.h
index d729b4dff50819e6a510f9624f001ebc9bed30e6..c50fa5f05d8a2cfe235f31c56fb3c2f90bfe9cc3 100644 (file)
--- a/libavcodec/dvdata.h
+++ b/libavcodec/dvdata.h
@@ -27,43 +27,24 @@
 #ifndef AVCODEC_DVDATA_H
 #define AVCODEC_DVDATA_H
 
-#include "libavutil/rational.h"
 #include "avcodec.h"
+#include "dsputil.h"
+#include "get_bits.h"
+#include "dv_profile.h"
 
-typedef struct DVwork_chunk {
-    uint16_t  buf_offset;
-    uint16_t  mb_coordinates[5];
-} DVwork_chunk;
+typedef struct DVVideoContext {
+    const DVprofile *sys;
+    AVFrame          picture;
+    AVCodecContext  *avctx;
+    uint8_t         *buf;
 
-/*
- * DVprofile is used to express the differences between various
- * DV flavors. For now it's primarily used for differentiating
- * 525/60 and 625/50, but the plans are to use it for various
- * DV specs as well (e.g. SMPTE314M vs. IEC 61834).
- */
-typedef struct DVprofile {
-    int              dsf;                   /* value of the dsf in the DV header */
-    int              video_stype;           /* stype for VAUX source pack */
-    int              frame_size;            /* total size of one frame in bytes */
-    int              difseg_size;           /* number of DIF segments per DIF channel */
-    int              n_difchan;             /* number of DIF channels per frame */
-    AVRational       time_base;             /* 1/framerate */
-    int              ltc_divisor;           /* FPS from the LTS standpoint */
-    int              height;                /* picture height in pixels */
-    int              width;                 /* picture width in pixels */
-    AVRational       sar[2];                /* sample aspect ratios for 4:3 and 16:9 */
-    DVwork_chunk    *work_chunks;           /* each thread gets its own chunk of frame to work on */
-    uint32_t        *idct_factor;           /* set of iDCT factor tables */
-    enum PixelFormat pix_fmt;               /* picture pixel format */
-    int              bpm;                   /* blocks per macroblock */
-    const uint8_t   *block_sizes;           /* AC block sizes, in bits */
-    int              audio_stride;          /* size of audio_shuffle table */
-    int              audio_min_samples[3];  /* min amount of audio samples */
-                                            /* for 48kHz, 44.1kHz and 32kHz */
-    int              audio_samples_dist[5]; /* how many samples are supposed to be */
-                                            /* in each frame in a 5 frames window */
-    const uint8_t  (*audio_shuffle)[9];     /* PCM shuffling table */
-} DVprofile;
+    uint8_t  dv_zigzag[2][64];
+
+    void (*get_pixels)(DCTELEM *block, const uint8_t *pixels, int line_size);
+    void (*fdct[2])(DCTELEM *block);
+    void (*idct_put[2])(uint8_t *dest, int line_size, DCTELEM *block);
+    me_cmp_func ildct_cmp;
+} DVVideoContext;
 
 enum dv_section_type {
      dv_sect_header  = 0x1f,
@@ -88,6 +69,16 @@ enum dv_pack_type {
      dv_unknown_pack  = 0xff,
 };
 
+extern const uint8_t ff_dv_quant_shifts[22][4];
+extern const uint8_t ff_dv_quant_offset[4];
+
+extern const int ff_dv_iweight_88[64];
+extern const int ff_dv_iweight_248[64];
+extern const int ff_dv_iweight_1080_y[64];
+extern const int ff_dv_iweight_1080_c[64];
+extern const int ff_dv_iweight_720_y[64];
+extern const int ff_dv_iweight_720_c[64];
+
 #define DV_PROFILE_IS_HD(p) ((p)->video_stype & 0x10)
 #define DV_PROFILE_IS_1080i50(p) (((p)->video_stype == 0x14) && ((p)->dsf == 1))
 #define DV_PROFILE_IS_720p50(p)  (((p)->video_stype == 0x18) && ((p)->dsf == 1))
@@ -106,8 +97,32 @@ enum dv_pack_type {
  */
 #define DV_MAX_BPM 8
 
-const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys,
-                                         const uint8_t* frame, unsigned buf_size);
-const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec);
+#define TEX_VLC_BITS 9
+
+extern RL_VLC_ELEM ff_dv_rl_vlc[1184];
+
+int ff_dv_init_dynamic_tables(const DVprofile *d);
+int ff_dvvideo_init(AVCodecContext *avctx);
+
+static inline int dv_work_pool_size(const DVprofile *d)
+{
+    int size = d->n_difchan*d->difseg_size*27;
+    if (DV_PROFILE_IS_1080i50(d))
+        size -= 3*27;
+    if (DV_PROFILE_IS_720p50(d))
+        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)
+{
+     *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 */
+     }
+}
 
 #endif /* AVCODEC_DVDATA_H */