quicktime/v408.c

   1 #include "colormodels.h"
   2 #include "funcprotos.h"
   3 #include "quicktime.h"
   4 #include "workarounds.h"
   5 #include "v408.h"
   6
   7 #include <stdint.h>
   8 #include <stdlib.h>
   9
  10 typedef struct
  11 {
  12         unsigned char *work_buffer;
  13 } quicktime_v408_codec_t;
  14
  15 static int delete_codec(quicktime_video_map_t *vtrack)
  16 {
  17         quicktime_v408_codec_t *codec;
  18
  19         codec = ((quicktime_codec_t*)vtrack->codec)->priv;
  20         if(codec->work_buffer) free(codec->work_buffer);
  21         free(codec);
  22         return 0;
  23 }
  24
  25 static int reads_colormodel(quicktime_t *file,
  26                 int colormodel,
  27                 int track)
  28 {
  29         return (colormodel == BC_RGB888 ||
  30                 colormodel == BC_RGBA8888 ||
  31                 colormodel == BC_RGB161616 ||
  32                 colormodel == BC_RGBA16161616 ||
  33                 colormodel == BC_YUV888 ||
  34                 colormodel == BC_YUVA8888 ||
  35                 colormodel == BC_YUV161616 ||
  36                 colormodel == BC_YUVA16161616 ||
  37                 colormodel == BC_RGB8 ||
  38                 colormodel == BC_RGB565 ||
  39                 colormodel == BC_BGR888 ||
  40                 colormodel == BC_BGR8888);
  41 }
  42
  43 static int writes_colormodel(quicktime_t *file,
  44                 int colormodel,
  45                 int track)
  46 {
  47         return (colormodel == BC_RGB888 ||
  48                 colormodel == BC_RGBA8888 ||
  49                 colormodel == BC_RGB161616 ||
  50                 colormodel == BC_RGBA16161616 ||
  51                 colormodel == BC_YUV888 ||
  52                 colormodel == BC_YUVA8888 ||
  53                 colormodel == BC_YUV161616 ||
  54                 colormodel == BC_YUVA16161616);
  55 }
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70 static int decode(quicktime_t *file, unsigned char **row_pointers, int track)
  71 {
  72         int i;
  73         int64_t bytes;
  74         int result = 0;
  75         quicktime_video_map_t *vtrack = &(file->vtracks[track]);
  76         quicktime_v408_codec_t *codec = ((quicktime_codec_t*)vtrack->codec)->priv;
  77         int width = vtrack->track->tkhd.track_width;
  78         int height = vtrack->track->tkhd.track_height;
  79         unsigned char **input_rows;
  80         if(!codec->work_buffer)
  81                 codec->work_buffer = malloc(vtrack->track->tkhd.track_width *
  82                         vtrack->track->tkhd.track_height *
  83                         4);
  84
  85
  86         quicktime_set_video_position(file, vtrack->current_position, track);
  87         bytes = quicktime_frame_size(file, vtrack->current_position, track);
  88         result = !quicktime_read_data(file, codec->work_buffer, bytes);
  89
  90
  91
  92         input_rows = malloc(sizeof(unsigned char*) * height);
  93         for(i = 0; i < height; i++)
  94                 input_rows[i] = codec->work_buffer + i * width * 4;
  95
  96         cmodel_transfer(row_pointers,
  97                 input_rows,
  98                 row_pointers[0],
  99                 row_pointers[1],
 100                 row_pointers[2],
 101                 0,
 102                 0,
 103                 0,
 104                 file->in_x,
 105                 file->in_y,
 106                 file->in_w,
 107                 file->in_h,
 108                 0,
 109                 0,
 110                 file->out_w,
 111                 file->out_h,
 112                 BC_UYVA8888,
 113                 file->color_model,
 114                 0,
 115                 width,
 116                 file->out_w);
 117
 118         free(input_rows);
 119
 120         return result;
 121 }
 122
 123
 124
 125
 126
 127
 128
 129 static int encode(quicktime_t *file, unsigned char **row_pointers, int track)
 130 {
 131         int64_t offset = quicktime_position(file);
 132         quicktime_video_map_t *vtrack = &(file->vtracks[track]);
 133         quicktime_v408_codec_t *codec = ((quicktime_codec_t*)vtrack->codec)->priv;
 134         quicktime_trak_t *trak = vtrack->track;
 135         int width = vtrack->track->tkhd.track_width;
 136         int height = vtrack->track->tkhd.track_height;
 137         int bytes = width * height * 4;
 138         int result = 0;
 139         unsigned char **output_rows;
 140         int i;
 141         quicktime_atom_t chunk_atom;
 142         if(!codec->work_buffer)
 143                 codec->work_buffer = malloc(vtrack->track->tkhd.track_width *
 144                         vtrack->track->tkhd.track_height *
 145                         4);
 146
 147
 148         output_rows = malloc(sizeof(unsigned char*) * height);
 149         for(i = 0; i < height; i++)
 150                 output_rows[i] = codec->work_buffer + i * width * 4;
 151
 152         cmodel_transfer(output_rows,
 153                 row_pointers,
 154                 0,
 155                 0,
 156                 0,
 157                 row_pointers[0],
 158                 row_pointers[1],
 159                 row_pointers[2],
 160                 0,
 161                 0,
 162                 width,
 163                 height,
 164                 0,
 165                 0,
 166                 width,
 167                 height,
 168                 file->color_model,
 169                 BC_UYVA8888,
 170                 0,
 171                 width,
 172                 width);
 173
 174         quicktime_write_chunk_header(file, trak, &chunk_atom);
 175         result = !quicktime_write_data(file, codec->work_buffer, bytes);
 176         quicktime_write_chunk_footer(file,
 177                 trak,
 178                 vtrack->current_chunk,
 179                 &chunk_atom,
 180                 1);
 181
 182         vtrack->current_chunk++;
 183
 184         free(output_rows);
 185         return result;
 186 }
 187
 188 void quicktime_init_codec_v408(quicktime_video_map_t *vtrack)
 189 {
 190         quicktime_codec_t *codec_base = (quicktime_codec_t*)vtrack->codec;
 191
 192 /* Init public items */
 193         codec_base->priv = calloc(1, sizeof(quicktime_v408_codec_t));
 194         codec_base->delete_vcodec = delete_codec;
 195         codec_base->decode_video = decode;
 196         codec_base->encode_video = encode;
 197         codec_base->decode_audio = 0;
 198         codec_base->encode_audio = 0;
 199         codec_base->reads_colormodel = reads_colormodel;
 200         codec_base->writes_colormodel = writes_colormodel;
 201         codec_base->fourcc = QUICKTIME_YUVA4444;
 202         codec_base->title = "Component Y'CbCrA 8-bit 4:4:4:4";
 203         codec_base->desc = "Component Y'CbCrA 8-bit 4:4:4:4";
 204 }
 205