X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.0%2Flibzmpeg3%2Fvideo%2Foutput.C;fp=cinelerra-5.0%2Flibzmpeg3%2Fvideo%2Foutput.C;h=0000000000000000000000000000000000000000;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=d8b88f4a12e241032b0c6b15d2892d4fc727a0e8;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.0/libzmpeg3/video/output.C b/cinelerra-5.0/libzmpeg3/video/output.C
deleted file mode 100644
index d8b88f4a..00000000
--- a/cinelerra-5.0/libzmpeg3/video/output.C
+++ /dev/null
@@ -1,587 +0,0 @@
-#include "../libzmpeg3.h"
-
-/* Algorithm */
-/*   r = (int)(*y + 1.371 * (*cr - 128)); */
-/*   g = (int)(*y - 0.698 * (*cr - 128) - 0.336 * (*cb - 128)); */
-/*   b = (int)(*y + 1.732 * (*cb - 128)); */
-
-
-#define INPUT_420 \
-    int yi = y_table[h] + in_y; int uvi = (yi >> 1) * chrom_width; \
-    uint8_t *y_in = &yy[yi * coded_picture_width] + in_x; \
-    uint8_t *cb_in = &uu[uvi] + in_x1; \
-    uint8_t *cr_in = &vv[uvi] + in_x1
-
-#define INPUT_422 \
-    int yi = y_table[h] + in_y; int uvi = yi * chrom_width; \
-    uint8_t *y_in = &yy[yi * coded_picture_width] + in_x; \
-    uint8_t *cb_in = &uu[uvi] + in_x1; \
-    uint8_t *cr_in = &vv[uvi] + in_x1
-
-#define OUTPUT_420 \
-    uint8_t *y_out = output_rows[h]; int h1 = h >> 1; \
-    uint8_t *u_out = output_rows[h1+offset0]; \
-    uint8_t *v_out = output_rows[h1+offset2]
-
-#define OUTPUT_422 \
-    uint8_t *y_out = output_rows[h]; \
-    uint8_t *u_out = output_rows[h+offset0]; \
-    uint8_t *v_out = output_rows[h+offset1]
-
-static int z601[256];
-#define Y_YUV(v) (v)
-#define Y_601(v) z601[v]
-
-/* RGB output */
-
-#define RGB_HEAD(fmt) \
-  for( int h=0; h<ht; ++h ) { INPUT_##fmt; \
-    uint8_t *rgb = output_rows[h];
-
-#define RGB_TAIL \
-  }
-
-#define RGB_UNSCALED(out,csp) \
-  for( int w=0, iuv=0; w<wd; w+=2, ++iuv ) { \
-    int cr = cr_in[iuv], cb = cb_in[iuv]; \
-    int y_l = Y_##csp(y_in[w+0]) << 16; { \
-    STORE_##out##_R(y_l + cr2r[cr]); \
-    STORE_##out##_G(y_l + crb2g[(cr<<8)|cb]); \
-    STORE_##out##_B(y_l + cb2b[cb]); \
-    STORE_##out##_A(0); } \
-    if( w+1 >= wd ) break; \
-    y_l = y_in[w+1] << 16; { \
-    STORE_##out##_R(y_l + cr2r[cr]); \
-    STORE_##out##_G(y_l + crb2g[(cr<<8)|cb]); \
-    STORE_##out##_B(y_l + cb2b[cb]); \
-    STORE_##out##_A(0); } \
-  }
-
-#define RGB_SCALED(out,csp) \
-  for( int w=0; w<wd; ++w ) { \
-    int ix = x_table[w]; int iuv = ix >> 1; \
-    int cr = cr_in[iuv], cb = cb_in[iuv]; \
-    int y_l = Y_##csp(y_in[ix]) << 16; \
-    STORE_##out##_R(y_l + cr2r[cr]); \
-    STORE_##out##_G(y_l + crb2g[(cr<<8)|cb]); \
-    STORE_##out##_B(y_l + cb2b[cb]); \
-    STORE_##out##_A(0); \
-  }
-
-#define STORE_BGR888_R(v) rgb[2] = clip((v) >> 16)
-#define STORE_BGR888_G(v) rgb[1] = clip((v) >> 16)
-#define STORE_BGR888_B(v) rgb[0] = clip((v) >> 16)
-#define STORE_BGR888_A(v) rgb += 3
-
-#define STORE_BGRA8888_R(v) rgb[2] = clip((v) >> 16)
-#define STORE_BGRA8888_G(v) rgb[1] = clip((v) >> 16)
-#define STORE_BGRA8888_B(v) rgb[0] = clip((v) >> 16)
-#define STORE_BGRA8888_A(v) rgb[3] = 255;  rgb += 4
-
-#define STORE_RGB565_R(v) int r = clip((v) >> 16)
-#define STORE_RGB565_G(v) int g = clip((v) >> 16)
-#define STORE_RGB565_B(v) int b = clip((v) >> 16)
-#define STORE_RGB565_A(v) *((uint16_t*)rgb) = \
-  ((r&0xf8)<<8) | ((g&0xfc)<<3) | ((b&0xf8)>>3); \
-  rgb += 2
-
-#define STORE_RGB888_R(v) rgb[0] = clip((v) >> 16)
-#define STORE_RGB888_G(v) rgb[1] = clip((v) >> 16)
-#define STORE_RGB888_B(v) rgb[2] = clip((v) >> 16)
-#define STORE_RGB888_A(v) rgb += 3
-
-#define STORE_RGBA8888_R(v) rgb[0] = clip((v) >> 16)
-#define STORE_RGBA8888_G(v) rgb[1] = clip((v) >> 16)
-#define STORE_RGBA8888_B(v) rgb[2] = clip((v) >> 16)
-#define STORE_RGBA8888_A(v) rgb[3] = 255;  rgb += 4
-
-#define STORE_RGBA16161616_R(v) rgb_s[0] = clip((v) >> 8, -32768, 32767)
-#define STORE_RGBA16161616_G(v) rgb_s[1] = clip((v) >> 8, -32768, 32767)
-#define STORE_RGBA16161616_B(v) rgb_s[2] = clip((v) >> 8, -32768, 32767)
-#define STORE_RGBA16161616_A(v) rgb_s[3] = 32767;  rgb_s += 4
-
-
-/* YUV output */
-
-#define YUV_HEAD_420 \
-  for( int h=0; h<ht; ++h ) { INPUT_420; \
-    uint8_t *yuv_out = output_rows[h];
-
-#define YUV_HEAD_422 \
-  for( int h=0; h<ht; ++h ) { INPUT_422; \
-    uint8_t *yuv_out = output_rows[h];
-
-#define YUV_TAIL \
-  }
-
-#define YUV_SCALED_YUV888(csp) \
-  for( int w=0; w<wd; ) { \
-    int ix = x_table[w++]; int iuv = ix >> 1; \
-    STORE_Y(Y_##csp(y_in[ix])); STORE_U(cb_in[iuv]); \
-    STORE_V(cr_in[iuv]); \
-  }
-
-#define YUV_SCALED_YUVA8888(csp) \
-  for( int w=0; w<wd; ) { \
-    int ix = x_table[w++]; int iuv = ix >> 1; \
-    STORE_Y(Y_##csp(y_in[ix])); STORE_U(cb_in[iuv]); \
-    STORE_V(cr_in[iuv]); STORE_A(255); \
-  }
-
-#define YUV_SCALED_YUYV(csp) \
-  for( int w=0; w<wd; ) { \
-    int ix = x_table[w++]; int iuv = ix >> 1; \
-    STORE_Y(Y_##csp(y_in[ix])); STORE_U(cb_in[iuv]); \
-    ix = x_table[w++]; iuv = ix >> 1; \
-    STORE_Y(Y_##csp(y_in[ix])); STORE_V(cr_in[iuv]); \
-  }
-
-#define YUV_SCALED_UYVY(csp) \
-  for( int w=0; w<wd; ) { \
-    int ix = x_table[w++]; int iuv = ix >> 1; \
-    STORE_U(cb_in[iuv]); STORE_Y(Y_##csp(y_in[ix])); \
-    ix = x_table[w++]; iuv = ix >> 1; \
-    STORE_V(cr_in[iuv]); STORE_Y(Y_##csp(y_in[ix])); \
-  }
-
-#define YUV_UNSCALED_YUV888(csp) \
-  for( int w=0, iuv=0; w<wd; w+=2, ++iuv ) { \
-    STORE_Y(Y_##csp(y_in[w+0])); STORE_U(cb_in[iuv]); STORE_V(cr_in[iuv]); \
-    if( w+1 >= wd ) break; \
-    STORE_Y(Y_##csp(y_in[w+1])); STORE_U(cb_in[iuv]); STORE_V(cr_in[iuv]); \
-  }
-
-#define YUV_UNSCALED_YUVA8888(csp) \
-  for( int w=0, iuv=0; w<wd; w+=2, ++iuv ) { \
-    STORE_Y(Y_##csp(y_in[w+0])); STORE_U(cb_in[iuv]); \
-    STORE_V(cr_in[iuv]); STORE_A(255); \
-    if( w+1 >= wd ) break; \
-    STORE_Y(Y_##csp(y_in[w+1])); STORE_U(cb_in[iuv]); \
-    STORE_V(cr_in[iuv]); STORE_A(255); \
-  }
-
-#define YUV_UNSCALED_YUYV(csp) \
-  for( int w=0, iuv=0; w<wd; ++iuv ) { \
-    STORE_Y(Y_##csp(y_in[w++])); STORE_U(cb_in[iuv]); \
-    STORE_Y(Y_##csp(y_in[w++])); STORE_V(cr_in[iuv]); \
-  }
-
-#define YUV_UNSCALED_UYVY(csp) \
-  for( int w=0, iuv=0; w<wd; ++iuv ) { \
-    STORE_U(cb_in[iuv]); STORE_Y(Y_##csp(y_in[w++])); \
-    STORE_V(cr_in[iuv]); STORE_Y(Y_##csp(y_in[w++])); \
-  }
-
-#define STORE_Y(v) *yuv_out++ = (v)
-#define STORE_U(v) *yuv_out++ = (v)
-#define STORE_V(v) *yuv_out++ = (v)
-#define STORE_A(v) *yuv_out++ = (v)
-
-/* YUVP output */
-
-
-#define YUV420P_HEAD_420 \
-  for( int h=0; h<ht; ++h ) { INPUT_420; OUTPUT_420;
-
-#define YUV422P_HEAD_420 \
-  for( int h=0; h<ht; ++h ) { INPUT_420; OUTPUT_422;
-
-#define YUV420P_HEAD_422 \
-  for( int h=0; h<ht; ++h ) { INPUT_422; OUTPUT_420;
-
-#define YUV422P_HEAD_422 \
-  for( int h=0; h<ht; ++h ) { INPUT_422; OUTPUT_422;
-
-#define YUVP_TAIL \
-  }
-
-#define YUV_SCALED_YUVP(CSP) \
-  for( int w=0; w<wd; ) { \
-    int ix = x_table[w++]; int iuv = ix >> 1; \
-    STORE_UP(cb_in[iuv]); STORE_YP(Y_##CSP(y_in[ix])); \
-    ix = x_table[w++]; iuv = ix >> 1; \
-    STORE_VP(cr_in[iuv]); STORE_YP(Y_##CSP(y_in[ix])); \
-  }
-
-#define YUV_UNSCALED_YUVP(CSP) \
-  for( int w=0, iuv=0; w<wd; ++iuv ) { \
-    STORE_UP(cb_in[iuv]); STORE_YP(Y_##CSP(y_in[w++])); \
-    STORE_VP(cr_in[iuv]); STORE_YP(Y_##CSP(y_in[w++])); \
-  }
-
-#define STORE_YP(v) *y_out++ = (v)
-#define STORE_UP(v) *u_out++ = (v)
-#define STORE_VP(v) *v_out++ = (v)
-
-/* transfer macros */
-/*  CSP = input colorspace */
-/*  FMT = input format */
-/*  OUT = output colorspace/format */
-
-#define SCALED_RGB(CSP,FMT,OUT) case cmdl_##CSP##_##OUT: { \
-  RGB_HEAD(FMT) \
-  RGB_SCALED(OUT,CSP) \
-  RGB_TAIL \
-  break; }
-
-#define UNSCALED_RGB(CSP,FMT,OUT) case cmdl_##CSP##_##OUT: { \
-  RGB_HEAD(FMT) \
-  RGB_UNSCALED(OUT,CSP) \
-  RGB_TAIL \
-  break; }
-
-#define SCALED_YUV(CSP,FMT,OUT) case cmdl_##CSP##_##OUT: { \
-  OUT##_HEAD(FMT) \
-  YUV_SCALED_##OUT(CSP) \
-  YUV_TAIL \
-  break; }
-
-#define UNSCALED_YUV(CSP,FMT,OUT) case cmdl_##CSP##_##OUT: { \
-  OUT##_HEAD(FMT) \
-  YUV_UNSCALED_##OUT(CSP) \
-  YUV_TAIL \
-  break; }
-
-
-/* naming equivalances */
-
-#define YUV_UNSCALED_YUV420P YUV_UNSCALED_YUVP
-#define YUV_UNSCALED_YUV422P YUV_UNSCALED_YUVP
-#define YUV_SCALED_YUV420P YUV_SCALED_YUVP
-#define YUV_SCALED_YUV422P YUV_SCALED_YUVP
-
-#define YUYV_HEAD(fmt) YUV_HEAD_##fmt
-#define UYVY_HEAD(fmt) YUV_HEAD_##fmt
-#define YUV888_HEAD(fmt) YUV_HEAD_##fmt
-#define YUVA8888_HEAD(fmt) YUV_HEAD_##fmt
-#define YUV420P_HEAD(fmt) YUV420P_HEAD_##fmt
-#define YUV422P_HEAD(fmt) YUV422P_HEAD_##fmt
-
-#define cmdl_YUV_BGR888   cmdl_BGR888
-#define cmdl_YUV_BGRA8888 cmdl_BGRA8888
-#define cmdl_YUV_RGB565   cmdl_RGB565
-#define cmdl_YUV_RGB888   cmdl_RGB888
-#define cmdl_YUV_RGBA8888 cmdl_RGBA8888
-
-#define cmdl_YUV_YUV888   cmdl_YUV888
-#define cmdl_YUV_YUVA8888 cmdl_YUVA8888
-#define cmdl_YUV_YUV420P  cmdl_YUV420P
-#define cmdl_YUV_YUV422P  cmdl_YUV422P
-#define cmdl_YUV_YUYV     cmdl_YUYV
-#define cmdl_YUV_UYVY     cmdl_UYVY
-
-int zvideo_t::
-dither_frame(uint8_t *yy, uint8_t *uu, uint8_t *vv, uint8_t **output_rows)
-{
-  int *cr2r = cr_to_r;
-  int *crb2g = crb_to_g;
-  int *cb2b = cb_to_b;
-  int wd = out_w, ht = out_h;
-  int offset0 = ht, in_x1 = in_x >> 1;
-  int offset1 = offset0 + ht;
-  int offset2 = offset0 + ht/2;
-  if( chroma_format == cfmt_420 ) {
-    if( out_w != horizontal_size ) {
-      switch( color_model ) {
-      SCALED_RGB(YUV,420,BGR888);
-      SCALED_RGB(YUV,420,BGRA8888);
-      SCALED_RGB(YUV,420,RGB565);
-      SCALED_RGB(YUV,420,RGB888);
-      SCALED_RGB(YUV,420,RGBA8888);
-      SCALED_RGB(601,420,BGR888);
-      SCALED_RGB(601,420,BGRA8888);
-      SCALED_RGB(601,420,RGB565);
-      SCALED_RGB(601,420,RGB888);
-      SCALED_RGB(601,420,RGBA8888);
-
-      SCALED_YUV(YUV,420,YUV420P);
-      SCALED_YUV(YUV,420,YUV422P);
-      SCALED_YUV(YUV,420,YUYV);
-      SCALED_YUV(YUV,420,UYVY);
-      SCALED_YUV(YUV,420,YUV888);
-      SCALED_YUV(YUV,420,YUVA8888);
-      SCALED_YUV(601,420,YUV420P);
-      SCALED_YUV(601,420,YUV422P);
-      SCALED_YUV(601,420,YUYV);
-      SCALED_YUV(601,420,UYVY);
-      SCALED_YUV(601,420,YUV888);
-      SCALED_YUV(601,420,YUVA8888);
-
-      case cmdl_RGBA16161616: {
-        RGB_HEAD(420) \
-        uint16_t *rgb_s = (uint16_t*)rgb;
-        RGB_SCALED(RGBA16161616,YUV)
-        RGB_TAIL
-        break;
-        }
-      }
-    }
-    else {
-      switch( color_model ) {
-      UNSCALED_RGB(YUV,420,BGR888);
-      UNSCALED_RGB(YUV,420,BGRA8888);
-      UNSCALED_RGB(YUV,420,RGB565);
-      UNSCALED_RGB(YUV,420,RGB888);
-      UNSCALED_RGB(YUV,420,RGBA8888);
-      UNSCALED_RGB(601,420,BGR888);
-      UNSCALED_RGB(601,420,BGRA8888);
-      UNSCALED_RGB(601,420,RGB565);
-      UNSCALED_RGB(601,420,RGB888);
-      UNSCALED_RGB(601,420,RGBA8888);
-
-      UNSCALED_YUV(YUV,420,YUV420P);
-      UNSCALED_YUV(YUV,420,YUV422P);
-      UNSCALED_YUV(YUV,420,YUYV);
-      UNSCALED_YUV(YUV,420,UYVY);
-      UNSCALED_YUV(YUV,420,YUV888);
-      UNSCALED_YUV(YUV,420,YUVA8888);
-      UNSCALED_YUV(601,420,YUV420P);
-      UNSCALED_YUV(601,420,YUV422P);
-      UNSCALED_YUV(601,420,YUYV);
-      UNSCALED_YUV(601,420,UYVY);
-      UNSCALED_YUV(601,420,YUV888);
-      UNSCALED_YUV(601,420,YUVA8888);
-
-      case cmdl_RGBA16161616: {
-        RGB_HEAD(420) \
-        uint16_t *rgb_s = (uint16_t*)rgb;
-        RGB_UNSCALED(RGBA16161616,YUV)
-        RGB_TAIL
-        break;
-        }
-      }
-    }
-  }
-  else {
-    if( out_w != horizontal_size ) {
-      switch( color_model ) {
-      SCALED_RGB(YUV,422,BGR888);
-      SCALED_RGB(YUV,422,BGRA8888);
-      SCALED_RGB(YUV,422,RGB565);
-      SCALED_RGB(YUV,422,RGB888);
-      SCALED_RGB(YUV,422,RGBA8888);
-      SCALED_RGB(601,422,BGR888);
-      SCALED_RGB(601,422,BGRA8888);
-      SCALED_RGB(601,422,RGB565);
-      SCALED_RGB(601,422,RGB888);
-      SCALED_RGB(601,422,RGBA8888);
-
-      SCALED_YUV(YUV,422,YUV420P);
-      SCALED_YUV(YUV,422,YUV422P);
-      SCALED_YUV(YUV,422,YUYV);
-      SCALED_YUV(YUV,422,UYVY);
-      SCALED_YUV(YUV,422,YUV888);
-      SCALED_YUV(YUV,422,YUVA8888);
-      SCALED_YUV(601,422,YUV420P);
-      SCALED_YUV(601,422,YUV422P);
-      SCALED_YUV(601,422,YUYV);
-      SCALED_YUV(601,422,UYVY);
-      SCALED_YUV(601,422,YUV888);
-      SCALED_YUV(601,422,YUVA8888);
-
-      case cmdl_RGBA16161616: {
-        RGB_HEAD(422) \
-        uint16_t *rgb_s = (uint16_t*)rgb;
-        RGB_SCALED(RGBA16161616,YUV)
-        RGB_TAIL
-        break;
-        }
-      }
-    }
-    else {
-      switch( color_model ) {
-      UNSCALED_RGB(YUV,422,BGR888);
-      UNSCALED_RGB(YUV,422,BGRA8888);
-      UNSCALED_RGB(YUV,422,RGB565);
-      UNSCALED_RGB(YUV,422,RGB888);
-      UNSCALED_RGB(YUV,422,RGBA8888);
-      UNSCALED_RGB(601,422,BGR888);
-      UNSCALED_RGB(601,422,BGRA8888);
-      UNSCALED_RGB(601,422,RGB565);
-      UNSCALED_RGB(601,422,RGB888);
-      UNSCALED_RGB(601,422,RGBA8888);
-
-      UNSCALED_YUV(YUV,422,YUV420P);
-      UNSCALED_YUV(YUV,422,YUV422P);
-      UNSCALED_YUV(YUV,422,YUYV);
-      UNSCALED_YUV(YUV,422,UYVY);
-      UNSCALED_YUV(YUV,422,YUV888);
-      UNSCALED_YUV(YUV,422,YUVA8888);
-      UNSCALED_YUV(601,422,YUV420P);
-      UNSCALED_YUV(601,422,YUV422P);
-      UNSCALED_YUV(601,422,YUYV);
-      UNSCALED_YUV(601,422,UYVY);
-      UNSCALED_YUV(601,422,YUV888);
-      UNSCALED_YUV(601,422,YUVA8888);
-
-      case cmdl_RGBA16161616: {
-        RGB_HEAD(422) \
-        uint16_t *rgb_s = (uint16_t*)rgb;
-        RGB_UNSCALED(RGBA16161616,YUV)
-        RGB_TAIL
-        break;
-        }
-      }
-    }
-  }
-  return 0;
-}
-
-int zvideo_t::
-dither_frame444(uint8_t *yy, uint8_t *uu, uint8_t *vv)
-{
-  return 0;
-}
-
-int zvideo_t::
-dithertop(uint8_t *yy, uint8_t *uu, uint8_t *vv)
-{
-  return dither_frame(yy, uu, vv, output_rows);
-}
-
-int zvideo_t::
-dithertop444(uint8_t *yy, uint8_t *uu, uint8_t *vv)
-{
-  return 0;
-}
-
-int zvideo_t::
-ditherbot(uint8_t *yy, uint8_t *uu, uint8_t *vv)
-{
-  return 0;
-}
-
-int zvideo_t::
-ditherbot444(uint8_t *yy, uint8_t *uu, uint8_t *vv)
-{
-  return 0;
-}
-
-int zvideo_t::
-init_output()
-{
-  int i, value;
-  for( i=0; i<256; ++i ) {
-    value = (int)(1.1644 * i - 255 * 0.0627 + 0.5);
-    z601[i] = clip(value) << 16;
-  }
-  return 0;
-}
-
-int zvideo_t::
-present_frame(uint8_t *yy, uint8_t *uu, uint8_t *vv)
-{
-  int i;
-  ++frame_time;
-  ++seek_time;
-
-  /* Copy YUV buffers */
-  if( want_yvu ) {
-    long size0, size1;
-    long offset0, offset1;
-    int chroma_denominator;
-    /* Drop a frame */
-    if( !y_output ) return 0;
-
-    chroma_denominator = chroma_format == cfmt_420 ? 2 : 1;
-
-    /* Copy a frame */
-    /* Three blocks */
-    if( in_x == 0 && in_w >= coded_picture_width &&
-        row_span == coded_picture_width ) {
-      size0 = coded_picture_width * in_h;
-      size1 = chrom_width * (int)((float)in_h / chroma_denominator + 0.5);
-      offset0 = coded_picture_width * in_y;
-      offset1 = chrom_width * (int)((float)in_y / chroma_denominator + 0.5);
-
-//zmsg("1\n");
-/*
- *       if(in_y > 0)
- *       {
- *         offset[1] += chrom_width / 2;
- *         size[1] += chrom_width / 2;
- *       }
- */
-
-      memcpy(y_output, yy + offset0, size0);
-      memcpy(u_output, uu + offset1, size1);
-      memcpy(v_output, vv + offset1, size1);
-    }
-    else {
-      /* One block per row */
-//zmsgs("2 %d %d %d\n", in_w, coded_picture_width, chrom_width);
-      int row_span = in_w;
-      int row_span0, sofs;
-      int row_span1, dofs;
-
-      if( row_span )
-        row_span = row_span;
-
-      row_span0 = row_span;
-      row_span1 = (row_span >> 1);
-      size0 = in_w;
-      size1 = (in_w >> 1);
-      offset0 = coded_picture_width * in_y;
-      offset1 = chrom_width * in_y / chroma_denominator;
-  
-      for( i=0; i<in_h; ++i ) {
-        memcpy(y_output + i*row_span0, yy + offset0 + in_x, size0);
-        offset0 += coded_picture_width;
-        if( chroma_denominator == 1 || !(i % 2) ) {
-          sofs = offset1 + (in_x>>1);
-          dofs = i/chroma_denominator * row_span1; 
-          memcpy(u_output + dofs, uu + sofs, size1);
-          memcpy(v_output + dofs, vv + sofs, size1);
-          if( horizontal_size < in_w ) {
-            dofs = i/chroma_denominator * row_span1 + (horizontal_size>>1);
-            sofs = (in_w>>1) - (horizontal_size>>1);
-            memset(u_output + dofs, 0x80, sofs);
-            memset(v_output + dofs, 0x80, sofs);
-          }
-        }
-        
-
-        if( chroma_denominator == 1 || (i%2) )
-          offset1 += chrom_width;
-      }
-    }
-
-    return 0;
-  }
-
-/* Want RGB buffer */
-/* Copy the frame to the output with YUV to RGB conversion */
-  if( prog_seq ) {
-    if( chroma_format != cfmt_444 )
-      dither_frame(yy, uu, vv, output_rows);
-    else
-      dither_frame444(yy, uu, vv);
-  }
-  else {
-    if( (pict_struct == pics_FRAME_PICTURE && topfirst) || 
-         pict_struct == pics_BOTTOM_FIELD) {
-/* top field first */
-      if( chroma_format != cfmt_444 ) {
-        dithertop(yy, uu, vv);
-        ditherbot(yy, uu, vv);
-      }
-      else {
-        dithertop444(yy, uu, vv);
-        ditherbot444(yy, uu, vv);
-      }
-    }
-    else {
-/* bottom field first */
-      if( chroma_format != cfmt_444 ) {
-        ditherbot(yy, uu, vv);
-        dithertop(yy, uu, vv);
-      }
-      else {
-        ditherbot444(yy, uu, vv);
-        dithertop444(yy, uu, vv);
-      }
-    }
-  }
-  return 0;
-}
-