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/*****************************************************************
* gavl - a general purpose audio/video processing library
*
* Copyright (c) 2001 - 2011 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
/* Packed -> Planar conversion */
/*
* Needs the following macros:
* IN_TYPE: Type of the input pointers
* OUT_TYPE: Type of the output pointers
* IN_ADVANCE: Input advance
* OUT_ADVANCE_Y: Output advance
* OUT_ADVANCE_UV: Output advance
* FUNC_NAME: Name of the function
* NUM_PIXELS: The number of pixels the conversion processes at once
* CONVERT_YUV: Makes the appropriate conversion
* from <src> to <dst> for luma and chroma
* CONVERT_Y: Makes the appropriate conversion
* from <src> to <dst> for luma only (only if CHROMA_SUB > 1)
* CHROMA_SUB: Vertical chroma subsampling factor
* INIT: Variable declarations and initialization (Optional)
* CLEANUP: Stuff at the end (Optional)
*/
static void (FUNC_NAME)(gavl_video_convert_context_t * ctx)
{
#ifndef SCANLINE
int i, imax;
uint8_t * src_save;
uint8_t * dst_save_y;
uint8_t * dst_save_u;
uint8_t * dst_save_v;
#endif
int j, jmax;
IN_TYPE * src;
OUT_TYPE * dst_y;
OUT_TYPE * dst_u;
OUT_TYPE * dst_v;
#ifdef INIT
INIT
#endif
#ifndef SCANLINE
src_save = ctx->input_frame->planes[0];
dst_save_y = ctx->output_frame->planes[0];
dst_save_u = ctx->output_frame->planes[1];
dst_save_v = ctx->output_frame->planes[2];
#else
src = (IN_TYPE*)ctx->input_frame->planes[0];
dst_y = (OUT_TYPE*)ctx->output_frame->planes[0];
dst_u = (OUT_TYPE*)ctx->output_frame->planes[1];
dst_v = (OUT_TYPE*)ctx->output_frame->planes[2];
#endif
jmax = ctx->input_format.image_width / NUM_PIXELS;
#ifndef SCANLINE
imax = ctx->input_format.image_height / CHROMA_SUB;
for(i = 0; i < imax; i++)
{
src = (IN_TYPE*)src_save;
dst_y = (OUT_TYPE*)dst_save_y;
dst_u = (OUT_TYPE*)dst_save_u;
dst_v = (OUT_TYPE*)dst_save_v;
#endif /* !SCANLINE */
GAVL_LOOP_HEAD(j, jmax)
CONVERT_YUV
src += IN_ADVANCE;
dst_y += OUT_ADVANCE_Y;
dst_u += OUT_ADVANCE_UV;
dst_v += OUT_ADVANCE_UV;
GAVL_LOOP_TAIL
#ifndef SCANLINE
dst_save_y += ctx->output_frame->strides[0];
dst_save_u += ctx->output_frame->strides[1];
dst_save_v += ctx->output_frame->strides[2];
src_save += ctx->input_frame->strides[0];
#if CHROMA_SUB > 1
src = (IN_TYPE*)src_save;
dst_y = (OUT_TYPE*)dst_save_y;
GAVL_LOOP_HEAD(j, jmax)
CONVERT_Y
src += IN_ADVANCE;
dst_y += OUT_ADVANCE_Y;
GAVL_LOOP_TAIL
dst_save_y += ctx->output_frame->strides[0];
src_save += ctx->input_frame->strides[0];
#endif
#if CHROMA_SUB > 2
src = (IN_TYPE*)src_save;
dst_y = (OUT_TYPE*)dst_save_y;
GAVL_LOOP_HEAD(j, jmax)
CONVERT_Y
src += IN_ADVANCE;
dst_y += OUT_ADVANCE_Y;
GAVL_LOOP_TAIL
dst_save_y += ctx->output_frame->strides[0];
src_save += ctx->input_frame->strides[0];
#endif
#if CHROMA_SUB > 3
src = (IN_TYPE*)src_save;
dst_y = (OUT_TYPE*)dst_save_y;
GAVL_LOOP_HEAD(j, jmax)
CONVERT_Y
src += IN_ADVANCE;
dst_y += OUT_ADVANCE_Y;
GAVL_LOOP_TAIL
dst_save_y += ctx->output_frame->strides[0];
src_save += ctx->input_frame->strides[0];
#endif
}
#endif /* !SCANLINE */
#ifdef CLEANUP
CLEANUP
#endif
}
#undef FUNC_NAME // Name of the function
#undef IN_TYPE // Type of the input pointers
#undef OUT_TYPE // Type of the output pointers
#undef IN_ADVANCE // Input advance
#undef OUT_ADVANCE_Y // Output advance
#undef OUT_ADVANCE_UV // Output advance
#undef NUM_PIXELS // The number of pixels the conversion processes at once
#undef CONVERT_YUV // Makes the appropriate conversion
// from <src> to <dst> for luma and chroma
#ifdef CONVERT_Y
#undef CONVERT_Y // Makes the appropriate conversion
// from <src> to <dst> for luma only
#endif
#undef CHROMA_SUB // Vertical chroma subsampling factor
#ifdef INIT
#undef INIT
#endif
#ifdef CLEANUP
#undef CLEANUP
#endif
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