mirror of
https://github.com/outbackdingo/UltraGrid.git
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245 lines
9.2 KiB
C++
245 lines
9.2 KiB
C++
/**
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* @file src/utils/vf_split.cpp
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* @author Martin Pulec <pulec@cesnet.cz>
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*/
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/*
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* Copyright (c) 2011-2014 CESNET z.s.p.o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#include "config_unix.h"
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#include "config_win32.h"
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#endif // HAVE_CONFIG_H
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#include <stdio.h>
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#include <string.h>
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#include "utils/vf_split.h"
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#include "video.h"
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#include "video_codec.h"
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void vf_split(struct video_frame *out, struct video_frame *src,
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unsigned int x_count, unsigned int y_count, int preallocate)
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{
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unsigned int tile_idx, line_idx;
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struct tile *cur_tiles;
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unsigned int tile_line = 0;
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int out_linesize;
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int src_linesize;
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out->color_spec = src->color_spec;
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out->fps = src->fps;
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//out->aux = src->aux | AUX_TILED;
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assert(vf_get_tile(src, 0)->width % x_count == 0u && vf_get_tile(src, 0)->height % y_count == 0u);
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src_linesize = vc_get_linesize(src->tiles[0].width,
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src->color_spec);
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for(tile_idx = 0u; tile_idx < x_count * y_count; ++tile_idx) {
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out->tiles[tile_idx].width = vf_get_tile(src, 0)->width / x_count;
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out->tiles[tile_idx].height = vf_get_tile(src, 0)->height / y_count;
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out_linesize = vc_get_linesize(out->tiles[tile_idx].width,
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src->color_spec);
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out->tiles[tile_idx].data_len = out_linesize * out->tiles[tile_idx].height;
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}
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cur_tiles = &out->tiles[0];
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for(line_idx = 0u; line_idx < vf_get_tile(src, 0)->height; ++line_idx, ++tile_line) {
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unsigned int cur_tile_idx;
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unsigned int byte = 0u;
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if (line_idx % (vf_get_tile(src, 0)->height / y_count) == 0u) /* next tiles*/
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{
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tile_line = 0u;
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if (line_idx != 0u)
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cur_tiles += x_count;
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if (preallocate) {
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for (cur_tile_idx = 0u; cur_tile_idx < x_count;
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++cur_tile_idx) {
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cur_tiles[cur_tile_idx].data = (char *)
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malloc(cur_tiles[cur_tile_idx].
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data_len);
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}
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}
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}
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for(cur_tile_idx = 0u; cur_tile_idx < x_count; ++cur_tile_idx) {
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memcpy((void *) &cur_tiles[cur_tile_idx].data[
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tile_line *
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out_linesize],
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(void *) &src->tiles[0].data[line_idx *
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src_linesize + byte],
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cur_tiles[cur_tile_idx].width *
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get_bpp(src->color_spec));
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byte += cur_tiles[cur_tile_idx].width * get_bpp(src->color_spec);
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}
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}
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}
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void vf_split_horizontal(struct video_frame *out, struct video_frame *src,
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unsigned int y_count)
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{
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unsigned int i;
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for(i = 0u; i < y_count; ++i) {
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//out->aux = src->aux | AUX_TILED;
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out->fps = src->fps;
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out->color_spec = src->color_spec;
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out->tiles[i].width = src->tiles[0].width;
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out->tiles[i].height = src->tiles[0].height / y_count;
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int linesize = vc_get_linesize(out->tiles[i].width,
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out->color_spec);
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out->tiles[i].data_len = linesize *
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out->tiles[i].height;
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out->tiles[i].data = src->tiles[0].data + i * out->tiles[i].height
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* linesize;
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}
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}
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#include "utils/wait_obj.h"
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using namespace std;
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namespace {
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struct dispose_original_frame_udata {
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dispose_original_frame_udata(struct video_frame *original_frame) :
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m_disposed(0u),
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m_original_frame(original_frame) {
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pthread_mutex_init(&m_lock, NULL);
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}
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~dispose_original_frame_udata() {
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pthread_mutex_destroy(&m_lock);
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}
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static void dispose_tile(struct video_frame *frame) {
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struct dispose_original_frame_udata *inst =
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(struct dispose_original_frame_udata *) frame->dispose_udata;
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lock_guard guard(inst->m_lock);
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inst->m_disposed++;
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if (inst->m_disposed == inst->m_original_frame->tile_count) {
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if (inst->m_original_frame->dispose) {
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inst->m_original_frame->dispose(inst->m_original_frame);
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}
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delete inst;
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}
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}
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pthread_mutex_t m_lock;
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unsigned int m_disposed;
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struct video_frame *m_original_frame;
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};
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} // end of anonymous namespace
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vector<struct video_frame *> vf_separate_tiles(struct video_frame *frame)
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{
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vector<struct video_frame *> ret(frame->tile_count, 0);
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struct video_desc desc = video_desc_from_frame(frame);
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desc.tile_count = 1;
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struct dispose_original_frame_udata *udata =
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new dispose_original_frame_udata(frame);
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for (unsigned int i = 0; i < frame->tile_count; ++i) {
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ret[i] = vf_alloc_desc(desc);
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ret[i]->tiles[0].data_len = frame->tiles[i].data_len;
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ret[i]->tiles[0].data = frame->tiles[i].data;
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ret[i]->dispose = dispose_original_frame_udata::dispose_tile;
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ret[i]->dispose_udata = udata;
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}
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return ret;
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}
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namespace {
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struct separate_tiles_dispose_udata {
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separate_tiles_dispose_udata(size_t max_count) : m_count(0) {
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m_dispose = (void (**)(struct video_frame *frame)) calloc(max_count,
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sizeof(void (*)(struct video_frame *frame)));
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m_frame = (struct video_frame **) calloc(max_count, sizeof(struct video_frame *));
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}
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separate_tiles_dispose_udata() {
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free((void *) m_dispose);
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free(m_frame);
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}
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void add(struct video_frame *frame) {
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m_dispose[m_count] = frame->dispose;
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m_frame[m_count] = frame;
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m_count++;
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}
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void (**m_dispose)(struct video_frame *frame);
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struct video_frame **m_frame;
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size_t m_count;
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};
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void separate_tiles_dispose(struct video_frame *frame) {
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struct separate_tiles_dispose_udata *dispose_udata =
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(struct separate_tiles_dispose_udata *) frame->dispose_udata;
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for (size_t i = 0; i < dispose_udata->m_count; i++) {
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dispose_udata->m_dispose[i](dispose_udata->m_frame[i]);
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}
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delete dispose_udata;
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vf_free(frame);
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}
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} // end of anonymous namespace
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struct video_frame * vf_merge_tiles(std::vector<struct video_frame *> const & tiles)
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{
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struct video_desc desc = video_desc_from_frame(tiles[0]);
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desc.tile_count = tiles.size();
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struct video_frame *ret = vf_alloc_desc(desc);
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struct separate_tiles_dispose_udata *udata =
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new separate_tiles_dispose_udata(tiles.size());
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for (unsigned int i = 0; i < tiles.size(); ++i) {
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ret->tiles[i].data = tiles[i]->tiles[0].data;
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ret->tiles[i].data_len = tiles[i]->tiles[0].data_len;
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if (tiles[i]->dispose) {
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udata->add(tiles[i]);
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}
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}
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ret->dispose = separate_tiles_dispose;
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ret->dispose_udata = udata;
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return ret;
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}
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