forked from mia/Aegisub
147 lines
4.4 KiB
C++
147 lines
4.4 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
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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, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file subtitles_provider_csri.cpp
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/// @brief Wrapper for CSRI-based subtitle renderers
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/// @ingroup subtitle_rendering
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///
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#include "config.h"
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#ifdef WITH_CSRI
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#include "ass_file.h"
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#include "subtitles_provider_csri.h"
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#include "text_file_writer.h"
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#include "video_context.h"
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#include "video_frame.h"
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/// @brief Constructor
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/// @param type
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///
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CSRISubtitlesProvider::CSRISubtitlesProvider(std::string type) : subType(type) {
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}
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/// @brief Destructor
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///
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CSRISubtitlesProvider::~CSRISubtitlesProvider() {
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if (!tempfile.empty()) wxRemoveFile(tempfile);
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}
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/// @brief Load subtitles
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/// @param subs
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///
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void CSRISubtitlesProvider::LoadSubtitles(AssFile *subs) {
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// CSRI variables
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csri_rend *cur,*renderer=NULL;
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// Select renderer
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bool canOpenMem = true;
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for (cur = csri_renderer_default();cur;cur=csri_renderer_next(cur)) {
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std::string name(csri_renderer_info(cur)->name);
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if (name == subType) {
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renderer = cur;
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if (name.find("vsfilter") != name.npos) canOpenMem = false;
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break;
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}
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}
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// Matching renderer not found, fallback to default
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if (!renderer) {
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renderer = csri_renderer_default();
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if (!renderer) {
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throw _T("No CSRI renderer available, cannot show subtitles. Try installing one or switch to another subtitle provider.");
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}
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}
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// Open from memory
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if (canOpenMem) {
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std::vector<char> data;
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subs->SaveMemory(data,wxSTRING_ENCODING);
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instance.reset(csri_open_mem(renderer,&data[0],data.size(),NULL), &csri_close);
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}
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// Open from disk
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else {
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if (tempfile.empty()) {
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tempfile = wxFileName::CreateTempFileName(_T("aegisub"));
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wxRemoveFile(tempfile);
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tempfile += L".ass";
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}
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subs->Save(tempfile,false,false,wxSTRING_ENCODING);
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instance.reset(csri_open_file(renderer,tempfile.utf8_str(),NULL), &csri_close);
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}
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}
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/// @brief Draw subtitles
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/// @param dst
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/// @param time
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/// @return
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///
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void CSRISubtitlesProvider::DrawSubtitles(AegiVideoFrame &dst,double time) {
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// Check if CSRI loaded properly
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if (!instance.get()) return;
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// Load data into frame
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csri_frame frame;
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if (dst.flipped) {
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frame.planes[0] = dst.data + (dst.h-1) * dst.pitch;
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frame.strides[0] = -(signed)dst.pitch;
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}
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else {
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frame.planes[0] = dst.data;
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frame.strides[0] = dst.pitch;
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}
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frame.pixfmt = CSRI_F_BGR_;
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// Set format
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csri_fmt format;
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format.width = dst.w;
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format.height = dst.h;
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format.pixfmt = frame.pixfmt;
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int error = csri_request_fmt(instance.get(),&format);
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if (error) return;
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// Render
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csri_render(instance.get(),&frame,time);
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}
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/// @brief Get CSRI subtypes
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///
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std::vector<std::string> CSRISubtitlesProvider::GetSubTypes() {
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std::vector<std::string> final;
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for (csri_rend *cur = csri_renderer_default();cur;cur = csri_renderer_next(cur)) {
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final.push_back(csri_renderer_info(cur)->name);
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}
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return final;
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}
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#endif // WITH_CSRI
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