LAVCFile
Originally committed to SVN as r325.
This commit is contained in:
parent
33ff5515e5
commit
71511a3950
5 changed files with 138 additions and 16 deletions
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@ -59,6 +59,7 @@ aegisub_SOURCES = about.cpp \
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frame_main_events.cpp \
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hilimod_textctrl.cpp \
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hotkeys.cpp \
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lavc_file.cpp \
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main.cpp \
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md5.c \
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mkv_wrap.cpp \
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65
core/lavc_file.cpp
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65
core/lavc_file.cpp
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@ -0,0 +1,65 @@
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// Copyright (c) 2005, 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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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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#include "lavc_file.h"
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#ifdef USE_LAVC
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LAVCFile::LAVCFile(wxString filename)
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{
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int result = 0;
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fctx = NULL;
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result = av_open_input_file(&fctx,filename.mb_str(wxConvLocal),NULL,0,NULL);
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if (result != 0) throw _T("Failed opening file.");
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// Get stream info
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result = av_find_stream_info(fctx);
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if (result < 0) {
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av_close_input_file(fctx);
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fctx = NULL;
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throw _T("Unable to read stream info");
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}
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refs = 1;
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}
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LAVCFile::~LAVCFile()
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{
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if (fctx)
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av_close_input_file(fctx);
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}
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#endif
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60
core/lavc_file.h
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60
core/lavc_file.h
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@ -0,0 +1,60 @@
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// Copyright (c) 2005, 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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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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#pragma once
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#ifndef LAVC_FILE_H
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#define LAVC_FILE_H
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#include <ffmpeg/avcodec.h>
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#include <ffmpeg/avformat.h>
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class LAVCFile {
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private:
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unsigned refs;
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LAVCFile(wxString filename);
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~LAVCFile();
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public:
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AVFormatContext *fctx;
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static LAVCFile *Create(wxString filename) { return new LAVCFile(filename); }
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LAVCFile *AddRef() { refs++; return this; };
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void Release() { if (!--refs) delete this; };
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};
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#endif /* LAVC_FILE_H */
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@ -50,7 +50,7 @@
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LAVCVideoProvider::LAVCVideoProvider(wxString filename, wxString subfilename) {
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// Init variables
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codecContext = NULL;
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formatContext = NULL;
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lavcfile = NULL;
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codec = NULL;
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stream = NULL;
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frame = NULL;
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@ -87,24 +87,18 @@ void LAVCVideoProvider::LoadVideo(wxString filename) {
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// Close first
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Close();
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lavcfile = LAVCFile::Create(filename);
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// Load
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try {
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// Open file
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int result = 0;
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result = av_open_input_file(&formatContext,filename.mb_str(wxConvLocal),NULL,0,NULL);
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if (result != 0) throw _T("Failed opening file.");
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// Get stream info
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result = av_find_stream_info(formatContext);
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if (result < 0) throw _T("Unable to read stream info");
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// Find video stream
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vidStream = -1;
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codecContext = NULL;
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for (int i=0;i<formatContext->nb_streams;i++) {
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codecContext = formatContext->streams[i]->codec;
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for (int i=0;i<lavcfile->fctx->nb_streams;i++) {
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codecContext = lavcfile->fctx->streams[i]->codec;
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if (codecContext->codec_type == CODEC_TYPE_VIDEO) {
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stream = formatContext->streams[i];
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stream = lavcfile->fctx->streams[i];
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vidStream = i;
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break;
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}
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@ -179,8 +173,9 @@ void LAVCVideoProvider::Close() {
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codec = NULL;
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// Close format context
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if (formatContext) av_close_input_file(formatContext);
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formatContext = NULL;
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if (lavcfile)
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lavcfile->Release();
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lavcfile = NULL;
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}
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@ -198,7 +193,7 @@ void LAVCVideoProvider::UpdateDisplaySize() {
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bool LAVCVideoProvider::GetNextFrame() {
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// Read packet
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AVPacket packet;
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while (av_read_frame(formatContext, &packet)>=0) {
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while (av_read_frame(lavcfile->fctx, &packet)>=0) {
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// Check if packet is part of video stream
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if(packet.stream_index == vidStream) {
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// Decode frame
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@ -359,7 +354,7 @@ wxBitmap LAVCVideoProvider::GetFrame(int n) {
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// Constant frame rate
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else {
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seekTo = n;
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result = av_seek_frame(formatContext,vidStream,seekTo,AVSEEK_FLAG_BACKWARD);
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result = av_seek_frame(lavcfile->fctx,vidStream,seekTo,AVSEEK_FLAG_BACKWARD);
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// Seek to keyframe
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if (result == 0) {
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@ -53,6 +53,7 @@
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#include <ffmpeg/avformat.h>
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#include "video_provider.h"
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#include "mkv_wrap.h"
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#include "lavc_file.h"
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///////////////////////
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@ -61,7 +62,7 @@ class LAVCVideoProvider : public VideoProvider {
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private:
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MatroskaWrapper mkv;
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AVFormatContext *formatContext;
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LAVCFile *lavcfile;
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AVCodecContext *codecContext;
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AVStream *stream;
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AVCodec *codec;
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