71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file ffmpegVirtualFile.h
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* @author jyelon
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* @date 2007-08-01
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*/
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#ifndef FFMPEGVIRTUALFILE_H
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#define FFMPEGVIRTUALFILE_H
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#include "pandabase.h"
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#include "config_movies.h"
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#include "filename.h"
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#include "subfileInfo.h"
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#include <stdarg.h>
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extern "C" {
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#include <libavformat/avio.h>
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}
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struct URLContext;
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struct AVFormatContext;
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/**
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* Enables ffmpeg to access panda's VFS. Create an instance of the
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* FfmpegVirtualFile for each ffmpeg stream you wish to open.
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*/
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class EXPCL_FFMPEG FfmpegVirtualFile {
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public:
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FfmpegVirtualFile();
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FfmpegVirtualFile(const FfmpegVirtualFile ©) = delete;
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~FfmpegVirtualFile();
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FfmpegVirtualFile &operator = (const FfmpegVirtualFile ©) = delete;
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bool open_vfs(const Filename &filename);
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bool open_subfile(const SubfileInfo &info);
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void close();
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INLINE bool is_open() const;
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INLINE AVFormatContext *get_format_context() const;
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static void register_protocol();
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private:
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// These are callbacks passed to ffmpeg and cannot change signature.
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static int read_packet(void *opaque, uint8_t *buf, int buf_size);
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static int64_t seek(void *opaque, int64_t offset, int whence);
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static void log_callback(void *ptr, int level, const char *fmt, va_list v1);
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private:
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AVIOContext *_io_context;
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AVFormatContext *_format_context;
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std::streampos _start;
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std::streamsize _size;
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std::istream *_in;
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pifstream _file_in;
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bool _owns_in;
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int _buffer_size;
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};
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#include "ffmpegVirtualFile.I"
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#endif // FFMPEGVIRTUALFILE_H
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