82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
/*
|
|
* Copyright 2003-2020 The Music Player Daemon Project
|
|
* http://www.musicpd.org
|
|
*
|
|
* 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, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef MPD_FFMPEG_FORMAT_HXX
|
|
#define MPD_FFMPEG_FORMAT_HXX
|
|
|
|
#include "Error.hxx"
|
|
|
|
extern "C" {
|
|
#include <libavformat/avformat.h>
|
|
}
|
|
|
|
#include <new>
|
|
|
|
namespace Ffmpeg {
|
|
|
|
class FormatContext {
|
|
AVFormatContext *format_context = nullptr;
|
|
|
|
public:
|
|
FormatContext() = default;
|
|
|
|
explicit FormatContext(AVIOContext *pb)
|
|
:format_context(avformat_alloc_context())
|
|
{
|
|
if (format_context == nullptr)
|
|
throw std::bad_alloc();
|
|
|
|
format_context->pb = pb;
|
|
}
|
|
|
|
~FormatContext() noexcept {
|
|
if (format_context != nullptr)
|
|
avformat_close_input(&format_context);
|
|
}
|
|
|
|
FormatContext(FormatContext &&src) noexcept
|
|
:format_context(std::exchange(src.format_context, nullptr)) {}
|
|
|
|
FormatContext &operator=(FormatContext &&src) noexcept {
|
|
using std::swap;
|
|
swap(format_context, src.format_context);
|
|
return *this;
|
|
}
|
|
|
|
void OpenInput(const char *url, AVInputFormat *fmt,
|
|
AVDictionary **options) {
|
|
int err = avformat_open_input(&format_context, url, fmt,
|
|
options);
|
|
if (err < 0)
|
|
throw MakeFfmpegError(err, "avformat_open_input() failed");
|
|
}
|
|
|
|
AVFormatContext &operator*() noexcept {
|
|
return *format_context;
|
|
}
|
|
|
|
AVFormatContext *operator->() noexcept {
|
|
return format_context;
|
|
}
|
|
};
|
|
|
|
} // namespace Ffmpeg
|
|
|
|
#endif
|