66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#ifndef MPD_FFMPEG_FORMAT_HXX
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#define MPD_FFMPEG_FORMAT_HXX
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#include "Error.hxx"
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extern "C" {
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#include <libavformat/avformat.h>
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}
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#include <new>
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namespace Ffmpeg {
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class FormatContext {
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AVFormatContext *format_context = nullptr;
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public:
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FormatContext() = default;
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explicit FormatContext(AVIOContext *pb)
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:format_context(avformat_alloc_context())
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{
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if (format_context == nullptr)
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throw std::bad_alloc();
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format_context->pb = pb;
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}
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~FormatContext() noexcept {
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if (format_context != nullptr)
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avformat_close_input(&format_context);
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}
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FormatContext(FormatContext &&src) noexcept
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:format_context(std::exchange(src.format_context, nullptr)) {}
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FormatContext &operator=(FormatContext &&src) noexcept {
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using std::swap;
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swap(format_context, src.format_context);
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return *this;
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}
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void OpenInput(const char *url, AVInputFormat *fmt,
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AVDictionary **options) {
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int err = avformat_open_input(&format_context, url, fmt,
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options);
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if (err < 0)
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throw MakeFfmpegError(err, "avformat_open_input() failed");
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}
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AVFormatContext &operator*() noexcept {
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return *format_context;
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}
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AVFormatContext *operator->() noexcept {
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return format_context;
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}
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};
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} // namespace Ffmpeg
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#endif
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