// Utils
core::field_mode get_mode(const AVFrame& frame);
-core::mutable_frame make_frame(const void* tag, const spl::shared_ptr<AVFrame>& decoded_frame, double fps, core::frame_factory& frame_factory, const core::audio_channel_layout& channel_layout);
+core::mutable_frame make_frame(const void* tag, const spl::shared_ptr<AVFrame>& decoded_frame, core::frame_factory& frame_factory, const core::audio_channel_layout& channel_layout);
spl::shared_ptr<AVFrame> make_av_frame(core::mutable_frame& frame);
spl::shared_ptr<AVFrame> make_av_frame(std::array<uint8_t*, 4> data, const core::pixel_format_desc& pix_desc);
bool is_sane_fps(AVRational time_base);
AVRational fix_time_base(AVRational time_base);
+std::shared_ptr<AVFrame> flush();
+
double read_fps(AVFormatContext& context, double fail_value);
+boost::rational<int> read_framerate(AVFormatContext& context, const boost::rational<int>& fail_value);
std::wstring print_mode(int width, int height, double fps, bool interlaced);
bool is_valid_file(const std::wstring& filename, bool only_video);
bool try_get_duration(const std::wstring filename, std::int64_t& duration, boost::rational<std::int64_t>& time_base);
-core::audio_channel_layout get_audio_channel_layout(const AVCodecContext& codec_context, const std::wstring& channel_layout_spec);
+core::audio_channel_layout get_audio_channel_layout(int num_channels, std::uint64_t layout, const std::wstring& channel_layout_spec);
// av_get_default_channel_layout does not work for layouts not predefined in ffmpeg. This is needed to support > 8 channels.
std::int64_t create_channel_layout_bitmask(int num_channels);