99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "media/streaming/media_streaming_common.h"
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#include "ffmpeg/ffmpeg_utility.h"
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namespace Media {
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namespace Streaming {
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struct TimePoint {
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crl::time trackTime = kTimeUnknown;
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crl::time worldTime = kTimeUnknown;
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bool valid() const {
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return (trackTime != kTimeUnknown) && (worldTime != kTimeUnknown);
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}
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explicit operator bool() const {
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return valid();
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}
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};
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struct Stream {
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int index = -1;
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crl::time duration = kTimeUnknown;
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AVRational timeBase = FFmpeg::kUniversalTimeBase;
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FFmpeg::CodecPointer codec;
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FFmpeg::FramePointer decodedFrame;
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FFmpeg::FramePointer transferredFrame;
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std::deque<FFmpeg::Packet> queue;
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int invalidDataPackets = 0;
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// Audio only.
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int frequency = 0;
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// Video only.
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int rotation = 0;
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AVRational aspect = FFmpeg::kNormalAspect;
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FFmpeg::SwscalePointer swscale;
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};
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[[nodiscard]] crl::time FramePosition(const Stream &stream);
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[[nodiscard]] FFmpeg::AvErrorWrap ProcessPacket(
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Stream &stream,
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FFmpeg::Packet &&packet);
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[[nodiscard]] FFmpeg::AvErrorWrap ReadNextFrame(Stream &stream);
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[[nodiscard]] bool GoodForRequest(
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const QImage &image,
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bool hasAlpha,
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int rotation,
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const FrameRequest &request);
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[[nodiscard]] bool TransferFrame(
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Stream &stream,
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not_null<AVFrame*> decodedFrame,
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not_null<AVFrame*> transferredFrame);
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[[nodiscard]] QImage ConvertFrame(
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Stream &stream,
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not_null<AVFrame*> frame,
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QSize resize,
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QImage storage);
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[[nodiscard]] FrameYUV ExtractYUV(Stream &stream, AVFrame *frame);
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struct ExpandDecision {
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QSize result;
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bool expanding = false;
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};
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[[nodiscard]] ExpandDecision DecideFrameResize(
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QSize outer,
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QSize original,
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int minVisibleNominator = 3, // If we cut out no more than 0.25 of
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int minVisibleDenominator = 4); // the original, let's expand.
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[[nodiscard]] bool FrameResizeMayExpand(
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QSize outer,
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QSize original,
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int minVisibleNominator = 3,
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int minVisibleDenominator = 4);
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[[nodiscard]] ExpandDecision DecideVideoFrameResize(
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QSize outer,
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QSize original);
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[[nodiscard]] QSize CalculateResizeFromOuter(QSize outer, QSize original);
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[[nodiscard]] QImage PrepareBlurredBackground(QSize outer, QImage frame);
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void FillBlurredBackground(QPainter &p, QSize outer, QImage bg);
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[[nodiscard]] QImage PrepareByRequest(
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const QImage &original,
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bool hasAlpha,
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const AVRational &aspect,
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int rotation,
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const FrameRequest &request,
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QImage storage);
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} // namespace Streaming
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} // namespace Media
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