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2026-02-21 17:11:31 +09:00
commit 18b4338361
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--- a/project/fm_viewer/fav/AVTranscoder.h
+++ b/project/fm_viewer/fav/AVTranscoder.h
@@ -0,0 +1,156 @@
+/******************************************************************************
+    QtAV:  Multimedia framework based on Qt and FFmpeg
+    Copyright (C) (2012-2016) Wang Bin <wbsecg1@gmail.com>
+
+*   This file is part of QtAV (from 2015)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+******************************************************************************/
+
+#ifndef QTAV_AVTRANSCODE_H
+#define QTAV_AVTRANSCODE_H
+
+#include "MediaIO.h"
+#include "AudioEncoder.h"
+#include "VideoEncoder.h"
+
+#if !(REMOVE_AV_ENCODER)
+
+namespace FAV {
+
+class AVPlayer;
+class Q_AV_EXPORT AVTranscoder : public QObject
+{
+    Q_OBJECT
+public:
+    AVTranscoder(QObject* parent = 0);
+    ~AVTranscoder();
+
+    // TODO: other source (more operations needed, e.g. seek)?
+    void setMediaSource(AVPlayer* player);
+    AVPlayer* sourcePlayer() const;
+
+    QString outputFile() const;
+    QIODevice* outputDevice() const;
+    MediaIO* outputMediaIO() const;
+    /*!
+     * \brief setOutputMedia
+     */
+    void setOutputMedia(const QString& fileName);
+    void setOutputMedia(QIODevice* dev);
+    void setOutputMedia(MediaIO* io);
+    /*!
+     * \brief setOutputFormat
+     * Force the output format. Useful for custom io
+     */
+    void setOutputFormat(const QString& fmt);
+    QString outputFormatForced() const;
+
+    void setOutputOptions(const QVariantHash &dict);
+    QVariantHash outputOptions() const;
+
+    /*!
+     * \brief setAsync
+     * Enable async encoding. Default is disabled.
+     */
+    void setAsync(bool value = true);
+    bool isAsync() const;
+    /*!
+     * \brief createEncoder
+     * Destroy old encoder and create a new one in filter chain. Filter has the ownership. You shall not manually open it. Transcoder will set the missing parameters open it.
+     * \param name registered encoder name, for example "FFmpeg"
+     * \return false if failed
+     */
+    bool createVideoEncoder(const QString& name = QLatin1String("FFmpeg"));
+    /*!
+     * \brief encoder
+     * Use this to set encoder properties and options.
+     * If frameRate is not set, source frame rate will be set if it's valid, otherwise VideoEncoder::defaultFrameRate() will be used internally
+     * Do not call open()/close() manually
+     * \return Encoder instance or null if createVideoEncoder failed
+     */
+    VideoEncoder* videoEncoder() const;
+    /*!
+     * \brief createEncoder
+     * Destroy old encoder and create a new one in filter chain. Filter has the ownership. You shall not manually open it. Transcoder will set the missing parameters open it.
+     * \param name registered encoder name, for example "FFmpeg"
+     * \return false if failed
+     */
+    bool createAudioEncoder(const QString& name = QLatin1String("FFmpeg"));
+    /*!
+     * \brief encoder
+     * Use this to set encoder properties and options.
+     * Do not call open()/close() manually
+     * \return Encoder instance or null if createAudioEncoder failed
+     */
+    AudioEncoder* audioEncoder() const;
+    /*!
+     * \brief isRunning
+     * \return true if encoding started
+     */
+    bool isRunning() const;
+    bool isPaused() const;
+    qint64 encodedSize() const;
+    qreal startTimestamp() const;
+    qreal encodedDuration() const;
+
+    /*!
+     * \brief startTime
+     * Start to encode after startTime(). To decode from a given time, call sourcePlayer()->setPosition()
+     */
+    qint64 startTime() const;
+    void setStartTime(qint64 ms);
+
+Q_SIGNALS:
+    void videoFrameEncoded(qreal timestamp);
+    void audioFrameEncoded(qreal timestamp);
+    void started();
+    void stopped();
+    void paused(bool value);
+    void startTimeChanged(qint64 ms);
+    void asyncChanged();
+
+public Q_SLOTS:
+    void start();
+    /*!
+     * \brief stop
+     * Call stop() to encode delayed frames remains in encoder and then stop encoding.
+     * It's called internally when sourcePlayer() is stopped
+     */
+    void stop();
+    /*!
+     * \brief pause
+     * pause the encoders
+     * \param value
+     */
+    void pause(bool value);
+
+private Q_SLOTS:
+    void onSourceStarted();
+    void prepareMuxer();
+    void writeAudio(const FAV::Packet& packet);
+    void writeVideo(const FAV::Packet& packet);
+    void tryFinish();
+
+private:
+    void stopInternal();
+    class Private;
+    QScopedPointer<Private> d;
+};
+} //namespace FAV
+#endif // QTAV_AVTRANSCODE_H
+
+#endif // #if !(REMOVE_AV_ENCODER)
+