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2026-02-21 17:11:31 +09:00
commit 18b4338361
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--- a/project/fm_viewer/fav/AVEncoder.h
+++ b/project/fm_viewer/fav/AVEncoder.h
@@ -0,0 +1,106 @@
+/******************************************************************************
+    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 QAV_ENCODER_H
+#define QAV_ENCODER_H
+
+#define REMOVE_AV_ENCODER 1
+#if !(REMOVE_AV_ENCODER)
+
+#include "_fav_constants.h"
+#include "AVError.h"
+#include "Packet.h"
+#include <QtCore/QVariant>
+#include <QtCore/QObject>
+
+namespace FAV {
+class AVEncoderPrivate;
+class Q_AV_EXPORT AVEncoder : public QObject
+{
+    Q_OBJECT
+    DPTR_DECLARE_PRIVATE(AVEncoder)
+    Q_PROPERTY(int bitRate READ bitRate WRITE setBitRate NOTIFY bitRateChanged)
+    Q_PROPERTY(QString codecName READ codecName WRITE setCodecName NOTIFY codecNameChanged)
+    Q_PROPERTY(TimestampMode timestampMode READ timestampMode WRITE setTimestampMode NOTIFY timestampModeChanged)
+    Q_ENUMS(TimestampMode)
+public:
+    enum TimestampMode {
+        TimestampMonotonic,
+        TimestampCopy,
+    };
+
+    virtual ~AVEncoder();
+    virtual QString name() const = 0;
+    virtual QString description() const;
+    /*!
+     * \brief setCodecName
+     * An encoder can support more than 1 codec.
+     */
+    void setCodecName(const QString& name);
+    QString codecName() const;
+    bool open();
+    bool close();
+    bool isOpen() const;
+    virtual void flush();
+    Packet encoded() const;
+
+    /*!
+     * used by ff muxer. Be sure all parameters are set. (open?)
+     */
+    virtual void copyAVCodecContext(void* ctx);
+    void* codecContext() const; // TODO: always have a avctx like decoder?
+    /*!
+     * \brief setBitRate
+     * Higher bit rate result in better quality.
+     * Default for video: 400000, audio: 64000
+     */
+    void setBitRate(int value);
+    int bitRate() const;
+
+    TimestampMode timestampMode() const;
+    void setTimestampMode(TimestampMode value);
+    /*!
+     * \brief setOptions
+     * 1. If has key "avcodec", it's value (suboption, a hash or map) will be used to set AVCodecContext use av_opt_set and av_dict_set. A value of hash type is ignored.
+     * we can ignore the flags used in av_dict_xxx because we can use hash api.
+     * empty value does nothing to current context if it is open, but will clear AVDictionary in the next open.
+     * AVDictionary is used in avcodec_open2() and will not change unless user call setOptions().
+     * 2. Set QObject properties for AVEncoder. Use AVEncoder::name() or lower case as a key to set properties. If key not found, assume key is "avcodec"
+     * 3. If no ket AVEncoder::name() found in the option, set key-value pairs as QObject property-value pairs.
+     */
+    void setOptions(const QVariantHash &dict);
+    QVariantHash options() const;
+
+Q_SIGNALS:
+    void error(const FAV::AVError& e); //explictly use FAV::AVError in connection for Qt4 syntax
+    void codecNameChanged();
+    void bitRateChanged();
+    void timestampModeChanged(TimestampMode mode);
+protected:
+    AVEncoder(AVEncoderPrivate& d);
+    DPTR_DECLARE(AVEncoder)
+private:
+    Q_DISABLE_COPY(AVEncoder)
+    AVEncoder(); // base class, not direct create. only final class has is enough
+};
+} //namespace FAV
+#endif // QAV_ENCODER_H
+#endif // #if !(REMOVE_AV_ENCODER)