121 lines
3.3 KiB
C++
121 lines
3.3 KiB
C++
/*
|
|
* Oak Video Editor - Non-Linear Video Editor
|
|
* Copyright (C) 2025 Olive CE Team
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef FFMPEGENCODER_H
|
|
#define FFMPEGENCODER_H
|
|
|
|
extern "C" {
|
|
#include <libavcodec/avcodec.h>
|
|
#include <libavfilter/avfilter.h>
|
|
#include <libavformat/avformat.h>
|
|
#include <libswresample/swresample.h>
|
|
#include <libavutil/opt.h>
|
|
}
|
|
|
|
#include "codec/encoder.h"
|
|
|
|
namespace olive
|
|
{
|
|
|
|
class FFmpegEncoder : public Encoder {
|
|
Q_OBJECT
|
|
public:
|
|
FFmpegEncoder(const EncodingParams ¶ms);
|
|
|
|
virtual QStringList
|
|
GetPixelFormatsForCodec(ExportCodec::Codec c) const override;
|
|
|
|
virtual std::vector<SampleFormat>
|
|
GetSampleFormatsForCodec(ExportCodec::Codec c) const override;
|
|
|
|
virtual bool Open() override;
|
|
|
|
virtual bool WriteFrame(olive::FramePtr frame,
|
|
olive::core::rational time) override;
|
|
|
|
virtual bool WriteAudio(const olive::SampleBuffer &audio) override;
|
|
|
|
bool WriteAudioData(const AudioParams &audio_params, const uint8_t **data,
|
|
int input_sample_count);
|
|
|
|
virtual bool WriteSubtitle(const SubtitleBlock *sub_block) override;
|
|
|
|
virtual void Close() override;
|
|
|
|
virtual PixelFormat GetDesiredPixelFormat() const override
|
|
{
|
|
return video_conversion_fmt_;
|
|
}
|
|
|
|
private:
|
|
/**
|
|
* @brief Handle an FFmpeg error code
|
|
*
|
|
* Uses the FFmpeg API to retrieve a descriptive string for this error code and sends it to Error(). As such, this
|
|
* function also automatically closes the Decoder.
|
|
*
|
|
* @param error_code
|
|
*/
|
|
void FFmpegError(const QString &context, int error_code);
|
|
|
|
bool WriteAVFrame(AVFrame *frame, AVCodecContext *codec_ctx,
|
|
AVStream *stream);
|
|
|
|
bool InitializeStream(enum AVMediaType type, AVStream **stream,
|
|
AVCodecContext **codec_ctx,
|
|
const ExportCodec::Codec &codec);
|
|
bool InitializeCodecContext(AVStream **stream, AVCodecContext **codec_ctx,
|
|
const AVCodec *codec);
|
|
bool SetupCodecContext(AVStream *stream, AVCodecContext *codec_ctx,
|
|
const AVCodec *codec);
|
|
|
|
void FlushEncoders();
|
|
void FlushCodecCtx(AVCodecContext *codec_ctx, AVStream *stream);
|
|
|
|
bool InitializeResampleContext(const AudioParams &audio);
|
|
|
|
static const AVCodec *GetEncoder(ExportCodec::Codec c,
|
|
SampleFormat aformat);
|
|
|
|
AVFormatContext *fmt_ctx_;
|
|
|
|
AVStream *video_stream_;
|
|
AVCodecContext *video_codec_ctx_;
|
|
AVFilterGraph *video_scale_ctx_;
|
|
AVFilterContext *video_buffersrc_ctx_;
|
|
AVFilterContext *video_buffersink_ctx_;
|
|
PixelFormat video_conversion_fmt_;
|
|
|
|
AVStream *audio_stream_;
|
|
AVCodecContext *audio_codec_ctx_;
|
|
SwrContext *audio_resample_ctx_;
|
|
AVFrame *audio_frame_;
|
|
int audio_max_samples_;
|
|
int audio_frame_offset_;
|
|
int audio_write_count_;
|
|
|
|
AVStream *subtitle_stream_;
|
|
AVCodecContext *subtitle_codec_ctx_;
|
|
|
|
bool open_;
|
|
};
|
|
|
|
}
|
|
|
|
#endif // FFMPEGENCODER_H
|