Revision control
Copy as Markdown
// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qffmpegavaudioformat_p.h"
#include "qaudioformat.h"
#include "qffmpegmediaformatinfo_p.h"
#include <QtCore/qdebug.h>
extern "C" {
#include <libavutil/opt.h>
}
QT_BEGIN_NAMESPACE
namespace QFFmpeg {
AVAudioFormat::AVAudioFormat(const AVCodecContext *context)
: sampleFormat(context->sample_fmt), sampleRate(context->sample_rate)
{
#if QT_FFMPEG_HAS_AV_CHANNEL_LAYOUT
channelLayout = context->ch_layout;
#else
if (context->channel_layout) {
channelLayoutMask = context->channel_layout;
} else {
const auto channelConfig =
QAudioFormat::defaultChannelConfigForChannelCount(context->channels);
channelLayoutMask = QFFmpegMediaFormatInfo::avChannelLayout(channelConfig);
}
#endif
}
AVAudioFormat::AVAudioFormat(const AVCodecParameters *codecPar)
: sampleFormat(AVSampleFormat(codecPar->format)), sampleRate(codecPar->sample_rate)
{
#if QT_FFMPEG_HAS_AV_CHANNEL_LAYOUT
channelLayout = codecPar->ch_layout;
#else
if (codecPar->channel_layout) {
channelLayoutMask = codecPar->channel_layout;
} else {
const auto channelConfig =
QAudioFormat::defaultChannelConfigForChannelCount(codecPar->channels);
channelLayoutMask = QFFmpegMediaFormatInfo::avChannelLayout(channelConfig);
}
#endif
}
AVAudioFormat::AVAudioFormat(const QAudioFormat &audioFormat)
: sampleFormat(QFFmpegMediaFormatInfo::avSampleFormat(audioFormat.sampleFormat())),
sampleRate(audioFormat.sampleRate())
{
const auto channelConfig = audioFormat.channelConfig() == QAudioFormat::ChannelConfigUnknown
? QAudioFormat::defaultChannelConfigForChannelCount(audioFormat.channelCount())
: audioFormat.channelConfig();
const auto mask = QFFmpegMediaFormatInfo::avChannelLayout(channelConfig);
#if QT_FFMPEG_HAS_AV_CHANNEL_LAYOUT
av_channel_layout_from_mask(&channelLayout, mask);
#else
channelLayoutMask = mask;
#endif
}
bool operator==(const AVAudioFormat &lhs, const AVAudioFormat &rhs)
{
return lhs.sampleFormat == rhs.sampleFormat && lhs.sampleRate == rhs.sampleRate &&
#if QT_FFMPEG_HAS_AV_CHANNEL_LAYOUT
lhs.channelLayout == rhs.channelLayout
#else
lhs.channelLayoutMask == rhs.channelLayoutMask
#endif
;
}
QDebug operator<<(QDebug dbg, const AVAudioFormat &format)
{
dbg << '[';
const char *sampleFormatName = av_get_sample_fmt_name(format.sampleFormat);
dbg << "sample format:" << (sampleFormatName ? sampleFormatName : "unknown");
dbg << ", sample rate:" << format.sampleRate;
#if QT_FFMPEG_HAS_AV_CHANNEL_LAYOUT
dbg << ", channel layout:" << format.channelLayout;
#else
dbg << "channel layout:" << Qt::bin << format.channelLayoutMask << Qt::dec;
#endif
dbg << ']';
return dbg;
}
} // namespace QFFmpeg
QT_END_NAMESPACE