105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "planarprocessor.h"
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#include "common/ffmpegutils.h"
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namespace olive {
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PlanarProcessor::PlanarProcessor() :
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swr_ctx_(nullptr)
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{
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}
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PlanarProcessor::~PlanarProcessor()
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{
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Close();
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}
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bool PlanarProcessor::Open(const AudioParams ¶ms)
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{
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if (IsOpen()) {
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return true;
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}
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swr_ctx_ = swr_alloc_set_opts(nullptr,
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params.channel_layout(),
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FFmpegUtils::GetFFmpegSampleFormat(params.format(), true),
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params.sample_rate(),
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params.channel_layout(),
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FFmpegUtils::GetFFmpegSampleFormat(params.format(), false),
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params.sample_rate(),
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0,
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nullptr);
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if (!swr_ctx_) {
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qCritical() << "Failed to allocate resample context";
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return false;
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}
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if (swr_init(swr_ctx_) < 0) {
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qCritical() << "Failed to init resample context";
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swr_free(&swr_ctx_);
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return false;
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}
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params_ = params;
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return true;
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}
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SampleBufferPtr PlanarProcessor::Convert(const QByteArray &packed)
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{
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if (!IsOpen()) {
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qCritical() << "Tried to convert while closed";
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return nullptr;
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}
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if (packed.isEmpty()) {
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return nullptr;
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}
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int nb_samples_per_channel = params_.bytes_to_samples(packed.size());
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SampleBufferPtr output = SampleBuffer::CreateAllocated(params_, nb_samples_per_channel);
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const uint8_t *input = reinterpret_cast<const uint8_t*>(packed.constData());
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int ret = swr_convert(swr_ctx_,
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reinterpret_cast<uint8_t**>(output->to_raw_ptrs()), nb_samples_per_channel,
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&input, nb_samples_per_channel);
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if (ret < 0) {
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char buf[200];
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av_strerror(ret, buf, 200);
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qDebug() << "Planar processor failed with error:" << buf << ret;
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}
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return output;
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}
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void PlanarProcessor::Close()
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{
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if (swr_ctx_) {
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swr_free(&swr_ctx_);
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}
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}
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}
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