102 lines
2.6 KiB
C++
102 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 "packedprocessor.h"
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#include "common/ffmpegutils.h"
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namespace olive {
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PackedProcessor::PackedProcessor() :
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swr_ctx_(nullptr)
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{
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}
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PackedProcessor::~PackedProcessor()
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{
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Close();
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}
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bool PackedProcessor::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(), false),
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params.sample_rate(),
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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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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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return true;
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}
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QByteArray PackedProcessor::Convert(SampleBufferPtr planar)
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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 QByteArray();
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}
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int nb_samples = planar->sample_count();
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if (nb_samples == 0) {
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return QByteArray();
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}
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QByteArray output(planar->audio_params().samples_to_bytes(nb_samples), Qt::Uninitialized);
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uint8_t *output_data = reinterpret_cast<uint8_t*>(output.data());
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int ret = swr_convert(swr_ctx_, &output_data, nb_samples,
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const_cast<const uint8_t**>(reinterpret_cast<uint8_t**>(planar->to_raw_ptrs())),
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nb_samples);
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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() << "Packed 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 PackedProcessor::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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