--- /dev/null
+/*
+ Copyright (C) 2024 Carl Hetherington <cth@carlh.net>
+
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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 2 of the License, or
+ (at your option) any later version.
+
+ DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "mpeg2_encoder.h"
+#include "writer.h"
+#include <dcp/ffmpeg_image.h>
+extern "C" {
+#include <libavutil/pixfmt.h>
+}
+
+
+using std::shared_ptr;
+
+
+MPEG2Encoder::MPEG2Encoder(shared_ptr<const Film> film, Writer& writer)
+ : VideoEncoder(film, writer)
+ , _transcoder(film->frame_size(), film->video_frame_rate(), film->video_bit_rate())
+{
+
+}
+
+
+void
+MPEG2Encoder::encode(shared_ptr<PlayerVideo> pv, dcpomatic::DCPTime time)
+{
+ VideoEncoder::encode(pv, time);
+
+ auto image = pv->image(
+ [](AVPixelFormat) { return AV_PIX_FMT_YUV420P; },
+ VideoRange::VIDEO,
+ false
+ );
+
+ dcp::FFmpegImage ffmpeg_image(time.get() * _film->video_frame_rate() / dcpomatic::DCPTime::HZ);
+
+ DCPOMATIC_ASSERT(image->size() == ffmpeg_image.size());
+
+ auto height = image->size().height;
+
+ for (int y = 0; y < height; ++y) {
+ memcpy(ffmpeg_image.y() + ffmpeg_image.y_stride() * y, image->data()[0] + image->stride()[0] * y, ffmpeg_image.y_stride());
+ }
+
+ for (int y = 0; y < height / 2; ++y) {
+ memcpy(ffmpeg_image.u() + ffmpeg_image.u_stride() * y, image->data()[1] + image->stride()[1] * y, ffmpeg_image.u_stride());
+ memcpy(ffmpeg_image.v() + ffmpeg_image.v_stride() * y, image->data()[2] + image->stride()[2] * y, ffmpeg_image.v_stride());
+ }
+
+ if (auto compressed = _transcoder.compress_frame(std::move(ffmpeg_image))) {
+ _writer.write(compressed->first, compressed->second);
+ }
+}
+
+
+void
+MPEG2Encoder::end()
+{
+ if (auto compressed = _transcoder.flush()) {
+ _writer.write(compressed->first, compressed->second);
+ }
+}
+