+ BOOST_CHECK_EQUAL (sound_asset->asset()->channels (), channels);
+
+ /* Sample index in the DCP */
+ int n = 0;
+ /* DCP sound asset frame */
+ int frame = 0;
+
+ while (n < sound_asset->asset()->intrinsic_duration()) {
+ shared_ptr<const dcp::SoundFrame> sound_frame = sound_asset->asset()->get_frame (frame++);
+ uint8_t const * d = sound_frame->data ();
+
+ for (int i = 0; i < sound_frame->size(); i += (3 * sound_asset->asset()->channels())) {
+
+ if (sound_asset->asset()->channels() > 0) {
+ /* L should be silent */
+ int const sample = d[i + 0] | (d[i + 1] << 8);
+ BOOST_CHECK_EQUAL (sample, 0);
+ }
+
+ if (sound_asset->asset()->channels() > 1) {
+ /* R should be silent */
+ int const sample = d[i + 2] | (d[i + 3] << 8);
+ BOOST_CHECK_EQUAL (sample, 0);
+ }
+
+ if (sound_asset->asset()->channels() > 2) {
+ /* Mono input so it will appear on centre */
+ int const sample = d[i + 7] | (d[i + 8] << 8);
+ BOOST_CHECK_EQUAL (sample, n);
+ }
+
+ if (sound_asset->asset()->channels() > 3) {
+ /* Lfe should be silent */
+ int const sample = d[i + 9] | (d[i + 10] << 8);
+ BOOST_CHECK_EQUAL (sample, 0);
+ }
+
+ if (sound_asset->asset()->channels() > 4) {
+ /* Ls should be silent */
+ int const sample = d[i + 11] | (d[i + 12] << 8);
+ BOOST_CHECK_EQUAL (sample, 0);
+ }
+
+
+ if (sound_asset->asset()->channels() > 5) {
+ /* Rs should be silent */
+ int const sample = d[i + 13] | (d[i + 14] << 8);
+ BOOST_CHECK_EQUAL (sample, 0);
+ }
+
+ ++n;
+ }
+ }
+