From ea43218bcae434899bb4fe2bc741ba828479b8bd Mon Sep 17 00:00:00 2001 From: Marcelo Fernandez Date: Fri, 2 Nov 2018 13:33:20 -0300 Subject: [PATCH] Fix possible crash with VideoPlayer _mix_audio function --- scene/gui/video_player.cpp | 57 ++++++++++++-------------------------- 1 file changed, 18 insertions(+), 39 deletions(-) diff --git a/scene/gui/video_player.cpp b/scene/gui/video_player.cpp index 39e7c73390d4..812ca0042b5a 100644 --- a/scene/gui/video_player.cpp +++ b/scene/gui/video_player.cpp @@ -90,53 +90,32 @@ void VideoPlayer::_mix_audio() { AudioFrame vol = AudioFrame(volume, volume); - // Copy to server's audio buffer - switch (AudioServer::get_singleton()->get_speaker_mode()) { + int cc = AudioServer::get_singleton()->get_channel_count(); - case AudioServer::SPEAKER_MODE_STEREO: { - AudioFrame *target = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 0); + if (cc == 1) { + AudioFrame *target = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 0); + ERR_FAIL_COND(!target); - for (int j = 0; j < buffer_size; j++) { + for (int j = 0; j < buffer_size; j++) { - target[j] += buffer[j] * vol; - } - - } break; - case AudioServer::SPEAKER_SURROUND_31: { - - // FIXME: Implement - } break; - case AudioServer::SPEAKER_SURROUND_51: { - - AudioFrame *targets[2] = { - AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 1), - AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 2), - }; - - for (int j = 0; j < buffer_size; j++) { + target[j] += buffer[j] * vol; + } - AudioFrame frame = buffer[j] * vol; - targets[0][j] = frame; - targets[1][j] = frame; - } - } break; - case AudioServer::SPEAKER_SURROUND_71: { + } else { + AudioFrame *targets[4]; - AudioFrame *targets[3] = { - AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 1), - AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 2), - AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 3) - }; + for (int k = 0; k < cc; k++) { + targets[k] = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, k); + ERR_FAIL_COND(!targets[k]); + } - for (int j = 0; j < buffer_size; j++) { + for (int j = 0; j < buffer_size; j++) { - AudioFrame frame = buffer[j] * vol; - targets[0][j] += frame; - targets[1][j] += frame; - targets[2][j] += frame; + AudioFrame frame = buffer[j] * vol; + for (int k = 0; k < cc; k++) { + targets[k][j] += frame; } - - } break; + } } }