SND_CHN_MATRIX_BEGIN
if (m_in->id == m_out->id && !(m_in->id < SND_CHN_MATRIX_BEGIN ||
if (ch < feeder_matrix_maps[SND_CHN_MATRIX_BEGIN].channels ||
if (ch < feeder_matrix_maps[SND_CHN_MATRIX_BEGIN].channels ||
for (i = SND_CHN_MATRIX_BEGIN; i <= SND_CHN_MATRIX_END; i++) {
for (i = SND_CHN_MATRIX_BEGIN; i <= SND_CHN_MATRIX_END; i++) {
for (i = SND_CHN_MATRIX_BEGIN; i <= SND_CHN_MATRIX_END; i++) {
if (id < SND_CHN_MATRIX_BEGIN || id > SND_CHN_MATRIX_END)