diff options
Diffstat (limited to 'dxr3interface.c')
| -rw-r--r-- | dxr3interface.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/dxr3interface.c b/dxr3interface.c index 39faadd..a5a3274 100644 --- a/dxr3interface.c +++ b/dxr3interface.c @@ -23,6 +23,7 @@ #include <assert.h> #include <math.h> #include <sys/soundcard.h> +#include <linux/dvb/audio.h> #include "dxr3interface.h" #include "dxr3syncbuffer.h" @@ -106,6 +107,7 @@ cDxr3Interface::cDxr3Interface() : m_OverlayActive = false; m_ExternalReleased = false; m_volume = 255; + m_audioChannel = AUDIO_STEREO; m_horizontal = 720; m_vertical = 576; m_audioChannelCount = UNKNOWN_CHANNEL_COUNT; @@ -1028,13 +1030,24 @@ void cDxr3Interface::ResampleVolume(short* pcmbuf, int size) { memset(pcmbuf, 0, size); } - else if (m_volume != 255) + if (m_volume < 255 || m_audioChannel != AUDIO_STEREO) { int factor = (int)pow (2.0, (double)m_volume/32 + 8.0) - 1; //int factor = (int)pow (2.0, (double)m_volume/16) - 1; for (int i = 0; i < size / (int)sizeof(short); i++) { - pcmbuf[i] = (((int)pcmbuf[i]) * factor) / 65536; + if (m_audioChannel == AUDIO_MONO_RIGHT && !(i & 0x1)) + { + pcmbuf[i] = pcmbuf[i+1]; + } + if (m_audioChannel == AUDIO_MONO_LEFT && (i & 0x1)) + { + pcmbuf[i] = pcmbuf[i-1]; + } + else if (m_volume < 255) + { + pcmbuf[i] = (((int)pcmbuf[i]) * factor) / 65536; + } } } } |