Add options to configure audio input format (code was already there ... all it...

Add options to configure audio input format (code was already there ... all it lacked was the options).

modules/access/dshow/dshow.cpp

@@ -160,6 +160,18 @@ static const char *const ppsz_amtuner_mode_text[] = { N_("Default"),
 #define AMTUNER_MODE_LONGTEXT N_( \
     "AM Tuner mode. Can be one of DEFAULT, TV, AM_RADIO, FM_RADIO or DSS.")
 
+#define AUDIO_CHANNELS_TEXT N_("Number of audio channels")
+#define AUDIO_CHANNELS_LONGTEXT N_( \
+    "Select audio input format with the given number of audio channesl (if non 0)" )
+
+#define AUDIO_SAMPLERATE_TEXT N_("Audio sample rate")
+#define AUDIO_SAMPLERATE_LONGTEXT N_( \
+    "Select audio input format with the given sample rate (if non 0)" )
+
+#define AUDIO_BITSPERSAMPLE_TEXT N_("Audio bits per sample")
+#define AUDIO_BITSPERSAMPLE_LONGTEXT N_( \
+    "Select audio input format with the given bits/sample (if non 0)" )
+
 static int  CommonOpen ( vlc_object_t *, access_sys_t *, bool );
 static void CommonClose( vlc_object_t *, access_sys_t * );
 
@@ -227,6 +239,13 @@ vlc_module_begin();
                 AMTUNER_MODE_TEXT, AMTUNER_MODE_LONGTEXT, false);
         change_integer_list( pi_amtuner_mode, ppsz_amtuner_mode_text, 0 );
 
+    add_integer( "dshow-audio-channels", 0, NULL, AUDIO_CHANNELS_TEXT,
+                 AUDIO_CHANNELS_LONGTEXT, true );
+    add_integer( "dshow-audio-samplerate", 0, NULL, AUDIO_SAMPLERATE_TEXT,
+                 AUDIO_SAMPLERATE_LONGTEXT, true );
+    add_integer( "dshow-audio-bitspersample", 0, NULL, AUDIO_BITPERSAMPLE_TEXT,
+                 AUDIO_BITSPERSAMPLE_LONGTEST, true );
+
     add_shortcut( "dshow" );
     set_capability( "access_demux", 0 );
     set_callbacks( DemuxOpen, DemuxClose );
@@ -909,7 +928,10 @@ static int OpenDevice( vlc_object_t *p_this, access_sys_t *p_sys,
     size_t media_count =
         EnumDeviceCaps( p_this, p_device_filter, b_audio ? 0 : p_sys->i_chroma,
                         p_sys->i_width, p_sys->i_height,
-                        0, 0, 0, media_types, MAX_MEDIA_TYPES );
+      b_audio ? var_CreateGetInteger( p_this, "dshow-audio-channels" ) : 0,
+      b_audio ? var_CreateGetInteger( p_this, "dshow-audio-samplerate" ) : 0,
+      b_audio ? var_CreateGetInteger( p_this, "dshow-audio-bitspersample" ) : 0,
+      media_types, MAX_MEDIA_TYPES );
 
     AM_MEDIA_TYPE *mt = NULL;