add checking for successful re-sampler allocation. Add ifdefs to disable build with re-sampler.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4782 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/applications/mod_conference/mod_conference.c

@@ -4070,12 +4070,15 @@ static void conference_function(switch_core_session_t *session, char *data)
         switch_audio_resampler_t **resampler = read_codec->implementation->samples_per_second > conference->rate ? 
             &member.read_resampler : &member.mux_resampler;
 
-        switch_resample_create(resampler, 
+        if (switch_resample_create(resampler, 
                                read_codec->implementation->samples_per_second, 
                                read_codec->implementation->samples_per_second * 20, 
                                conference->rate, 
                                conference->rate * 20, 
-                               member.pool);
+							   member.pool) != SWITCH_STATUS_SUCCESS){
+            switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Unable to crete resampler!\n");
+            goto done;
+		}
 
         /* Setup an audio buffer for the resampled audio */
         if (switch_buffer_create_dynamic(&member.resample_buffer, CONF_DBLOCK_SIZE, CONF_DBUFFER_SIZE, CONF_DBUFFER_MAX) != SWITCH_STATUS_SUCCESS) {

src/switch_core.c

@@ -2174,11 +2174,15 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_frame(switch_core_sessi
 			switch (status) {
 			case SWITCH_STATUS_RESAMPLE:
 				if (!session->read_resampler) {
-					switch_resample_create(&session->read_resampler,
+					if (switch_resample_create(&session->read_resampler,
 										   read_frame->codec->implementation->samples_per_second,
 										   read_frame->codec->implementation->bytes_per_frame * 20,
 										   session->read_codec->implementation->samples_per_second,
-										   session->read_codec->implementation->bytes_per_frame * 20, session->pool);
+										   session->read_codec->implementation->bytes_per_frame * 20, session->pool) != SWITCH_STATUS_SUCCESS) {
+						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to allocate resampler\n");
+						status = SWITCH_STATUS_FALSE;
+						goto done;
+					}
 				}
 			case SWITCH_STATUS_SUCCESS:
 				session->raw_read_frame.samples = session->raw_read_frame.datalen / sizeof(int16_t);
@@ -2448,6 +2452,9 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
 													session->write_codec->implementation->samples_per_second,
 													session->write_codec->implementation->bytes_per_frame * 20,
 													session->pool);
+					if (status != SWITCH_STATUS_SUCCESS) {
+						goto done;
+					}
 				}
 				break;
 			case SWITCH_STATUS_SUCCESS:
@@ -2652,6 +2659,9 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_frame(switch_core_sess
 																	session->write_codec->implementation->samples_per_second,
 																	session->write_codec->implementation->bytes_per_frame * 20,
 																	session->pool);
+									if (status != SWITCH_STATUS_SUCCESS) {
+										goto done;
+									}
 								}
 								break;
 							case SWITCH_STATUS_SUCCESS:

src/switch_resample.c

@@ -31,7 +31,12 @@
  */
 #include <switch.h>
 #include <switch_resample.h>
+#ifndef WIN32
+#include <switch_private.h>
+#endif
+#ifndef DISABLE_RESAMPLE
 #include <libresample.h>
+#endif
 #define NORMFACT (float)0x8000
 #define MAXSAMPLE (float)0x7FFF
 #define MAXSAMPLEC (char)0x7F
@@ -52,6 +57,10 @@ SWITCH_DECLARE(switch_status_t) switch_resample_create(switch_audio_resampler_t
 													 switch_size_t from_size,
 													 int to_rate, uint32_t to_size, switch_memory_pool_t *pool)
 {
+#ifdef DISABLE_RESAMPLE
+	*new_resampler = NULL;
+	return SWITCH_STATUS_NOTIMPL;
+#else
 	switch_audio_resampler_t *resampler;
 	double lto_rate, lfrom_rate;
 
@@ -75,12 +84,16 @@ SWITCH_DECLARE(switch_status_t) switch_resample_create(switch_audio_resampler_t
 
 	*new_resampler = resampler;
 	return SWITCH_STATUS_SUCCESS;
+#endif
 }
 
 
 SWITCH_DECLARE(uint32_t) switch_resample_process(switch_audio_resampler_t *resampler, float *src, int srclen, float *dst,
 											uint32_t dstlen, int last)
 {
+#ifdef DISABLE_RESAMPLE
+	return 0;
+#else
 	int o = 0, srcused = 0, srcpos = 0, out = 0;
 
 	for (;;) {
@@ -99,11 +112,14 @@ SWITCH_DECLARE(uint32_t) switch_resample_process(switch_audio_resampler_t *resam
 		}
 	}
 	return out;
+#endif
 }
 
 SWITCH_DECLARE(void) switch_resample_destroy(switch_audio_resampler_t *resampler)
 {
+#ifndef DISABLE_RESAMPLE
 	resample_close(resampler->resampler);
+#endif
 }