return silence frame in dahdi codec when there is no output from the decoder

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@13265 d0543943-73ff-0310-b7d9-9358b9ac24b2

diff --git a/src/mod/codecs/mod_dahdi_codec/mod_dahdi_codec.c b/src/mod/codecs/mod_dahdi_codec/mod_dahdi_codec.c
index 33dbe59d4c691208a0f6e686b9e826013c22389f..495e00e0148f3a58b9cd9ff1a94ae4fec424d254 100644 (file)
--- a/src/mod/codecs/mod_dahdi_codec/mod_dahdi_codec.c
+++ b/src/mod/codecs/mod_dahdi_codec/mod_dahdi_codec.c
@@ -383,8 +383,11 @@ static switch_status_t switch_dahdi_decode(switch_codec_t *codec,
                return SWITCH_STATUS_FALSE;
        }
        if (0 == res) {
-               switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No output on %s decoder device.\n", transcoder_name);
-               *decoded_data_len = 0;
+               memset(dbuf_linear, 0, codec->implementation->decoded_bytes_per_packet);
+               *decoded_data_len = codec->implementation->decoded_bytes_per_packet;
+#ifdef DEBUG_DAHDI_CODEC
+               switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No output on %s decoder device, returning silence frame of %d bytes.\n", transcoder_name, *decoded_data_len);
+#endif
                return SWITCH_STATUS_SUCCESS;
        }
        res = read(context->decoding_fd, dbuf_ulaw, sizeof(dbuf_ulaw));
@@ -508,7 +511,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_dahdi_codec_load)
        int spf = 160; 
        int bpfd = 320; 
        int bpfc = 20; 
-       int fpnp = 10; 
+       int fpnp = 20; 
        switch_core_codec_add_implementation(pool,
         codec_interface,
         SWITCH_CODEC_TYPE_AUDIO,       /* enumeration defining the type of the codec */
@@ -518,7 +521,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_dahdi_codec_load)
         8000,                          /* samples transferred per second */
         8000,                          /* actual samples transferred per second */
         8000,                          /* bits transferred per second */
-        mpf,                           /* number of microseconds per frame (10ms frames) */
+        mpf,                           /* number of microseconds per frame */
         spf,                           /* number of samples per frame */
         bpfd,                          /* number of bytes per frame decompressed */
         bpfc,                          /* number of bytes per frame compressed */
@@ -544,7 +547,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_dahdi_codec_load)
         8000,                          /* samples transferred per second */
         8000,                          /* actual samples transferred per second */
         8000,                          /* bits transferred per second */
-        mpf,                           /* number of microseconds per frame (10ms frames) */
+        mpf,                           /* number of microseconds per frame */
         spf,                           /* number of samples per frame */
         bpfd,                          /* number of bytes per frame decompressed */
         bpfc,                          /* number of bytes per frame compressed */