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add non-blocking reads to mod_sangoma_codec

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This commit is contained in:
Moises Silva 2010-08-13 13:37:50 -04:00
parent aa0751366a
commit bfe2f22b38
1 changed files with 51 additions and 37 deletions
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88
src/mod/codecs/mod_sangoma_codec/mod_sangoma_codec.c
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@ -126,6 +126,9 @@ struct codec_data {
long lastrxseqno; long lastrxseqno;
unsigned long rxlost; unsigned long rxlost;
/* discarded silence packets */
unsigned long rxdiscarded;
/* avg Rx time */ /* avg Rx time */
switch_time_t avgrxus; switch_time_t avgrxus;
switch_time_t last_rx_time; switch_time_t last_rx_time;
@ -400,26 +403,31 @@ static switch_status_t switch_sangoma_encode(switch_codec_t *codec, switch_codec
sess->encoder.tx++; sess->encoder.tx++;
/* do the reading */ /* do the reading */
memset(&encoded_frame, 0, sizeof(encoded_frame)); for ( ; ; ) {
sres = switch_rtp_zerocopy_read_frame(sess->encoder.rxrtp, &encoded_frame, SWITCH_IO_FLAG_NOBLOCK); sres = switch_rtp_zerocopy_read_frame(sess->encoder.rxrtp, &encoded_frame, SWITCH_IO_FLAG_NOBLOCK);
if (sres == SWITCH_STATUS_GENERR) { if (sres == SWITCH_STATUS_GENERR) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to read on Sangoma encoder RTP session: %d\n", sres); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to read on Sangoma encoder RTP session: %d\n", sres);
return SWITCH_STATUS_FALSE; return SWITCH_STATUS_FALSE;
} }
if (0 == encoded_frame.datalen) { if (0 == encoded_frame.datalen) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No output on Sangoma encoder RTP session.\n"); break;
return SWITCH_STATUS_SUCCESS; }
}
if (encoded_frame.payload != codec->implementation->ianacode if (encoded_frame.payload != codec->implementation->ianacode
&& encoded_frame.payload != IANACODE_CN) { && encoded_frame.payload != IANACODE_CN) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Read unexpected payload %d in Sangoma encoder RTP session, expecting %d\n", switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Read unexpected payload %d in Sangoma encoder RTP session, expecting %d\n",
encoded_frame.payload, codec->implementation->ianacode); encoded_frame.payload, codec->implementation->ianacode);
return SWITCH_STATUS_FALSE; break;
}
if (*encoded_data_len) {
sess->encoder.rxdiscarded++;
}
memcpy(encoded_data, encoded_frame.data, encoded_frame.datalen);
*encoded_data_len = encoded_frame.datalen;
} }
memcpy(encoded_data, encoded_frame.data, encoded_frame.datalen);
*encoded_data_len = encoded_frame.datalen;
/* update encoding stats */ /* update encoding stats */
sess->encoder.rx++; sess->encoder.rx++;
@ -513,30 +521,34 @@ static switch_status_t switch_sangoma_decode(switch_codec_t *codec, /* codec ses
sess->decoder.tx++; sess->decoder.tx++;
/* do the reading */ /* do the reading */
memset(&ulaw_frame, 0, sizeof(ulaw_frame)); for ( ; ; ) {
sres = switch_rtp_zerocopy_read_frame(sess->decoder.rxrtp, &ulaw_frame, SWITCH_IO_FLAG_NOBLOCK); sres = switch_rtp_zerocopy_read_frame(sess->decoder.rxrtp, &ulaw_frame, SWITCH_IO_FLAG_NOBLOCK);
if (sres == SWITCH_STATUS_GENERR) { if (sres == SWITCH_STATUS_GENERR) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to read on Sangoma decoder RTP session: %d\n", sres); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to read on Sangoma decoder RTP session: %d\n", sres);
return SWITCH_STATUS_FALSE; return SWITCH_STATUS_FALSE;
} }
if (0 == ulaw_frame.datalen) { if (0 == ulaw_frame.datalen) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No output on Sangoma decoder RTP session.\n"); break;
return SWITCH_STATUS_SUCCESS; }
}
if (ulaw_frame.payload != IANA_ULAW if (ulaw_frame.payload != IANA_ULAW
&& ulaw_frame.payload != IANACODE_CN) { && ulaw_frame.payload != IANACODE_CN) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Read unexpected payload %d in Sangoma decoder RTP session, expecting %d\n", switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Read unexpected payload %d in Sangoma decoder RTP session, expecting %d\n",
ulaw_frame.payload, IANA_ULAW); ulaw_frame.payload, IANA_ULAW);
return SWITCH_STATUS_FALSE; break;
} }
/* transcode to linear */ if (*decoded_data_len) {
for (i = 0; i < ulaw_frame.datalen; i++) { sess->decoder.rxdiscarded++;
dbuf_linear[i] = ulaw_to_linear(((char *)ulaw_frame.data)[i]); }
/* transcode to linear */
for (i = 0; i < ulaw_frame.datalen; i++) {
dbuf_linear[i] = ulaw_to_linear(((char *)ulaw_frame.data)[i]);
}
*decoded_data_len = i * 2;
} }
*decoded_data_len = i * 2;
/* update decoding stats */ /* update decoding stats */
sess->decoder.rx++; sess->decoder.rx++;
@ -708,6 +720,7 @@ SWITCH_STANDARD_API(sangoma_function)
if (sess->encoder.rxrtp) { if (sess->encoder.rxrtp) {
stats = switch_rtp_get_stats(sess->encoder.rxrtp, NULL); stats = switch_rtp_get_stats(sess->encoder.rxrtp, NULL);
stream->write_function(stream, "-- Encoder Inbound Stats --\n"); stream->write_function(stream, "-- Encoder Inbound Stats --\n");
stream->write_function(stream, "Rx Discarded: %lu\n", sess->encoder.rxdiscarded);
sangoma_print_stats(stream, &stats->inbound); sangoma_print_stats(stream, &stats->inbound);
@ -719,6 +732,7 @@ SWITCH_STANDARD_API(sangoma_function)
if (sess->decoder.rxrtp) { if (sess->decoder.rxrtp) {
stats = switch_rtp_get_stats(sess->decoder.rxrtp, NULL); stats = switch_rtp_get_stats(sess->decoder.rxrtp, NULL);
stream->write_function(stream, "-- Decoder Inbound Stats --\n"); stream->write_function(stream, "-- Decoder Inbound Stats --\n");
stream->write_function(stream, "Rx Discarded: %lu\n", sess->decoder.rxdiscarded);
sangoma_print_stats(stream, &stats->inbound); sangoma_print_stats(stream, &stats->inbound);
stats = switch_rtp_get_stats(sess->decoder.txrtp, NULL); stats = switch_rtp_get_stats(sess->decoder.txrtp, NULL);