RTC: Ignore empty audio packet when transcoding (#2757). v4.0.202

trunk/doc/CHANGELOG.md

@@ -8,6 +8,7 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-12-04, Merge [#2757](https://github.com/ossrs/srs/pull/2757):  RTC: Ignore empty audio packet when transcoding (#2757). v4.0.202
 * v4.0, 2021-12-01, Fix [#2762](https://github.com/ossrs/srs/pull/2762):  RTC: Refine publish security error message (#2762). v4.0.200
 * v4.0, 2021-11-25, Merge [#2751](https://github.com/ossrs/srs/pull/2751):  RTC: Fix crash when pkt->payload() if pkt is nullptr (#2751). v4.0.199
 * v4.0, 2021-11-15, For [#1708](https://github.com/ossrs/srs/pull/1708): ST: Print log when multiple thread stop one coroutine. (#1708). v4.0.198

trunk/src/app/srs_app_rtc_codec.cpp

@@ -322,16 +322,12 @@ srs_error_t SrsAudioTranscoder::decode_and_resample(SrsAudioFrame *pkt)
     dec_packet_->data = (uint8_t *)pkt->samples[0].bytes;
     dec_packet_->size = pkt->samples[0].size;
 
-    char err_buf[AV_ERROR_MAX_STRING_SIZE] = {0};
-
-
-    if (dec_packet_->data == NULL || dec_packet_->size == 0){
-        return srs_error_new(ERROR_RTC_INVALID_PARAMS, 
-                             "dec_pakcet is invalide(dec_packet_->data: %p, dec_packet_->size: %d)", 
-                             dec_packet_->data, (int) dec_packet_->size);	
+    // Ignore empty packet, see https://github.com/ossrs/srs/pull/2757#discussion_r759797651
+    if (!dec_packet_->data || !dec_packet_->size){
+        return err;
     }
 
-
+    char err_buf[AV_ERROR_MAX_STRING_SIZE] = {0};
     int error = avcodec_send_packet(dec_, dec_packet_);
     if (error < 0) {
         return srs_error_new(ERROR_RTC_RTP_MUXER, "submit to dec(%d,%s)", error,

trunk/src/core/srs_core_version4.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    201
+#define VERSION_REVISION    202
 
 #endif