Compile errors/warnings for obsolete IDF release

Author: pschatzmann

examples/examples-communication/rtsp/communication-min-rtsp/AudioTestSource.h

@@ -18,10 +18,12 @@
 #endif
 
 /// support for 64 bytes
+#ifndef htonll
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #  define htonll(x) ((1==htonl(1)) ? (x) : ((uint64_t)htonl((x) & 0xFFFFFFFF) << 32) | htonl((x) >> 32))
 #  define ntohll(x) ((1==ntohl(1)) ? (x) : ((uint64_t)ntohl((x) & 0xFFFFFFFF) << 32) | ntohl((x) >> 32))
 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 #  define htonll(x) x
 #  define ntohll(x) x
 #endif
+#endif

examples/examples-communication/rtsp/communication-min-rtsp/communication-min-rtsp.ino

@@ -368,7 +368,11 @@ class I2SDriverESP32V1 {
     }
 
     i2s_pdm_tx_clk_config_t getTxClockConfig(I2SConfigESP32V1 &cfg) {
+#if defined(I2S_PDM_TX_CLK_DAC_DEFAULT_CONFIG)
       return I2S_PDM_TX_CLK_DAC_DEFAULT_CONFIG((uint32_t)cfg.sample_rate);
+#else
+      return I2S_PDM_TX_CLK_DEFAULT_CONFIG((uint32_t)cfg.sample_rate);
+#endif
     }
 
     bool startTX(I2SConfigESP32V1 &cfg, i2s_chan_handle_t &tx_chan, int txPin) {

src/AudioTools/CoreAudio/AudioBasic/Net.h

@@ -8,7 +8,9 @@
 #if defined(USE_TIMER)
 #include "AudioTools/CoreAudio/AudioTimer/AudioTimerAVR.h"
 #include "AudioTools/CoreAudio/AudioTimer/AudioTimerBase.h"
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
 #include "AudioTools/CoreAudio/AudioTimer/AudioTimerESP32.h"
+#endif
 #include "AudioTools/CoreAudio/AudioTimer/AudioTimerESP32Legacy.h"
 #include "AudioTools/CoreAudio/AudioTimer/AudioTimerESP8266.h"
 #include "AudioTools/CoreAudio/AudioTimer/AudioTimerMBED.h"

src/AudioTools/CoreAudio/AudioI2S/I2SESP32V1.h

@@ -326,6 +326,11 @@ class TimerAlarmRepeatingDriverESP32Legacy : public TimerAlarmRepeatingDriverBas
   }
 };
 
+#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(5, 0, 0)
+/// @brief  use TimerAlarmRepeating!  @ingroup timer_esp32
+using TimerAlarmRepeatingDriver = TimerAlarmRepeatingDriverESP32Legacy;
+#endif
+
 }  // namespace audio_tools
 
 #endif