Krypton always uses a 32K input buffer; adjust it to match chunk size

pvr.hdhomerundvr/changelog.txt

@@ -1,4 +1,4 @@
-v3.0.1 (2020.12.xx)
+v3.1.0 (2020.12.23)
   - Revert cURL library to version 7.66.0
   - Fix bug causing recordings update to trigger twice when "Trigger recording discovery immediately after playback" is enabled
   - Add 5-second delay to application of "Trigger recording discovery immediately after playback" to limit during channel changes

src/pvr.cpp

@@ -4326,6 +4326,10 @@ int ReadLiveStream(unsigned char* buffer, unsigned int size)
 {
 	if(!g_pvrstream) return -1;
 
+	// Krypton doesn't request the stream chunk size and instead always uses
+	// a 32K buffer; align the requested buffer down to match the stream
+	size = std::min(size, static_cast<unsigned int>(g_pvrstream->chunksize()));
+
 	try { 
 
 		// Attempt to read the requested number of bytes from the stream
@@ -4563,6 +4567,10 @@ void CloseRecordedStream(void)
 
 int ReadRecordedStream(unsigned char* buffer, unsigned int size)
 {
+	// Krypton doesn't request the stream chunk size and instead always uses
+	// a 32K buffer; align the requested buffer down to match the stream
+	size = std::min(size, static_cast<unsigned int>(g_pvrstream->chunksize()));
+
 	try { return (g_pvrstream) ? static_cast<int>(g_pvrstream->read(buffer, size)) : -1; }
 
 	catch(std::exception& ex) {

src/version.ini

@@ -8,4 +8,4 @@
 Company=Michael G. Brehm
 Copyright=
 Product=zuki.pvr.hdhomerundvr
-Version=3.0.1
+Version=3.1.0