input modules: Increase chunk size to 4MB for all modules.

This reduces overhead and can slightly increase performance, depending
on the module.

src/input/chronovu_la8.c

@@ -29,7 +29,7 @@
 
 #define DEFAULT_NUM_CHANNELS    8
 #define DEFAULT_SAMPLERATE      SR_MHZ(100)
-#define CHUNK_SIZE              (4 * 1024)
+#define CHUNK_SIZE              (4 * 1024 * 1024)
 #define CHRONOVU_LA8_FILESIZE   ((8 * 1024 * 1024) + 5)
 
 struct context {

src/input/csv.c

@@ -26,7 +26,7 @@
 
 #define LOG_PREFIX "input/csv"
 
-#define CHUNK_SIZE	(128 * 1024)
+#define CHUNK_SIZE	(4 * 1024 * 1024)
 
 /*
  * The CSV input module has the following options:

src/input/raw_analog.c

@@ -31,7 +31,7 @@
 #define LOG_PREFIX "input/raw_analog"
 
 /* How many bytes at a time to process and send to the session bus. */
-#define CHUNK_SIZE		4096
+#define CHUNK_SIZE		(4 * 1024 * 1024)
 #define DEFAULT_NUM_CHANNELS	1
 #define DEFAULT_SAMPLERATE	0
 

src/input/trace32_ad.c

@@ -45,7 +45,7 @@
 
 #define LOG_PREFIX "input/trace32_ad"
 
-#define CHUNK_SIZE        10240
+#define CHUNK_SIZE        (4 * 1024 * 1024)
 #define MAX_POD_COUNT     12
 #define HEADER_SIZE       80
 

src/input/vcd.c

@@ -67,7 +67,7 @@
 
 #define LOG_PREFIX "input/vcd"
 
-#define CHUNK_SIZE (1024 * 1024)
+#define CHUNK_SIZE (4 * 1024 * 1024)
 
 struct context {
 	gboolean started;

src/input/wav.c

@@ -31,7 +31,7 @@
 #define LOG_PREFIX "input/wav"
 
 /* How many bytes at a time to process and send to the session bus. */
-#define CHUNK_SIZE               4096
+#define CHUNK_SIZE               (1 * 1024 * 1024 * sizeof(float))
 
 /* Minimum size of header + 1 8-bit mono PCM sample. */
 #define MIN_DATA_CHUNK_OFFSET    45