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examples: Add descriptor dumping

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This commit is contained in:
Edward Hervey 2013-07-07 15:04:18 +02:00
parent 2762ead5ef
commit a4ee1abb15
1 changed files with 53 additions and 4 deletions
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57
tests/examples/mpegts/ts-parser.c
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@ -24,12 +24,59 @@
#include "config.h"
#endif
#define DUMP_DESCRIPTORS 0
#include <glib.h>
#include <glib-object.h>
#include <glib/gprintf.h>
#include <gst/gst.h>
#include <gst/mpegts/mpegts.h>
static void
gst_info_dump_mem_line (gchar * linebuf, gsize linebuf_size,
const guint8 * mem, gsize mem_offset, gsize mem_size)
{
gchar hexstr[50], ascstr[18], digitstr[4];
if (mem_size > 16)
mem_size = 16;
hexstr[0] = '\0';
ascstr[0] = '\0';
if (mem != NULL) {
guint i = 0;
mem += mem_offset;
while (i < mem_size) {
ascstr[i] = (g_ascii_isprint (mem[i])) ? mem[i] : '.';
g_snprintf (digitstr, sizeof (digitstr), "%02x ", mem[i]);
g_strlcat (hexstr, digitstr, sizeof (hexstr));
++i;
}
ascstr[i] = '\0';
}
g_snprintf (linebuf, linebuf_size, "%08x: %-48.48s %-16.16s",
(guint) mem_offset, hexstr, ascstr);
}
static void
dump_memory_content (GstMpegTsDescriptor * desc, guint spacing)
{
gsize off = 0;
while (off < desc->length) {
gchar buf[128];
/* gst_info_dump_mem_line will process 16 bytes at most */
gst_info_dump_mem_line (buf, sizeof (buf), desc->data, off + 2,
desc->length - off);
g_printf ("%*s %s\n", spacing, "", buf);
off += 16;
}
}
static const gchar *
descriptor_name (gint val)
{
@ -128,14 +175,16 @@ dump_descriptors (GPtrArray * descriptors, guint spacing)
GstMpegTsDescriptor *desc = g_ptr_array_index (descriptors, i);
g_printf ("%*s [descriptor 0x%02x (%s) length:%d]\n", spacing, "",
desc->tag, descriptor_name (desc->tag), desc->length);
if (DUMP_DESCRIPTORS)
dump_memory_content (desc, spacing + 2);
switch (desc->tag) {
case GST_MTS_DESC_REGISTRATION:
{
const guint8 *data = desc->data + 2;
#define SAFE_CHAR(a) (g_ascii_isalnum(a) ? a : '.')
g_printf ("%*s Registration : %c%c%c%c\n", spacing, "",
SAFE_CHAR (data[0]), SAFE_CHAR (data[1]),
SAFE_CHAR (data[2]), SAFE_CHAR (data[3]));
#define SAFE_CHAR(a) (g_ascii_isprint(a) ? a : '.')
g_printf ("%*s Registration : %c%c%c%c [%02x%02x%02x%02x]\n", spacing,
"", SAFE_CHAR (data[0]), SAFE_CHAR (data[1]), SAFE_CHAR (data[2]),
SAFE_CHAR (data[3]), data[0], data[1], data[2], data[3]);
break;
}