[libdvbpsi-devel] examples/dump_pids.c:

[Jean-Paul Saman]

libdvbpsi | branch: master | Jean-Paul Saman <jpsaman at videolan.org> | Mon Jan 27 17:14:33 2014 +0100| [dd34b12fc8494282ca6c91807f8d8304d9f1ebba] | committer: Jean-Paul Saman

examples/dump_pids.c:

Dump packet nr, PID and CC to stdout.

> http://git.videolan.org/gitweb.cgi/libdvbpsi.git/?a=commit;h=dd34b12fc8494282ca6c91807f8d8304d9f1ebba
---

 examples/Makefile.am |    6 +++++-
 examples/dump_pids.c |   57 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/examples/Makefile.am b/examples/Makefile.am
index 02621e6..7f6c294 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -3,7 +3,11 @@
 SUBDIRS = dvbinfo
 DIST_SUBDIRS = $(SUBDIRS)
 
-noinst_PROGRAMS = decode_pat decode_pmt get_pcr_pid decode_sdt decode_mpeg decode_bat
+noinst_PROGRAMS = decode_pat decode_pmt get_pcr_pid decode_sdt decode_mpeg decode_bat dump_pids
+
+dump_pids_SOURCES = dump_pids.c
+dump_pids_CPPFLAGS =
+dump_pids_LDFLAGS =
 
 decode_pat_SOURCES = decode_pat.c
 decode_pat_CPPFLAGS = -DDVBPSI_DIST
diff --git a/examples/dump_pids.c b/examples/dump_pids.c
new file mode 100644
index 0000000..cd40215
--- /dev/null
+++ b/examples/dump_pids.c
@@ -0,0 +1,57 @@
+#include "config.h"
+
+#if defined(HAVE_INTTYPES_H)
+#   include <inttypes.h>
+#elif defined(HAVE_STDINT_H)
+#   include <stdint.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <assert.h>
+
+static inline uint32_t ts_getcc(uint8_t *packet)
+{
+    return (packet[3] & 0x0f);
+}
+
+static inline uint32_t ts_getpid(uint8_t *packet)
+{
+    assert(packet[0] == 0x47);
+    return ((uint16_t)(packet[1] & 0x1f) << 8) + packet[2];
+}
+
+int main(int argc, char *argv[])
+{
+    int file = open(argv[1], O_RDONLY | O_NONBLOCK);
+    if (file < 0) {
+        perror(argv[1]);
+        printf("error opening %s\n", argv[1]);
+        return -1;
+    }
+
+    int32_t s = 188; /* COULD ALSO BE 192 */
+    uint8_t p[188] = { 0 };
+    int64_t n = 0;
+    size_t  len = 0;
+    for (;;) {
+
+        /* slow read */
+        len = read(file, &p[0], s);
+        if (len == 0)
+            break;
+        uint32_t pid = ts_getpid(&p[0]);
+        uint32_t cc  = ts_getcc(&p[0]);
+        n++;
+        printf("packet %ld, pid %u, cc %d\n", n, pid, cc );
+    }
+
+    close(file);
+    return 0;
+}