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-rw-r--r--recordmydesktop/configure.ac4
-rw-r--r--recordmydesktop/src/skeleton.c132
2 files changed, 104 insertions, 32 deletions
diff --git a/recordmydesktop/configure.ac b/recordmydesktop/configure.ac
index caf8b3e..3dba415 100644
--- a/recordmydesktop/configure.ac
+++ b/recordmydesktop/configure.ac
@@ -3,7 +3,7 @@
AC_PREREQ(2.59)
AC_INIT(src/recordmydesktop.c)
-AM_INIT_AUTOMAKE(recordmydesktop,0.3.7.1,)
+AM_INIT_AUTOMAKE(recordmydesktop,0.3.7.2,)
AC_CONFIG_SRCDIR([src/recordmydesktop.c])
AM_CONFIG_HEADER(config.h)
@@ -15,7 +15,7 @@ AM_CONFIG_HEADER(config.h)
AC_PROG_CC
AC_CANONICAL_HOST
-
+AC_C_BIGENDIAN
# Checks for header files.
AC_HEADER_DIRENT
diff --git a/recordmydesktop/src/skeleton.c b/recordmydesktop/src/skeleton.c
index 02dd6bd..078d092 100644
--- a/recordmydesktop/src/skeleton.c
+++ b/recordmydesktop/src/skeleton.c
@@ -31,20 +31,87 @@
******************************************************************************/
+/* This file depends on WORDS_BIGENDIAN being defined to 1 if the host
+ * processor stores words with the most significant byte first (like Motorola
+ * and SPARC, unlike Intel and VAX).
+ * On little endian systems, WORDS_BIGENDIAN should be undefined.
+ *
+ * When using GNU Autotools, the correct value will be written into config.h
+ * if the autoconf macro AC_C_BIGENDIAN is called in configure.ac.
+ */
+#include "config.h"
+
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ogg/ogg.h>
-#include <skeleton.h>
+#include "skeleton.h"
+
+#ifdef WIN32
+#define snprintf _snprintf
+#endif
+
+static unsigned short
+_le_16 (unsigned short s)
+{
+ unsigned short ret=s;
+#ifdef WORDS_BIGENDIAN
+ ret = (s>>8) & 0x00ffU;
+ ret += (s<<8) & 0xff00U;
+#endif
+ return ret;
+}
+
+static ogg_uint32_t
+_le_32 (ogg_uint32_t i)
+{
+ ogg_uint32_t ret=i;
+#ifdef WORDS_BIGENDIAN
+ ret = (i>>24);
+ ret += (i>>8) & 0x0000ff00;
+ ret += (i<<8) & 0x00ff0000;
+ ret += (i<<24);
+#endif
+ return ret;
+}
+
+static ogg_int64_t
+_le_64 (ogg_int64_t l)
+{
+ ogg_int64_t ret=l;
+ unsigned char *ucptr = (unsigned char *)&ret;
+#ifdef WORDS_BIGENDIAN
+ unsigned char temp;
+
+ temp = ucptr [0] ;
+ ucptr [0] = ucptr [7] ;
+ ucptr [7] = temp ;
+
+ temp = ucptr [1] ;
+ ucptr [1] = ucptr [6] ;
+ ucptr [6] = temp ;
+
+ temp = ucptr [2] ;
+ ucptr [2] = ucptr [5] ;
+ ucptr [5] = temp ;
+
+ temp = ucptr [3] ;
+ ucptr [3] = ucptr [4] ;
+ ucptr [4] = temp ;
+
+#endif
+ return (*(ogg_int64_t *)ucptr);
+}
/* write an ogg_page to a file pointer */
int write_ogg_page_to_file(ogg_page *og, FILE *out) {
int written;
written = fwrite(og->header,1, og->header_len, out);
- written += fwrite(og->body,1, og->body_len, out);
+ if (written > 0)
+ written += fwrite(og->body,1, og->body_len, out);
return written;
}
@@ -81,12 +148,12 @@ ogg_packet ogg_from_fishead(fishead_packet *fp) {
memset(op.packet, 0, FISHEAD_SIZE);
memcpy (op.packet, FISHEAD_IDENTIFIER, 8); /* identifier */
- *((ogg_uint16_t*)(op.packet+8)) = SKELETON_VERSION_MAJOR; /* version major */
- *((ogg_uint16_t*)(op.packet+10)) = SKELETON_VERSION_MINOR; /* version minor */
- *((ogg_int64_t*)(op.packet+12)) = (ogg_int64_t)fp->ptime_n; /* presentationtime numerator */
- *((ogg_int64_t*)(op.packet+20)) = (ogg_int64_t)fp->ptime_d; /* presentationtime denominator */
- *((ogg_int64_t*)(op.packet+28)) = (ogg_int64_t)fp->btime_n; /* basetime numerator */
- *((ogg_int64_t*)(op.packet+36)) = (ogg_int64_t)fp->btime_d; /* basetime denominator */
+ *((ogg_uint16_t*)(op.packet+8)) = _le_16 (SKELETON_VERSION_MAJOR); /* version major */
+ *((ogg_uint16_t*)(op.packet+10)) = _le_16 (SKELETON_VERSION_MINOR); /* version minor */
+ *((ogg_int64_t*)(op.packet+12)) = _le_64 (fp->ptime_n); /* presentationtime numerator */
+ *((ogg_int64_t*)(op.packet+20)) = _le_64 (fp->ptime_d); /* presentationtime denominator */
+ *((ogg_int64_t*)(op.packet+28)) = _le_64 (fp->btime_n); /* basetime numerator */
+ *((ogg_int64_t*)(op.packet+36)) = _le_64 (fp->btime_d); /* basetime denominator */
/* TODO: UTC time, set to zero for now */
op.b_o_s = 1; /* its the first packet of the stream */
@@ -109,13 +176,13 @@ ogg_packet ogg_from_fisbone(fisbone_packet *fp) {
op.packet = _ogg_calloc (packet_size, sizeof(unsigned char));
memset (op.packet, 0, packet_size);
memcpy (op.packet, FISBONE_IDENTIFIER, 8); /* identifier */
- *((ogg_uint32_t*)(op.packet+8)) = FISBONE_MESSAGE_HEADER_OFFSET; /* offset of the message header fields */
- *((ogg_uint32_t*)(op.packet+12)) = fp->serial_no; /* serialno of the respective stream */
- *((ogg_uint32_t*)(op.packet+16)) = fp->nr_header_packet; /* number of header packets */
- *((ogg_int64_t*)(op.packet+20)) = fp->granule_rate_n; /* granulrate numerator */
- *((ogg_int64_t*)(op.packet+28)) = fp->granule_rate_d; /* granulrate denominator */
- *((ogg_int64_t*)(op.packet+36)) = fp->start_granule; /* start granule */
- *((ogg_uint32_t*)(op.packet+44)) = fp->preroll; /* preroll, for theora its 0 */
+ *((ogg_uint32_t*)(op.packet+8)) = _le_32 (FISBONE_MESSAGE_HEADER_OFFSET); /* offset of the message header fields */
+ *((ogg_uint32_t*)(op.packet+12)) = _le_32 (fp->serial_no); /* serialno of the respective stream */
+ *((ogg_uint32_t*)(op.packet+16)) = _le_32 (fp->nr_header_packet); /* number of header packets */
+ *((ogg_int64_t*)(op.packet+20)) = _le_64 (fp->granule_rate_n); /* granulrate numerator */
+ *((ogg_int64_t*)(op.packet+28)) = _le_64 (fp->granule_rate_d); /* granulrate denominator */
+ *((ogg_int64_t*)(op.packet+36)) = _le_64 (fp->start_granule); /* start granule */
+ *((ogg_uint32_t*)(op.packet+44)) = _le_32 (fp->preroll); /* preroll, for theora its 0 */
*(op.packet+48) = fp->granule_shift; /* granule shift */
memcpy((op.packet+FISBONE_SIZE), fp->message_header_fields, fp->current_header_size);
@@ -131,15 +198,17 @@ fishead_packet fishead_from_ogg(ogg_packet *op) {
fishead_packet fp;
+ /*
if (memcmp(op->packet, FISHEAD_IDENTIFIER, 8))
- ; /* invalid packet what do we do? */
-
- fp.version_major = *((ogg_uint16_t*)(op->packet+8)); /* version major */
- fp.version_minor = *((ogg_uint16_t*)(op->packet+10)); /* version minor */
- fp.ptime_n = *((ogg_int64_t*)(op->packet+12)); /* presentationtime numerator */
- fp.ptime_d = *((ogg_int64_t*)(op->packet+20)); /* presentationtime denominator */
- fp.btime_n = *((ogg_int64_t*)(op->packet+28)); /* basetime numerator */
- fp.btime_d = *((ogg_int64_t*)(op->packet+36)); /* basetime denominator */
+ ; invalid packet what do we do?
+ */
+
+ fp.version_major = _le_16 (*((ogg_uint16_t*)(op->packet+8))); /* version major */
+ fp.version_minor = _le_16 (*((ogg_uint16_t*)(op->packet+10))); /* version minor */
+ fp.ptime_n = _le_64 (*((ogg_int64_t*)(op->packet+12))); /* presentationtime numerator */
+ fp.ptime_d = _le_64 (*((ogg_int64_t*)(op->packet+20))); /* presentationtime denominator */
+ fp.btime_n = _le_64 (*((ogg_int64_t*)(op->packet+28))); /* basetime numerator */
+ fp.btime_d = _le_64 (*((ogg_int64_t*)(op->packet+36))); /* basetime denominator */
memcpy(fp.UTC, op->packet+44, 20);
return fp;
@@ -150,14 +219,16 @@ fisbone_packet fisbone_from_ogg(ogg_packet *op) {
fisbone_packet fp;
+ /*
if (memcmp(op->packet, FISBONE_IDENTIFIER, 8))
- ; /* invalid value, what do we do? */
- fp.serial_no = *((ogg_uint32_t*)(op->packet+12)); /* serialno of the stream represented by this fisbone packet */
- fp.nr_header_packet = *((ogg_uint32_t*)(op->packet+16)); /* number of header packets */
- fp.granule_rate_n = *((ogg_int64_t*)(op->packet+20)); /* granulrate numerator */
- fp.granule_rate_d = *((ogg_int64_t*)(op->packet+28)); /* granulrate denominator */
- fp.start_granule = *((ogg_int64_t*)(op->packet+36)); /* start granule */
- fp.preroll = *((ogg_uint32_t*)(op->packet+44)); /* preroll, for theora its 0 */
+ ; invalid value, what do we do?
+ */
+ fp.serial_no = _le_32 (*((ogg_uint32_t*)(op->packet+12))); /* serialno of the stream represented by this fisbone packet */
+ fp.nr_header_packet = _le_32 (*((ogg_uint32_t*)(op->packet+16))); /* number of header packets */
+ fp.granule_rate_n = _le_64 (*((ogg_int64_t*)(op->packet+20))); /* granulrate numerator */
+ fp.granule_rate_d = _le_64 (*((ogg_int64_t*)(op->packet+28))); /* granulrate denominator */
+ fp.start_granule = _le_64 (*((ogg_int64_t*)(op->packet+36))); /* start granule */
+ fp.preroll = _le_32 (*((ogg_uint32_t*)(op->packet+44))); /* preroll, for theora its 0 */
fp.granule_shift = *(op->packet+48); /* granule shift */
fp.current_header_size = op->bytes - FISBONE_SIZE;
fp.message_header_fields = _ogg_calloc(fp.current_header_size+1, sizeof(char));
@@ -214,3 +285,4 @@ int flush_ogg_stream_to_file(ogg_stream_state *os, FILE *out) {
return 0;
}
+
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