From 8a1f20c5c51c3e229aab3647be5965602bd59d30 Mon Sep 17 00:00:00 2001 From: Thomas Vander Stichele Date: Wed, 19 May 2004 17:22:53 +0000 Subject: [PATCH] Original commit message from CVS: use GST macros; add asserts --- gst/gdp/dataprotocol.c | 97 +++++++++++++++++++++++++------------------------- gst/gdp/dp-private.h | 19 ++++------ 2 files changed, 56 insertions(+), 60 deletions(-) diff --git a/gst/gdp/dataprotocol.c b/gst/gdp/dataprotocol.c index cabba42..85c798e 100644 --- a/gst/gdp/dataprotocol.c +++ b/gst/gdp/dataprotocol.c @@ -34,12 +34,6 @@ GST_DEBUG_CATEGORY (data_protocol_debug); #define GST_CAT_DEFAULT data_protocol_debug -/*** private functions ***/ - -#define GST_DP_WRITE_GUINT64(buf, value) (*((guint64 *) (buf)) = GUINT64_TO_BE (value)) -#define GST_DP_WRITE_GUINT32(buf, value) (*((guint32 *) (buf)) = GUINT32_TO_BE (value)) -#define GST_DP_WRITE_GUINT16(buf, value) (*((guint16 *) (buf)) = GUINT16_TO_BE (value)) - /* calculate a CCITT 16 bit CRC check value for a given byte array */ /* * this code snippet is adapted from a web page I found @@ -172,6 +166,7 @@ gst_dp_header_from_buffer (const GstBuffer * buffer, GstDPHeaderFlag flags, g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE); g_return_val_if_fail (GST_BUFFER_REFCOUNT_VALUE (buffer) > 0, FALSE); + g_return_val_if_fail (header, FALSE); *length = GST_DP_HEADER_LENGTH; h = g_malloc (GST_DP_HEADER_LENGTH); @@ -183,15 +178,15 @@ gst_dp_header_from_buffer (const GstBuffer * buffer, GstDPHeaderFlag flags, h[3] = GST_DP_PAYLOAD_BUFFER; /* buffer properties */ - GST_DP_WRITE_GUINT32 (h + 4, GST_BUFFER_SIZE (buffer)); - GST_DP_WRITE_GUINT64 (h + 8, GST_BUFFER_TIMESTAMP (buffer)); - GST_DP_WRITE_GUINT64 (h + 16, GST_BUFFER_DURATION (buffer)); - GST_DP_WRITE_GUINT64 (h + 24, GST_BUFFER_OFFSET (buffer)); - GST_DP_WRITE_GUINT64 (h + 32, GST_BUFFER_OFFSET_END (buffer)); + GST_WRITE_UINT32_BE (h + 4, GST_BUFFER_SIZE (buffer)); + GST_WRITE_UINT64_BE (h + 8, GST_BUFFER_TIMESTAMP (buffer)); + GST_WRITE_UINT64_BE (h + 16, GST_BUFFER_DURATION (buffer)); + GST_WRITE_UINT64_BE (h + 24, GST_BUFFER_OFFSET (buffer)); + GST_WRITE_UINT64_BE (h + 32, GST_BUFFER_OFFSET_END (buffer)); /* ABI padding */ - GST_DP_WRITE_GUINT64 (h + 40, (guint64) 0); - GST_DP_WRITE_GUINT64 (h + 48, (guint64) 0); + GST_WRITE_UINT64_BE (h + 40, (guint64) 0); + GST_WRITE_UINT64_BE (h + 48, (guint64) 0); /* CRC */ crc = 0; @@ -199,13 +194,13 @@ gst_dp_header_from_buffer (const GstBuffer * buffer, GstDPHeaderFlag flags, /* we don't crc the last four bytes of the header since they are crc's */ crc = gst_dp_crc (h, 56); } - GST_DP_WRITE_GUINT16 (h + 56, crc); + GST_WRITE_UINT16_BE (h + 56, crc); crc = 0; if (flags & GST_DP_HEADER_FLAG_CRC_PAYLOAD) { crc = gst_dp_crc (GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer)); } - GST_DP_WRITE_GUINT16 (h + 58, crc); + GST_WRITE_UINT16_BE (h + 58, crc); GST_LOG ("created header from buffer:"); gst_dp_dump_byte_array (h, GST_DP_HEADER_LENGTH); @@ -235,6 +230,9 @@ gst_dp_packet_from_caps (const GstCaps * caps, GstDPHeaderFlag flags, /* FIXME: GST_IS_CAPS doesn't work g_return_val_if_fail (GST_IS_CAPS (caps), FALSE); */ + g_return_val_if_fail (caps, FALSE); + g_return_val_if_fail (header, FALSE); + g_return_val_if_fail (payload, FALSE); *length = GST_DP_HEADER_LENGTH; h = g_malloc (GST_DP_HEADER_LENGTH); @@ -248,28 +246,28 @@ gst_dp_packet_from_caps (const GstCaps * caps, GstDPHeaderFlag flags, h[3] = GST_DP_PAYLOAD_CAPS; /* buffer properties */ - GST_DP_WRITE_GUINT32 (h + 4, strlen (string) + 1); /* include trailing 0 */ - GST_DP_WRITE_GUINT64 (h + 8, (guint64) 0); - GST_DP_WRITE_GUINT64 (h + 16, (guint64) 0); - GST_DP_WRITE_GUINT64 (h + 24, (guint64) 0); - GST_DP_WRITE_GUINT64 (h + 32, (guint64) 0); + GST_WRITE_UINT32_BE (h + 4, strlen (string) + 1); /* include trailing 0 */ + GST_WRITE_UINT64_BE (h + 8, (guint64) 0); + GST_WRITE_UINT64_BE (h + 16, (guint64) 0); + GST_WRITE_UINT64_BE (h + 24, (guint64) 0); + GST_WRITE_UINT64_BE (h + 32, (guint64) 0); /* ABI padding */ - GST_DP_WRITE_GUINT64 (h + 40, (guint64) 0); - GST_DP_WRITE_GUINT64 (h + 48, (guint64) 0); + GST_WRITE_UINT64_BE (h + 40, (guint64) 0); + GST_WRITE_UINT64_BE (h + 48, (guint64) 0); /* CRC */ crc = 0; if (flags & GST_DP_HEADER_FLAG_CRC_HEADER) { crc = gst_dp_crc (h, 56); } - GST_DP_WRITE_GUINT16 (h + 56, crc); + GST_WRITE_UINT16_BE (h + 56, crc); crc = 0; if (flags & GST_DP_HEADER_FLAG_CRC_PAYLOAD) { crc = gst_dp_crc (string, strlen (string) + 1); } - GST_DP_WRITE_GUINT16 (h + 58, crc); + GST_WRITE_UINT16_BE (h + 58, crc); GST_LOG ("created header from caps:"); gst_dp_dump_byte_array (h, GST_DP_HEADER_LENGTH); @@ -296,10 +294,12 @@ gst_dp_packet_from_event (const GstEvent * event, GstDPHeaderFlag flags, { guint8 *h; guint16 crc; - gchar *string = NULL; guint pl_length; /* length of payload */ + g_return_val_if_fail (event, FALSE); g_return_val_if_fail (GST_IS_EVENT (event), FALSE); + g_return_val_if_fail (header, FALSE); + g_return_val_if_fail (payload, FALSE); *length = GST_DP_HEADER_LENGTH; h = g_malloc0 (GST_DP_HEADER_LENGTH); @@ -315,28 +315,28 @@ gst_dp_packet_from_event (const GstEvent * event, GstDPHeaderFlag flags, case GST_EVENT_FLUSH: case GST_EVENT_EMPTY: case GST_EVENT_DISCONTINUOUS: - GST_DP_WRITE_GUINT64 (h + 8, GST_EVENT_TIMESTAMP (event)); + GST_WRITE_UINT64_BE (h + 8, GST_EVENT_TIMESTAMP (event)); pl_length = 0; *payload = NULL; break; case GST_EVENT_SEEK: pl_length = 4 + 8 + 4; *payload = g_malloc0 (pl_length); - GST_DP_WRITE_GUINT32 (*payload, (guint32) GST_EVENT_SEEK_TYPE (event)); - GST_DP_WRITE_GUINT64 (*payload + 4, + GST_WRITE_UINT32_BE (*payload, (guint32) GST_EVENT_SEEK_TYPE (event)); + GST_WRITE_UINT64_BE (*payload + 4, (guint64) GST_EVENT_SEEK_OFFSET (event)); - GST_DP_WRITE_GUINT32 (*payload + 12, + GST_WRITE_UINT32_BE (*payload + 12, (guint32) GST_EVENT_SEEK_ACCURACY (event)); break; case GST_EVENT_SEEK_SEGMENT: pl_length = 4 + 8 + 8 + 4; *payload = g_malloc0 (pl_length); - GST_DP_WRITE_GUINT32 (*payload, (guint32) GST_EVENT_SEEK_TYPE (event)); - GST_DP_WRITE_GUINT64 (*payload + 4, + GST_WRITE_UINT32_BE (*payload, (guint32) GST_EVENT_SEEK_TYPE (event)); + GST_WRITE_UINT64_BE (*payload + 4, (guint64) GST_EVENT_SEEK_OFFSET (event)); - GST_DP_WRITE_GUINT64 (*payload + 12, + GST_WRITE_UINT64_BE (*payload + 12, (guint64) GST_EVENT_SEEK_ENDOFFSET (event)); - GST_DP_WRITE_GUINT32 (*payload + 20, + GST_WRITE_UINT32_BE (*payload + 20, (guint32) GST_EVENT_SEEK_ACCURACY (event)); break; case GST_EVENT_QOS: @@ -364,26 +364,27 @@ gst_dp_packet_from_event (const GstEvent * event, GstDPHeaderFlag flags, h[3] = GST_DP_PAYLOAD_EVENT_NONE + GST_EVENT_TYPE (event); /* length */ - GST_DP_WRITE_GUINT32 (h + 4, (guint32) pl_length); + GST_WRITE_UINT32_BE (h + 4, (guint32) pl_length); /* timestamp */ - GST_DP_WRITE_GUINT64 (h + 8, GST_EVENT_TIMESTAMP (event)); + GST_WRITE_UINT64_BE (h + 8, GST_EVENT_TIMESTAMP (event)); /* ABI padding */ - GST_DP_WRITE_GUINT64 (h + 40, (guint64) 0); - GST_DP_WRITE_GUINT64 (h + 48, (guint64) 0); + GST_WRITE_UINT64_BE (h + 40, (guint64) 0); + GST_WRITE_UINT64_BE (h + 48, (guint64) 0); /* CRC */ crc = 0; if (flags & GST_DP_HEADER_FLAG_CRC_HEADER) { crc = gst_dp_crc (h, 56); } - GST_DP_WRITE_GUINT16 (h + 56, crc); + GST_WRITE_UINT16_BE (h + 56, crc); crc = 0; - if (flags & GST_DP_HEADER_FLAG_CRC_PAYLOAD) { - crc = gst_dp_crc (string, strlen (string) + 1); + /* events can have a NULL payload */ + if (*payload && flags & GST_DP_HEADER_FLAG_CRC_PAYLOAD) { + crc = gst_dp_crc (*payload, strlen (*payload) + 1); } - GST_DP_WRITE_GUINT16 (h + 58, crc); + GST_WRITE_UINT16_BE (h + 58, crc); GST_LOG ("created header from event:"); gst_dp_dump_byte_array (h, GST_DP_HEADER_LENGTH); @@ -487,9 +488,9 @@ gst_dp_event_from_packet (guint header_length, const guint8 * header, gint64 offset; GstSeekAccuracy accuracy; - type = (GstSeekType) GST_DP_GUINT32 (payload); - offset = (gint64) GST_DP_GUINT64 (payload + 4); - accuracy = (GstSeekAccuracy) GST_DP_GUINT32 (payload + 12); + type = (GstSeekType) GST_READ_UINT32_BE (payload); + offset = (gint64) GST_READ_UINT64_BE (payload + 4); + accuracy = (GstSeekAccuracy) GST_READ_UINT32_BE (payload + 12); event = gst_event_new_seek (type, offset); GST_EVENT_TIMESTAMP (event) = GST_DP_HEADER_TIMESTAMP (header); GST_EVENT_SEEK_ACCURACY (event) = accuracy; @@ -501,10 +502,10 @@ gst_dp_event_from_packet (guint header_length, const guint8 * header, gint64 offset, endoffset; GstSeekAccuracy accuracy; - type = (GstSeekType) GST_DP_GUINT32 (payload); - offset = (gint64) GST_DP_GUINT64 (payload + 4); - endoffset = (gint64) GST_DP_GUINT64 (payload + 12); - accuracy = (GstSeekAccuracy) GST_DP_GUINT32 (payload + 20); + type = (GstSeekType) GST_READ_UINT32_BE (payload); + offset = (gint64) GST_READ_UINT64_BE (payload + 4); + endoffset = (gint64) GST_READ_UINT64_BE (payload + 12); + accuracy = (GstSeekAccuracy) GST_READ_UINT32_BE (payload + 20); event = gst_event_new_segment_seek (type, offset, endoffset); GST_EVENT_TIMESTAMP (event) = GST_DP_HEADER_TIMESTAMP (header); GST_EVENT_SEEK_ACCURACY (event) = accuracy; diff --git a/gst/gdp/dp-private.h b/gst/gdp/dp-private.h index d253789..f522457 100644 --- a/gst/gdp/dp-private.h +++ b/gst/gdp/dp-private.h @@ -30,23 +30,18 @@ G_BEGIN_DECLS -/* read the given type out of the byte buffer using glib conversion macros */ -#define GST_DP_GUINT16(x) GUINT16_FROM_BE (* (guint16 *) (x)) -#define GST_DP_GUINT32(x) GUINT32_FROM_BE (* (guint32 *) (x)) -#define GST_DP_GUINT64(x) GUINT64_FROM_BE (* (guint64 *) (x)) - /* accessor defines */ #define GST_DP_HEADER_MAJOR_VERSION(x) ((x)[0]) #define GST_DP_HEADER_MINOR_VERSION(x) ((x)[1]) #define GST_DP_HEADER_FLAGS(x) ((x)[2]) #define GST_DP_HEADER_PAYLOAD_TYPE(x) ((x)[3]) -#define GST_DP_HEADER_PAYLOAD_LENGTH(x) GST_DP_GUINT32 (x + 4) -#define GST_DP_HEADER_TIMESTAMP(x) GST_DP_GUINT64 (x + 8) -#define GST_DP_HEADER_DURATION(x) GST_DP_GUINT64 (x + 16) -#define GST_DP_HEADER_OFFSET(x) GST_DP_GUINT64 (x + 24) -#define GST_DP_HEADER_OFFSET_END(x) GST_DP_GUINT64 (x + 32) -#define GST_DP_HEADER_CRC_HEADER(x) GST_DP_GUINT16 (x + 56) -#define GST_DP_HEADER_CRC_PAYLOAD(x) GST_DP_GUINT16 (x + 58) +#define GST_DP_HEADER_PAYLOAD_LENGTH(x) GST_READ_UINT32_BE (x + 4) +#define GST_DP_HEADER_TIMESTAMP(x) GST_READ_UINT64_BE (x + 8) +#define GST_DP_HEADER_DURATION(x) GST_READ_UINT64_BE (x + 16) +#define GST_DP_HEADER_OFFSET(x) GST_READ_UINT64_BE (x + 24) +#define GST_DP_HEADER_OFFSET_END(x) GST_READ_UINT64_BE (x + 32) +#define GST_DP_HEADER_CRC_HEADER(x) GST_READ_UINT16_BE (x + 56) +#define GST_DP_HEADER_CRC_PAYLOAD(x) GST_READ_UINT16_BE (x + 58) void gst_dp_init (void); void gst_dp_dump_byte_array (guint8 *array, guint length); -- 2.7.4