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gst-libs/gst/rtp/gstrtpbuffer.c: Avoid expensive type checks we already did as part of the _validate() function that ...

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Original commit message from CVS:
* gst-libs/gst/rtp/gstrtpbuffer.c: (gst_rtp_buffer_validate_data),
(gst_rtp_buffer_set_packet_len), (gst_rtp_buffer_get_packet_len),
(gst_rtp_buffer_get_header_len), (gst_rtp_buffer_get_version),
(gst_rtp_buffer_set_version), (gst_rtp_buffer_get_padding),
(gst_rtp_buffer_set_padding), (gst_rtp_buffer_pad_to),
(gst_rtp_buffer_get_extension), (gst_rtp_buffer_set_extension),
(gst_rtp_buffer_get_extension_data),
(gst_rtp_buffer_set_extension_data), (gst_rtp_buffer_get_ssrc),
(gst_rtp_buffer_set_ssrc), (gst_rtp_buffer_get_csrc_count),
(gst_rtp_buffer_get_csrc), (gst_rtp_buffer_set_csrc),
(gst_rtp_buffer_get_marker), (gst_rtp_buffer_set_marker),
(gst_rtp_buffer_get_payload_type),
(gst_rtp_buffer_set_payload_type), (gst_rtp_buffer_get_seq),
(gst_rtp_buffer_set_seq), (gst_rtp_buffer_get_timestamp),
(gst_rtp_buffer_set_timestamp),
(gst_rtp_buffer_get_payload_subbuffer),
(gst_rtp_buffer_get_payload_len), (gst_rtp_buffer_get_payload):
Avoid expensive type checks we already did as part of the
_validate() function that should be called first.
This commit is contained in:
Wim Taymans 2008-11-13 15:37:40 +00:00
parent c98d4a5031
commit 9c32e1f152
2 changed files with 26 additions and 79 deletions
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22
ChangeLog
View file

@ -1,3 +1,25 @@
2008-11-13 Wim Taymans <wim.taymans@collabora.co.uk>
* gst-libs/gst/rtp/gstrtpbuffer.c: (gst_rtp_buffer_validate_data),
(gst_rtp_buffer_set_packet_len), (gst_rtp_buffer_get_packet_len),
(gst_rtp_buffer_get_header_len), (gst_rtp_buffer_get_version),
(gst_rtp_buffer_set_version), (gst_rtp_buffer_get_padding),
(gst_rtp_buffer_set_padding), (gst_rtp_buffer_pad_to),
(gst_rtp_buffer_get_extension), (gst_rtp_buffer_set_extension),
(gst_rtp_buffer_get_extension_data),
(gst_rtp_buffer_set_extension_data), (gst_rtp_buffer_get_ssrc),
(gst_rtp_buffer_set_ssrc), (gst_rtp_buffer_get_csrc_count),
(gst_rtp_buffer_get_csrc), (gst_rtp_buffer_set_csrc),
(gst_rtp_buffer_get_marker), (gst_rtp_buffer_set_marker),
(gst_rtp_buffer_get_payload_type),
(gst_rtp_buffer_set_payload_type), (gst_rtp_buffer_get_seq),
(gst_rtp_buffer_set_seq), (gst_rtp_buffer_get_timestamp),
(gst_rtp_buffer_set_timestamp),
(gst_rtp_buffer_get_payload_subbuffer),
(gst_rtp_buffer_get_payload_len), (gst_rtp_buffer_get_payload):
Avoid expensive type checks we already did as part of the
_validate() function that should be called first.
2008-11-11 Wim Taymans <wim.taymans@collabora.co.uk>
* gst-libs/gst/rtp/gstbasertpdepayload.c: (create_segment_event),

83
gst-libs/gst/rtp/gstrtpbuffer.c
View file

@ -310,8 +310,8 @@ gst_rtp_buffer_validate_data (guint8 * data, guint len)
goto wrong_length;
/* check version */
version = (data[0] & 0xc0) >> 6;
if (G_UNLIKELY (version != GST_RTP_VERSION))
version = (data[0] & 0xc0);
if (G_UNLIKELY (version != (GST_RTP_VERSION << 6)))
goto wrong_version;
/* calc header length with csrc */
@ -375,6 +375,8 @@ wrong_padding:
*
* Check if the data pointed to by @buffer is a valid RTP packet using
* gst_rtp_buffer_validate_data().
* Use this function to validate a packet before using the other functions in
* this module.
*
* Returns: TRUE if @buffer is a valid RTP packet.
*/
@ -405,8 +407,6 @@ gst_rtp_buffer_set_packet_len (GstBuffer * buffer, guint len)
{
guint oldlen;
g_return_if_fail (GST_IS_BUFFER (buffer));
oldlen = GST_BUFFER_SIZE (buffer);
if (oldlen < len) {
@ -433,8 +433,6 @@ gst_rtp_buffer_set_packet_len (GstBuffer * buffer, guint len)
guint
gst_rtp_buffer_get_packet_len (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
return GST_BUFFER_SIZE (buffer);
}
@ -452,8 +450,6 @@ gst_rtp_buffer_get_header_len (GstBuffer * buffer)
{
guint len;
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
len = GST_RTP_HEADER_LEN + GST_RTP_HEADER_CSRC_SIZE (buffer);
if (GST_RTP_HEADER_EXTENSION (buffer))
len += GST_READ_UINT16_BE (GST_BUFFER_DATA (buffer) + len + 2) * 4 + 4;
@ -472,9 +468,6 @@ gst_rtp_buffer_get_header_len (GstBuffer * buffer)
guint8
gst_rtp_buffer_get_version (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
return GST_RTP_HEADER_VERSION (buffer);
}
@ -488,9 +481,7 @@ gst_rtp_buffer_get_version (GstBuffer * buffer)
void
gst_rtp_buffer_set_version (GstBuffer * buffer, guint8 version)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (version < 0x04);
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_VERSION (buffer) = version;
}
@ -506,9 +497,6 @@ gst_rtp_buffer_set_version (GstBuffer * buffer, guint8 version)
gboolean
gst_rtp_buffer_get_padding (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, FALSE);
return GST_RTP_HEADER_PADDING (buffer);
}
@ -522,9 +510,6 @@ gst_rtp_buffer_get_padding (GstBuffer * buffer)
void
gst_rtp_buffer_set_padding (GstBuffer * buffer, gboolean padding)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_PADDING (buffer) = padding;
}
@ -541,9 +526,6 @@ gst_rtp_buffer_set_padding (GstBuffer * buffer, gboolean padding)
void
gst_rtp_buffer_pad_to (GstBuffer * buffer, guint len)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
if (len > 0)
GST_RTP_HEADER_PADDING (buffer) = TRUE;
else
@ -563,9 +545,6 @@ gst_rtp_buffer_pad_to (GstBuffer * buffer, guint len)
gboolean
gst_rtp_buffer_get_extension (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, FALSE);
return GST_RTP_HEADER_EXTENSION (buffer);
}
@ -579,9 +558,6 @@ gst_rtp_buffer_get_extension (GstBuffer * buffer)
void
gst_rtp_buffer_set_extension (GstBuffer * buffer, gboolean extension)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_EXTENSION (buffer) = extension;
}
@ -610,9 +586,6 @@ gst_rtp_buffer_get_extension_data (GstBuffer * buffer, guint16 * bits,
guint len;
guint8 *pdata;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, FALSE);
if (!GST_RTP_HEADER_EXTENSION (buffer))
return FALSE;
@ -652,9 +625,6 @@ gst_rtp_buffer_set_extension_data (GstBuffer * buffer, guint16 bits,
guint32 min_size = 0;
guint8 *data;
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, FALSE);
/* check if the buffer is big enough to hold the extension */
min_size =
GST_RTP_HEADER_LEN + GST_RTP_HEADER_CSRC_SIZE (buffer) + 4 +
@ -693,9 +663,6 @@ too_small:
guint32
gst_rtp_buffer_get_ssrc (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
return g_ntohl (GST_RTP_HEADER_SSRC (buffer));
}
@ -709,9 +676,6 @@ gst_rtp_buffer_get_ssrc (GstBuffer * buffer)
void
gst_rtp_buffer_set_ssrc (GstBuffer * buffer, guint32 ssrc)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_SSRC (buffer) = g_htonl (ssrc);
}
@ -726,9 +690,6 @@ gst_rtp_buffer_set_ssrc (GstBuffer * buffer, guint32 ssrc)
guint8
gst_rtp_buffer_get_csrc_count (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
return GST_RTP_HEADER_CSRC_COUNT (buffer);
}
@ -744,8 +705,6 @@ gst_rtp_buffer_get_csrc_count (GstBuffer * buffer)
guint32
gst_rtp_buffer_get_csrc (GstBuffer * buffer, guint8 idx)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
g_return_val_if_fail (idx < GST_RTP_HEADER_CSRC_COUNT (buffer), 0);
return GST_READ_UINT32_BE (GST_RTP_HEADER_CSRC_LIST_OFFSET (buffer, idx));
@ -762,8 +721,6 @@ gst_rtp_buffer_get_csrc (GstBuffer * buffer, guint8 idx)
void
gst_rtp_buffer_set_csrc (GstBuffer * buffer, guint8 idx, guint32 csrc)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
g_return_if_fail (idx < GST_RTP_HEADER_CSRC_COUNT (buffer));
GST_WRITE_UINT32_BE (GST_RTP_HEADER_CSRC_LIST_OFFSET (buffer, idx), csrc);
@ -780,9 +737,6 @@ gst_rtp_buffer_set_csrc (GstBuffer * buffer, guint8 idx, guint32 csrc)
gboolean
gst_rtp_buffer_get_marker (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, FALSE);
return GST_RTP_HEADER_MARKER (buffer);
}
@ -796,9 +750,6 @@ gst_rtp_buffer_get_marker (GstBuffer * buffer)
void
gst_rtp_buffer_set_marker (GstBuffer * buffer, gboolean marker)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_MARKER (buffer) = marker;
}
@ -813,9 +764,6 @@ gst_rtp_buffer_set_marker (GstBuffer * buffer, gboolean marker)
guint8
gst_rtp_buffer_get_payload_type (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
return GST_RTP_HEADER_PAYLOAD_TYPE (buffer);
}
@ -829,8 +777,6 @@ gst_rtp_buffer_get_payload_type (GstBuffer * buffer)
void
gst_rtp_buffer_set_payload_type (GstBuffer * buffer, guint8 payload_type)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
g_return_if_fail (payload_type < 0x80);
GST_RTP_HEADER_PAYLOAD_TYPE (buffer) = payload_type;
@ -847,9 +793,6 @@ gst_rtp_buffer_set_payload_type (GstBuffer * buffer, guint8 payload_type)
guint16
gst_rtp_buffer_get_seq (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
return g_ntohs (GST_RTP_HEADER_SEQ (buffer));
}
@ -863,9 +806,6 @@ gst_rtp_buffer_get_seq (GstBuffer * buffer)
void
gst_rtp_buffer_set_seq (GstBuffer * buffer, guint16 seq)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_SEQ (buffer) = g_htons (seq);
}
@ -880,9 +820,6 @@ gst_rtp_buffer_set_seq (GstBuffer * buffer, guint16 seq)
guint32
gst_rtp_buffer_get_timestamp (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
return g_ntohl (GST_RTP_HEADER_TIMESTAMP (buffer));
}
@ -896,9 +833,6 @@ gst_rtp_buffer_get_timestamp (GstBuffer * buffer)
void
gst_rtp_buffer_set_timestamp (GstBuffer * buffer, guint32 timestamp)
{
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);
GST_RTP_HEADER_TIMESTAMP (buffer) = g_htonl (timestamp);
}
@ -922,9 +856,6 @@ gst_rtp_buffer_get_payload_subbuffer (GstBuffer * buffer, guint offset,
{
guint poffset, plen;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, NULL);
plen = gst_rtp_buffer_get_payload_len (buffer);
/* we can't go past the length */
if (G_UNLIKELY (offset >= plen))
@ -977,9 +908,6 @@ gst_rtp_buffer_get_payload_len (GstBuffer * buffer)
{
guint len, size;
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
size = GST_BUFFER_SIZE (buffer);
len = size - gst_rtp_buffer_get_header_len (buffer);
@ -1002,9 +930,6 @@ gst_rtp_buffer_get_payload_len (GstBuffer * buffer)
gpointer
gst_rtp_buffer_get_payload (GstBuffer * buffer)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, NULL);
return GST_BUFFER_DATA (buffer) + gst_rtp_buffer_get_header_len (buffer);
}