diff -r 9b2c3c7a1a9c -r 567bb019e3e3 gst_plugins_base/gst-libs/gst/rtp/gstrtcpbuffer.c --- a/gst_plugins_base/gst-libs/gst/rtp/gstrtcpbuffer.c Wed Mar 31 22:03:18 2010 +0300 +++ b/gst_plugins_base/gst-libs/gst/rtp/gstrtcpbuffer.c Tue Aug 31 15:30:33 2010 +0300 @@ -36,14 +36,18 @@ * * An RTCP buffer consists of 1 or more #GstRTCPPacket structures that you can * retrieve with gst_rtcp_buffer_get_first_packet(). #GstRTCPPacket acts as a pointer - * into the RTCP buffer; you can move to the next packet with + * into the RTCP buffer; +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + you can move to the next packet with * gst_rtcp_packet_move_to_next(). * * * - * Since: 0.10.13 + * Last reviewed on 2007-03-26 (0.10.13) * - * Last reviewed on 2007-03-26 (0.10.13) + * Since: 0.10.13 */ #include @@ -405,7 +409,8 @@ */ #ifdef __SYMBIAN32__ EXPORT_C -#endif +#endif + gboolean gst_rtcp_packet_move_to_next (GstRTCPPacket * packet) { @@ -488,6 +493,11 @@ case GST_RTCP_TYPE_APP: len = 12; break; + case GST_RTCP_TYPE_RTPFB: + len = 12; + break; + case GST_RTCP_TYPE_PSFB: + len = 12; default: goto unknown_type; } @@ -525,21 +535,38 @@ * gst_rtcp_packet_remove: * @packet: a #GstRTCPPacket * - * Removes the packet pointed to by @packet. + * Removes the packet pointed to by @packet and moves pointer to the next one * - * Note: Not implemented. + * Returns: TRUE if @packet is pointing to a valid packet after calling this + * function. */ #ifdef __SYMBIAN32__ EXPORT_C #endif -void +gboolean gst_rtcp_packet_remove (GstRTCPPacket * packet) { - g_return_if_fail (packet != NULL); - g_return_if_fail (packet->type != GST_RTCP_TYPE_INVALID); + gboolean ret = FALSE; + guint offset = 0; + + g_return_val_if_fail (packet != NULL, FALSE); + g_return_val_if_fail (packet->type != GST_RTCP_TYPE_INVALID, FALSE); + + /* The next packet starts at offset + length + 4 (the header) */ + offset = packet->offset + (packet->length << 2) + 4; - g_warning ("not implemented"); + /* Overwrite this packet with the rest of the data */ + memmove (GST_BUFFER_DATA (packet->buffer) + packet->offset, + GST_BUFFER_DATA (packet->buffer) + offset, + GST_BUFFER_SIZE (packet->buffer) - offset); + + /* try to read next header */ + ret = read_packet_header (packet); + if (!ret) + packet->type = GST_RTCP_TYPE_INVALID; + + return ret; } /** @@ -569,7 +596,8 @@ * * Get the packet type of the packet pointed to by @packet. * - * Returns: The packet type. + * Returns: The packet type or GST_RTCP_TYPE_INVALID when @packet is not + * pointing to a valid packet. */ #ifdef __SYMBIAN32__ EXPORT_C @@ -579,8 +607,6 @@ gst_rtcp_packet_get_type (GstRTCPPacket * packet) { g_return_val_if_fail (packet != NULL, GST_RTCP_TYPE_INVALID); - g_return_val_if_fail (packet->type != GST_RTCP_TYPE_INVALID, - GST_RTCP_TYPE_INVALID); return packet->type; } @@ -1779,6 +1805,187 @@ } /** + * gst_rtcp_packet_fb_get_sender_ssrc: + * @packet: a valid RTPFB or PSFB #GstRTCPPacket + * + * Get the sender SSRC field of the RTPFB or PSFB @packet. + * + * Returns: the sender SSRC. + * + * Since: 0.10.23 + */ +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + +guint32 +gst_rtcp_packet_fb_get_sender_ssrc (GstRTCPPacket * packet) +{ + guint8 *data; + guint32 ssrc; + + g_return_val_if_fail (packet != NULL, 0); + g_return_val_if_fail ((packet->type == GST_RTCP_TYPE_RTPFB || + packet->type == GST_RTCP_TYPE_PSFB), 0); + g_return_val_if_fail (GST_IS_BUFFER (packet->buffer), 0); + + data = GST_BUFFER_DATA (packet->buffer); + + /* skip header */ + data += packet->offset + 4; + ssrc = GST_READ_UINT32_BE (data); + + return ssrc; +} + +/** + * gst_rtcp_packet_fb_set_sender_ssrc: + * @packet: a valid RTPFB or PSFB #GstRTCPPacket + * @ssrc: a sender SSRC + * + * Set the sender SSRC field of the RTPFB or PSFB @packet. + * + * Since: 0.10.23 + */ +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + +void +gst_rtcp_packet_fb_set_sender_ssrc (GstRTCPPacket * packet, guint32 ssrc) +{ + guint8 *data; + + g_return_if_fail (packet != NULL); + g_return_if_fail (packet->type == GST_RTCP_TYPE_RTPFB || + packet->type == GST_RTCP_TYPE_PSFB); + g_return_if_fail (GST_IS_BUFFER (packet->buffer)); + + data = GST_BUFFER_DATA (packet->buffer); + + /* skip header */ + data += packet->offset + 4; + GST_WRITE_UINT32_BE (data, ssrc); +} + +/** + * gst_rtcp_packet_fb_get_media_ssrc: + * @packet: a valid RTPFB or PSFB #GstRTCPPacket + * + * Get the media SSRC field of the RTPFB or PSFB @packet. + * + * Returns: the media SSRC. + * + * Since: 0.10.23 + */ +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + +guint32 +gst_rtcp_packet_fb_get_media_ssrc (GstRTCPPacket * packet) +{ + guint8 *data; + guint32 ssrc; + + g_return_val_if_fail (packet != NULL, 0); + g_return_val_if_fail ((packet->type == GST_RTCP_TYPE_RTPFB || + packet->type == GST_RTCP_TYPE_PSFB), 0); + g_return_val_if_fail (GST_IS_BUFFER (packet->buffer), 0); + + data = GST_BUFFER_DATA (packet->buffer); + + /* skip header and sender ssrc */ + data += packet->offset + 8; + ssrc = GST_READ_UINT32_BE (data); + + return ssrc; +} + +/** + * gst_rtcp_packet_fb_set_media_ssrc: + * @packet: a valid RTPFB or PSFB #GstRTCPPacket + * @ssrc: a media SSRC + * + * Set the media SSRC field of the RTPFB or PSFB @packet. + * + * Since: 0.10.23 + */ +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + +void +gst_rtcp_packet_fb_set_media_ssrc (GstRTCPPacket * packet, guint32 ssrc) +{ + guint8 *data; + + g_return_if_fail (packet != NULL); + g_return_if_fail (packet->type == GST_RTCP_TYPE_RTPFB || + packet->type == GST_RTCP_TYPE_PSFB); + g_return_if_fail (GST_IS_BUFFER (packet->buffer)); + + data = GST_BUFFER_DATA (packet->buffer); + + /* skip header and sender ssrc */ + data += packet->offset + 8; + GST_WRITE_UINT32_BE (data, ssrc); +} + +/** + * gst_rtcp_packet_fb_get_type: + * @packet: a valid RTPFB or PSFB #GstRTCPPacket + * + * Get the feedback message type of the FB @packet. + * + * Returns: The feedback message type. + * + * Since: 0.10.23 + */ +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + +GstRTCPFBType +gst_rtcp_packet_fb_get_type (GstRTCPPacket * packet) +{ + g_return_val_if_fail (packet != NULL, GST_RTCP_FB_TYPE_INVALID); + g_return_val_if_fail (packet->type == GST_RTCP_TYPE_RTPFB || + packet->type == GST_RTCP_TYPE_PSFB, GST_RTCP_FB_TYPE_INVALID); + + return packet->count; +} + +/** + * gst_rtcp_packet_fb_set_type: + * @packet: a valid RTPFB or PSFB #GstRTCPPacket + * @type: the #GstRTCPFBType to set + * + * Set the feedback message type of the FB @packet. + * + * Since: 0.10.23 + */ +#ifdef __SYMBIAN32__ +EXPORT_C +#endif + +void +gst_rtcp_packet_fb_set_type (GstRTCPPacket * packet, GstRTCPFBType type) +{ + guint8 *data; + + g_return_if_fail (packet != NULL); + g_return_if_fail (packet->type == GST_RTCP_TYPE_RTPFB || + packet->type == GST_RTCP_TYPE_PSFB); + g_return_if_fail (GST_IS_BUFFER (packet->buffer)); + + data = GST_BUFFER_DATA (packet->buffer); + + data[packet->offset] = (data[packet->offset] & 0xe0) | type; + packet->count = type; +} + +/** * gst_rtcp_ntp_to_unix: * @ntptime: an NTP timestamp * @@ -1819,7 +2026,7 @@ * bits, the fractional seconds. The resulting value can be used as an ntptime * for constructing SR RTCP packets. * - * Returns: the NTP time for @gsttime. + * Returns: the NTP time for @unixtime. */ #ifdef __SYMBIAN32__ EXPORT_C