Original commit message from CVS:
Patch by: Wai-Ming Ho <webregbox at yahoo dot co dot uk>
* gst/rtp/gstrtph264pay.c: (gst_rtp_h264_pay_init),
(gst_rtp_h264_pay_finalize), (gst_rtp_h264_pay_setcaps),
(next_start_code), (is_nal_equal), (gst_rtp_h264_pay_decode_nal),
(encode_base64), (gst_rtp_h264_pay_parse_sps_pps),
(gst_rtp_h264_pay_handle_buffer):
* gst/rtp/gstrtph264pay.h:
Use higher performance start-code searching.
Parse NALs and store SPS, PPS and profile in the caps so that they can
be used in the SDP. Fixes#502814.