code.delx.au - pulseaudio/blob - src/modules/rtp/rtp.h

   1 #ifndef foortphfoo
   2 #define foortphfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2006 Lennart Poettering
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2.1 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <inttypes.h>
  26 #include <sys/socket.h>
  27 #include <sys/types.h>
  28 #include <pulsecore/memblockq.h>
  29 #include <pulsecore/memchunk.h>
  30
  31 typedef struct pa_rtp_context {
  32     int fd;
  33     uint16_t sequence;
  34     uint32_t timestamp;
  35     uint32_t ssrc;
  36     uint8_t payload;
  37     size_t frame_size;
  38
  39     pa_memchunk memchunk;
  40 } pa_rtp_context;
  41
  42 pa_rtp_context* pa_rtp_context_init_send(pa_rtp_context *c, int fd, uint32_t ssrc, uint8_t payload, size_t frame_size);
  43
  44 /* If the memblockq doesn't have a silence memchunk set, then the caller must
  45  * guarantee that the current read index doesn't point to a hole. */
  46 int pa_rtp_send(pa_rtp_context *c, size_t size, pa_memblockq *q);
  47
  48 pa_rtp_context* pa_rtp_context_init_recv(pa_rtp_context *c, int fd, size_t frame_size);
  49 int pa_rtp_recv(pa_rtp_context *c, pa_memchunk *chunk, pa_mempool *pool, struct timeval *tstamp);
  50
  51 void pa_rtp_context_destroy(pa_rtp_context *c);
  52
  53 pa_sample_spec* pa_rtp_sample_spec_fixup(pa_sample_spec *ss);
  54 int pa_rtp_sample_spec_valid(const pa_sample_spec *ss);
  55
  56 uint8_t pa_rtp_payload_from_sample_spec(const pa_sample_spec *ss);
  57 pa_sample_spec *pa_rtp_sample_spec_from_payload(uint8_t payload, pa_sample_spec *ss);
  58
  59 const char* pa_rtp_format_to_string(pa_sample_format_t f);
  60 pa_sample_format_t pa_rtp_string_to_format(const char *s);
  61
  62 #endif