mirror of
https://github.com/baresip/baresip
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6f9b13b7cc
Keep include order to prevent errors: 1. System/Third party headers 2. libre/baresip headers 3. Local/Custom headers https://github.com/baresip/re/wiki/Development-(re-usage)#include-headers
88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
/**
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* @file avcodec/sdp.c Video codecs using libavcodec -- SDP functions
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*
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* Copyright (C) 2010 Alfred E. Heggestad
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* Copyright (C) 2021 by:
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* Media Magic Technologies <developer@mediamagictechnologies.com>
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* and Divus GmbH <developer@divus.eu>
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*/
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#include <libavcodec/avcodec.h>
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#include <re.h>
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#include <baresip.h>
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#include "avcodec.h"
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static char profile_level_id[256] = "";
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uint32_t h264_packetization_mode(const char *fmtp)
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{
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struct pl pl, mode;
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if (!fmtp)
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return 0;
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pl_set_str(&pl, fmtp);
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if (fmt_param_get(&pl, "packetization-mode", &mode))
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return pl_u32(&mode);
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return 0;
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}
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int avcodec_h264_fmtp_enc(struct mbuf *mb, const struct sdp_format *fmt,
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bool offer, void *arg)
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{
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struct vidcodec *vc = arg;
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uint8_t profile_idc = 0x42; /* baseline profile */
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uint8_t profile_iop = 0xe0;
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uint8_t h264_level_idc = 0x1f;
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(void)offer;
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if (!mb || !fmt || !vc)
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return 0;
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conf_get_str(conf_cur(), "avcodec_profile_level_id",
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profile_level_id, sizeof(profile_level_id));
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if (str_isset(profile_level_id)) {
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struct pl prof;
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pl_set_str(&prof, profile_level_id);
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if (prof.l != 6) {
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warning("avcodec: invalid profile_level_id"
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" (%r) using default\n",
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profile_level_id);
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goto out;
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}
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prof.l = 2;
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profile_idc = pl_x32(&prof); prof.p += 2;
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profile_iop = pl_x32(&prof); prof.p += 2;
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h264_level_idc = pl_x32(&prof);
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}
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out:
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return mbuf_printf(mb, "a=fmtp:%s"
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" %s"
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";profile-level-id=%02x%02x%02x"
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"\r\n",
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fmt->id, vc->variant,
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profile_idc, profile_iop, h264_level_idc);
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}
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bool avcodec_h264_fmtp_cmp(const char *lfmtp, const char *rfmtp, void *arg)
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{
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const struct vidcodec *vc = arg;
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(void)lfmtp;
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if (!vc)
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return false;
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return h264_packetization_mode(vc->variant) ==
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h264_packetization_mode(rfmtp);
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}
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