static int amr_init(Track *track)
{
char *config = NULL;
char *sdp_value;
/*get config content if has*/
if(track->properties.extradata_len)
{
config = extradata2config(&track->properties);
if (!config)
return ERR_PARSE;
sdp_value = g_strdup_printf("octet-align=1; config=%s", config);
g_free(config);
} else {
sdp_value = g_strdup_printf("octet-align=1");
}
track_add_sdp_field(track, fmtp, sdp_value);
track->properties.clock_rate = 8000;
track_add_sdp_field(track, rtpmap,
g_strdup_printf ("AMR/%d",
track->properties.clock_rate));
return ERR_NOERROR;
}
static int h263_init(Track *track)
{
track_add_sdp_field(track, rtpmap,
g_strdup_printf ("H263-1998/%d",
track->properties.clock_rate));
return ERR_NOERROR;
}
static int h264_init(Track *track)
{
h264_priv *priv;
char *sprop = NULL;
int err = ERR_ALLOC;
if (track->properties.extradata_len == 0) {
fnc_log(FNC_LOG_WARN, "[h264] No Extradata, unsupported\n");
return ERR_UNSUPPORTED_PT;
}
priv = g_slice_new(h264_priv);
if(track->properties.extradata[0] == 1) {
if (track->properties.extradata_len < 7) goto err_alloc;
priv->nal_length_size = (track->properties.extradata[4]&0x03)+1;
priv->is_avc = 1;
sprop = encode_avc1_header(track->properties.extradata,
track->properties.extradata_len, FU_A);
if (sprop == NULL) goto err_alloc;
} else {
sprop = encode_header(track->properties.extradata,
track->properties.extradata_len, FU_A);
if (sprop == NULL) goto err_alloc;
}
track_add_sdp_field(track, fmtp, sprop);
track_add_sdp_field(track, rtpmap,
g_strdup_printf ("H264/%d",track->properties.clock_rate));
track->private_data = priv;
return ERR_NOERROR;
err_alloc:
g_slice_free(h264_priv, priv);
return err;
}
static int jma_init(Track *track)
{
gchar *rtpmap_str, *sdp_rtpmap;
struct codec_t *code;
gint pt;
code = (struct codec_t*)track->properties.extradata;
printf("jma_init()..\n");
if (code->len3)
{
rtpmap_str = (gchar*)&code->data[0] + code->len1 + code->len2;
sscanf(rtpmap_str, "%d", &pt);
if (pt == PCMA_PT || pt == PCMU_PT)
track->properties.payload_type = pt;
rtpmap_str = strstr(rtpmap_str, " "); /* skip pt */
if (rtpmap_str)
{
++rtpmap_str;
sdp_rtpmap = g_strdup(rtpmap_str);
}
else
sdp_rtpmap = g_strdup("PCMX/8000/1");
strcpy(track->properties.encoding_name, "PCMX");
track_add_sdp_field(track, rtpmap, sdp_rtpmap);
}
else
{
strcpy(track->properties.encoding_name, "PCMA");
sdp_rtpmap = g_strdup_printf("%s/%d/%d",
track->properties.encoding_name,
8000 /* sample_rate */,
1 /* audio channels */);
track->properties.payload_type = PCMA_PT;
track_add_sdp_field(track, rtpmap, sdp_rtpmap);
}
return 0;
}
static int simple_init(Track *track)
{
char encodingParamsPart[21];
memset(encodingParamsPart, 0, sizeof(encodingParamsPart));
if(track->properties.media_type == MP_audio){
if(track->properties.audio_channels > 1){
sprintf(encodingParamsPart, "/%d",
track->properties.audio_channels);
}
}
track_add_sdp_field(track, rtpmap,
g_strdup_printf ("%s/%d%s",
track->properties.encoding_name,
track->properties.clock_rate,
encodingParamsPart));
return ERR_NOERROR;
}
