Пример #1
0
static void set_video_params(GstCaps *caps, OwrPayload *payload)
{
    guint width = 0, height = 0;
    gdouble framerate = 0.0;
    gint fps_n = 0, fps_d = 1;

    if (OWR_IS_VIDEO_PAYLOAD(payload)) {
        g_object_get(OWR_VIDEO_PAYLOAD(payload),
            "width", &width,
            "height", &height,
            "framerate", &framerate,
            NULL);
    }

    gst_caps_set_simple(caps, "width", G_TYPE_INT, width > 0 ? width : LIMITED_WIDTH, NULL);
    gst_caps_set_simple(caps, "height", G_TYPE_INT, height > 0 ? height : LIMITED_HEIGHT, NULL);

    framerate = framerate > 0.0 ? framerate : LIMITED_FRAMERATE;
    gst_util_double_to_fraction(framerate, &fps_n, &fps_d);
    gst_caps_set_simple(caps, "framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL);
}
Пример #2
0
GstCaps * _owr_payload_create_rtp_caps(OwrPayload *payload)
{
    OwrPayloadPrivate *priv;
    OwrMediaType media_type;
    GstCaps *caps = NULL;
    GEnumClass *enum_class;
    GEnumValue *enum_value;
    gchar *encoding_name;
    gboolean ccm_fir = FALSE, nack_pli = FALSE;

    g_return_val_if_fail(payload, NULL);
    priv = payload->priv;

    switch (priv->codec_type) {
    case OWR_CODEC_TYPE_PCMU:
        encoding_name = "PCMU";
        break;

    case OWR_CODEC_TYPE_PCMA:
        encoding_name = "PCMA";
        break;

    case OWR_CODEC_TYPE_OPUS:
        encoding_name = "X-GST-OPUS-DRAFT-SPITTKA-00";
        break;

    case OWR_CODEC_TYPE_H264:
        encoding_name = "H264";
        break;

    case OWR_CODEC_TYPE_VP8:
        encoding_name = "VP8-DRAFT-IETF-01";
        break;

    default:
        g_return_val_if_reached(NULL);
    }

    caps = gst_caps_new_simple("application/x-rtp",
        "encoding-name", G_TYPE_STRING, encoding_name,
        "payload", G_TYPE_INT, priv->payload_type,
        "clock-rate", G_TYPE_INT, priv->clock_rate,
        NULL);

    g_object_get(payload, "media-type", &media_type, NULL);
    enum_class = G_ENUM_CLASS(g_type_class_ref(OWR_TYPE_MEDIA_TYPE));
    enum_value = g_enum_get_value(enum_class, media_type);
    if (enum_value)
        gst_caps_set_simple(caps, "media", G_TYPE_STRING, enum_value->value_nick, NULL);
    g_type_class_unref(enum_class);

    if (OWR_IS_VIDEO_PAYLOAD(payload)) {
        g_object_get(OWR_VIDEO_PAYLOAD(payload), "ccm-fir", &ccm_fir, "nack-pli", &nack_pli, NULL);
        gst_caps_set_simple(caps, "rtcp-fb-ccm-fir", G_TYPE_BOOLEAN, ccm_fir, "rtcp-fb-nack-pli",
            G_TYPE_BOOLEAN, nack_pli, NULL);
    } else if (media_type == OWR_MEDIA_TYPE_AUDIO) {
        guint channels = 0;
        if (OWR_IS_AUDIO_PAYLOAD(payload))
            g_object_get(OWR_AUDIO_PAYLOAD(payload), "channels", &channels, NULL);
        if (channels > 0) {
            gst_caps_set_simple(caps,
                "channels", G_TYPE_INT, channels,
                NULL);
        }
    }

    return caps;
}