Esempio n. 1
0
static GstCaps *
gst_rtp_opus_pay_getcaps (GstRTPBasePayload * payload,
    GstPad * pad, GstCaps * filter)
{
  GstCaps *caps, *peercaps, *tcaps;
  GstStructure *s;
  const gchar *stereo;

  if (pad == GST_RTP_BASE_PAYLOAD_SRCPAD (payload))
    return
        GST_RTP_BASE_PAYLOAD_CLASS (gst_rtp_opus_pay_parent_class)->get_caps
        (payload, pad, filter);

  tcaps = gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload));
  peercaps = gst_pad_peer_query_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload),
      tcaps);
  gst_caps_unref (tcaps);
  if (!peercaps)
    return
        GST_RTP_BASE_PAYLOAD_CLASS (gst_rtp_opus_pay_parent_class)->get_caps
        (payload, pad, filter);

  if (gst_caps_is_empty (peercaps))
    return peercaps;

  caps = gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SINKPAD (payload));

  s = gst_caps_get_structure (peercaps, 0);
  stereo = gst_structure_get_string (s, "stereo");
  if (stereo != NULL) {
    caps = gst_caps_make_writable (caps);

    if (!strcmp (stereo, "1")) {
      GstCaps *caps2 = gst_caps_copy (caps);

      gst_caps_set_simple (caps, "channels", G_TYPE_INT, 2, NULL);
      gst_caps_set_simple (caps2, "channels", G_TYPE_INT, 1, NULL);
      caps = gst_caps_merge (caps, caps2);
    } else if (!strcmp (stereo, "0")) {
      GstCaps *caps2 = gst_caps_copy (caps);

      gst_caps_set_simple (caps, "channels", G_TYPE_INT, 1, NULL);
      gst_caps_set_simple (caps2, "channels", G_TYPE_INT, 2, NULL);
      caps = gst_caps_merge (caps, caps2);
    }
  }
  gst_caps_unref (peercaps);

  if (filter) {
    GstCaps *tmp = gst_caps_intersect_full (caps, filter,
        GST_CAPS_INTERSECT_FIRST);
    gst_caps_unref (caps);
    caps = tmp;
  }

  GST_DEBUG_OBJECT (payload, "Returning caps: %" GST_PTR_FORMAT, caps);
  return caps;
}
Esempio n. 2
0
static GstCaps *
gst_rtp_h263p_pay_sink_getcaps (GstRTPBasePayload * payload, GstPad * pad,
    GstCaps * filter)
{
  GstRtpH263PPay *rtph263ppay;
  GstCaps *caps = NULL, *templ;
  GstCaps *peercaps = NULL;
  GstCaps *intersect = NULL;
  guint i;

  rtph263ppay = GST_RTP_H263P_PAY (payload);

  peercaps =
      gst_pad_peer_query_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload), filter);

  /* if we're just outputting to udpsink or fakesink or so, we should also
   * accept any input compatible with our sink template caps */
  if (!peercaps || gst_caps_is_any (peercaps))
    return
        gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SINKPAD (payload));

  /* We basically need to differentiate two use-cases here: One where there's
   * a capsfilter after the payloader with caps created from an SDP; in this
   * case the filter caps are fixed and we want to signal to an encoder what
   * we want it to produce. The second case is simply payloader ! depayloader
   * where we are dealing with the depayloader's template caps. In this case
   * we should accept any input compatible with our sink template caps. */
  if (!gst_caps_is_fixed (peercaps))
    return
        gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SINKPAD (payload));

  templ = gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload));
  intersect = gst_caps_intersect (peercaps, templ);
  gst_caps_unref (peercaps);
  gst_caps_unref (templ);

  if (gst_caps_is_empty (intersect))
    return intersect;

  caps = gst_caps_new_empty ();
  for (i = 0; i < gst_caps_get_size (intersect); i++) {
    GstStructure *s = gst_caps_get_structure (intersect, i);
    const gchar *encoding_name = gst_structure_get_string (s, "encoding-name");

    if (!strcmp (encoding_name, "H263-2000")) {
      const gchar *profile_str = gst_structure_get_string (s, "profile");
      const gchar *level_str = gst_structure_get_string (s, "level");
      int profile = 0;
      int level = 0;

      if (profile_str && level_str) {
        gboolean i = FALSE, j = FALSE, l = FALSE, t = FALSE, f = FALSE,
            v = FALSE;
        GstStructure *new_s = gst_structure_new ("video/x-h263",
            "variant", G_TYPE_STRING, "itu",
            NULL);

        profile = atoi (profile_str);
        level = atoi (level_str);

        /* These profiles are defined in the H.263 Annex X */
        switch (profile) {
          case 0:
            /* The Baseline Profile (Profile 0) */
            break;
          case 1:
            /* H.320 Coding Efficiency Version 2 Backward-Compatibility Profile
             * (Profile 1)
             * Baseline + Annexes I, J, L.4 and T
             */
            i = j = l = t = TRUE;
            break;
          case 2:
            /* Version 1 Backward-Compatibility Profile (Profile 2)
             * Baseline + Annex F
             */
            i = j = l = t = f = TRUE;
            break;
          case 3:
            /* Version 2 Interactive and Streaming Wireless Profile
             * Baseline + Annexes I, J, T
             */
            i = j = t = TRUE;
            break;
          case 4:
            /* Version 3 Interactive and Streaming Wireless Profile (Profile 4)
             * Baseline + Annexes I, J, T, V, W.6.3.8,
             */
            /* Missing W.6.3.8 */
            i = j = t = v = TRUE;
            break;
          case 5:
            /* Conversational High Compression Profile (Profile 5)
             * Baseline + Annexes F, I, J, L.4, T, D, U
             */
            /* Missing D, U */
            f = i = j = l = t = TRUE;
            break;
          case 6:
            /* Conversational Internet Profile (Profile 6)
             * Baseline + Annexes F, I, J, L.4, T, D, U and
             * K with arbitratry slice ordering
             */
            /* Missing D, U, K with arbitratry slice ordering */
            f = i = j = l = t = TRUE;
            break;
          case 7:
            /* Conversational Interlace Profile (Profile 7)
             * Baseline + Annexes F, I, J, L.4, T, D, U,  W.6.3.11
             */
            /* Missing D, U, W.6.3.11 */
            f = i = j = l = t = TRUE;
            break;
          case 8:
            /* High Latency Profile (Profile 8)
             * Baseline + Annexes F, I, J, L.4, T, D, U, P.5, O.1.1 and
             * K with arbitratry slice ordering
             */
            /* Missing D, U, P.5, O.1.1 */
            f = i = j = l = t = TRUE;
            break;
        }


        if (f || i || j || t || l || v) {
          GValue list = { 0 };
          GValue vstr = { 0 };

          g_value_init (&list, GST_TYPE_LIST);
          g_value_init (&vstr, G_TYPE_STRING);

          g_value_set_static_string (&vstr, "h263");
          gst_value_list_append_value (&list, &vstr);
          g_value_set_static_string (&vstr, "h263p");
          gst_value_list_append_value (&list, &vstr);

          if (l || v) {
            g_value_set_static_string (&vstr, "h263pp");
            gst_value_list_append_value (&list, &vstr);
          }
          g_value_unset (&vstr);

          gst_structure_set_value (new_s, "h263version", &list);
          g_value_unset (&list);
        } else {
          gst_structure_set (new_s, "h263version", G_TYPE_STRING, "h263", NULL);
        }


        if (!f)
          gst_structure_set (new_s, "annex-f", G_TYPE_BOOLEAN, FALSE, NULL);
        if (!i)
          gst_structure_set (new_s, "annex-i", G_TYPE_BOOLEAN, FALSE, NULL);
        if (!j)
          gst_structure_set (new_s, "annex-j", G_TYPE_BOOLEAN, FALSE, NULL);
        if (!t)
          gst_structure_set (new_s, "annex-t", G_TYPE_BOOLEAN, FALSE, NULL);
        if (!l)
          gst_structure_set (new_s, "annex-l", G_TYPE_BOOLEAN, FALSE, NULL);
        if (!v)
          gst_structure_set (new_s, "annex-v", G_TYPE_BOOLEAN, FALSE, NULL);


        if (level <= 10 || level == 45) {
          gst_structure_set (new_s,
              "width", GST_TYPE_INT_RANGE, 1, 176,
              "height", GST_TYPE_INT_RANGE, 1, 144,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 30000, 2002, NULL);
          caps = gst_caps_merge_structure (caps, new_s);
        } else if (level <= 20) {
          GstStructure *s_copy = gst_structure_copy (new_s);

          gst_structure_set (new_s,
              "width", GST_TYPE_INT_RANGE, 1, 352,
              "height", GST_TYPE_INT_RANGE, 1, 288,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 30000, 2002, NULL);
          caps = gst_caps_merge_structure (caps, new_s);

          gst_structure_set (s_copy,
              "width", GST_TYPE_INT_RANGE, 1, 176,
              "height", GST_TYPE_INT_RANGE, 1, 144,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 30000, 1001, NULL);
          caps = gst_caps_merge_structure (caps, s_copy);
        } else if (level <= 40) {

          gst_structure_set (new_s,
              "width", GST_TYPE_INT_RANGE, 1, 352,
              "height", GST_TYPE_INT_RANGE, 1, 288,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 30000, 1001, NULL);
          caps = gst_caps_merge_structure (caps, new_s);
        } else if (level <= 50) {
          GstStructure *s_copy = gst_structure_copy (new_s);

          gst_structure_set (new_s,
              "width", GST_TYPE_INT_RANGE, 1, 352,
              "height", GST_TYPE_INT_RANGE, 1, 288,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 50, 1, NULL);
          caps = gst_caps_merge_structure (caps, new_s);

          gst_structure_set (s_copy,
              "width", GST_TYPE_INT_RANGE, 1, 352,
              "height", GST_TYPE_INT_RANGE, 1, 240,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 60000, 1001, NULL);
          caps = gst_caps_merge_structure (caps, s_copy);
        } else if (level <= 60) {
          GstStructure *s_copy = gst_structure_copy (new_s);

          gst_structure_set (new_s,
              "width", GST_TYPE_INT_RANGE, 1, 720,
              "height", GST_TYPE_INT_RANGE, 1, 288,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 50, 1, NULL);
          caps = gst_caps_merge_structure (caps, new_s);

          gst_structure_set (s_copy,
              "width", GST_TYPE_INT_RANGE, 1, 720,
              "height", GST_TYPE_INT_RANGE, 1, 240,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 60000, 1001, NULL);
          caps = gst_caps_merge_structure (caps, s_copy);
        } else if (level <= 70) {
          GstStructure *s_copy = gst_structure_copy (new_s);

          gst_structure_set (new_s,
              "width", GST_TYPE_INT_RANGE, 1, 720,
              "height", GST_TYPE_INT_RANGE, 1, 576,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 50, 1, NULL);
          caps = gst_caps_merge_structure (caps, new_s);

          gst_structure_set (s_copy,
              "width", GST_TYPE_INT_RANGE, 1, 720,
              "height", GST_TYPE_INT_RANGE, 1, 480,
              "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 60000, 1001, NULL);
          caps = gst_caps_merge_structure (caps, s_copy);
        } else {
          caps = gst_caps_merge_structure (caps, new_s);
        }

      } else {
        GstStructure *new_s = gst_structure_new ("video/x-h263",
            "variant", G_TYPE_STRING, "itu",
            "h263version", G_TYPE_STRING, "h263",
            NULL);

        GST_DEBUG_OBJECT (rtph263ppay, "No profile or level specified"
            " for H263-2000, defaulting to baseline H263");

        caps = gst_caps_merge_structure (caps, new_s);
      }
    } else {
      gboolean f = FALSE, i = FALSE, j = FALSE, t = FALSE;
      /* FIXME: ffmpeg support the Appendix K too, how do we express it ?
       *   guint k;
       */
      const gchar *str;
      GstStructure *new_s = gst_structure_new ("video/x-h263",
          "variant", G_TYPE_STRING, "itu",
          NULL);
      gboolean added = FALSE;

      str = gst_structure_get_string (s, "f");
      if (str && !strcmp (str, "1"))
        f = TRUE;

      str = gst_structure_get_string (s, "i");
      if (str && !strcmp (str, "1"))
        i = TRUE;

      str = gst_structure_get_string (s, "j");
      if (str && !strcmp (str, "1"))
        j = TRUE;

      str = gst_structure_get_string (s, "t");
      if (str && !strcmp (str, "1"))
        t = TRUE;

      if (f || i || j || t) {
        GValue list = { 0 };
        GValue vstr = { 0 };

        g_value_init (&list, GST_TYPE_LIST);
        g_value_init (&vstr, G_TYPE_STRING);

        g_value_set_static_string (&vstr, "h263");
        gst_value_list_append_value (&list, &vstr);
        g_value_set_static_string (&vstr, "h263p");
        gst_value_list_append_value (&list, &vstr);
        g_value_unset (&vstr);

        gst_structure_set_value (new_s, "h263version", &list);
        g_value_unset (&list);
      } else {
        gst_structure_set (new_s, "h263version", G_TYPE_STRING, "h263", NULL);
      }

      if (!f)
        gst_structure_set (new_s, "annex-f", G_TYPE_BOOLEAN, FALSE, NULL);
      if (!i)
        gst_structure_set (new_s, "annex-i", G_TYPE_BOOLEAN, FALSE, NULL);
      if (!j)
        gst_structure_set (new_s, "annex-j", G_TYPE_BOOLEAN, FALSE, NULL);
      if (!t)
        gst_structure_set (new_s, "annex-t", G_TYPE_BOOLEAN, FALSE, NULL);


      str = gst_structure_get_string (s, "custom");
      if (str) {
        unsigned int xmax, ymax, mpi;
        if (sscanf (str, "%u,%u,%u", &xmax, &ymax, &mpi) == 3) {
          if (xmax % 4 && ymax % 4 && mpi >= 1 && mpi <= 32) {
            caps = caps_append (caps, new_s, xmax, ymax, mpi);
            added = TRUE;
          } else {
            GST_WARNING_OBJECT (rtph263ppay, "Invalid custom framesize/MPI"
                " %u x %u at %u, ignoring", xmax, ymax, mpi);
          }
        } else {
          GST_WARNING_OBJECT (rtph263ppay, "Invalid custom framesize/MPI: %s,"
              " ignoring", str);
        }
      }

      str = gst_structure_get_string (s, "16cif");
      if (str) {
        int mpi = atoi (str);
        caps = caps_append (caps, new_s, 1408, 1152, mpi);
        added = TRUE;
      }

      str = gst_structure_get_string (s, "4cif");
      if (str) {
        int mpi = atoi (str);
        caps = caps_append (caps, new_s, 704, 576, mpi);
        added = TRUE;
      }

      str = gst_structure_get_string (s, "cif");
      if (str) {
        int mpi = atoi (str);
        caps = caps_append (caps, new_s, 352, 288, mpi);
        added = TRUE;
      }

      str = gst_structure_get_string (s, "qcif");
      if (str) {
        int mpi = atoi (str);
        caps = caps_append (caps, new_s, 176, 144, mpi);
        added = TRUE;
      }

      str = gst_structure_get_string (s, "sqcif");
      if (str) {
        int mpi = atoi (str);
        caps = caps_append (caps, new_s, 128, 96, mpi);
        added = TRUE;
      }

      if (added)
        gst_structure_free (new_s);
      else
        caps = gst_caps_merge_structure (caps, new_s);
    }
  }

  gst_caps_unref (intersect);

  return caps;
}