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typefind: Add typefinder for video/x-pva
https://bugzilla.gnome.org/show_bug.cgi?id=158719
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1 changed files with 28 additions and 3 deletions
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@ -1099,12 +1099,14 @@ aac_type_find (GstTypeFind * tf, gpointer unused)
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len = ((c.data[offset + 3] & 0x03) << 11) |
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(c.data[offset + 4] << 3) | ((c.data[offset + 5] & 0xe0) >> 5);
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if (len == 0 || !data_scan_ctx_ensure_data (tf, &c, len + 2)) {
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GST_DEBUG ("Wrong sync or next frame not within reach, len=%u", len);
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GST_DEBUG ("Wrong sync or next frame not within reach, len=%u",
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len);
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break;
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}
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snc = GST_READ_UINT16_BE (c.data + offset);
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if ((snc & 0xfff6) == 0xfff0) {
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GST_DEBUG ("Find %und Sync..probability is %u ", i, GST_TYPE_FIND_LIKELY + 5 * (i - 2));
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GST_DEBUG ("Find %und Sync..probability is %u ", i,
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GST_TYPE_FIND_LIKELY + 5 * (i - 2));
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offset += len;
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} else {
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break;
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@ -5177,6 +5179,26 @@ ssa_type_find (GstTypeFind * tf, gpointer private)
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g_free (str);
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}
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/*** video/x-pva ***/
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static GstStaticCaps pva_caps = GST_STATIC_CAPS ("video/x-pva");
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#define PVA_CAPS gst_static_caps_get(&pva_caps)
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static void
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pva_type_find (GstTypeFind * tf, gpointer private)
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{
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const guint8 *data;
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data = gst_type_find_peek (tf, 0, 5);
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if (data == NULL)
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return;
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if (data[0] == 'A' && data[1] == 'V' && data[2] < 3 && data[4] == 0x55)
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gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, PVA_CAPS);
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}
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/*** generic typefind for streams that have some data at a specific position***/
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typedef struct
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{
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@ -5561,6 +5583,9 @@ plugin_init (GstPlugin * plugin)
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TYPE_FIND_REGISTER (plugin, "application/x-ssa", GST_RANK_SECONDARY,
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ssa_type_find, "ssa,ass", NULL, NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "video/x-pva", GST_RANK_SECONDARY,
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pva_type_find, "pva", PVA_CAPS, NULL, NULL);
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return TRUE;
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}
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