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typefinding: more fine-grained ogg typefinding
Typefind to audio/ogg, video/ogg, etc. Also change application/x-annodex to application/annodex. See http://wiki.xiph.org/MIME_Types_and_File_Extensions
This commit is contained in:
Tim-Philipp Müller
parent
66615a8a6a
commit
497d87061d
1 changed files with 109 additions and 14 deletions
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@ -3589,30 +3589,124 @@ dv_type_find (GstTypeFind * tf, gpointer private)
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}
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/*** application/ogg and application/x-annodex ***/
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static GstStaticCaps ogg_caps = GST_STATIC_CAPS ("application/ogg");
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static GstStaticCaps annodex_caps = GST_STATIC_CAPS ("application/x-annodex");
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/*** Ogg and Annodex variants ***/
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static GstStaticCaps ogg_annodex_caps =
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GST_STATIC_CAPS ("application/ogg;application/x-annodex");
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GST_STATIC_CAPS ("application/ogg;video/ogg;audio/ogg;"
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"application/annodex;audio/annodex;video/annodex;application/kate");
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#define OGGANX_CAPS (gst_static_caps_get(&ogg_annodex_caps))
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typedef enum
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{
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OGG_AUDIO = 0,
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OGG_VIDEO,
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OGG_KATE,
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OGG_OTHER,
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OGG_SKELETON,
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OGG_ANNODEX,
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OGG_NUM
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} GstOggStreamType;
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static void
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ogganx_type_find (GstTypeFind * tf, gpointer private)
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{
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const guint8 *data = gst_type_find_peek (tf, 0, 4);
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const gchar *media_type;
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DataScanCtx c = { 0, NULL, 0 };
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guint ogg_syncs = 0;
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guint hdr_count[OGG_NUM] = { 0, };
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static const struct
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{
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const gchar marker[10];
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guint8 marker_size;
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GstOggStreamType stream_type;
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} markers[] = {
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{
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"\001vorbis", 7, OGG_AUDIO}, {
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"\200theora", 7, OGG_VIDEO}, {
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"fLaC", 4, OGG_AUDIO}, {
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"\177FLAC", 5, OGG_AUDIO}, {
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"Speex", 5, OGG_AUDIO}, {
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"CMML\0\0\0\0", 8, OGG_OTHER}, {
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"PCM ", 8, OGG_AUDIO}, {
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"Annodex", 7, OGG_ANNODEX}, {
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"fishead", 7, OGG_SKELETON}, {
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"AnxData", 7, OGG_ANNODEX}, {
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"CELT ", 8, OGG_AUDIO}, {
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"\200kate\0\0\0", 8, OGG_KATE}, {
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"BBCD\0", 5, OGG_VIDEO}, {
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"OVP80\1\1", 7, OGG_VIDEO}, {
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"OpusHead", 8, OGG_AUDIO}, {
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"\001audio\0\0\0", 9, OGG_AUDIO}, {
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"\001video\0\0\0", 9, OGG_VIDEO}, {
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"\001text\0\0\0", 9, OGG_OTHER}
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};
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if ((data != NULL) && (memcmp (data, "OggS", 4) == 0)) {
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while (c.offset < 4096 && data_scan_ctx_ensure_data (tf, &c, 64)) {
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guint size, i;
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/* Check for an annodex fishbone header */
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data = gst_type_find_peek (tf, 28, 8);
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if (data && memcmp (data, "fishead\0", 8) == 0)
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM,
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gst_static_caps_get (&annodex_caps));
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if (memcmp (c.data, "OggS", 5) != 0)
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break;
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM,
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gst_static_caps_get (&ogg_caps));
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++ogg_syncs;
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/* check if BOS */
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if (c.data[5] != 0x02)
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break;
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/* headers should only have one segment */
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if (c.data[26] != 1)
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break;
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size = c.data[27];
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if (size < 8)
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break;
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data_scan_ctx_advance (tf, &c, 28);
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if (!data_scan_ctx_ensure_data (tf, &c, MAX (size, 8)))
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break;
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for (i = 0; i < G_N_ELEMENTS (markers); ++i) {
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if (memcmp (c.data, markers[i].marker, markers[i].marker_size) == 0) {
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++hdr_count[markers[i].stream_type];
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break;
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}
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}
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if (i == G_N_ELEMENTS (markers)) {
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GST_MEMDUMP ("unknown Ogg stream marker", c.data, size);
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++hdr_count[OGG_OTHER];
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}
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data_scan_ctx_advance (tf, &c, size);
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}
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if (ogg_syncs == 0)
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return;
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/* FIXME: what about XSPF? */
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if (hdr_count[OGG_ANNODEX] > 0) {
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if (hdr_count[OGG_VIDEO] > 0)
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media_type = "video/annodex";
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else if (hdr_count[OGG_AUDIO] > 0)
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media_type = "audio/annodex";
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else
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media_type = "application/annodex";
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} else if (hdr_count[OGG_VIDEO] > 0) {
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media_type = "video/ogg";
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} else if (hdr_count[OGG_AUDIO] > 0) {
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media_type = "audio/ogg";
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} else if (hdr_count[OGG_KATE] > 0 && hdr_count[OGG_OTHER] == 0) {
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media_type = "application/kate";
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} else {
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media_type = "application/ogg";
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}
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GST_INFO ("found %s (audio:%u, video:%u, annodex:%u, skeleton:%u, other:%u)",
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media_type, hdr_count[OGG_AUDIO], hdr_count[OGG_VIDEO],
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hdr_count[OGG_ANNODEX], hdr_count[OGG_SKELETON], hdr_count[OGG_OTHER]);
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gst_type_find_suggest_simple (tf, GST_TYPE_FIND_MAXIMUM, media_type, NULL);
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}
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/*** audio/x-vorbis ***/
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@ -4455,7 +4549,8 @@ plugin_init (GstPlugin * plugin)
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TYPE_FIND_REGISTER (plugin, "video/mpegts", GST_RANK_PRIMARY,
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mpeg_ts_type_find, "ts,mts", MPEGTS_CAPS, NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "application/ogg", GST_RANK_PRIMARY,
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ogganx_type_find, "anx,ogg,ogm", OGGANX_CAPS, NULL, NULL);
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ogganx_type_find, "ogg,oga,ogv,ogm,ogx,spx,anx,axa,axv", OGGANX_CAPS,
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NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "video/mpeg-elementary", GST_RANK_MARGINAL,
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mpeg_video_stream_type_find, "mpv,mpeg,mpg", MPEG_VIDEO_CAPS, NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "video/mpeg4", GST_RANK_PRIMARY,
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