mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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typefind: improved and extended typefinder for module music formats
introduced new caps: audio/x-mod, modtype : { xm, okt, mod, ptm, ... }
https://bugzilla.gnome.org/show_bug.cgi?id=706061
This commit is contained in:
Carlos Rafael Giani
Sebastian Dröge
parent
c6fd304eb6
commit
e8e8fa22f3
1 changed files with 183 additions and 41 deletions
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@ -3157,58 +3157,165 @@ static void
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mod_type_find (GstTypeFind * tf, gpointer unused)
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{
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const guint8 *data;
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GstTypeFindProbability probability;
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const char *mod_type = NULL;
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/* MOD */
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if ((data = gst_type_find_peek (tf, 1080, 4)) != NULL) {
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/* Protracker and variants */
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if ((memcmp (data, "M.K.", 4) == 0) || (memcmp (data, "M!K!", 4) == 0) ||
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if ((memcmp (data, "M.K.", 4) == 0) ||
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(memcmp (data, "M!K!", 4) == 0) ||
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(memcmp (data, "M&K!", 4) == 0) || (memcmp (data, "N.T.", 4) == 0) ||
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/* Star Tracker */
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(memcmp (data, "FLT", 3) == 0 && isdigit (data[3])) ||
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(memcmp (data, "EXO", 3) == 0 && isdigit (data[3])) ||
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/* Oktalyzer (Amiga) */
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(memcmp (data, "OKTA", 4) == 0) ||
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(memcmp (data, "OKTA", 4) == 0) || (memcmp (data, "OCTA", 4) == 0) ||
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/* Oktalyser (Atari) */
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(memcmp (data, "CD81", 4) == 0) ||
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/* Taketracker */
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(memcmp (data, "TDZ", 3) == 0 && isdigit (data[3])) ||
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/* Fasttracker */
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(memcmp (data + 1, "CHN", 3) == 0 && isdigit (data[0])) ||
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/* Fasttracker or Taketracker */
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(memcmp (data + 2, "CH", 2) == 0 && isdigit (data[0])
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&& isdigit (data[1])) || (memcmp (data + 2, "CN", 2) == 0
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&& isdigit (data[0]) && isdigit (data[1]))) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "mod";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* J2B (Jazz Jackrabbit 2) */
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if ((data = gst_type_find_peek (tf, 0, 8)) != NULL) {
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if ((memcmp (data, "MUSE\xDE\xAD", 4) == 0) &&
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((memcmp (data + 6, "\xBE\xEF", 2) == 0) ||
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(memcmp (data + 6, "\xBA\xBE", 2) == 0))) {
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mod_type = "j2b";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* AMS (Velvet Studio) */
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if ((data = gst_type_find_peek (tf, 0, 7)) != NULL) {
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if (memcmp (data, "AMShdr\x1A", 7) == 0) {
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mod_type = "velvet-ams";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* AMS (Extreme Tracker) */
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if ((data = gst_type_find_peek (tf, 0, 9)) != NULL) {
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if ((memcmp (data, "Extreme", 7) == 0) && (data[8] == 1)) {
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mod_type = "extreme-ams";
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probability = GST_TYPE_FIND_LIKELY;
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goto suggest_audio_mod_caps;
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}
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}
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/* ULT (Ultratracker) */
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if ((data = gst_type_find_peek (tf, 0, 14)) != NULL) {
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if (memcmp (data, "MAS_UTrack_V00", 14) == 0) {
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mod_type = "ult";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* DIGI (DigiBooster) */
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if ((data = gst_type_find_peek (tf, 0, 20)) != NULL) {
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if (memcmp (data, "DIGI Booster module\0", 20) == 0) {
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mod_type = "digi";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* PTM (PolyTracker) */
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if ((data = gst_type_find_peek (tf, 0x2C, 4)) != NULL) {
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if (memcmp (data, "PTMF", 4) == 0) {
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mod_type = "ptm";
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probability = GST_TYPE_FIND_LIKELY;
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goto suggest_audio_mod_caps;
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}
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}
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/* XM */
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if ((data = gst_type_find_peek (tf, 0, 38)) != NULL) {
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if (memcmp (data, "Extended Module: ", 17) == 0 && data[37] == 0x1A) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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if ((memcmp (data, "Extended Module: ", 17) == 0) && (data[37] == 0x1A)) {
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mod_type = "xm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* OKT */
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if (data || (data = gst_type_find_peek (tf, 0, 8)) != NULL) {
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if (memcmp (data, "OKTASONG", 8) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "okt";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* Various formats with a 4-byte magic ID at the beginning of the file */
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if (data || (data = gst_type_find_peek (tf, 0, 4)) != NULL) {
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/* PSM (Protracker Studio PSM) */
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if (memcmp (data, "PSM", 3) == 0) {
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unsigned char fbyte = data[3];
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if ((fbyte == ' ') || (fbyte == 254)) {
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mod_type = "psm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* 669 */
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if ((memcmp (data, "if", 2) == 0) || (memcmp (data, "JN", 2) == 0)) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS);
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return;
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mod_type = "669";
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probability = GST_TYPE_FIND_LIKELY;
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goto suggest_audio_mod_caps;
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}
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/* AMF */
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if ((memcmp (data, "AMF", 3) == 0 && data[3] > 10 && data[3] < 14) ||
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/* IT */
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(memcmp (data, "IMPM", 4) == 0) ||
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/* MED */
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(memcmp (data, "MMD0", 4) == 0) || (memcmp (data, "MMD1", 4) == 0) ||
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/* MTM */
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(memcmp (data, "MTM", 3) == 0)) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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if ((memcmp (data, "AMF", 3) == 0) && (data[3] > 10) && (data[3] < 14)) {
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mod_type = "dsmi-amf";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* IT */
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if (memcmp (data, "IMPM", 4) == 0) {
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mod_type = "it";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* DBM (DigiBooster Pro) */
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if (memcmp (data, "DBM0", 4) == 0) {
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mod_type = "dbm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* MDL (DigiTrakker) */
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if (memcmp (data, "DMDL", 4) == 0) {
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mod_type = "mdl";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* MT2 (MadTracker 2.0) */
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if (memcmp (data, "MT20", 4) == 0) {
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mod_type = "mt2";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* DMF (X-Tracker) */
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if (memcmp (data, "DDMF", 4) == 0) {
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mod_type = "dmf";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* MED */
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if ((memcmp (data, "MMD0", 4) == 0) || (memcmp (data, "MMD1", 4) == 0)) {
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mod_type = "med";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* MTM */
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if (memcmp (data, "MTM", 3) == 0) {
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mod_type = "mtm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* DSM */
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if (memcmp (data, "RIFF", 4) == 0) {
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@ -3216,23 +3323,33 @@ mod_type_find (GstTypeFind * tf, gpointer unused)
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if (data2) {
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if (memcmp (data2, "DSMF", 4) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "dsm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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}
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/* FAR (Farandole) */
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if (memcmp (data, "FAR\xFE", 4) == 0) {
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mod_type = "far";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* FAM */
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if (memcmp (data, "FAM\xFE", 4) == 0) {
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const guint8 *data2 = gst_type_find_peek (tf, 44, 3);
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if (data2) {
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if (memcmp (data2, "compare", 3) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "fam";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* otherwise do not suggest anything */
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} else {
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS);
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return;
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mod_type = "fam";
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probability = GST_TYPE_FIND_LIKELY;
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goto suggest_audio_mod_caps;
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}
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}
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/* GDM */
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@ -3241,27 +3358,40 @@ mod_type_find (GstTypeFind * tf, gpointer unused)
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if (data2) {
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if (memcmp (data2, "GMFS", 4) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "gdm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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/* otherwise do not suggest anything */
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} else {
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS);
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return;
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mod_type = "gdm";
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probability = GST_TYPE_FIND_LIKELY;
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goto suggest_audio_mod_caps;
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}
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}
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}
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/* FAR (Farandole) (secondary detection) */
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if ((data = gst_type_find_peek (tf, 44, 3)) != NULL) {
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if (memcmp (data, "\x0D\x0A\x1A", 3) == 0) {
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mod_type = "far";
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probability = GST_TYPE_FIND_POSSIBLE;
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goto suggest_audio_mod_caps;
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}
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}
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/* IMF */
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if ((data = gst_type_find_peek (tf, 60, 4)) != NULL) {
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if (memcmp (data, "IM10", 4) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "imf";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* S3M */
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if ((data = gst_type_find_peek (tf, 44, 4)) != NULL) {
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if (memcmp (data, "SCRM", 4) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "s3m";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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/* STM */
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@ -3274,18 +3404,30 @@ mod_type_find (GstTypeFind * tf, gpointer unused)
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return;
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if ((stmtype = gst_type_find_peek (tf, 29, 1)) == NULL)
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return;
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if (*id == 0x1A && *stmtype == 2)
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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if (*id == 0x1A && *stmtype == 2) {
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mod_type = "stm";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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}
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/* AMF */
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if ((data = gst_type_find_peek (tf, 0, 19)) != NULL) {
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if (memcmp (data, "ASYLUM Music Format", 19) == 0) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
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return;
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mod_type = "asylum-amf";
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probability = GST_TYPE_FIND_MAXIMUM;
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goto suggest_audio_mod_caps;
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}
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}
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suggest_audio_mod_caps:
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if (mod_type != NULL) {
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GstCaps *caps = gst_caps_new_simple ("audio/x-mod",
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"type", G_TYPE_STRING, mod_type, NULL);
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gst_type_find_suggest (tf, probability, caps);
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gst_caps_unref (caps);
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}
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}
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/*** application/x-shockwave-flash ***/
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@ -5173,8 +5315,8 @@ plugin_init (GstPlugin * plugin)
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TYPE_FIND_REGISTER (plugin, "audio/x-ttafile", GST_RANK_PRIMARY,
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tta_type_find, "tta", TTA_CAPS, NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "audio/x-mod", GST_RANK_SECONDARY, mod_type_find,
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"669,amf,dsm,gdm,far,imf,it,med,mod,mtm,okt,sam,s3m,stm,stx,ult,xm",
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MOD_CAPS, NULL, NULL);
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"669,amf,ams,dbm,digi,dmf,dsm,gdm,far,imf,it,j2b,mdl,med,mod,mt2,mtm,"
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"okt,psm,ptm,sam,s3m,stm,stx,ult,xm", MOD_CAPS, NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "audio/mpeg", GST_RANK_PRIMARY, mp3_type_find,
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"mp3,mp2,mp1,mpga", MP3_CAPS, NULL, NULL);
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TYPE_FIND_REGISTER (plugin, "audio/x-ac3", GST_RANK_PRIMARY, ac3_type_find,
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