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gst/typefind/gsttypefindfunctions.c: Add wavpack and spc typefind functions from 0.8 branch.

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Original commit message from CVS:
* gst/typefind/gsttypefindfunctions.c: (wavpack_type_find),
(plugin_init):
Add wavpack and spc typefind functions from 0.8 branch.
This commit is contained in:
Tim-Philipp Müller 2005-10-09 19:16:15 +00:00
parent bca499edda
commit 3869244aca
2 changed files with 78 additions and 0 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-10-09 Tim-Philipp Müller <tim at centricular dot net>
* gst/typefind/gsttypefindfunctions.c: (wavpack_type_find),
(plugin_init):
Add wavpack and spc typefind functions from 0.8 branch.
2005-10-09 Tim-Philipp Müller <tim at centricular dot net>
* gst/typefind/gsttypefindfunctions.c: (tar_type_find),

72
gst/typefind/gsttypefindfunctions.c
View file

@ -529,6 +529,68 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
}
}
/*** wavpack ***/
static GstStaticCaps wavpack_caps =
GST_STATIC_CAPS ("audio/x-wavpack, framed = (boolean) false");
#define WAVPACK_CAPS (gst_static_caps_get(&wavpack_caps))
static GstStaticCaps wavpack_correction_caps =
GST_STATIC_CAPS ("audio/x-wavpack-correction, framed = (boolean) false");
#define WAVPACK_CORRECTION_CAPS (gst_static_caps_get(&wavpack_correction_caps))
static void
wavpack_type_find (GstTypeFind * tf, gpointer unused)
{
guint8 *data = gst_type_find_peek (tf, 0, 32);
if (!data)
return;
if (data[0] == 'w' && data[1] == 'v' && data[2] == 'p' && data[3] == 'k') {
guint32 blocksize, sublen;
gint32 left;
blocksize = GST_READ_UINT32_LE (data + 4);
/* peek from offset 0, otherwise it won't work with apedemux */
data = gst_type_find_peek (tf, 0, 32 + blocksize);
if (!data)
return;
data += 32;
left = (gint32) blocksize;
while (left > 2) {
sublen = ((guint32) data[1]) << 1;
if (data[0] & 0x80) {
sublen |= (((guint32) data[2]) << 9) | (((guint32) data[3]) << 17);
sublen += 1 + 3; /* id + length */
} else {
sublen += 1 + 1; /* id + length */
}
if (sublen > blocksize)
return;
if ((data[0] & 0x20) == 0) {
switch (data[0] & 0x0f) {
case 0xa: /* ID_WV_BITSTREAM */
case 0xc: /* ID_WVX_BITSTREAM */
gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, WAVPACK_CAPS);
return;
case 0xb: /* ID_WVC_BITSTREAM */
gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY,
WAVPACK_CORRECTION_CAPS);
return;
default:
break;
}
}
left -= sublen;
data += sublen;
}
}
}
/*** video/mpeg systemstream ***/
static GstStaticCaps mpeg_sys_caps = GST_STATIC_CAPS ("video/mpeg, "
@ -1762,6 +1824,9 @@ plugin_init (GstPlugin * plugin)
static gchar *m4a_exts[] = { "m4a", NULL };
static gchar *q3gp_exts[] = { "3gp", NULL };
static gchar *aac_exts[] = { "aac", NULL };
static gchar *spc_exts[] = { "spc", NULL };
static gchar *wavpack_exts[] = { "wv", "wvp", NULL };
static gchar *wavpack_correction_exts[] = { "wvc", NULL };
static gchar *rar_exts[] = { "rar", NULL };
static gchar *tar_exts[] = { "tar", NULL };
static gchar *ar_exts[] = { "a", NULL };
@ -1914,6 +1979,13 @@ plugin_init (GstPlugin * plugin)
GST_RANK_MARGINAL, NULL, "\177ELF", 4, GST_TYPE_FIND_MAXIMUM);
TYPE_FIND_REGISTER (plugin, "adts_mpeg_stream", GST_RANK_SECONDARY,
aac_type_find, aac_exts, AAC_CAPS, NULL);
TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-spc", GST_RANK_SECONDARY,
spc_exts, "SNES-SPC700 Sound File Data", 27, GST_TYPE_FIND_MAXIMUM);
TYPE_FIND_REGISTER (plugin, "audio/x-wavpack", GST_RANK_SECONDARY,
wavpack_type_find, wavpack_exts, WAVPACK_CAPS, NULL);
TYPE_FIND_REGISTER (plugin, "audio/x-wavpack-correction", GST_RANK_SECONDARY,
wavpack_type_find, wavpack_correction_exts,
WAVPACK_CORRECTION_CAPS, NULL);
TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-rar",
GST_RANK_SECONDARY, rar_exts, "Rar!", 4, GST_TYPE_FIND_LIKELY);
TYPE_FIND_REGISTER (plugin, "application/x-tar", GST_RANK_SECONDARY,