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ext/dvdread/dvdreadsrc.c: Add convert query (needed for later when we just operate in time format and let the base so...

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Original commit message from CVS:
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_read):
Add convert query (needed for later when we just operate in time
format and let the base source class handle all the seeking stuff).
This commit is contained in:
Tim-Philipp Müller 2006-09-09 15:22:58 +00:00
parent f960e4ca4d
commit a61b2c99ab
2 changed files with 111 additions and 3 deletions
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12
ChangeLog
View file

@ -1,3 +1,9 @@
2006-09-09 Tim-Philipp Müller <tim at centricular dot net>
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_read):
Add convert query (needed for later when we just operate in time
format and let the base source class handle all the seeking stuff).
2006-09-07 Stefan Kost <ensonic@users.sf.net>
* gst/asfdemux/gstasfdemux.c:
@ -17,13 +23,13 @@
2006-09-01 Michael Smith <msmith@fluendo.com>
Patch by: Michal Benes <michal.benes@itonis.tv>:
* ext/a52dec/gsta52dec.c: (gst_a52dec_mode_get_type),
(gst_a52dec_class_init), (gst_a52dec_init), (gst_a52dec_channels),
(gst_a52dec_handle_frame), (gst_a52dec_change_state),
(gst_a52dec_set_property), (gst_a52dec_get_property):
* ext/a52dec/gsta52dec.h:
Patch from from Michal Benes <michal.benes@itonis.tv>:
Add two things to a52dec: configure the exact output format for ac3
decoding through properties, if desired.
By default, configure an output format preferred by downstream. Now
@ -48,7 +54,7 @@
2006-08-27 Stefan Kost <ensonic@users.sf.net>
* gst/mpegstream/gstmpegpacketize.c: (gst_mpeg_packetize_new):
fix build for debug disabled
Fix build for debug disabled
2006-08-22 Tim-Philipp Müller <tim at centricular dot net>

102
ext/dvdread/dvdreadsrc.c
View file

@ -1339,6 +1339,103 @@ gst_dvd_read_src_do_position_query (GstDvdReadSrc * src, GstQuery * query)
return TRUE;
}
static gboolean
gst_dvd_read_src_do_convert_query (GstBaseSrc * basesrc, GstQuery * query)
{
GstDvdReadSrc *src = GST_DVD_READ_SRC (basesrc);
GstFormat src_format, dest_format;
gboolean ret = FALSE;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_format, &src_val, &dest_format, NULL);
if (src_format == dest_format) {
dest_val = src_val;
ret = TRUE;
goto done;
}
/* Formats to consider: TIME, DEFAULT, BYTES, title, chapter, sector.
* Note: title and chapter are counted as starting from 0 here, just like
* in the context of seek events. Another note: DEFAULT format is undefined */
if (src_format == GST_FORMAT_BYTES) {
src_format = sector_format;
src_val /= DVD_VIDEO_LB_LEN;
}
if (src_format == sector_format) {
/* SECTOR => xyz */
if (dest_format == GST_FORMAT_TIME && src_val < G_MAXUINT) {
dest_val = gst_dvd_read_src_get_time_for_sector (src, (guint) src_val);
ret = (dest_val >= 0);
} else if (dest_format == GST_FORMAT_BYTES) {
dest_val = src_val * DVD_VIDEO_LB_LEN;
ret = TRUE;
} else {
ret = FALSE;
}
} else if (src_format == title_format) {
/* TITLE => xyz */
if (dest_format == GST_FORMAT_TIME) {
/* not really true, but we use this to trick the base source into
* handling seeks in title-format for us (the source won't know that
* we changed the title in this case) (changing titles should really
* be done with an interface rather than a seek, but for now we're
* stuck with this mechanism. Fix in 0.11) */
dest_val = (GstClockTime) 0;
ret = TRUE;
} else {
ret = FALSE;
}
} else if (src_format == chapter_format) {
/* CHAPTER => xyz */
if (dest_format == GST_FORMAT_TIME) {
if (src->num_chapters >= 0 && src_val < src->num_chapters) {
dest_val = src->chapter_starts[src_val];
ret = TRUE;
}
} else if (dest_format == sector_format) {
} else {
ret = FALSE;
}
} else if (src_format == GST_FORMAT_TIME) {
/* TIME => xyz */
if (dest_format == sector_format || dest_format == GST_FORMAT_BYTES) {
dest_val = gst_dvd_read_src_get_sector_from_time (src, src_val);
ret = (dest_val >= 0);
if (dest_format == GST_FORMAT_BYTES)
dest_val *= DVD_VIDEO_LB_LEN;
} else if (dest_format == chapter_format) {
if (src->chapter_starts != NULL) {
gint i;
for (i = src->num_chapters - 1; i >= 0; --i) {
if (src->chapter_starts && src->chapter_starts[i] >= src_val) {
dest_val = i;
ret = TRUE;
break;
}
}
} else {
ret = FALSE;
}
} else {
ret = FALSE;
}
} else {
ret = FALSE;
}
done:
if (ret) {
gst_query_set_convert (query, src_format, src_val, dest_format, dest_val);
}
return ret;
}
static gboolean
gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
{
@ -1369,6 +1466,11 @@ gst_dvd_read_src_src_query (GstBaseSrc * basesrc, GstQuery * query)
res = gst_dvd_read_src_do_position_query (src, query);
GST_OBJECT_UNLOCK (src);
break;
case GST_QUERY_CONVERT:
GST_OBJECT_LOCK (src);
res = gst_dvd_read_src_do_convert_query (src, query);
GST_OBJECT_UNLOCK (src);
break;
default:
res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
break;