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dvdreadsrc: fix sector seeking

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It was overly complicated, and did not take into account the offset
needed for titles which do not start on a new file.

https://bugzilla.gnome.org/show_bug.cgi?id=659252
This commit is contained in:
Vincent Penquerc'h 2011-09-16 15:03:54 +01:00 committed by Sebastian Dröge
parent 20464efc8e
commit 59ed3b7bf2
1 changed files with 12 additions and 10 deletions
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22
ext/dvdread/dvdreadsrc.c
View file

@ -1545,25 +1545,27 @@ static gboolean
gst_dvd_read_src_goto_sector (GstDvdReadSrc * src, int angle)
{
gint seek_to = src->cur_pack;
gint chapter, sectors, next, cur, i;
gint chapter, next, cur, i;
/* retrieve position */
src->cur_pack = 0;
GST_DEBUG_OBJECT (src, "Goto sector %d, angle %d, within %d chapters",
seek_to, angle, src->num_chapters);
for (i = 0; i < src->num_chapters; i++) {
gint c1, c2;
cur_title_get_chapter_bounds (src, i, &c1, &c2);
GST_DEBUG_OBJECT (src, " Looking in chapter %d, bounds: %d %d", i, c1, c2);
for (next = cur = c1; cur < c2;) {
if (next != cur) {
sectors =
src->cur_pgc->cell_playback[cur].last_sector -
src->cur_pgc->cell_playback[cur].first_sector;
if (src->cur_pack + sectors > seek_to) {
chapter = i;
goto done;
}
src->cur_pack += sectors;
gint first = src->cur_pgc->cell_playback[cur].first_sector;
gint last = src->cur_pgc->cell_playback[cur].last_sector;
GST_DEBUG_OBJECT (src, "Cell %d sector bounds: %d %d", cur, first, last);
if (seek_to >= first && seek_to <= last) {
GST_DEBUG_OBJECT (src, "Seek target found in chapter %d", i);
chapter = i;
goto done;
}
cur = next;
if (src->cur_pgc->cell_playback[cur].block_type == BLOCK_TYPE_ANGLE_BLOCK)