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add seeking and query ability

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Original commit message from CVS:
add seeking and query ability
This commit is contained in:
David I. Lehn 2003-01-02 08:21:29 +00:00
parent e34901cb04
commit c113816019
1 changed files with 407 additions and 2 deletions
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409
ext/dvdnav/dvdnavsrc.c
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@ -84,6 +84,7 @@ enum {
enum {
ARG_0,
ARG_LOCATION,
ARG_TITLE_STRING,
ARG_TITLE,
ARG_CHAPTER,
ARG_ANGLE
@ -106,7 +107,21 @@ static void dvdnavsrc_get_property (GObject *object, guint prop_id, GValue *v
/*static GstBuffer * dvdnavsrc_get (GstPad *pad); */
static void dvdnavsrc_loop (GstElement *element);
/*static GstBuffer * dvdnavsrc_get_region (GstPad *pad,gulong offset,gulong size); */
//static void dvdnavsrc_event (GstPad *pad, GstEvent *event);
static gboolean dvdnavsrc_event (GstPad *pad, GstEvent *event);
static const GstEventMask*
dvdnavsrc_get_event_mask (GstPad *pad);
static const GstFormat*
dvdnavsrc_get_formats (GstPad *pad);
/*static gboolean dvdnavsrc_convert (GstPad *pad,
GstFormat src_format,
gint64 src_value,
GstFormat *dest_format,
gint64 *dest_value);*/
static gboolean dvdnavsrc_query (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
static const GstQueryType*
dvdnavsrc_get_query_types (GstPad *pad);
static gboolean dvdnavsrc_close (DVDNavSrc *src);
static gboolean dvdnavsrc_open (DVDNavSrc *src);
static void dvdnavsrc_print_event (DVDNavSrc *src, guint8 *data, int event, int len);
@ -117,6 +132,11 @@ static GstElementStateReturn dvdnavsrc_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
/*static guint dvdnavsrc_signals[LAST_SIGNAL] = { 0 }; */
static GstFormat sector_format;
static GstFormat title_format;
static GstFormat chapter_format;
static GstFormat angle_format;
GType
dvdnavsrc_get_type (void)
{
@ -134,6 +154,11 @@ dvdnavsrc_get_type (void)
(GInstanceInitFunc)dvdnavsrc_init,
};
dvdnavsrc_type = g_type_register_static (GST_TYPE_ELEMENT, "DVDNavSrc", &dvdnavsrc_info, 0);
sector_format = gst_format_register ("sector", "DVD sector");
title_format = gst_format_register ("title", "DVD title");
chapter_format = gst_format_register ("chapter", "DVD chapter");
angle_format = gst_format_register ("angle", "DVD angle");
}
return dvdnavsrc_type;
}
@ -152,6 +177,9 @@ dvdnavsrc_class_init (DVDNavSrcClass *klass)
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LOCATION,
g_param_spec_string("location","location","location",
NULL, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TITLE_STRING,
g_param_spec_string("title_string","title string","DVD title string",
NULL, G_PARAM_READABLE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TITLE,
g_param_spec_int("title","title","title",
0,99,1,G_PARAM_READWRITE));
@ -172,9 +200,18 @@ static void
dvdnavsrc_init (DVDNavSrc *dvdnavsrc)
{
gst_element_set_loop_function (GST_ELEMENT(dvdnavsrc), GST_DEBUG_FUNCPTR(dvdnavsrc_loop));
dvdnavsrc->srcpad = gst_pad_new ("src", GST_PAD_SRC);
//gst_pad_set_get_function (dvdnavsrc->srcpad, dvdnavsrc_get);
gst_pad_set_event_function (dvdnavsrc->srcpad, dvdnavsrc_event);
gst_pad_set_event_mask_function (dvdnavsrc->srcpad, dvdnavsrc_get_event_mask);
/*gst_pad_set_convert_function (dvdnavsrc->srcpad, dvdnavsrc_convert);*/
gst_pad_set_query_function (dvdnavsrc->srcpad, dvdnavsrc_query);
gst_pad_set_query_type_function (dvdnavsrc->srcpad, dvdnavsrc_get_query_types);
gst_pad_set_formats_function (dvdnavsrc->srcpad, dvdnavsrc_get_formats);
gst_element_add_pad (GST_ELEMENT (dvdnavsrc), dvdnavsrc->srcpad);
//gst_pad_set_event_function (dvdnavsrc->srcpad, dvdnavsrc_event);
dvdnavsrc->bufferpool = gst_buffer_pool_get_default (DVD_VIDEO_LB_LEN, 2);
@ -251,6 +288,7 @@ static void
dvdnavsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
DVDNavSrc *src;
char *title_string;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_DVDNAVSRC (object));
@ -261,6 +299,13 @@ dvdnavsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpe
case ARG_LOCATION:
g_value_set_string (value, src->location);
break;
case ARG_TITLE_STRING:
if (dvdnav_get_title_string(src->dvdnav, &title_string) != DVDNAV_STATUS_OK) {
g_value_set_string (value, "[error getting DVD title]");
} else {
g_value_set_string (value, title_string);
}
break;
case ARG_TITLE:
g_value_set_int (value, src->title);
break;
@ -753,6 +798,366 @@ dvdnavsrc_change_state (GstElement *element)
return GST_STATE_SUCCESS;
}
static const GstEventMask *
dvdnavsrc_get_event_mask (GstPad *pad)
{
static const GstEventMask masks[] = {
{GST_EVENT_SEEK, GST_SEEK_METHOD_SET |
GST_SEEK_METHOD_CUR |
GST_SEEK_METHOD_END |
GST_SEEK_FLAG_FLUSH },
/*
{GST_EVENT_SEEK_SEGMENT, GST_SEEK_METHOD_SET |
GST_SEEK_METHOD_CUR |
GST_SEEK_METHOD_END |
GST_SEEK_FLAG_FLUSH },
*/
{0,}
};
return masks;
}
static gboolean
dvdnavsrc_event (GstPad *pad, GstEvent *event)
{
DVDNavSrc *src;
gboolean res = TRUE;
src = DVDNAVSRC (gst_pad_get_parent (pad));
if (!GST_FLAG_IS_SET (src, DVDNAVSRC_OPEN))
goto error;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
gint64 offset;
gint format;
int titles, title, new_title;
int parts, part, new_part;
int angles, angle, new_angle;
format = GST_EVENT_SEEK_FORMAT (event);
offset = GST_EVENT_SEEK_OFFSET (event);
switch (format) {
default:
if (dvdnav_current_title_info(src->dvdnav, &title, &part) !=
DVDNAV_STATUS_OK) {
goto error;
}
/*if (format == sector_format) {
} else */if (format == title_format) {
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
new_title = offset;
break;
case GST_SEEK_METHOD_CUR:
new_title = title + offset;
break;
case GST_SEEK_METHOD_END:
if (dvdnav_get_number_of_titles(src->dvdnav, &titles) !=
DVDNAV_STATUS_OK) {
goto error;
}
new_title = titles + offset;
break;
default:
goto error;
}
if (dvdnav_title_play(src->dvdnav, new_title) !=
DVDNAV_STATUS_OK) {
goto error;
}
} else if (format == chapter_format) {
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
new_part = offset;
break;
case GST_SEEK_METHOD_CUR:
new_part = part + offset;
break;
case GST_SEEK_METHOD_END:
if (dvdnav_get_number_of_programs(src->dvdnav, &parts) !=
DVDNAV_STATUS_OK) {
goto error;
}
new_part = parts + offset;
break;
default:
goto error;
}
g_message("seek->chap %d->%d", part, new_part);
/*if (dvdnav_part_search(src->dvdnav, new_part) !=*/
if (dvdnav_part_play(src->dvdnav, title, new_part) !=
DVDNAV_STATUS_OK) {
goto error;
}
if (dvdnav_current_title_info(src->dvdnav, &title, &part) !=
DVDNAV_STATUS_OK) {
goto error;
}
g_message("seek->chap after:%d", part);
g_message("seek->chap->cur done");
} else if (format == angle_format) {
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
new_angle = offset;
break;
case GST_SEEK_METHOD_CUR:
new_angle = angle + offset;
break;
case GST_SEEK_METHOD_END:
if (dvdnav_get_angle_info(src->dvdnav, &angle, &angles) !=
DVDNAV_STATUS_OK) {
goto error;
}
new_angle = angles + offset;
break;
default:
goto error;
}
if (dvdnav_angle_change(src->dvdnav, new_angle) !=
DVDNAV_STATUS_OK) {
goto error;
}
} else {
goto error;
}
}
break;
}
default:
goto error;
}
if (FALSE) {
error:
res = FALSE;
}
gst_event_unref (event);
return res;
}
static const GstFormat *
dvdnavsrc_get_formats (GstPad *pad)
{
int i;
static GstFormat formats[] = {
/*
GST_FORMAT_TIME,
GST_FORMAT_BYTES,
GST_FORMAT_UNITS,
*/
0, /* filled later */
0, /* filled later */
0, /* filled later */
0, /* filled later */
0
};
static gboolean format_initialized = FALSE;
if (!format_initialized) {
for (i=0; formats[i] != 0; i++) {
}
formats[i++] = sector_format;
formats[i++] = title_format;
formats[i++] = chapter_format;
formats[i++] = angle_format;
format_initialized = TRUE;
}
return formats;
}
#if 0
static gboolean
dvdnavsrc_convert (GstPad *pad,
GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value)
{
DVDNavSrc *src;
src = DVDNAVSRC (gst_pad_get_parent (pad));
if (!GST_FLAG_IS_SET (src, DVDNAVSRC_OPEN))
return FALSE;
switch (src_format) {
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_BYTES:
src_value <<= 2; /* 4 bytes per sample */
case GST_FORMAT_UNITS:
*dest_value = src_value * 44100 / GST_SECOND;
break;
default:
if (*dest_format == track_format || *dest_format == sector_format) {
gint sector = (src_value * 44100) / ((CD_FRAMESIZE_RAW >> 2) * GST_SECOND);
if (*dest_format == sector_format) {
*dest_value = sector;
}
else {
*dest_value = cdda_sector_gettrack (src->d, sector) - 1;
}
}
else
return FALSE;
break;
}
break;
case GST_FORMAT_BYTES:
src_value >>= 2;
case GST_FORMAT_UNITS:
switch (*dest_format) {
case GST_FORMAT_BYTES:
*dest_value = src_value * 4;
break;
case GST_FORMAT_TIME:
*dest_value = src_value * GST_SECOND / 44100;
break;
default:
if (*dest_format == track_format || *dest_format == sector_format) {
gint sector = src_value / (CD_FRAMESIZE_RAW >> 2);
if (*dest_format == track_format) {
*dest_value = cdda_sector_gettrack (src->d, sector) - 1;
}
else {
*dest_value = sector;
}
}
else
return FALSE;
break;
}
break;
default:
{
gint sector;
if (src_format == track_format) {
/* some sanity checks */
if (src_value < 0 || src_value > src->d->tracks)
return FALSE;
sector = cdda_track_firstsector (src->d, src_value + 1);
}
else if (src_format == sector_format) {
sector = src_value;
}
else
return FALSE;
switch (*dest_format) {
case GST_FORMAT_TIME:
*dest_value = ((CD_FRAMESIZE_RAW >> 2) * sector * GST_SECOND) / 44100;
break;
case GST_FORMAT_BYTES:
sector <<= 2;
case GST_FORMAT_UNITS:
*dest_value = (CD_FRAMESIZE_RAW >> 2) * sector;
break;
default:
if (*dest_format == sector_format) {
*dest_value = sector;
}
else if (*dest_format == track_format) {
/* if we go past the last sector, make sure to report the last track */
if (sector > src->last_sector)
*dest_value = cdda_sector_gettrack (src->d, src->last_sector);
else
*dest_value = cdda_sector_gettrack (src->d, sector) - 1;
}
else
return FALSE;
break;
}
break;
}
}
return TRUE;
}
#endif
static const GstQueryType*
dvdnavsrc_get_query_types (GstPad *pad)
{
static const GstQueryType src_query_types[] = {
GST_QUERY_TOTAL,
GST_QUERY_POSITION,
0
};
return src_query_types;
}
static gboolean
dvdnavsrc_query (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value)
{
gboolean res = TRUE;
DVDNavSrc *src;
int titles, title;
int parts, part;
int angles, angle;
src = DVDNAVSRC (gst_pad_get_parent (pad));
if (!GST_FLAG_IS_SET (src, DVDNAVSRC_OPEN))
return FALSE;
switch (type) {
case GST_QUERY_TOTAL:
if (*format == title_format) {
if (dvdnav_get_number_of_titles(src->dvdnav, &titles) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = titles;
} else if (*format == chapter_format) {
if (dvdnav_get_number_of_programs(src->dvdnav, &parts) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = parts;
} else if (*format == angle_format) {
if (dvdnav_get_angle_info(src->dvdnav, &angle, &angles) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = angles;
} else {
res = FALSE;
}
break;
case GST_QUERY_POSITION:
if (*format == title_format) {
if (dvdnav_current_title_info(src->dvdnav, &title, &part) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = title;
} else if (*format == chapter_format) {
if (dvdnav_current_title_info(src->dvdnav, &title, &part) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = part;
} else if (*format == angle_format) {
if (dvdnav_get_angle_info(src->dvdnav, &angle, &angles) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = angle;
} else {
res = FALSE;
}
break;
default:
res = FALSE;
break;
}
return res;
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{