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gstreamer/ext/dvdnav/dvdnavsrc.c
Andy Wingo fa4bd0499f All plugins updated for element state changes. 
Original commit message from CVS:
2005-09-02  Andy Wingo  <wingo@pobox.com>

* All plugins updated for element state changes.
2005-09-02 15:43:54 +00:00

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/* GStreamer
* Copyright (C) 2002 David I. Lehn <dlehn@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <assert.h>
#include <gst/gst-i18n-plugin.h>
#include <gst/gst.h>
#include <dvdnav/dvdnav.h>
#include <dvdnav/nav_print.h>
GST_DEBUG_CATEGORY_STATIC (dvdnavsrc_debug);
#define GST_CAT_DEFAULT (dvdnavsrc_debug)
/* Size of a DVD sector, used for sector-byte format conversions */
#define DVD_SECTOR_SIZE 2048
#define CLOCK_BASE 9LL
#define CLOCK_FREQ CLOCK_BASE * 10000
#define MPEGTIME_TO_GSTTIME(time) (((time) * (GST_MSECOND/10)) / CLOCK_BASE)
#define GSTTIME_TO_MPEGTIME(time) (((time) * CLOCK_BASE) / (GST_MSECOND/10))
/* Call a dvdnav function and, it it fails, report an error an execute
the code in the 'action' parameter. */
#define DVDNAV_RAWCALL(func, params, elem, action) \
if (func params != DVDNAV_STATUS_OK) { \
GST_ELEMENT_ERROR (elem, LIBRARY, FAILED, \
(_("Error invoking \"%s\": %s."), \
#func, dvdnav_err_to_string ((elem)->dvdnav)), \
GST_ERROR_SYSTEM); \
action \
}
/* Call a dvdnav function and, it it fails, report an error and return
from the current procedure. */
#define DVDNAV_CALL(func, params, elem) \
DVDNAV_RAWCALL (func, params, elem, return;)
/* Call a dvdnav function and, it it fails, report an error and return
from the current procedure with the value 'retval'. */
#define DVDNAV_CALLVAL(func, params, elem, retval) \
DVDNAV_RAWCALL (func, params, elem, return (retval);)
/* The maxinum number of audio and SPU streams in a DVD. */
#define DVDNAVSRC_MAX_AUDIO_STREAMS 8
#define DVDNAVSRC_MAX_SPU_STREAMS 32
#define GST_TYPE_DVDNAVSRC \
(dvdnavsrc_get_type())
#define DVDNAVSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DVDNAVSRC,DVDNavSrc))
#define DVDNAVSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DVDNAVSRC,DVDNavSrcClass))
#define GST_IS_DVDNAVSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DVDNAVSRC))
#define GST_IS_DVDNAVSRC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DVDNAVSRC))
typedef struct _DVDNavSrc DVDNavSrc;
typedef struct _DVDNavSrcClass DVDNavSrcClass;
/* The pause modes to handle still frames. */
typedef enum
{
DVDNAVSRC_PAUSE_OFF, /* No pause active. */
DVDNAVSRC_PAUSE_LIMITED, /* A time limited pause is active. */
DVDNAVSRC_PAUSE_UNLIMITED /* An time unlimited pause is active. */
}
DVDNavSrcPauseMode;
/* Interval of time to sleep during pauses. */
#define DVDNAVSRC_PAUSE_INTERVAL (GST_SECOND / 20)
/* The DVD domain types. */
typedef enum
{
DVDNAVSRC_DOMAIN_UNKNOWN, /* Unknown domain. */
DVDNAVSRC_DOMAIN_FP, /* First Play domain. */
DVDNAVSRC_DOMAIN_VMGM, /* Video Management Menu domain */
DVDNAVSRC_DOMAIN_VTSM, /* Video Title Menu domain. */
DVDNAVSRC_DOMAIN_VTS /* Video Title domain. */
}
DVDNavSrcDomainType;
struct _DVDNavSrc
{
GstElement element;
/* Pads */
GstPad *srcpad;
GstCaps *streaminfo;
/* Location */
gchar *location;
gboolean did_seek;
gboolean need_flush;
gboolean need_newmedia;
/* Timing */
GstClock *clock; /* The clock for this element. */
/* Pause handling */
DVDNavSrcPauseMode pause_mode; /* The current pause mode. */
GstClockTime pause_end; /* The clock time for the end of the
pause. */
/* Highligh handling */
int button; /* The currently highlighted button
number (0 if no highlight). */
dvdnav_highlight_area_t area; /* The area corresponding to the
currently highlighted button. */
/* State handling */
DVDNavSrcDomainType domain; /* The current DVD domain. */
int title, chapter, angle;
int audio_phys, audio_log; /* The current audio streams. */
int subp_phys, subp_log; /* The current subpicture streams. */
dvdnav_t *dvdnav; /* The libdvdnav handle. */
GstCaps *buttoninfo;
GstBuffer *cur_buf; /* Current output buffer. See
dvdnavsrc_get. */
};
struct _DVDNavSrcClass
{
GstElementClass parent_class;
void (*user_op) (DVDNavSrc * src, int op);
};
/* elementfactory information */
GstElementDetails dvdnavsrc_details = {
"DVD Source",
"Source/File/DVD",
"Access a DVD with navigation features using libdvdnav",
"David I. Lehn <dlehn@users.sourceforge.net>",
};
/* DVDNavSrc signals and args */
enum
{
USER_OP_SIGNAL,
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_LOCATION,
ARG_DEVICE,
ARG_STREAMINFO,
ARG_BUTTONINFO,
ARG_TITLE_STRING,
ARG_TITLE,
ARG_CHAPTER,
ARG_ANGLE,
ARG_AUDIO_LANGS,
ARG_AUDIO_LANG,
ARG_SPU_LANGS,
ARG_SPU_LANG
};
typedef enum
{
DVDNAVSRC_OPEN = GST_ELEMENT_FLAG_LAST,
DVDNAVSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2
}
DVDNavSrcFlags;
GType dvdnavsrc_get_type (void);
static void dvdnavsrc_base_init (gpointer g_class);
static void dvdnavsrc_class_init (DVDNavSrcClass * klass);
static void dvdnavsrc_init (DVDNavSrc * dvdnavsrc);
static void dvdnavsrc_finalize (GObject * object);
static void dvdnavsrc_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void dvdnavsrc_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void dvdnavsrc_set_clock (GstElement * element, GstClock * clock);
static GstEvent *dvdnavsrc_make_dvd_event
(DVDNavSrc * src, const gchar * event_name, const gchar * firstfield, ...);
static GstEvent *dvdnavsrc_make_dvd_nav_packet_event
(DVDNavSrc * src, const pci_t * pci);
static GstEvent *dvdnavsrc_make_clut_change_event
(DVDNavSrc * src, const guint * clut);
static void dvdnavsrc_loop (GstElement * element);
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_query (GstPad * pad,
GstQueryType type, GstFormat * format, gint64 * value);
static const GstQueryType *dvdnavsrc_get_query_types (GstPad * pad);
static gboolean dvdnavsrc_convert (GstPad * pad,
GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value);
static gboolean dvdnavsrc_close (DVDNavSrc * src);
static gboolean dvdnavsrc_open (DVDNavSrc * src);
static gboolean dvdnavsrc_is_open (DVDNavSrc * src);
#ifndef GST_DISABLE_GST_DEBUG
static void dvdnavsrc_print_event (DVDNavSrc * src,
guint8 * data, int event, int len);
#else
#define dvdnavsrc_print_event(src, data, event, len) ((void) 0)
#endif /* GST_DISABLE_GST_DEBUG */
static void dvdnavsrc_update_streaminfo (DVDNavSrc * src);
static void dvdnavsrc_set_domain (DVDNavSrc * src);
static void dvdnavsrc_update_highlight (DVDNavSrc * src);
static void dvdnavsrc_user_op (DVDNavSrc * src, int op);
static GstStateChangeReturn dvdnavsrc_change_state (GstElement * element,
GstStateChange transition);
static void dvdnavsrc_uri_handler_init (gpointer g_iface, gpointer iface_data);
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)
{
static GType dvdnavsrc_type = 0;
if (!dvdnavsrc_type) {
static const GTypeInfo dvdnavsrc_info = {
sizeof (DVDNavSrcClass),
dvdnavsrc_base_init,
NULL,
(GClassInitFunc) dvdnavsrc_class_init,
NULL,
NULL,
sizeof (DVDNavSrc),
0,
(GInstanceInitFunc) dvdnavsrc_init,
};
static const GInterfaceInfo urihandler_info = {
dvdnavsrc_uri_handler_init,
NULL,
NULL
};
dvdnavsrc_type = g_type_register_static (GST_TYPE_ELEMENT,
"DVDNavSrc", &dvdnavsrc_info, 0);
g_type_add_interface_static (dvdnavsrc_type,
GST_TYPE_URI_HANDLER, &urihandler_info);
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");
GST_DEBUG_CATEGORY_INIT (dvdnavsrc_debug, "dvdnavsrc", 0,
"DVD navigation element");
}
return dvdnavsrc_type;
}
static void
dvdnavsrc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &dvdnavsrc_details);
}
static void
dvdnavsrc_class_init (DVDNavSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
dvdnavsrc_signals[USER_OP_SIGNAL] =
g_signal_new ("user-op",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (DVDNavSrcClass, user_op),
NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
gobject_class->finalize = dvdnavsrc_finalize;
klass->user_op = dvdnavsrc_user_op;
g_object_class_install_property (gobject_class, ARG_LOCATION,
g_param_spec_string ("location", "Location",
"DVD device location (deprecated; use device)",
NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DEVICE,
g_param_spec_string ("device", "Device",
"DVD device location", NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_TITLE_STRING,
g_param_spec_string ("title_string", "title string", "DVD title string",
NULL, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, ARG_TITLE,
g_param_spec_int ("title", "title", "title",
0, 99, 1, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_CHAPTER,
g_param_spec_int ("chapter", "chapter", "chapter",
1, 99, 1, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_ANGLE,
g_param_spec_int ("angle", "angle", "angle", 1, 9, 1, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_STREAMINFO,
g_param_spec_boxed ("streaminfo", "streaminfo", "streaminfo",
GST_TYPE_CAPS, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, ARG_BUTTONINFO,
g_param_spec_boxed ("buttoninfo", "buttoninfo", "buttoninfo",
GST_TYPE_CAPS, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, ARG_AUDIO_LANGS,
g_param_spec_string ("audio_languages", "audio_languages",
"Available audio languages", NULL, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, ARG_AUDIO_LANG,
g_param_spec_string ("audio_language", "audio_language",
"Current audio language", NULL, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, ARG_SPU_LANGS,
g_param_spec_string ("spu_languages", "spu_languages",
"Available SPU languages", NULL, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, ARG_SPU_LANG,
g_param_spec_string ("spu_language", "spu_language",
"Current SPU language", NULL, G_PARAM_READABLE));
gobject_class->set_property = GST_DEBUG_FUNCPTR (dvdnavsrc_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (dvdnavsrc_get_property);
gstelement_class->change_state = dvdnavsrc_change_state;
gstelement_class->set_clock = dvdnavsrc_set_clock;
}
static void
dvdnavsrc_init (DVDNavSrc * src)
{
src->srcpad = gst_pad_new ("src", GST_PAD_SRC);
gst_element_set_loop_function (GST_ELEMENT (src), dvdnavsrc_loop);
gst_pad_set_event_function (src->srcpad, dvdnavsrc_event);
gst_pad_set_event_mask_function (src->srcpad, dvdnavsrc_get_event_mask);
gst_pad_set_convert_function (src->srcpad, dvdnavsrc_convert);
gst_pad_set_query_function (src->srcpad, dvdnavsrc_query);
gst_pad_set_query_type_function (src->srcpad, dvdnavsrc_get_query_types);
gst_pad_set_formats_function (src->srcpad, dvdnavsrc_get_formats);
gst_element_add_pad (GST_ELEMENT (src), src->srcpad);
src->location = g_strdup ("/dev/dvd");
src->did_seek = FALSE;
src->need_flush = FALSE;
src->need_newmedia = TRUE;
/* Pause mode is initially inactive. */
src->pause_mode = DVDNAVSRC_PAUSE_OFF;
/* No highlighted button. */
src->button = 0;
/* Domain is unknown at the begining. */
src->domain = DVDNAVSRC_DOMAIN_UNKNOWN;
src->title = 0;
src->chapter = 1;
src->angle = 1;
src->streaminfo = NULL;
src->buttoninfo = NULL;
src->audio_phys = -1;
src->audio_log = -1;
src->subp_phys = -1;
src->subp_log = -1;
/* No current output buffer. */
src->cur_buf = NULL;
}
static void
dvdnavsrc_finalize (GObject * object)
{
DVDNavSrc *src = DVDNAVSRC (object);
/* If there's a current output buffer, get rid of it. */
if (src->cur_buf != NULL) {
gst_buffer_unref (src->cur_buf);
}
}
static gboolean
dvdnavsrc_is_open (DVDNavSrc * src)
{
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_DVDNAVSRC (src), FALSE);
return GST_FLAG_IS_SET (src, DVDNAVSRC_OPEN);
}
static void
dvdnavsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
DVDNavSrc *src;
g_return_if_fail (GST_IS_DVDNAVSRC (object));
src = DVDNAVSRC (object);
switch (prop_id) {
case ARG_LOCATION:
case ARG_DEVICE:
/* the element must be stopped in order to do this */
/*g_return_if_fail(!GST_FLAG_IS_SET(src,GST_STATE_RUNNING)); */
g_free (src->location);
/* clear the filename if we get a NULL (is that possible?) */
if (g_value_get_string (value) == NULL)
src->location = g_strdup ("/dev/dvd");
/* otherwise set the new filename */
else
src->location = g_strdup (g_value_get_string (value));
break;
case ARG_TITLE:
src->title = g_value_get_int (value);
src->did_seek = TRUE;
break;
case ARG_CHAPTER:
src->chapter = g_value_get_int (value);
src->did_seek = TRUE;
break;
case ARG_ANGLE:
src->angle = g_value_get_int (value);
break;
case ARG_AUDIO_LANG:
if (dvdnavsrc_is_open (src)) {
const gchar *code = g_value_get_string (value);
if (code != NULL) {
GST_INFO_OBJECT (src, "setting language %s", code);
if (dvdnav_audio_language_select (src->dvdnav, (char *) code) !=
DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "setting language: %s",
dvdnav_err_to_string (src->dvdnav));
}
}
}
break;
case ARG_SPU_LANG:
if (dvdnavsrc_is_open (src)) {
const gchar *code = g_value_get_string (value);
if (code != NULL) {
dvdnav_spu_language_select (src->dvdnav, (char *) code);
}
}
break;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
dvdnavsrc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
DVDNavSrc *src;
const char *title_string;
g_return_if_fail (GST_IS_DVDNAVSRC (object));
src = DVDNAVSRC (object);
switch (prop_id) {
case ARG_LOCATION:
case ARG_DEVICE:
g_value_set_string (value, src->location);
break;
case ARG_STREAMINFO:
g_value_set_boxed (value, src->streaminfo);
break;
case ARG_BUTTONINFO:
g_value_set_boxed (value, src->buttoninfo);
break;
case ARG_TITLE_STRING:
if (!dvdnavsrc_is_open (src)) {
g_value_set_string (value, "");
} else if (dvdnav_get_title_string (src->dvdnav, &title_string) !=
DVDNAV_STATUS_OK) {
g_value_set_string (value, "UNKNOWN");
} else {
g_value_set_string (value, title_string);
}
break;
case ARG_TITLE:
g_value_set_int (value, src->title);
break;
case ARG_CHAPTER:
g_value_set_int (value, src->chapter);
break;
case ARG_ANGLE:
g_value_set_int (value, src->angle);
break;
case ARG_AUDIO_LANGS:
if (!dvdnavsrc_is_open (src)) {
g_value_set_string (value, "");
} else {
uint8_t physical, logical;
uint16_t lang_int;
gchar langs[DVDNAVSRC_MAX_AUDIO_STREAMS * 3];
gchar *lang_ptr = langs;
for (physical = 0; physical < DVDNAVSRC_MAX_AUDIO_STREAMS; physical++) {
logical = dvdnav_get_audio_logical_stream (src->dvdnav, physical);
lang_int = dvdnav_audio_stream_to_lang (src->dvdnav, logical);
if (lang_int != 0xffff) {
lang_ptr[0] = (lang_int >> 8) & 0xff;
lang_ptr[1] = lang_int & 0xff;
lang_ptr[2] = ' ';
lang_ptr += 3;
}
}
if (lang_ptr > langs) {
/* Overwrite the space at the end. */
lang_ptr[-1] = '\0';
} else {
langs[0] = '\0';
}
g_value_set_string (value, langs);
}
break;
case ARG_AUDIO_LANG:
if (!dvdnavsrc_is_open (src)) {
g_value_set_string (value, "");
} else {
uint8_t logical;
uint16_t lang_int;
gchar lang[3];
logical = dvdnav_get_active_audio_stream (src->dvdnav);
lang_int = dvdnav_audio_stream_to_lang (src->dvdnav, logical);
if (lang_int != 0xffff) {
lang[0] = (lang_int >> 8) & 0xff;
lang[1] = lang_int & 0xff;
lang[2] = '\0';
g_value_set_string (value, lang);
} else {
g_value_set_string (value, "");
}
}
break;
case ARG_SPU_LANGS:
if (!dvdnavsrc_is_open (src)) {
g_value_set_string (value, "");
} else {
uint8_t physical, logical;
uint16_t lang_int;
gchar langs[DVDNAVSRC_MAX_SPU_STREAMS * 3];
gchar *lang_ptr = langs;
for (physical = 0; physical < DVDNAVSRC_MAX_SPU_STREAMS; physical++) {
logical = dvdnav_get_spu_logical_stream (src->dvdnav, physical);
lang_int = dvdnav_spu_stream_to_lang (src->dvdnav, logical);
if (lang_int != 0xffff) {
lang_ptr[0] = (lang_int >> 8) & 0xff;
lang_ptr[1] = lang_int & 0xff;
lang_ptr[2] = ' ';
lang_ptr += 3;
}
}
if (lang_ptr > langs) {
/* Overwrite the space at the end. */
lang_ptr[-1] = '\0';
} else {
langs[0] = '\0';
}
g_value_set_string (value, langs);
}
break;
case ARG_SPU_LANG:
if (!dvdnavsrc_is_open (src)) {
g_value_set_string (value, "");
} else {
uint8_t logical;
uint16_t lang_int;
gchar lang[3];
logical = dvdnav_get_active_spu_stream (src->dvdnav);
lang_int = dvdnav_spu_stream_to_lang (src->dvdnav, logical);
if (lang_int != 0xffff) {
lang[0] = (lang_int >> 8) & 0xff;
lang[1] = lang_int & 0xff;
lang[2] = '\0';
g_value_set_string (value, lang);
} else {
g_value_set_string (value, "");
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
dvdnavsrc_set_clock (GstElement * element, GstClock * clock)
{
DVDNavSrc *src = DVDNAVSRC (element);
src->clock = clock;
}
static gboolean
dvdnavsrc_tca_seek (DVDNavSrc * src, int title, int chapter, int angle)
{
int titles, programs, curangle, angles;
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (src->dvdnav != NULL, FALSE);
g_return_val_if_fail (dvdnavsrc_is_open (src), FALSE);
/* Dont try to seek to track 0 - First Play program chain */
g_return_val_if_fail (src->title > 0, FALSE);
GST_INFO_OBJECT (src, "seeking to %d/%d/%d", title, chapter, angle);
/*
* Make sure our title number is valid.
*/
if (dvdnav_get_number_of_titles (src->dvdnav, &titles) != DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "dvdnav_get_number_of_titles: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
GST_INFO_OBJECT (src, "there are %d titles on this DVD", titles);
if (title < 1 || title > titles) {
GST_ERROR_OBJECT (src, "invalid title %d", title);
dvdnavsrc_close (src);
return FALSE;
}
/*
* Before we can get the number of chapters (programs) we need to call
* dvdnav_title_play so that dvdnav_get_number_of_programs knows which title
* to operate on (also needed to get the number of angles)
*/
/* FIXME: This is probably not necessary anymore! */
if (dvdnav_title_play (src->dvdnav, title) != DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "dvdnav_title_play: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
/*
* Make sure the chapter number is valid for this title.
*/
if (dvdnav_get_number_of_titles (src->dvdnav, &programs)
!= DVDNAV_STATUS_OK) {
GST_ERROR ("dvdnav_get_number_of_programs: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
GST_INFO_OBJECT (src, "there are %d chapters in this title", programs);
if (chapter < 0 || chapter > programs) {
GST_ERROR_OBJECT (src, "invalid chapter %d", chapter);
dvdnavsrc_close (src);
return FALSE;
}
/*
* Make sure the angle number is valid for this title.
*/
if (dvdnav_get_angle_info (src->dvdnav, &curangle, &angles)
!= DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "dvdnav_get_angle_info: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
GST_INFO_OBJECT (src, "there are %d angles in this title", angles);
if (angle < 1 || angle > angles) {
GST_ERROR_OBJECT (src, "invalid angle %d", angle);
dvdnavsrc_close (src);
return FALSE;
}
/*
* We've got enough info, time to open the title set data.
*/
if (src->chapter == 0) {
if (dvdnav_title_play (src->dvdnav, title) != DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "dvdnav_title_play: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
} else {
if (dvdnav_part_play (src->dvdnav, title, chapter) != DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "dvdnav_part_play: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
}
if (dvdnav_angle_change (src->dvdnav, angle) != DVDNAV_STATUS_OK) {
GST_ERROR_OBJECT (src, "dvdnav_angle_change: %s",
dvdnav_err_to_string (src->dvdnav));
return FALSE;
}
src->did_seek = TRUE;
return TRUE;
}
static void
dvdnavsrc_update_streaminfo (DVDNavSrc * src)
{
GstCaps *caps;
GstStructure *structure;
gint64 value;
caps = gst_caps_new_empty ();
structure = gst_structure_empty_new ("application/x-gst-streaminfo");
gst_caps_append_structure (caps, structure);
if (dvdnavsrc_query (src->srcpad, GST_QUERY_TOTAL, &title_format, &value)) {
gst_caps_set_simple (caps, "titles", G_TYPE_INT, value, NULL);
}
if (dvdnavsrc_query (src->srcpad, GST_QUERY_POSITION, &title_format, &value)) {
gst_caps_set_simple (caps, "title", G_TYPE_INT, value, NULL);
}
if (dvdnavsrc_query (src->srcpad, GST_QUERY_TOTAL, &chapter_format, &value)) {
gst_caps_set_simple (caps, "chapters", G_TYPE_INT, value, NULL);
}
if (dvdnavsrc_query (src->srcpad, GST_QUERY_POSITION,
&chapter_format, &value)) {
gst_caps_set_simple (caps, "chapter", G_TYPE_INT, value, NULL);
}
if (dvdnavsrc_query (src->srcpad, GST_QUERY_TOTAL, &angle_format, &value)) {
gst_caps_set_simple (caps, "angles", G_TYPE_INT, value, NULL);
}
if (dvdnavsrc_query (src->srcpad, GST_QUERY_POSITION, &angle_format, &value)) {
gst_caps_set_simple (caps, "angle", G_TYPE_INT, value, NULL);
}
if (src->streaminfo) {
gst_caps_free (src->streaminfo);
}
src->streaminfo = caps;
g_object_notify (G_OBJECT (src), "streaminfo");
}
/*
* Check for a new DVD domain area, and update the structure if
* necessary.
*/
static void
dvdnavsrc_set_domain (DVDNavSrc * src)
{
DVDNavSrcDomainType domain;
if (dvdnav_is_domain_fp (src->dvdnav)) {
domain = DVDNAVSRC_DOMAIN_FP;
} else if (dvdnav_is_domain_vmgm (src->dvdnav)) {
domain = DVDNAVSRC_DOMAIN_VMGM;
} else if (dvdnav_is_domain_vtsm (src->dvdnav)) {
domain = DVDNAVSRC_DOMAIN_VTSM;
} else if (dvdnav_is_domain_vts (src->dvdnav)) {
domain = DVDNAVSRC_DOMAIN_VTS;
} else {
domain = DVDNAVSRC_DOMAIN_UNKNOWN;
}
/* FIXME: We may send a signal if we have a new domain. */
src->domain = domain;
}
/*
* Check for a new highlighted area, and send an spu highlight event if
* necessary.
*/
static void
dvdnavsrc_update_highlight (DVDNavSrc * src)
{
int button = 0;
pci_t *pci;
dvdnav_highlight_area_t area;
GstEvent *event;
DVDNAV_CALL (dvdnav_get_current_highlight, (src->dvdnav, &button), src);
pci = dvdnav_get_current_nav_pci (src->dvdnav);
if ((button > pci->hli.hl_gi.btn_ns) || (button < 0)) {
/* button is out of the range of possible buttons. */
button = 0;
}
if (!pci->hli.hl_gi.hli_ss) {
/* Not in menu */
button = 0;
}
if (button == 0) {
if (src->button != 0) {
src->button = 0;
event = dvdnavsrc_make_dvd_event (src, "dvd-spu-reset-highlight", NULL);
gst_pad_push (src->srcpad, GST_DATA (event));
}
return;
}
DVDNAV_CALL (dvdnav_get_highlight_area, (pci, button, 0, &area), src);
/* Check if we have a new button number, or a new highlight region. */
if (button != src->button ||
memcmp (&area, &(src->area), sizeof (dvdnav_highlight_area_t)) != 0) {
memcpy (&(src->area), &area, sizeof (dvdnav_highlight_area_t));
event = dvdnavsrc_make_dvd_event (src,
"dvd-spu-highlight",
"button", G_TYPE_INT, (gint) button,
"palette", G_TYPE_INT, (gint) area.palette,
"sx", G_TYPE_INT, (gint) area.sx,
"sy", G_TYPE_INT, (gint) area.sy,
"ex", G_TYPE_INT, (gint) area.ex,
"ey", G_TYPE_INT, (gint) area.ey, NULL);
if (src->button == 0) {
/* When setting the button for the first time, take the
timestamp into account. */
GST_EVENT_TIMESTAMP (event) = MPEGTIME_TO_GSTTIME (area.pts);
}
src->button = button;
GST_DEBUG ("Sending dvd-spu-highlight for button %d", button);
gst_pad_push (src->srcpad, GST_DATA (event));
}
}
static void
dvdnavsrc_user_op (DVDNavSrc * src, int op)
{
pci_t *pci = dvdnav_get_current_nav_pci (src->dvdnav);
GST_INFO_OBJECT (src, "user operation %d", op);
/* Magic user_op ids */
switch (op) {
case 0: /* None */
break;
case 1: /* Upper */
if (dvdnav_upper_button_select (src->dvdnav, pci) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 2: /* Lower */
if (dvdnav_lower_button_select (src->dvdnav, pci) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 3: /* Left */
if (dvdnav_left_button_select (src->dvdnav, pci) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 4: /* Right */
if (dvdnav_right_button_select (src->dvdnav, pci) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 5: /* Activate */
if (dvdnav_button_activate (src->dvdnav, pci) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 6: /* GoUp */
if (dvdnav_go_up (src->dvdnav) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 7: /* TopPG */
if (dvdnav_top_pg_search (src->dvdnav) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 8: /* PrevPG */
if (dvdnav_prev_pg_search (src->dvdnav) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 9: /* NextPG */
if (dvdnav_next_pg_search (src->dvdnav) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 10: /* Menu - Title */
if (dvdnav_menu_call (src->dvdnav, DVD_MENU_Title) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 11: /* Menu - Root */
if (dvdnav_menu_call (src->dvdnav, DVD_MENU_Root) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 12: /* Menu - Subpicture */
if (dvdnav_menu_call (src->dvdnav, DVD_MENU_Subpicture)
!= DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 13: /* Menu - Audio */
if (dvdnav_menu_call (src->dvdnav, DVD_MENU_Audio) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 14: /* Menu - Angle */
if (dvdnav_menu_call (src->dvdnav, DVD_MENU_Angle) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 15: /* Menu - Part */
if (dvdnav_menu_call (src->dvdnav, DVD_MENU_Part) != DVDNAV_STATUS_OK) {
goto naverr;
}
break;
case 50: /* Select button */
{
int32_t button;
dvdnav_get_current_highlight (src->dvdnav, &button);
if (button == 0) {
for (button = 1; button <= 36; button++) {
if (dvdnav_button_select (src->dvdnav, pci, button) ==
DVDNAV_STATUS_OK) {
break;
}
}
dvdnav_get_current_highlight (src->dvdnav, &button);
}
GST_INFO_OBJECT (src, "Selected button: %d", button);
}
break;
}
return;
naverr:
GST_WARNING_OBJECT (src, "user op %d failure: %s",
op, dvdnav_err_to_string (src->dvdnav));
}
#ifndef GST_DISABLE_GST_DEBUG
static gchar *
dvdnav_get_event_name (int event)
{
switch (event) {
case DVDNAV_BLOCK_OK:
return "DVDNAV_BLOCK_OK";
break;
case DVDNAV_NOP:
return "DVDNAV_NOP";
break;
case DVDNAV_STILL_FRAME:
return "DVDNAV_STILL_FRAME";
break;
case DVDNAV_WAIT:
return "DVDNAV_WAIT";
break;
case DVDNAV_SPU_STREAM_CHANGE:
return "DVDNAV_SPU_STREAM_CHANGE";
break;
case DVDNAV_AUDIO_STREAM_CHANGE:
return "DVDNAV_AUDIO_STREAM_CHANGE";
break;
case DVDNAV_VTS_CHANGE:
return "DVDNAV_VTS_CHANGE";
break;
case DVDNAV_CELL_CHANGE:
return "DVDNAV_CELL_CHANGE";
break;
case DVDNAV_NAV_PACKET:
return "DVDNAV_NAV_PACKET";
break;
case DVDNAV_STOP:
return "DVDNAV_STOP";
break;
case DVDNAV_HIGHLIGHT:
return "DVDNAV_HIGHLIGHT";
break;
case DVDNAV_SPU_CLUT_CHANGE:
return "DVDNAV_SPU_CLUT_CHANGE";
break;
case DVDNAV_HOP_CHANNEL:
return "DVDNAV_HOP_CHANNEL";
break;
}
return "UNKNOWN";
}
static gchar *
dvdnav_get_read_domain_name (dvd_read_domain_t domain)
{
switch (domain) {
case DVD_READ_INFO_FILE:
return "DVD_READ_INFO_FILE";
break;
case DVD_READ_INFO_BACKUP_FILE:
return "DVD_READ_INFO_BACKUP_FILE";
break;
case DVD_READ_MENU_VOBS:
return "DVD_READ_MENU_VOBS";
break;
case DVD_READ_TITLE_VOBS:
return "DVD_READ_TITLE_VOBS";
break;
}
return "UNKNOWN";
}
static void
dvdnavsrc_print_event (DVDNavSrc * src, guint8 * data, int event, int len)
{
g_return_if_fail (src != NULL);
g_return_if_fail (GST_IS_DVDNAVSRC (src));
GST_DEBUG_OBJECT (src, "dvdnavsrc (%p): event: %s", src,
dvdnav_get_event_name (event));
switch (event) {
case DVDNAV_BLOCK_OK:
break;
case DVDNAV_NOP:
break;
case DVDNAV_STILL_FRAME:
{
dvdnav_still_event_t *event = (dvdnav_still_event_t *) data;
GST_DEBUG_OBJECT (src, " still frame: %d seconds", event->length);
}
break;
case DVDNAV_WAIT:
{
}
break;
case DVDNAV_SPU_STREAM_CHANGE:
{
dvdnav_spu_stream_change_event_t *event =
(dvdnav_spu_stream_change_event_t *) data;
GST_DEBUG_OBJECT (src, " physical_wide: %d", event->physical_wide);
GST_DEBUG_OBJECT (src, " physical_letterbox: %d",
event->physical_letterbox);
GST_DEBUG_OBJECT (src, " physical_pan_scan: %d",
event->physical_pan_scan);
GST_DEBUG_OBJECT (src, " logical: %d", event->logical);
}
break;
case DVDNAV_AUDIO_STREAM_CHANGE:
{
dvdnav_audio_stream_change_event_t *event =
(dvdnav_audio_stream_change_event_t *) data;
GST_DEBUG_OBJECT (src, " physical: %d", event->physical);
GST_DEBUG_OBJECT (src, " logical: %d", event->logical);
}
break;
case DVDNAV_VTS_CHANGE:
{
dvdnav_vts_change_event_t *event = (dvdnav_vts_change_event_t *) data;
GST_DEBUG_OBJECT (src, " old_vtsN: %d", event->old_vtsN);
GST_DEBUG_OBJECT (src, " old_domain: %s",
dvdnav_get_read_domain_name (event->old_domain));
GST_DEBUG_OBJECT (src, " new_vtsN: %d", event->new_vtsN);
GST_DEBUG_OBJECT (src, " new_domain: %s",
dvdnav_get_read_domain_name (event->new_domain));
}
break;
case DVDNAV_CELL_CHANGE:
{
/*dvdnav_cell_change_event_t *event =
(dvdnav_cell_change_event_t *)data; */
/* FIXME: Print something relevant here. */
}
break;
case DVDNAV_NAV_PACKET:
{
/* FIXME: Print something relevant here. */
}
break;
case DVDNAV_STOP:
break;
case DVDNAV_HIGHLIGHT:
{
dvdnav_highlight_event_t *event = (dvdnav_highlight_event_t *) data;
GST_DEBUG_OBJECT (src, " display: %s",
event->display == 0 ?
"hide" : (event->display == 1 ? "show" : "unknown"));
if (event->display == 1) {
GST_DEBUG_OBJECT (src, " palette: %08x", event->palette);
GST_DEBUG_OBJECT (src, " coords (%u, %u) - (%u, %u)",
event->sx, event->sy, event->ex, event->ey);
GST_DEBUG_OBJECT (src, " pts: %u", event->pts);
GST_DEBUG_OBJECT (src, " button: %u", event->buttonN);
}
}
break;
case DVDNAV_SPU_CLUT_CHANGE:
break;
case DVDNAV_HOP_CHANNEL:
break;
default:
GST_DEBUG_OBJECT (src, " event id: %d", event);
break;
}
}
#endif /* GST_DISABLE_GST_DEBUG */
static GstEvent *
dvdnavsrc_make_dvd_event (DVDNavSrc * src, const gchar * event_name,
const gchar * firstfield, ...)
{
GstEvent *event;
GstStructure *structure;
va_list varargs;
g_return_val_if_fail (event_name != NULL, NULL);
/* Create a structure with the given fields. */
va_start (varargs, firstfield);
structure = gst_structure_new ("application/x-gst-dvd",
"event", G_TYPE_STRING, event_name, NULL);
gst_structure_set_valist (structure, firstfield, varargs);
va_end (varargs);
/* Create the DVD event and put the structure into it. */
event = gst_event_new (GST_EVENT_ANY);
event->event_data.structure.structure = structure;
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *text = gst_structure_to_string (structure);
GST_LOG_OBJECT (src, "creating event \"%s\"", text);
g_free (text);
}
#endif
return event;
}
static GstEvent *
dvdnavsrc_make_dvd_nav_packet_event (DVDNavSrc * src, const pci_t * pci)
{
GstEvent *event;
GstStructure *structure;
GValue start_ptm = { 0 }, end_ptm = {
0};
/* Store the time values in GValues. */
g_value_init (&start_ptm, G_TYPE_UINT64);
g_value_set_uint64 (&start_ptm, MPEGTIME_TO_GSTTIME (pci->pci_gi.vobu_s_ptm));
g_value_init (&end_ptm, G_TYPE_UINT64);
g_value_set_uint64 (&end_ptm, MPEGTIME_TO_GSTTIME (pci->pci_gi.vobu_e_ptm));
/* Add the values to a new structure. */
structure = gst_structure_new ("application/x-gst-dvd",
"event", G_TYPE_STRING, "dvd-nav-packet", NULL);
gst_structure_set_value (structure, "start_ptm", &start_ptm);
gst_structure_set_value (structure, "end_ptm", &end_ptm);
/* Create the DVD event and put the structure into it. */
event = gst_event_new (GST_EVENT_ANY);
event->event_data.structure.structure = structure;
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *text = gst_structure_to_string (structure);
GST_LOG_OBJECT (src, "creating event \"%s\"", text);
g_free (text);
}
#endif
return event;
}
static GstEvent *
dvdnavsrc_make_clut_change_event (DVDNavSrc * src, const guint * clut)
{
GstEvent *event;
GstStructure *structure;
guchar name[16];
int i;
structure = gst_structure_new ("application/x-gst-dvd",
"event", G_TYPE_STRING, "dvd-spu-clut-change", NULL);
/* Create a separate field for each value in the table. */
for (i = 0; i < 16; i++) {
sprintf (name, "clut%02d", i);
gst_structure_set (structure, name, G_TYPE_INT, (int) clut[i], NULL);
}
/* Create the DVD event and put the structure into it. */
event = gst_event_new (GST_EVENT_ANY);
event->event_data.structure.structure = structure;
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *text = gst_structure_to_string (structure);
GST_LOG_OBJECT (src, "creating event \"%s\"", text);
g_free (text);
}
#endif
return event;
}
static void
dvdnavsrc_loop (GstElement * element)
{
DVDNavSrc *src = DVDNAVSRC (element);
int event, len;
guint8 *data;
GstData *send_data;
g_return_if_fail (dvdnavsrc_is_open (src));
if (src->did_seek || src->need_newmedia) {
GstEvent *event;
src->did_seek = FALSE;
GST_INFO_OBJECT (src, "sending discont");
event = gst_event_new_discontinuous (src->need_newmedia, 0);
src->need_flush = FALSE;
src->need_newmedia = FALSE;
gst_pad_push (src->srcpad, GST_DATA (event));
return;
}
if (src->need_flush) {
src->need_flush = FALSE;
GST_INFO_OBJECT (src, "sending flush");
gst_pad_push (src->srcpad, GST_DATA (gst_event_new_flush ()));
return;
}
/* Loop processing blocks until there is data to send. */
send_data = NULL;
while (send_data == NULL) {
if (src->cur_buf == NULL) {
src->cur_buf = gst_buffer_new_and_alloc (DVD_VIDEO_LB_LEN);
if (src->cur_buf == NULL) {
GST_ELEMENT_ERROR (src, CORE, TOO_LAZY, (NULL),
("Failed to create a new GstBuffer"));
return;
}
}
data = GST_BUFFER_DATA (src->cur_buf);
DVDNAV_CALL (dvdnav_get_next_block, (src->dvdnav, data, &event, &len), src);
switch (event) {
case DVDNAV_NOP:
break;
case DVDNAV_BLOCK_OK:
send_data = GST_DATA (src->cur_buf);
src->cur_buf = NULL;
break;
case DVDNAV_STILL_FRAME:
{
dvdnav_still_event_t *info = (dvdnav_still_event_t *) data;
GstClockTime current_time = gst_element_get_time (GST_ELEMENT (src));
if (src->pause_mode == DVDNAVSRC_PAUSE_OFF) {
dvdnavsrc_print_event (src, data, event, len);
/* We just saw a still frame. Start a pause now. */
if (info->length == 0xff) {
GST_INFO_OBJECT (src, "starting unlimited pause");
src->pause_mode = DVDNAVSRC_PAUSE_UNLIMITED;
} else {
src->pause_mode = DVDNAVSRC_PAUSE_LIMITED;
src->pause_end = current_time + info->length * GST_SECOND;
GST_INFO_OBJECT (src,
"starting limited pause: %d seconds at %llu until %llu",
info->length, current_time, src->pause_end);
}
/* For the moment, send the first empty event to let
everyone know that we are displaying a still frame.
Subsequent calls to this function will take care of
the rest of the pause. */
GST_DEBUG_OBJECT (src, "sending still frame event");
send_data = GST_DATA (dvdnavsrc_make_dvd_event (src,
"dvd-spu-still-frame", NULL));
break;
}
if (src->pause_mode == DVDNAVSRC_PAUSE_UNLIMITED ||
current_time < src->pause_end) {
GstEvent *event;
/* We are in pause mode. Make this element sleep for a
fraction of a second. */
if (current_time + DVDNAVSRC_PAUSE_INTERVAL > src->pause_end) {
gst_element_wait (GST_ELEMENT (src), src->pause_end);
} else {
gst_element_wait (GST_ELEMENT (src),
current_time + DVDNAVSRC_PAUSE_INTERVAL);
}
/* Send an empty event to keep the pipeline going. */
/* FIXME: Use an interrupt/filler event here. */
event = gst_event_new (GST_EVENT_EMPTY);
send_data = GST_DATA (event);
GST_EVENT_TIMESTAMP (event) =
gst_element_get_time (GST_ELEMENT (src));
break;
} else {
/* We reached the end of the pause. */
src->pause_mode = DVDNAVSRC_PAUSE_OFF;
DVDNAV_CALL (dvdnav_still_skip, (src->dvdnav), src);
}
}
break;
case DVDNAV_WAIT:
/* FIXME: We should really wait here until the fifos are
empty, but I have no idea how to do that. In the mean time,
just clean the wait state. */
GST_INFO_OBJECT (src, "sending wait");
DVDNAV_CALL (dvdnav_wait_skip, (src->dvdnav), src);
break;
case DVDNAV_STOP:
GST_INFO_OBJECT (src, "sending eos");
gst_element_set_eos (GST_ELEMENT (src));
dvdnavsrc_close (src);
send_data = GST_DATA (gst_event_new (GST_EVENT_EOS));
break;
case DVDNAV_CELL_CHANGE:
dvdnavsrc_update_streaminfo (src);
break;
case DVDNAV_NAV_PACKET:
{
pci_t *pci = dvdnav_get_current_nav_pci (src->dvdnav);
/* Check for forced buttons. */
if (pci->hli.hl_gi.hli_ss == 1) {
GST_LOG_OBJECT (src, "menu ahead");
if (pci->hli.hl_gi.fosl_btnn > 0) {
GST_DEBUG_OBJECT (src, "forced button");
dvdnav_button_select (src->dvdnav, pci, pci->hli.hl_gi.fosl_btnn);
}
}
dvdnavsrc_update_highlight (src);
/* Send a dvd nav packet event. */
send_data = GST_DATA (dvdnavsrc_make_dvd_nav_packet_event (src, pci));
}
break;
case DVDNAV_SPU_CLUT_CHANGE:
send_data = GST_DATA (dvdnavsrc_make_clut_change_event (src,
(guint *) data));
break;
case DVDNAV_VTS_CHANGE:
{
dvdnavsrc_set_domain (src);
send_data = GST_DATA (dvdnavsrc_make_dvd_event (src,
"dvd-vts-change", "domain",
G_TYPE_INT, (gint) src->domain, NULL));
}
break;
case DVDNAV_AUDIO_STREAM_CHANGE:
{
dvdnav_audio_stream_change_event_t *info =
(dvdnav_audio_stream_change_event_t *) data;
int phys = info->physical;
dvdnavsrc_print_event (src, data, event, len);
if (phys < 0 || phys > DVDNAVSRC_MAX_AUDIO_STREAMS) {
phys = -1;
}
if (phys == src->audio_phys &&
dvdnav_get_active_audio_stream (src->dvdnav) == src->audio_log) {
/* Audio state hasn't changed. */
break;
}
src->audio_phys = phys;
src->audio_log = dvdnav_get_active_audio_stream (src->dvdnav);
send_data = GST_DATA (dvdnavsrc_make_dvd_event (src,
"dvd-audio-stream-change",
"physical", G_TYPE_INT, (gint) src->audio_phys,
"logical", G_TYPE_INT, (gint) src->audio_log, NULL));
}
break;
case DVDNAV_SPU_STREAM_CHANGE:
{
dvdnav_spu_stream_change_event_t *info =
(dvdnav_spu_stream_change_event_t *) data;
/* FIXME: Which type of physical stream to use here should
be configurable through a property. We take widescreen
for the moment. */
int phys = info->physical_wide;
dvdnavsrc_print_event (src, data, event, len);
if (phys < 0 || phys > DVDNAVSRC_MAX_SPU_STREAMS) {
phys = -1;
}
if (phys == src->subp_phys &&
dvdnav_get_active_spu_stream (src->dvdnav) == src->subp_log) {
/* Subpicture state hasn't changed. */
break;
}
src->subp_phys = phys;
src->subp_log = dvdnav_get_active_spu_stream (src->dvdnav);
send_data = GST_DATA (dvdnavsrc_make_dvd_event (src,
"dvd-spu-stream-change",
"physical", G_TYPE_INT, (gint) phys,
"logical", G_TYPE_INT,
(gint) dvdnav_get_active_spu_stream (src->dvdnav), NULL));
}
break;
case DVDNAV_HIGHLIGHT:
dvdnavsrc_print_event (src, data, event, len);
dvdnavsrc_update_highlight (src);
break;
case DVDNAV_HOP_CHANNEL:
dvdnavsrc_print_event (src, data, event, len);
src->button = 0;
src->pause_mode = DVDNAVSRC_PAUSE_OFF;
send_data = GST_DATA (gst_event_new_flush ());
break;
default:
g_error ("dvdnavsrc: Unknown dvdnav event %d", event);
break;
}
}
gst_pad_push (src->srcpad, send_data);
}
/* open the file, necessary to go to RUNNING state */
static gboolean
dvdnavsrc_open (DVDNavSrc * src)
{
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_DVDNAVSRC (src), FALSE);
g_return_val_if_fail (!dvdnavsrc_is_open (src), FALSE);
g_return_val_if_fail (src->location != NULL, FALSE);
if (dvdnav_open (&src->dvdnav, (char *) src->location) != DVDNAV_STATUS_OK) {
GST_ELEMENT_ERROR (src, LIBRARY, FAILED,
(_("Failed to open DVD device '%s'."), src->location),
GST_ERROR_SYSTEM);
return FALSE;
}
GST_FLAG_SET (src, DVDNAVSRC_OPEN);
/* Read the first block before seeking to force a libdvdnav internal
* call to vm_start, otherwise it ignores our seek position.
* This happens because vm_start sets the domain to the first-play (FP)
* domain, overriding any other title that has been set.
* Track/chapter setting used to work, but libdvdnav has delayed the call
* to vm_start from _open, to _get_block.
* FIXME: But, doing it this way has problems too, as there is no way to
* get back to the FP domain.
* Maybe we could title==0 to mean FP domain, and not do this read & seek.
* If title subsequently gets set to 0, we would need to dvdnav_close
* followed by dvdnav_open to get back to the FP domain.
* Since we dont currently support seeking by setting the title/chapter/angle
* after opening, we'll forget about close/open for now, and just do the
* title==0 thing.
*/
if (src->title > 0) {
unsigned char buf[2048];
int event, buflen = sizeof (buf);
DVDNAV_CALLVAL (dvdnav_get_next_block,
(src->dvdnav, buf, &event, &buflen), src, FALSE);
dvdnavsrc_print_event (src, buf, event, buflen);
if (!dvdnavsrc_tca_seek (src, src->title, src->chapter, src->angle)) {
return FALSE;
}
}
return TRUE;
}
/* close the file */
static gboolean
dvdnavsrc_close (DVDNavSrc * src)
{
g_return_val_if_fail (src != NULL, FALSE);
g_return_val_if_fail (GST_IS_DVDNAVSRC (src), FALSE);
g_return_val_if_fail (dvdnavsrc_is_open (src), FALSE);
g_return_val_if_fail (src->dvdnav != NULL, FALSE);
DVDNAV_CALLVAL (dvdnav_close, (src->dvdnav), src, FALSE);
GST_FLAG_UNSET (src, DVDNAVSRC_OPEN);
return TRUE;
}
static GstStateChangeReturn
dvdnavsrc_change_state (GstElement * element, GstStateChange transition)
{
DVDNavSrc *src;
g_return_val_if_fail (GST_IS_DVDNAVSRC (element), GST_STATE_CHANGE_FAILURE);
src = DVDNAVSRC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!dvdnavsrc_is_open (src)) {
if (!dvdnavsrc_open (src)) {
return GST_STATE_CHANGE_FAILURE;
}
}
src->streaminfo = NULL;
src->need_newmedia = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (dvdnavsrc_is_open (src)) {
if (!dvdnavsrc_close (src)) {
return GST_STATE_CHANGE_FAILURE;
}
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
}
/* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return GST_STATE_CHANGE_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_FLUSH, 0},
{GST_EVENT_NAVIGATION, GST_EVENT_FLAG_NONE},
{0,}
};
return masks;
}
static gboolean
dvdnav_handle_navigation_event (DVDNavSrc * src, GstEvent * event)
{
GstStructure *structure = event->event_data.structure.structure;
const char *event_type = gst_structure_get_string (structure, "event");
g_return_val_if_fail (event != NULL, FALSE);
if (strcmp (event_type, "key-press") == 0) {
const char *key = gst_structure_get_string (structure, "key");
g_assert (key != NULL);
GST_DEBUG ("dvdnavsrc got a keypress: %s", key);
} else if (strcmp (event_type, "mouse-move") == 0) {
double x, y;
gst_structure_get_double (structure, "pointer_x", &x);
gst_structure_get_double (structure, "pointer_y", &y);
dvdnav_mouse_select (src->dvdnav,
dvdnav_get_current_nav_pci (src->dvdnav), (int) x, (int) y);
dvdnavsrc_update_highlight (src);
} else if (strcmp (event_type, "mouse-button-release") == 0) {
double x, y;
gst_structure_get_double (structure, "pointer_x", &x);
gst_structure_get_double (structure, "pointer_y", &y);
dvdnav_mouse_activate (src->dvdnav,
dvdnav_get_current_nav_pci (src->dvdnav), (int) x, (int) y);
}
return TRUE;
}
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;
int origin;
format = GST_EVENT_SEEK_FORMAT (event);
offset = GST_EVENT_SEEK_OFFSET (event);
switch (format) {
case GST_FORMAT_BYTES:
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
origin = SEEK_SET;
break;
case GST_SEEK_METHOD_CUR:
origin = SEEK_CUR;
break;
case GST_SEEK_METHOD_END:
origin = SEEK_END;
break;
default:
goto error;
}
if (dvdnav_sector_search (src->dvdnav, (offset / DVD_SECTOR_SIZE),
origin) != DVDNAV_STATUS_OK) {
goto error;
}
default:
if (format == sector_format) {
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
origin = SEEK_SET;
break;
case GST_SEEK_METHOD_CUR:
origin = SEEK_CUR;
break;
case GST_SEEK_METHOD_END:
origin = SEEK_END;
break;
default:
goto error;
}
if (dvdnav_sector_search (src->dvdnav, offset, origin) !=
DVDNAV_STATUS_OK) {
goto error;
}
} else if (format == title_format) {
if (dvdnav_current_title_info (src->dvdnav, &title, &part) !=
DVDNAV_STATUS_OK) {
goto error;
}
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) {
if (dvdnav_current_title_info (src->dvdnav, &title, &part) !=
DVDNAV_STATUS_OK) {
goto error;
}
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_titles (src->dvdnav, &parts) !=
DVDNAV_STATUS_OK) {
goto error;
}
new_part = parts + offset;
break;
default:
goto error;
}
/*if (dvdnav_part_search(src->dvdnav, new_part) != */
if (dvdnav_part_play (src->dvdnav, title, new_part) !=
DVDNAV_STATUS_OK) {
goto error;
}
} else if (format == angle_format) {
if (dvdnav_get_angle_info (src->dvdnav, &angle, &angles) !=
DVDNAV_STATUS_OK) {
goto error;
}
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:
new_angle = angles + offset;
break;
default:
goto error;
}
if (dvdnav_angle_change (src->dvdnav, new_angle) !=
DVDNAV_STATUS_OK) {
goto error;
}
} else {
goto error;
}
}
src->did_seek = TRUE;
src->need_flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
break;
}
case GST_EVENT_NAVIGATION:
res = dvdnav_handle_navigation_event (src, event);
break;
case GST_EVENT_FLUSH:
src->need_flush = TRUE;
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_BYTES,
/*
GST_FORMAT_TIME,
GST_FORMAT_DEFAULT,
*/
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;
}
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_BYTES:
if (*dest_format == sector_format) {
*dest_value = src_value / DVD_SECTOR_SIZE;
} else
return FALSE;
default:
if ((src_format == sector_format) && (*dest_format == GST_FORMAT_BYTES)) {
*dest_value = src_value * DVD_SECTOR_SIZE;
} else
return FALSE;
}
return TRUE;
}
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;
unsigned int pos, len;
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 == sector_format) {
if (dvdnav_get_position (src->dvdnav, &pos, &len)
!= DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = len;
} else if (*format == GST_FORMAT_BYTES) {
if (dvdnav_get_position (src->dvdnav, &pos, &len) != DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = len * DVD_SECTOR_SIZE;
} else 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_titles (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 == sector_format) {
if (dvdnav_get_position (src->dvdnav, &pos, &len)
!= DVDNAV_STATUS_OK) {
res = FALSE;
}
*value = pos;
} else 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;
}
/*
* URI interface.
*/
static guint
dvdnavsrc_uri_get_type (void)
{
return GST_URI_SRC;
}
static gchar **
dvdnavsrc_uri_get_protocols (void)
{
static gchar *protocols[] = { "dvdnav", NULL };
return protocols;
}
static const gchar *
dvdnavsrc_uri_get_uri (GstURIHandler * handler)
{
return "dvdnav://";
}
static gboolean
dvdnavsrc_uri_set_uri (GstURIHandler * handler, const gchar * uri)
{
gboolean ret;
gchar *protocol = gst_uri_get_protocol (uri);
ret = (protocol && !strcmp (protocol, "dvdnav")) ? TRUE : FALSE;
g_free (protocol);
return ret;
}
static void
dvdnavsrc_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = dvdnavsrc_uri_get_type;
iface->get_protocols = dvdnavsrc_uri_get_protocols;
iface->get_uri = dvdnavsrc_uri_get_uri;
iface->set_uri = dvdnavsrc_uri_set_uri;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "dvdnavsrc", GST_RANK_NONE,
GST_TYPE_DVDNAVSRC))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"dvdnavsrc",
"Access a DVD with navigation features using libdvdnav",
plugin_init, VERSION, "GPL", GST_PACKAGE, GST_ORIGIN)
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