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gstreamer/ext/resindvd/resindvdbin.c

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/* GStreamer
* Copyright (C) 2008 Jan Schmidt <thaytan@noraisin.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <gst/gst.h>
#include <gst/glib-compat-private.h>
#include <gst/pbutils/missing-plugins.h>
#include <gst/video/video.h>
#include <gst/audio/audio.h>
#include "resindvdbin.h"
#include "resindvdsrc.h"
#include "rsninputselector.h"
#include "rsndec.h"
#include "rsnparsetter.h"
#include "gstmpegdemux.h"
#define RSN_TYPE_INPUT_SELECTOR GST_TYPE_INPUT_SELECTOR
GST_DEBUG_CATEGORY_EXTERN (resindvd_debug);
#define GST_CAT_DEFAULT resindvd_debug
#define DVDBIN_LOCK(d) g_mutex_lock(&(d)->dvd_lock)
#define DVDBIN_UNLOCK(d) g_mutex_unlock(&(d)->dvd_lock)
#define DVDBIN_PREROLL_LOCK(d) g_mutex_lock(&(d)->preroll_lock)
#define DVDBIN_PREROLL_UNLOCK(d) g_mutex_unlock(&(d)->preroll_lock)
#define DEFAULT_DEVICE "/dev/dvd"
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_DEVICE
};
static GstStaticPadTemplate video_src_template =
GST_STATIC_PAD_TEMPLATE ("video",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL))
);
static GstStaticPadTemplate audio_src_template =
GST_STATIC_PAD_TEMPLATE ("audio",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL))
);
static GstStaticPadTemplate subpicture_src_template =
GST_STATIC_PAD_TEMPLATE ("subpicture",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS ("subpicture/x-dvd")
);
static void rsn_dvdbin_finalize (GObject * object);
static void rsn_dvdbin_uri_handler_init (gpointer g_iface, gpointer iface_data);
#define rsn_dvdbin_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (RsnDvdBin, rsn_dvdbin, GST_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER, rsn_dvdbin_uri_handler_init));
static void demux_pad_added (GstElement * element, GstPad * pad,
RsnDvdBin * dvdbin);
static void demux_no_more_pads (GstElement * element, RsnDvdBin * dvdbin);
static void rsn_dvdbin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void rsn_dvdbin_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn rsn_dvdbin_change_state (GstElement * element,
GstStateChange transition);
static void rsn_dvdbin_no_more_pads (RsnDvdBin * dvdbin);
static void
rsn_dvdbin_class_init (RsnDvdBinClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = (GstElementClass *) klass;
gobject_class->finalize = rsn_dvdbin_finalize;
gobject_class->set_property = rsn_dvdbin_set_property;
gobject_class->get_property = rsn_dvdbin_get_property;
g_object_class_install_property (gobject_class, ARG_DEVICE,
g_param_spec_string ("device", "Device", "DVD device location",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_static_pad_template (element_class,
&video_src_template);
gst_element_class_add_static_pad_template (element_class,
&audio_src_template);
gst_element_class_add_static_pad_template (element_class,
&subpicture_src_template);
element_class->change_state = GST_DEBUG_FUNCPTR (rsn_dvdbin_change_state);
gst_element_class_set_static_metadata (element_class, "rsndvdbin",
"Generic/Bin/Player",
"DVD playback element", "Jan Schmidt <thaytan@noraisin.net>");
}
static void
rsn_dvdbin_init (RsnDvdBin * dvdbin)
{
g_mutex_init (&dvdbin->dvd_lock);
g_mutex_init (&dvdbin->preroll_lock);
}
static void
rsn_dvdbin_finalize (GObject * object)
{
RsnDvdBin *dvdbin = RESINDVDBIN (object);
g_mutex_clear (&dvdbin->dvd_lock);
g_mutex_clear (&dvdbin->preroll_lock);
g_free (dvdbin->last_uri);
g_free (dvdbin->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* URI interface */
static GstURIType
rsn_dvdbin_uri_get_type (GType type)
{
return GST_URI_SRC;
}
static const gchar *const *
rsn_dvdbin_uri_get_protocols (GType type)
{
static const gchar *protocols[] = { "dvd", NULL };
return protocols;
}
static gchar *
rsn_dvdbin_uri_get_uri (GstURIHandler * handler)
{
RsnDvdBin *dvdbin = RESINDVDBIN (handler);
DVDBIN_LOCK (dvdbin);
g_free (dvdbin->last_uri);
if (dvdbin->device)
dvdbin->last_uri = g_strdup_printf ("dvd://%s", dvdbin->device);
else
dvdbin->last_uri = g_strdup ("dvd://");
DVDBIN_UNLOCK (dvdbin);
return g_strdup (dvdbin->last_uri);
}
static gboolean
rsn_dvdbin_uri_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** error)
{
RsnDvdBin *dvdbin = RESINDVDBIN (handler);
gboolean ret;
gchar *protocol, *location;
protocol = gst_uri_get_protocol (uri);
ret = (protocol && !strcmp (protocol, "dvd")) ? TRUE : FALSE;
g_free (protocol);
protocol = NULL;
if (!ret)
return ret;
location = gst_uri_get_location (uri);
if (!location)
return ret;
/*
* URI structure: dvd:///path/to/device
*/
if (g_str_has_prefix (uri, "dvd://")) {
g_free (dvdbin->device);
if (strlen (uri) > 6)
dvdbin->device = g_strdup (uri + 6);
else
dvdbin->device = g_strdup (DEFAULT_DEVICE);
}
#if 0
/*
* Parse out the new t/c/a and seek to them
*/
{
gchar **strs;
gchar **strcur;
gint pos = 0;
strcur = strs = g_strsplit (location, ",", 0);
while (strcur && *strcur) {
gint val;
if (!sscanf (*strcur, "%d", &val))
break;
switch (pos) {
case 0:
if (val != dvdbin->uri_title) {
dvdbin->uri_title = val;
dvdbin->new_seek = TRUE;
}
break;
case 1:
if (val != dvdbin->uri_chapter) {
dvdbin->uri_chapter = val;
dvdbin->new_seek = TRUE;
}
break;
case 2:
dvdbin->uri_angle = val;
break;
}
strcur++;
pos++;
}
g_strfreev (strs);
}
#endif
g_free (location);
return ret;
}
static void
rsn_dvdbin_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = rsn_dvdbin_uri_get_type;
iface->get_protocols = rsn_dvdbin_uri_get_protocols;
iface->get_uri = rsn_dvdbin_uri_get_uri;
iface->set_uri = rsn_dvdbin_uri_set_uri;
}
static void
rsn_dvdbin_no_more_pads (RsnDvdBin * dvdbin)
{
if (dvdbin->did_no_more_pads)
return;
dvdbin->did_no_more_pads = TRUE;
GST_DEBUG_OBJECT (dvdbin, "Firing no more pads");
/* Shrink subpicture queue to smaller size */
g_object_set (dvdbin->pieces[DVD_ELEM_SPUQ],
"max-size-time", G_GUINT64_CONSTANT (0), "max-size-bytes", 0,
"max-size-buffers", 1, NULL);
gst_element_no_more_pads (GST_ELEMENT (dvdbin));
}
static gboolean
try_create_piece (RsnDvdBin * dvdbin, gint index,
const gchar * factory, GType type, const gchar * name, const gchar * descr)
{
GstElement *e;
DVDBIN_LOCK (dvdbin);
if (dvdbin->pieces[index] != NULL) {
DVDBIN_UNLOCK (dvdbin);
return TRUE; /* Already exists */
}
DVDBIN_UNLOCK (dvdbin);
if (factory != NULL) {
e = gst_element_factory_make (factory, name);
} else {
if (name)
e = g_object_new (type, "name", name, NULL);
else
e = g_object_new (type, NULL);
}
if (e == NULL)
goto create_failed;
if (!gst_bin_add (GST_BIN (dvdbin), e))
goto add_failed;
GST_DEBUG_OBJECT (dvdbin, "Added %s element: %" GST_PTR_FORMAT, descr, e);
DVDBIN_LOCK (dvdbin);
dvdbin->pieces[index] = e;
DVDBIN_UNLOCK (dvdbin);
return TRUE;
create_failed:
gst_element_post_message (GST_ELEMENT_CAST (dvdbin),
gst_missing_element_message_new (GST_ELEMENT_CAST (dvdbin), factory));
GST_ELEMENT_ERROR (dvdbin, CORE, MISSING_PLUGIN, (NULL),
("Could not create %s element '%s'", descr, factory));
return FALSE;
add_failed:
gst_object_unref (e);
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not add %s element to bin", descr));
return FALSE;
}
typedef struct
{
RsnDvdBin *dvdbin;
GstPad *pad;
gulong pad_block_id;
} RsnDvdBinPadBlockCtx;
static GstPadProbeReturn dvdbin_pad_blocked_cb (GstPad * pad,
GstPadProbeInfo * info, RsnDvdBinPadBlockCtx * ctx);
static void
_pad_block_destroy_notify (RsnDvdBinPadBlockCtx * ctx)
{
gst_object_unref (ctx->dvdbin);
gst_object_unref (ctx->pad);
g_slice_free (RsnDvdBinPadBlockCtx, ctx);
}
#if DEBUG_TIMING
static GstPadProbeReturn
dvdbin_dump_timing_info (GstPad * opad,
GstPadProbeInfo * info, gpointer userdata)
{
if (GST_PAD_PROBE_INFO_TYPE (info) & (GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM |
GST_PAD_PROBE_TYPE_EVENT_FLUSH)) {
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
if (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT) {
const GstSegment *seg;
gst_event_parse_segment (event, &seg);
g_print ("%s:%s segment: rate %g format %d, start: %"
GST_TIME_FORMAT ", stop: %" GST_TIME_FORMAT ", time: %"
GST_TIME_FORMAT " base: %" GST_TIME_FORMAT "\n",
GST_DEBUG_PAD_NAME (opad),
seg->rate, seg->format, GST_TIME_ARGS (seg->start),
GST_TIME_ARGS (seg->stop), GST_TIME_ARGS (seg->time),
GST_TIME_ARGS (seg->base));
} else if (GST_EVENT_TYPE (event) == GST_EVENT_GAP) {
GstClockTime ts, dur, end;
gst_event_parse_gap (event, &ts, &dur);
end = ts;
if (ts != GST_CLOCK_TIME_NONE && dur != GST_CLOCK_TIME_NONE)
end += dur;
g_print ("%s:%s Gap TS: %" GST_TIME_FORMAT " dur %" GST_TIME_FORMAT
" (to %" GST_TIME_FORMAT ")\n", GST_DEBUG_PAD_NAME (opad),
GST_TIME_ARGS (ts), GST_TIME_ARGS (dur), GST_TIME_ARGS (end));
} else if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) {
g_print ("%s:%s FLUSHED\n", GST_DEBUG_PAD_NAME (opad));
}
}
if (GST_PAD_PROBE_INFO_TYPE (info) & GST_PAD_PROBE_TYPE_BUFFER) {
GstBuffer *buf = GST_PAD_PROBE_INFO_BUFFER (info);
g_print ("%s:%s Buffer PTS %" GST_TIME_FORMAT " duration %" GST_TIME_FORMAT
"\n", GST_DEBUG_PAD_NAME (opad), GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
}
return GST_PAD_PROBE_OK;
}
#endif
static gboolean
try_link_pieces (GstElement * e1, const gchar * pad1, GstElement * e2,
const gchar * pad2)
{
GstPad *src = gst_element_get_static_pad (e1, pad1);
GstPad *sink = gst_element_get_static_pad (e2, pad2);
gboolean ret = FALSE;
if (src == NULL || sink == NULL)
goto done;
if (GST_PAD_LINK_FAILED (gst_pad_link (src, sink)))
goto done;
ret = TRUE;
done:
if (src)
gst_object_unref (src);
if (sink)
gst_object_unref (sink);
return ret;
}
static gboolean
create_elements (RsnDvdBin * dvdbin)
{
GstPadTemplate *src_templ = NULL;
GstPad *src = NULL;
GstPad *sink = NULL;
RsnDvdBinPadBlockCtx *bctx = NULL;
if (!try_create_piece (dvdbin, DVD_ELEM_SOURCE, NULL,
RESIN_TYPE_DVDSRC, "dvdsrc", "DVD source")) {
return FALSE;
}
/* FIXME: Locking */
if (dvdbin->device) {
g_object_set (G_OBJECT (dvdbin->pieces[DVD_ELEM_SOURCE]),
"device", dvdbin->device, NULL);
}
/* FIXME: Import and use local copy of mpeg PS demuxer */
if (!try_create_piece (dvdbin, DVD_ELEM_DEMUX,
NULL, GST_TYPE_FLUPS_DEMUX, "dvddemux", "DVD demuxer"))
return FALSE;
if (gst_element_link (dvdbin->pieces[DVD_ELEM_SOURCE],
dvdbin->pieces[DVD_ELEM_DEMUX]) == FALSE)
goto failed_connect;
/* Listen for new pads from the demuxer */
g_signal_connect (G_OBJECT (dvdbin->pieces[DVD_ELEM_DEMUX]), "pad-added",
G_CALLBACK (demux_pad_added), dvdbin);
g_signal_connect (G_OBJECT (dvdbin->pieces[DVD_ELEM_DEMUX]), "no-more-pads",
G_CALLBACK (demux_no_more_pads), dvdbin);
if (!try_create_piece (dvdbin, DVD_ELEM_MQUEUE, "multiqueue", 0, "rsnmq",
"multiqueue"))
return FALSE;
g_object_set (dvdbin->pieces[DVD_ELEM_MQUEUE],
"max-size-time", (7 * GST_SECOND / 10), "max-size-bytes", 0,
"max-size-buffers", 0, NULL);
if (!try_create_piece (dvdbin, DVD_ELEM_VIDPARSE, "mpegvideoparse", 0,
"rsnvidparse", "video parser"))
return FALSE;
/* Decodebin will throw a missing element message to find an MPEG decoder */
if (!try_create_piece (dvdbin, DVD_ELEM_VIDDEC, NULL, RSN_TYPE_VIDEODEC,
"rsnviddec", "video decoder"))
return FALSE;
/* FIXME: Replace identity */
if (!try_create_piece (dvdbin, DVD_ELEM_PARSET, NULL, RSN_TYPE_RSNPARSETTER,
"rsnparsetter", "Aspect ratio adjustment"))
return FALSE;
if (!try_link_pieces (dvdbin->pieces[DVD_ELEM_VIDPARSE], "src",
dvdbin->pieces[DVD_ELEM_VIDDEC], "sink"))
goto failed_vidparse_connect;
src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_VIDDEC], "src");
sink = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_PARSET], "sink");
if (src == NULL || sink == NULL)
goto failed_viddec_connect;
if (GST_PAD_LINK_FAILED (gst_pad_link (src, sink)))
goto failed_viddec_connect;
gst_object_unref (src);
gst_object_unref (sink);
src = sink = NULL;
src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_PARSET], "src");
if (src == NULL)
goto failed_video_ghost;
src_templ = gst_static_pad_template_get (&video_src_template);
dvdbin->video_pad = gst_ghost_pad_new_from_template ("video", src, src_templ);
gst_object_unref (src_templ);
if (dvdbin->video_pad == NULL)
goto failed_video_ghost;
gst_pad_set_active (dvdbin->video_pad, TRUE);
bctx = g_slice_new (RsnDvdBinPadBlockCtx);
bctx->dvdbin = gst_object_ref (dvdbin);
bctx->pad = gst_object_ref (dvdbin->video_pad);
bctx->pad_block_id =
gst_pad_add_probe (src, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) dvdbin_pad_blocked_cb, bctx, (GDestroyNotify)
_pad_block_destroy_notify);
gst_object_unref (src);
src = NULL;
#if DEBUG_TIMING
gst_pad_add_probe (dvdbin->video_pad,
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM | GST_PAD_PROBE_TYPE_BUFFER |
GST_PAD_PROBE_TYPE_EVENT_FLUSH,
(GstPadProbeCallback) dvdbin_dump_timing_info, NULL, NULL);
#endif
/* FIXME: Merge stream-selection logic to core and switch back */
if (!try_create_piece (dvdbin, DVD_ELEM_SPU_SELECT, NULL,
RSN_TYPE_INPUT_SELECTOR, "subpselect", "Subpicture stream selector"))
return FALSE;
g_object_set (G_OBJECT (dvdbin->pieces[DVD_ELEM_SPU_SELECT]),
"sync-streams", FALSE, NULL);
/* Add a single standalone queue to hold a single buffer of SPU data */
if (!try_create_piece (dvdbin, DVD_ELEM_SPUQ, "queue", 0, "spu_q",
"subpicture decoder buffer"))
return FALSE;
/* Allow a lot more while pre-rolling */
g_object_set (dvdbin->pieces[DVD_ELEM_SPUQ],
"max-size-time", G_GUINT64_CONSTANT (0), "max-size-bytes", 0,
"max-size-buffers", 100, NULL);
src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_SPU_SELECT], "src");
sink = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_SPUQ], "sink");
if (src == NULL || sink == NULL)
goto failed_spuq_connect;
if (GST_PAD_LINK_FAILED (gst_pad_link (src, sink)))
goto failed_spuq_connect;
gst_object_unref (src);
gst_object_unref (sink);
src = sink = NULL;
src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_SPUQ], "src");
if (src == NULL)
goto failed_spu_ghost;
src_templ = gst_static_pad_template_get (&subpicture_src_template);
dvdbin->subpicture_pad =
gst_ghost_pad_new_from_template ("subpicture", src, src_templ);
gst_object_unref (src_templ);
if (dvdbin->subpicture_pad == NULL)
goto failed_spu_ghost;
gst_pad_set_active (dvdbin->subpicture_pad, TRUE);
bctx = g_slice_new (RsnDvdBinPadBlockCtx);
bctx->dvdbin = gst_object_ref (dvdbin);
bctx->pad = gst_object_ref (dvdbin->subpicture_pad);
bctx->pad_block_id =
gst_pad_add_probe (src, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) dvdbin_pad_blocked_cb, bctx, (GDestroyNotify)
_pad_block_destroy_notify);
gst_object_unref (src);
src = NULL;
if (!try_create_piece (dvdbin, DVD_ELEM_AUD_SELECT, NULL,
RSN_TYPE_INPUT_SELECTOR, "audioselect", "Audio stream selector"))
return FALSE;
g_object_set (G_OBJECT (dvdbin->pieces[DVD_ELEM_AUD_SELECT]),
"sync-streams", FALSE, NULL);
if (!try_create_piece (dvdbin, DVD_ELEM_AUDDEC, NULL,
RSN_TYPE_AUDIODEC, "auddec", "audio decoder"))
return FALSE;
src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_AUD_SELECT], "src");
sink = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_AUDDEC], "sink");
if (src == NULL || sink == NULL)
goto failed_aud_connect;
if (GST_PAD_LINK_FAILED (gst_pad_link (src, sink)))
goto failed_aud_connect;
gst_object_unref (sink);
gst_object_unref (src);
src = sink = NULL;
/* ghost audio munge output pad onto bin */
src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_AUDDEC], "src");
if (src == NULL)
goto failed_aud_ghost;
src_templ = gst_static_pad_template_get (&audio_src_template);
dvdbin->audio_pad = gst_ghost_pad_new_from_template ("audio", src, src_templ);
gst_object_unref (src_templ);
if (dvdbin->audio_pad == NULL)
goto failed_aud_ghost;
gst_pad_set_active (dvdbin->audio_pad, TRUE);
bctx = g_slice_new (RsnDvdBinPadBlockCtx);
bctx->dvdbin = gst_object_ref (dvdbin);
bctx->pad = gst_object_ref (dvdbin->audio_pad);
bctx->pad_block_id =
gst_pad_add_probe (src, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) dvdbin_pad_blocked_cb, bctx, (GDestroyNotify)
_pad_block_destroy_notify);
gst_object_unref (src);
src = NULL;
if (dvdbin->video_added && (dvdbin->audio_added || dvdbin->audio_broken)
&& dvdbin->subpicture_added) {
rsn_dvdbin_no_more_pads (dvdbin);
}
return TRUE;
failed_connect:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not connect DVD source and demuxer elements"));
goto error_out;
failed_vidparse_connect:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not connect DVD video parser and video decoder"));
goto error_out;
failed_viddec_connect:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not connect DVD video decoder and aspect ratio adjuster"));
goto error_out;
failed_video_ghost:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not ghost video output pad"));
goto error_out;
failed_spuq_connect:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not connect DVD subpicture selector and buffer elements"));
goto error_out;
failed_spu_ghost:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not ghost SPU output pad"));
goto error_out;
failed_aud_connect:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not connect DVD audio decoder"));
goto error_out;
failed_aud_ghost:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Could not ghost audio output pad"));
goto error_out;
error_out:
if (src != NULL)
gst_object_unref (src);
if (sink != NULL)
gst_object_unref (sink);
return FALSE;
}
static void
remove_elements (RsnDvdBin * dvdbin)
{
gint i;
GList *tmp;
if (dvdbin->pieces[DVD_ELEM_MQUEUE] != NULL) {
for (tmp = dvdbin->mq_req_pads; tmp; tmp = g_list_next (tmp)) {
gst_element_release_request_pad (dvdbin->pieces[DVD_ELEM_MQUEUE],
GST_PAD (tmp->data));
}
}
g_list_free (dvdbin->mq_req_pads);
dvdbin->mq_req_pads = NULL;
for (i = 0; i < DVD_ELEM_LAST; i++) {
DVDBIN_LOCK (dvdbin);
if (dvdbin->pieces[i] != NULL) {
GstElement *piece = dvdbin->pieces[i];
dvdbin->pieces[i] = NULL;
DVDBIN_UNLOCK (dvdbin);
gst_element_set_state (piece, GST_STATE_NULL);
gst_bin_remove (GST_BIN (dvdbin), piece);
} else
DVDBIN_UNLOCK (dvdbin);
}
if (dvdbin->video_pad) {
if (dvdbin->video_added)
gst_element_remove_pad (GST_ELEMENT (dvdbin), dvdbin->video_pad);
else
gst_object_unref (dvdbin->video_pad);
}
if (dvdbin->audio_pad) {
if (dvdbin->audio_added)
gst_element_remove_pad (GST_ELEMENT (dvdbin), dvdbin->audio_pad);
else
gst_object_unref (dvdbin->audio_pad);
}
if (dvdbin->subpicture_pad) {
if (dvdbin->subpicture_added)
gst_element_remove_pad (GST_ELEMENT (dvdbin), dvdbin->subpicture_pad);
else
gst_object_unref (dvdbin->subpicture_pad);
}
dvdbin->video_added = dvdbin->audio_added = dvdbin->subpicture_added = FALSE;
dvdbin->audio_broken = FALSE;
dvdbin->video_pad = dvdbin->audio_pad = dvdbin->subpicture_pad = NULL;
dvdbin->did_no_more_pads = FALSE;
}
static GstPad *
connect_thru_mq (RsnDvdBin * dvdbin, GstPad * pad)
{
GstPad *mq_sink;
GstPad *mq_src;
gchar *tmp, *sinkname, *srcname;
/* Request a pad from multiqueue, then connect this one, then
* discover the corresponding output pad and return it */
mq_sink = gst_element_get_request_pad (dvdbin->pieces[DVD_ELEM_MQUEUE],
"sink_%u");
if (mq_sink == NULL)
return FALSE;
dvdbin->mq_req_pads = g_list_prepend (dvdbin->mq_req_pads, mq_sink);
if (gst_pad_link (pad, mq_sink) != GST_PAD_LINK_OK)
return FALSE;
sinkname = gst_pad_get_name (mq_sink);
tmp = sinkname + 5;
srcname = g_strdup_printf ("src_%s", tmp);
mq_src = gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_MQUEUE],
srcname);
g_free (sinkname);
g_free (srcname);
return mq_src;
}
static gboolean
can_sink_caps (GstElement * e, GstCaps * caps)
{
gboolean res = FALSE;
GstPad *sink = gst_element_get_static_pad (e, "sink");
if (sink) {
GstCaps *sink_caps = gst_pad_query_caps (sink, caps);
if (sink_caps) {
res = !gst_caps_is_empty (sink_caps);
gst_caps_unref (sink_caps);
}
gst_object_unref (sink);
}
return res;
}
static void
demux_pad_added (GstElement * element, GstPad * pad, RsnDvdBin * dvdbin)
{
gboolean skip_mq = FALSE;
GstPad *mq_pad = NULL;
GstPad *dest_pad = NULL;
GstCaps *caps;
GstStructure *s;
GST_DEBUG_OBJECT (dvdbin, "New pad: %" GST_PTR_FORMAT, pad);
caps = gst_pad_query_caps (pad, NULL);
if (caps == NULL) {
GST_WARNING_OBJECT (dvdbin, "NULL caps from pad %" GST_PTR_FORMAT, pad);
return;
}
if (!gst_caps_is_fixed (caps)) {
GST_WARNING_OBJECT (dvdbin, "Unfixed caps %" GST_PTR_FORMAT
" on pad %" GST_PTR_FORMAT, caps, pad);
gst_caps_unref (caps);
return;
}
GST_DEBUG_OBJECT (dvdbin,
"Pad %" GST_PTR_FORMAT " has caps: %" GST_PTR_FORMAT, pad, caps);
s = gst_caps_get_structure (caps, 0);
g_return_if_fail (s != NULL);
if (can_sink_caps (dvdbin->pieces[DVD_ELEM_VIDPARSE], caps)) {
GST_LOG_OBJECT (dvdbin, "Found video pad w/ caps %" GST_PTR_FORMAT, caps);
dest_pad =
gst_element_get_static_pad (dvdbin->pieces[DVD_ELEM_VIDPARSE], "sink");
} else if (g_str_equal (gst_structure_get_name (s), "subpicture/x-dvd")) {
GST_LOG_OBJECT (dvdbin, "Found subpicture pad w/ caps %" GST_PTR_FORMAT,
caps);
dest_pad =
gst_element_get_request_pad (dvdbin->pieces[DVD_ELEM_SPU_SELECT],
"sink_%u");
skip_mq = TRUE;
} else if (can_sink_caps (dvdbin->pieces[DVD_ELEM_AUDDEC], caps)) {
GST_LOG_OBJECT (dvdbin, "Found audio pad w/ caps %" GST_PTR_FORMAT, caps);
dest_pad =
gst_element_get_request_pad (dvdbin->pieces[DVD_ELEM_AUD_SELECT],
"sink_%u");
} else {
GstStructure *s;
GST_DEBUG_OBJECT (dvdbin, "Ignoring unusable pad w/ caps %" GST_PTR_FORMAT,
caps);
gst_element_post_message (GST_ELEMENT_CAST (dvdbin),
gst_missing_decoder_message_new (GST_ELEMENT_CAST (dvdbin), caps));
s = gst_caps_get_structure (caps, 0);
if (g_str_has_prefix ("video/", gst_structure_get_name (s))) {
GST_ELEMENT_ERROR (dvdbin, STREAM, CODEC_NOT_FOUND, (NULL),
("No MPEG video decoder found"));
} else {
GST_ELEMENT_WARNING (dvdbin, STREAM, CODEC_NOT_FOUND, (NULL),
("No audio decoder found"));
}
}
gst_caps_unref (caps);
if (dest_pad == NULL) {
GST_DEBUG_OBJECT (dvdbin, "Don't know how to handle pad. Ignoring");
return;
}
if (skip_mq) {
mq_pad = gst_object_ref (pad);
} else {
mq_pad = connect_thru_mq (dvdbin, pad);
if (mq_pad == NULL)
goto failed;
GST_DEBUG_OBJECT (dvdbin, "Linking new pad %" GST_PTR_FORMAT
" through multiqueue to %" GST_PTR_FORMAT, pad, dest_pad);
}
gst_pad_link (mq_pad, dest_pad);
gst_object_unref (mq_pad);
gst_object_unref (dest_pad);
return;
failed:
GST_ELEMENT_ERROR (dvdbin, CORE, FAILED, (NULL),
("Failed to handle new demuxer pad %s", GST_PAD_NAME (pad)));
if (mq_pad)
gst_object_unref (mq_pad);
if (dest_pad)
gst_object_unref (dest_pad);
return;
}
static void
demux_no_more_pads (GstElement * element, RsnDvdBin * dvdbin)
{
gboolean no_more_pads = FALSE;
guint n_audio_pads = 0;
GST_DEBUG_OBJECT (dvdbin, "Received no more pads from demuxer");
DVDBIN_PREROLL_LOCK (dvdbin);
g_object_get (dvdbin->pieces[DVD_ELEM_AUD_SELECT], "n-pads", &n_audio_pads,
NULL);
if (n_audio_pads == 0) {
no_more_pads = dvdbin->video_added && dvdbin->subpicture_added;
dvdbin->audio_broken = TRUE;
}
DVDBIN_PREROLL_UNLOCK (dvdbin);
if (no_more_pads) {
GST_DEBUG_OBJECT (dvdbin,
"Firing no more pads from demuxer no-more-pads cb");
rsn_dvdbin_no_more_pads (dvdbin);
}
}
static GstPadProbeReturn
dvdbin_pad_blocked_cb (GstPad * opad,
GstPadProbeInfo * info, RsnDvdBinPadBlockCtx * ctx)
{
RsnDvdBin *dvdbin;
GstPad *pad;
gboolean added_last_pad = FALSE;
gboolean added = FALSE;
guint pad_block_id = 0;
dvdbin = ctx->dvdbin;
pad = ctx->pad;
if (pad == dvdbin->subpicture_pad) {
GST_DEBUG_OBJECT (opad, "Pad block -> subpicture pad");
DVDBIN_PREROLL_LOCK (dvdbin);
added = dvdbin->subpicture_added;
dvdbin->subpicture_added = TRUE;
if (!added) {
gst_element_add_pad (GST_ELEMENT (dvdbin), dvdbin->subpicture_pad);
added_last_pad = ((dvdbin->audio_broken || dvdbin->audio_added)
&& dvdbin->video_added);
}
pad_block_id = ctx->pad_block_id;
ctx->pad_block_id = 0;
DVDBIN_PREROLL_UNLOCK (dvdbin);
if (pad_block_id)
gst_pad_remove_probe (opad, pad_block_id);
} else if (pad == dvdbin->audio_pad) {
GST_DEBUG_OBJECT (opad, "Pad block -> audio pad");
DVDBIN_PREROLL_LOCK (dvdbin);
added = dvdbin->audio_added;
dvdbin->audio_added = TRUE;
if (!added) {
gst_element_add_pad (GST_ELEMENT (dvdbin), dvdbin->audio_pad);
added_last_pad = (dvdbin->subpicture_added && dvdbin->video_added);
}
pad_block_id = ctx->pad_block_id;
ctx->pad_block_id = 0;
DVDBIN_PREROLL_UNLOCK (dvdbin);
if (pad_block_id)
gst_pad_remove_probe (opad, pad_block_id);
} else if (pad == dvdbin->video_pad) {
GST_DEBUG_OBJECT (opad, "Pad block -> video pad");
DVDBIN_PREROLL_LOCK (dvdbin);
added = dvdbin->video_added;
dvdbin->video_added = TRUE;
if (!added) {
gst_element_add_pad (GST_ELEMENT (dvdbin), dvdbin->video_pad);
added_last_pad = (dvdbin->subpicture_added && (dvdbin->audio_added
|| dvdbin->audio_broken));
}
pad_block_id = ctx->pad_block_id;
ctx->pad_block_id = 0;
DVDBIN_PREROLL_UNLOCK (dvdbin);
if (pad_block_id)
gst_pad_remove_probe (opad, pad_block_id);
}
if (added_last_pad) {
GST_DEBUG_OBJECT (dvdbin, "Firing no more pads from pad-blocked cb");
rsn_dvdbin_no_more_pads (dvdbin);
}
return GST_PAD_PROBE_OK;
}
static void
rsn_dvdbin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
RsnDvdBin *dvdbin = RESINDVDBIN (object);
switch (prop_id) {
case ARG_DEVICE:
DVDBIN_LOCK (dvdbin);
g_free (dvdbin->device);
if (g_value_get_string (value) == NULL)
dvdbin->device = g_strdup (DEFAULT_DEVICE);
else
dvdbin->device = g_value_dup_string (value);
if (dvdbin->pieces[DVD_ELEM_SOURCE]) {
g_object_set_property (G_OBJECT (dvdbin->pieces[DVD_ELEM_SOURCE]),
"device", value);
}
DVDBIN_UNLOCK (dvdbin);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
rsn_dvdbin_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
RsnDvdBin *dvdbin = RESINDVDBIN (object);
switch (prop_id) {
case ARG_DEVICE:
DVDBIN_LOCK (dvdbin);
if (dvdbin->device)
g_value_set_string (value, dvdbin->device);
else if (dvdbin->pieces[DVD_ELEM_SOURCE])
g_object_get_property (G_OBJECT (dvdbin->pieces[DVD_ELEM_SOURCE]),
"device", value);
else
g_value_set_string (value, DEFAULT_DEVICE);
DVDBIN_UNLOCK (dvdbin);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
rsn_dvdbin_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
RsnDvdBin *dvdbin = RESINDVDBIN (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!create_elements (dvdbin)) {
remove_elements (dvdbin);
return GST_STATE_CHANGE_FAILURE;
}
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
case GST_STATE_CHANGE_READY_TO_NULL:
remove_elements (dvdbin);
break;
default:
break;
}
return ret;
}
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