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Ported DVdec to 0.9.

Browse source 
Original commit message from CVS:
* configure.ac:
* ext/dv/Makefile.am:
* ext/dv/gstdvdec.c: (gst_dvdec_class_init), (gst_dvdec_init),
(gst_dvdec_get_src_query_types), (gst_dvdec_src_query),
(gst_dvdec_handle_sink_event), (gst_dvdec_handle_src_event),
(gst_dvdec_video_getcaps), (gst_dvdec_video_setcaps),
(gst_dvdec_decode_audio), (gst_dvdec_decode_video),
(gst_dvdec_decode_frame), (gst_dvdec_chain),
(gst_dvdec_change_state), (gst_dvdec_set_property),
(gst_dvdec_get_property), (plugin_init):
* ext/dv/gstdvdec.h:
* ext/esd/esdsink.c: (gst_esdsink_class_init):
Ported DVdec to 0.9.
Parent of esdsink is GstAudioSink.
This commit is contained in:
Wim Taymans 2005-07-07 17:03:47 +00:00
parent 16e4cd8b38
commit 1970ac0fc7
6 changed files with 399 additions and 347 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
ChangeLog
View file

@ -1,3 +1,20 @@
2005-07-07 Wim Taymans <wim@fluendo.com>
* configure.ac:
* ext/dv/Makefile.am:
* ext/dv/gstdvdec.c: (gst_dvdec_class_init), (gst_dvdec_init),
(gst_dvdec_get_src_query_types), (gst_dvdec_src_query),
(gst_dvdec_handle_sink_event), (gst_dvdec_handle_src_event),
(gst_dvdec_video_getcaps), (gst_dvdec_video_setcaps),
(gst_dvdec_decode_audio), (gst_dvdec_decode_video),
(gst_dvdec_decode_frame), (gst_dvdec_chain),
(gst_dvdec_change_state), (gst_dvdec_set_property),
(gst_dvdec_get_property), (plugin_init):
* ext/dv/gstdvdec.h:
* ext/esd/esdsink.c: (gst_esdsink_class_init):
Ported DVdec to 0.9.
Parent of esdsink is GstAudioSink.
2005-07-07 Wim Taymans <wim@fluendo.com>
* configure.ac:

9
configure.ac
View file

@ -379,6 +379,14 @@ GST_CHECK_FEATURE(LIBCACA, [libcaca], libcaca, [
AC_SUBST(LIBCACA_LIBS)
])
dnl *** libdv ***
translit(dnm, m, l) AM_CONDITIONAL(USE_LIBDV, true)
GST_CHECK_FEATURE(LIBDV, [libdv DV/video decoder], dvdec, [
PKG_CHECK_MODULES(LIBDV, libdv >= 0.100, HAVE_LIBDV="yes", HAVE_LIBDV="no")
AC_SUBST(LIBDV_CFLAGS)
AC_SUBST(LIBDV_LIBS)
])
dnl *** shout2 ***
translit(dnm, m, l) AM_CONDITIONAL(USE_SHOUT2, true)
GST_CHECK_FEATURE(SHOUT2, [shout2 plug-in], shout2send, [
@ -531,6 +539,7 @@ gst-libs/gst/Makefile
sys/Makefile
ext/Makefile
ext/aalib/Makefile
ext/dv/Makefile
ext/libcaca/Makefile
ext/mad/Makefile
ext/raw1394/Makefile

4
ext/dv/Makefile.am
View file

@ -3,8 +3,8 @@ plugin_LTLIBRARIES = libgstdvdec.la
libgstdvdec_la_SOURCES = gstdvdec.c
libgstdvdec_la_CFLAGS = $(GST_CFLAGS) $(LIBDV_CFLAGS)
libgstdvdec_la_LIBADD = $(LIBDV_LIBS)
libgstdvdec_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstdvdec_la_LIBADD = $(LIBDV_LIBS) $(GST_BASE_LIBS)
libgstdvdec_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(GST_BASE_LDFLAGS)
noinst_HEADERS = gstdvdec.h

666
ext/dv/gstdvdec.c
View file

@ -1,5 +1,6 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* <2005> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -61,8 +62,8 @@
* information. This element outputs the 720x576 or 720x480 video that it
* recieves, noting the proper aspect ratio. This should not be a problem for
* windowed applications, which can change size to fit the video. Applications
* with fixed size requirements should decide whether to crop or pad. If you
* decide to crop, the videocrop element might be useful to you.
* with fixed size requirements should decide whether to crop or pad which
* an element such as videobox can do.
*/
#define NTSC_HEIGHT 480
@ -90,7 +91,7 @@ static GstElementDetails dvdec_details =
GST_ELEMENT_DETAILS ("DV (smpte314) decoder plugin",
"Codec/Decoder/Video",
"Uses libdv to decode DV video (libdv.sourceforge.net)",
"Erik Walthinsen <omega@cse.ogi.edu>\n" "Wim Taymans <wim.taymans@tvd.be>");
"Erik Walthinsen <omega@cse.ogi.edu>," "Wim Taymans <wim@fluendo.com>");
/* These are the signals that this element can fire. They are zero-
@ -153,9 +154,6 @@ static GstStaticPadTemplate video_src_temp = GST_STATIC_PAD_TEMPLATE ("video",
G_STRINGIFY (NTSC_NORMAL_PAR_X) "/" G_STRINGIFY (NTSC_NORMAL_PAR_Y) ","
G_STRINGIFY (NTSC_WIDE_PAR_X) "/" G_STRINGIFY (NTSC_WIDE_PAR_Y) "},"
"framerate = (double) [ 1.0, 60.0 ];"
//"framerate = (double) { "
//G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
//" }; "
"video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
@ -173,9 +171,6 @@ static GstStaticPadTemplate video_src_temp = GST_STATIC_PAD_TEMPLATE ("video",
G_STRINGIFY (NTSC_NORMAL_PAR_X) "/" G_STRINGIFY (NTSC_NORMAL_PAR_Y) ","
G_STRINGIFY (NTSC_WIDE_PAR_X) "/" G_STRINGIFY (NTSC_WIDE_PAR_Y) "},"
"framerate = (double) [ 1.0, 60.0 ];"
//"framerate = (double) { "
//G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
//" }; "
"video/x-raw-rgb, "
"bpp = (int) 24, "
"depth = (int) 24, "
@ -192,11 +187,7 @@ static GstStaticPadTemplate video_src_temp = GST_STATIC_PAD_TEMPLATE ("video",
G_STRINGIFY (PAL_WIDE_PAR_X) "/" G_STRINGIFY (PAL_WIDE_PAR_Y) ","
G_STRINGIFY (NTSC_NORMAL_PAR_X) "/" G_STRINGIFY (NTSC_NORMAL_PAR_Y) ","
G_STRINGIFY (NTSC_WIDE_PAR_X) "/" G_STRINGIFY (NTSC_WIDE_PAR_Y) "},"
"framerate = (double) [ 1.0, 60.0 ]"
//"framerate = (double) { "
//G_STRINGIFY (PAL_FRAMERATE) ", " G_STRINGIFY (NTSC_FRAMERATE)
//" }"
)
"framerate = (double) [ 1.0, 60.0 ]")
);
static GstStaticPadTemplate audio_src_temp = GST_STATIC_PAD_TEMPLATE ("audio",
@ -240,22 +231,27 @@ static void gst_dvdec_class_init (GstDVDecClass * klass);
static void gst_dvdec_init (GstDVDec * dvdec);
static const GstQueryType *gst_dvdec_get_src_query_types (GstPad * pad);
static gboolean gst_dvdec_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value);
static gboolean gst_dvdec_src_query (GstPad * pad, GstQuery * query);
#if 0
static const GstFormat *gst_dvdec_get_formats (GstPad * pad);
#endif
#if 0
static gboolean gst_dvdec_sink_convert (GstPad * pad, GstFormat src_format,
gint64 src_value, GstFormat * dest_format, gint64 * dest_value);
static gboolean gst_dvdec_src_convert (GstPad * pad, GstFormat src_format,
gint64 src_value, GstFormat * dest_format, gint64 * dest_value);
#endif
static GstPadLinkReturn gst_dvdec_video_link (GstPad * pad,
const GstCaps * caps);
static gboolean gst_dvdec_video_setcaps (GstPad * pad, GstCaps * caps);
static GstCaps *gst_dvdec_video_getcaps (GstPad * pad);
#if 0
static const GstEventMask *gst_dvdec_get_event_masks (GstPad * pad);
#endif
static gboolean gst_dvdec_handle_src_event (GstPad * pad, GstEvent * event);
static void gst_dvdec_loop (GstElement * element);
static GstFlowReturn gst_dvdec_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_dvdec_handle_sink_event (GstPad * pad, GstEvent * event);
static GstElementStateReturn gst_dvdec_change_state (GstElement * element);
@ -342,6 +338,9 @@ gst_dvdec_class_init (GstDVDecClass * klass)
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_dvdec_set_property;
gobject_class->get_property = gst_dvdec_get_property;
/* The parent class is needed for class method overrides. */
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
@ -358,9 +357,6 @@ gst_dvdec_class_init (GstDVDecClass * klass)
g_param_spec_int ("drop-factor", "Drop Factor", "Only decode Nth frame",
1, G_MAXINT, DV_DEFAULT_DECODE_NTH, G_PARAM_READWRITE));
gobject_class->set_property = gst_dvdec_set_property;
gobject_class->get_property = gst_dvdec_get_property;
gstelement_class->change_state = gst_dvdec_change_state;
/* table initialization, only do once */
@ -375,16 +371,18 @@ gst_dvdec_init (GstDVDec * dvdec)
{
gint i;
dvdec->found_header = FALSE;
dvdec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_temp),
"sink");
gst_pad_set_query_function (dvdec->sinkpad, NULL);
gst_pad_set_chain_function (dvdec->sinkpad, gst_dvdec_chain);
gst_pad_set_event_function (dvdec->sinkpad, gst_dvdec_handle_sink_event);
#if 0
gst_pad_set_convert_function (dvdec->sinkpad,
GST_DEBUG_FUNCPTR (gst_dvdec_sink_convert));
gst_pad_set_formats_function (dvdec->sinkpad,
GST_DEBUG_FUNCPTR (gst_dvdec_get_formats));
#endif
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->sinkpad);
dvdec->videosrcpad =
@ -396,16 +394,18 @@ gst_dvdec_init (GstDVDec * dvdec)
GST_DEBUG_FUNCPTR (gst_dvdec_get_src_query_types));
gst_pad_set_event_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_handle_src_event));
#if 0
gst_pad_set_event_mask_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_get_event_masks));
gst_pad_set_convert_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_src_convert));
gst_pad_set_formats_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_get_formats));
#endif
gst_pad_set_getcaps_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_video_getcaps));
gst_pad_set_link_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_video_link));
gst_pad_set_setcaps_function (dvdec->videosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_video_setcaps));
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->videosrcpad);
dvdec->audiosrcpad =
@ -415,6 +415,7 @@ gst_dvdec_init (GstDVDec * dvdec)
GST_DEBUG_FUNCPTR (gst_dvdec_src_query));
gst_pad_set_query_type_function (dvdec->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_get_src_query_types));
#if 0
gst_pad_set_event_function (dvdec->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_handle_src_event));
gst_pad_set_event_mask_function (dvdec->audiosrcpad,
@ -423,14 +424,17 @@ gst_dvdec_init (GstDVDec * dvdec)
GST_DEBUG_FUNCPTR (gst_dvdec_src_convert));
gst_pad_set_formats_function (dvdec->audiosrcpad,
GST_DEBUG_FUNCPTR (gst_dvdec_get_formats));
gst_pad_use_explicit_caps (dvdec->audiosrcpad);
#endif
/* once we set caps, this is the only thing we can do */
gst_pad_use_fixed_caps (dvdec->audiosrcpad);
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->audiosrcpad);
gst_element_set_loop_function (GST_ELEMENT (dvdec), gst_dvdec_loop);
dvdec->adapter = gst_adapter_new ();
dvdec->bs = NULL;
dvdec->length = 0;
dvdec->next_ts = 0LL;
dvdec->timestamp = 0LL;
dvdec->end_position = -1LL;
dvdec->need_discont = FALSE;
dvdec->new_media = FALSE;
@ -452,6 +456,7 @@ gst_dvdec_init (GstDVDec * dvdec)
}
}
#if 0
static const GstFormat *
gst_dvdec_get_formats (GstPad * pad)
{
@ -470,7 +475,9 @@ gst_dvdec_get_formats (GstPad * pad)
return (GST_PAD_IS_SRC (pad) ? src_formats : sink_formats);
}
#endif
#if 0
static gboolean
gst_dvdec_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
GstFormat * dest_format, gint64 * dest_value)
@ -590,12 +597,12 @@ gst_dvdec_sink_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
}
return res;
}
#endif
static const GstQueryType *
gst_dvdec_get_src_query_types (GstPad * pad)
{
static const GstQueryType src_query_types[] = {
GST_QUERY_TOTAL,
GST_QUERY_POSITION,
0
};
@ -604,15 +611,15 @@ gst_dvdec_get_src_query_types (GstPad * pad)
}
static gboolean
gst_dvdec_src_query (GstPad * pad, GstQueryType type,
GstFormat * format, gint64 * value)
gst_dvdec_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstDVDec *dvdec;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
switch (type) {
switch (GST_QUERY_TYPE (query)) {
#if 0
case GST_QUERY_TOTAL:
switch (*format) {
default:
@ -636,7 +643,9 @@ gst_dvdec_src_query (GstPad * pad, GstQueryType type,
}
}
break;
#endif
case GST_QUERY_POSITION:
#if 0
switch (*format) {
default:
res =
@ -644,6 +653,7 @@ gst_dvdec_src_query (GstPad * pad, GstQueryType type,
value);
break;
}
#endif
break;
default:
res = FALSE;
@ -652,83 +662,32 @@ gst_dvdec_src_query (GstPad * pad, GstQueryType type,
return res;
}
static const GstEventMask *
gst_dvdec_get_event_masks (GstPad * pad)
{
static const GstEventMask src_event_masks[] = {
{GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH},
{0,}
};
static const GstEventMask sink_event_masks[] = {
{GST_EVENT_EOS, 0},
{GST_EVENT_DISCONTINUOUS, 0},
{GST_EVENT_FLUSH, 0},
{0,}
};
return (GST_PAD_IS_SRC (pad) ? src_event_masks : sink_event_masks);
}
static gboolean
gst_dvdec_handle_sink_event (GstDVDec * dvdec)
gst_dvdec_handle_sink_event (GstPad * pad, GstEvent * event)
{
guint32 remaining;
GstEvent *event;
GstEventType type;
GstDVDec *dvdec = GST_DVDEC (GST_PAD_PARENT (pad));
gboolean res = TRUE;
gst_bytestream_get_status (dvdec->bs, &remaining, &event);
type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
switch (type) {
case GST_EVENT_FLUSH:
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
case GST_EVENT_FILLER:
{
/* Forward the event to output sinks */
if (GST_PAD_IS_LINKED (dvdec->videosrcpad)) {
gst_event_ref (event);
gst_pad_push (dvdec->videosrcpad, GST_DATA (event));
}
if (GST_PAD_IS_LINKED (dvdec->audiosrcpad)) {
gst_event_ref (event);
gst_pad_push (dvdec->audiosrcpad, GST_DATA (event));
}
if (type == GST_EVENT_EOS) {
gst_element_set_eos (GST_ELEMENT (dvdec));
}
GST_STREAM_LOCK (pad);
gst_event_ref (event);
gst_pad_push_event (dvdec->videosrcpad, event);
gst_pad_push_event (dvdec->audiosrcpad, event);
GST_STREAM_UNLOCK (pad);
break;
}
case GST_EVENT_DISCONTINUOUS:
{
gint i;
gboolean found = FALSE;
GstFormat format;
format = GST_FORMAT_TIME;
/* try to get a timestamp from the discont formats */
for (i = 0; i < GST_EVENT_DISCONT_OFFSET_LEN (event); i++) {
if (gst_pad_convert (dvdec->sinkpad,
GST_EVENT_DISCONT_OFFSET (event, i).format,
GST_EVENT_DISCONT_OFFSET (event, i).value,
&format, &dvdec->next_ts)) {
found = TRUE;
break;
}
}
/* assume 0 then */
if (!found) {
dvdec->next_ts = 0LL;
}
dvdec->need_discont = TRUE;
GST_STREAM_LOCK (pad);
res = gst_pad_event_default (dvdec->sinkpad, event);
GST_STREAM_UNLOCK (pad);
break;
}
default:
return gst_pad_event_default (dvdec->sinkpad, event);
res = gst_pad_event_default (dvdec->sinkpad, event);
break;
}
gst_event_unref (event);
return TRUE;
return res;
}
static gboolean
@ -740,6 +699,7 @@ gst_dvdec_handle_src_event (GstPad * pad, GstEvent * event)
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
#if 0
case GST_EVENT_SEEK_SEGMENT:
{
gint64 position;
@ -758,6 +718,7 @@ gst_dvdec_handle_src_event (GstPad * pad, GstEvent * event)
dvdec->end_position = position;
dvdec->loop = GST_EVENT_SEEK_TYPE (event) & GST_SEEK_FLAG_SEGMENT_LOOP;
}
#endif
case GST_EVENT_SEEK:
{
gint64 position;
@ -765,28 +726,29 @@ gst_dvdec_handle_src_event (GstPad * pad, GstEvent * event)
/* first bring the format to time */
format = GST_FORMAT_TIME;
if (!gst_pad_convert (pad,
if (!gst_pad_query_convert (pad,
GST_EVENT_SEEK_FORMAT (event),
GST_EVENT_SEEK_OFFSET (event), &format, &position)) {
/* could not convert seek format to time offset */
res = FALSE;
break;
}
dvdec->next_ts = position;
dvdec->timestamp = position;
/* then try to figure out the byteoffset for this time */
format = GST_FORMAT_BYTES;
if (!gst_pad_convert (dvdec->sinkpad, GST_FORMAT_TIME, position,
if (!gst_pad_query_convert (dvdec->sinkpad, GST_FORMAT_TIME, position,
&format, &position)) {
/* could not convert seek format to byte offset */
res = FALSE;
break;
}
/* seek to offset */
#if 0
if (!gst_bytestream_seek (dvdec->bs, position, GST_SEEK_METHOD_SET)) {
res = FALSE;
}
if (GST_EVENT_TYPE (event) != GST_EVENT_SEEK_SEGMENT)
dvdec->end_position = -1;
#endif
dvdec->end_position = -1;
break;
}
default:
@ -805,6 +767,7 @@ gst_dvdec_video_getcaps (GstPad * pad)
GstPadTemplate *src_pad_template;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
src_pad_template = gst_static_pad_template_get (&video_src_temp);
caps = gst_caps_copy (gst_pad_template_get_caps (src_pad_template));
@ -840,281 +803,345 @@ gst_dvdec_video_getcaps (GstPad * pad)
}
}
gst_object_unref (dvdec);
return caps;
}
static GstPadLinkReturn
gst_dvdec_video_link (GstPad * pad, const GstCaps * caps)
static gboolean
gst_dvdec_video_setcaps (GstPad * pad, GstCaps * caps)
{
GstDVDec *dvdec;
GstStructure *structure;
guint32 fourcc;
gint height;
gdouble framerate;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
/* if we did not find a header yet, return delayed */
if (!dvdec->found_header) {
return GST_PAD_LINK_DELAYED;
}
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "height", &height) ||
!gst_structure_get_double (structure, "framerate", &framerate))
return GST_PAD_LINK_REFUSED;
goto not_supported;
/* allow a margin of error for the framerate caused by float rounding errors */
if ((height != dvdec->height) ||
(fabs (framerate - (dvdec->framerate / dvdec->drop_factor)) > 0.00000001))
return GST_PAD_LINK_REFUSED;
goto not_supported;
if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") == 0) {
gint bpp;
GST_DEBUG ("got rgb format");
gst_structure_get_int (structure, "bpp", &bpp);
if (bpp == 24) {
dvdec->space = e_dv_color_rgb;
dvdec->bpp = 3;
GST_DEBUG ("configured rgb24");
} else {
dvdec->space = e_dv_color_bgr0;
dvdec->bpp = 4;
GST_DEBUG ("configured bgr32");
}
} else {
guint32 fourcc;
if (!gst_structure_get_fourcc (structure, "format", &fourcc))
return GST_PAD_LINK_REFUSED;
goto not_supported;
if (fourcc != GST_STR_FOURCC ("YUY2"))
goto not_supported;
dvdec->space = e_dv_color_yuv;
dvdec->bpp = 2;
GST_DEBUG ("configured YUY2");
}
return GST_PAD_LINK_OK;
}
gst_object_unref (dvdec);
static void
gst_dvdec_push (GstDVDec * dvdec, GstBuffer * outbuf, GstPad * pad,
GstClockTime ts)
{
if ((dvdec->need_discont) || (dvdec->new_media)) {
GstEvent *discont;
return TRUE;
discont = gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME, ts, NULL);
GST_EVENT_DISCONT_NEW_MEDIA (discont) = dvdec->new_media;
gst_pad_push (pad, GST_DATA (discont));
}
gst_pad_push (pad, GST_DATA (outbuf));
if ((dvdec->end_position != -1) && (dvdec->next_ts >= dvdec->end_position)) {
if (dvdec->loop)
gst_pad_push (pad, GST_DATA (gst_event_new (GST_EVENT_SEGMENT_DONE)));
else
gst_pad_push (pad, GST_DATA (gst_event_new (GST_EVENT_EOS)));
not_supported:
{
GST_DEBUG ("unsupported format");
gst_object_unref (dvdec);
return FALSE;
}
}
static void
gst_dvdec_loop (GstElement * element)
static GstFlowReturn
gst_dvdec_decode_audio (GstDVDec * dvdec, const guint8 * data)
{
GstDVDec *dvdec;
GstBuffer *buf, *outbuf;
guint8 *inframe;
gint num_samples;
gint frequency, channels;
frequency = dv_get_frequency (dvdec->decoder);
channels = dv_get_num_channels (dvdec->decoder);
/* check if format changed */
if ((frequency != dvdec->frequency) || (channels != dvdec->channels)) {
GstCaps *caps;
dvdec->frequency = frequency;
dvdec->channels = channels;
/* and set new caps */
caps = gst_caps_new_simple ("audio/x-raw-int",
"rate", G_TYPE_INT, frequency,
"depth", G_TYPE_INT, 16,
"width", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"channels", G_TYPE_INT, channels,
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL);
gst_pad_set_caps (dvdec->audiosrcpad, caps);
gst_caps_unref (caps);
}
dv_decode_full_audio (dvdec->decoder, data, dvdec->audio_buffers);
if ((num_samples = dv_get_num_samples (dvdec->decoder)) > 0) {
gint16 *a_ptr;
gint i, j;
GstBuffer *outbuf;
outbuf = gst_buffer_new_and_alloc (num_samples *
sizeof (gint16) * dvdec->channels);
a_ptr = (gint16 *) GST_BUFFER_DATA (outbuf);
for (i = 0; i < num_samples; i++) {
for (j = 0; j < dvdec->channels; j++) {
*(a_ptr++) = dvdec->audio_buffers[j][i];
}
}
GST_BUFFER_TIMESTAMP (outbuf) = dvdec->timestamp;
GST_BUFFER_DURATION (outbuf) = dvdec->duration;
GST_BUFFER_OFFSET (outbuf) = dvdec->audio_offset;
dvdec->audio_offset += num_samples;
GST_BUFFER_OFFSET_END (outbuf) = dvdec->audio_offset;
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (dvdec->audiosrcpad));
gst_pad_push (dvdec->audiosrcpad, outbuf);
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_dvdec_decode_video (GstDVDec * dvdec, const guint8 * data)
{
guint8 *outframe;
guint8 *outframe_ptrs[3];
gint outframe_pitches[3];
gdouble framerate;
gint height;
guint32 length, got_bytes;
GstClockTime ts, duration;
gdouble fps;
gboolean wide;
GstBuffer *outbuf;
dvdec = GST_DVDEC (element);
/*
* Apparently dv_parse_header can read from the body of the frame
* too, so it needs more than header_size bytes. Wacky!
*/
if (dvdec->found_header)
length = (dvdec->PAL ? PAL_BUFFER : NTSC_BUFFER);
else
length = NTSC_BUFFER;
/* first read enough bytes to parse the header */
got_bytes = gst_bytestream_peek_bytes (dvdec->bs, &inframe, length);
if (got_bytes < length) {
gst_dvdec_handle_sink_event (dvdec);
return;
}
if (dv_parse_header (dvdec->decoder, inframe) < 0) {
GST_ELEMENT_ERROR (dvdec, STREAM, DECODE, (NULL), (NULL));
return;
}
/* after parsing the header we know the length of the data */
dvdec->PAL = dv_system_50_fields (dvdec->decoder);
dvdec->found_header = TRUE;
fps = (dvdec->PAL ? PAL_FRAMERATE : NTSC_FRAMERATE);
/* get params */
framerate = (dvdec->PAL ? PAL_FRAMERATE : NTSC_FRAMERATE);
height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
length = (dvdec->PAL ? PAL_BUFFER : NTSC_BUFFER);
wide = dv_format_wide (dvdec->decoder);
if (length != dvdec->length) {
dvdec->length = length;
gst_bytestream_size_hint (dvdec->bs, length);
}
/* see if anything changed */
if ((dvdec->framerate != framerate) || (dvdec->height != height)
|| dvdec->wide != wide) {
GstCaps *caps;
gint par_x, par_y;
/* then read the read data */
got_bytes = gst_bytestream_read (dvdec->bs, &buf, length);
if (got_bytes < length) {
gst_dvdec_handle_sink_event (dvdec);
return;
}
ts = dvdec->next_ts;
dvdec->next_ts += GST_SECOND / fps;
duration = dvdec->next_ts - ts;
dv_parse_packs (dvdec->decoder, GST_BUFFER_DATA (buf));
if (dv_is_new_recording (dvdec->decoder, GST_BUFFER_DATA (buf)))
dvdec->new_media = TRUE;
if (GST_PAD_IS_LINKED (dvdec->audiosrcpad)) {
gint num_samples;
dv_decode_full_audio (dvdec->decoder, GST_BUFFER_DATA (buf),
dvdec->audio_buffers);
if ((dv_get_frequency (dvdec->decoder) != dvdec->frequency) ||
(dv_get_num_channels (dvdec->decoder) != dvdec->channels)) {
if (!gst_pad_set_explicit_caps (dvdec->audiosrcpad,
gst_caps_new_simple ("audio/x-raw-int",
"rate", G_TYPE_INT, dv_get_frequency (dvdec->decoder),
"depth", G_TYPE_INT, 16,
"width", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"channels", G_TYPE_INT, dv_get_num_channels (dvdec->decoder),
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL))) {
gst_buffer_unref (buf);
GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL),
("Failed to negotiate audio parameters for the DV audio stream"));
return;
}
dvdec->frequency = dv_get_frequency (dvdec->decoder);
dvdec->channels = dv_get_num_channels (dvdec->decoder);
}
num_samples = dv_get_num_samples (dvdec->decoder);
if (num_samples) {
gint16 *a_ptr;
gint i, j;
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = dv_get_num_samples (dvdec->decoder) *
sizeof (gint16) * dv_get_num_channels (dvdec->decoder);
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
a_ptr = (gint16 *) GST_BUFFER_DATA (outbuf);
for (i = 0; i < num_samples; i++) {
for (j = 0; j < dv_get_num_channels (dvdec->decoder); j++) {
*(a_ptr++) = dvdec->audio_buffers[j][i];
}
}
GST_BUFFER_TIMESTAMP (outbuf) = ts;
GST_BUFFER_DURATION (outbuf) = duration;
GST_BUFFER_OFFSET (outbuf) = dvdec->audio_offset;
dvdec->audio_offset += num_samples;
GST_BUFFER_OFFSET_END (outbuf) = dvdec->audio_offset;
gst_dvdec_push (dvdec, outbuf, dvdec->audiosrcpad, ts);
}
} else {
dvdec->frequency = dv_get_frequency (dvdec->decoder);
dvdec->channels = dv_get_num_channels (dvdec->decoder);
}
if (GST_PAD_IS_LINKED (dvdec->videosrcpad)) {
guint8 *outframe;
guint8 *outframe_ptrs[3];
gint outframe_pitches[3];
dvdec->framecount++;
if (dvdec->framecount < dvdec->drop_factor) {
/* don't decode */
goto end;
}
dvdec->framecount = 0;
if ((dvdec->framerate != fps) || (dvdec->height != height)
|| dvdec->wide != wide) {
dvdec->height = height;
dvdec->framerate = fps;
dvdec->wide = wide;
if (GST_PAD_LINK_FAILED (gst_pad_renegotiate (dvdec->videosrcpad))) {
GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
}
outbuf = gst_buffer_new_and_alloc ((720 * height) * dvdec->bpp);
outframe = GST_BUFFER_DATA (outbuf);
outframe_ptrs[0] = outframe;
outframe_pitches[0] = 720 * dvdec->bpp;
/* the rest only matters for YUY2 */
if (dvdec->bpp < 3) {
outframe_ptrs[1] = outframe_ptrs[0] + 720 * height;
outframe_ptrs[2] = outframe_ptrs[1] + 360 * height;
outframe_pitches[1] = height / 2;
outframe_pitches[2] = outframe_pitches[1];
}
dv_decode_full_frame (dvdec->decoder, GST_BUFFER_DATA (buf),
dvdec->space, outframe_ptrs, outframe_pitches);
GST_BUFFER_TIMESTAMP (outbuf) = ts;
GST_BUFFER_DURATION (outbuf) = duration * dvdec->drop_factor;
gst_dvdec_push (dvdec, outbuf, dvdec->videosrcpad, ts);
} else {
dvdec->framerate = framerate;
dvdec->height = height;
dvdec->framerate = fps;
dvdec->wide = wide;
if (dvdec->PAL) {
if (wide) {
par_x = PAL_WIDE_PAR_X;
par_y = PAL_WIDE_PAR_Y;
} else {
par_x = PAL_NORMAL_PAR_X;
par_y = PAL_NORMAL_PAR_Y;
}
} else {
if (wide) {
par_x = NTSC_WIDE_PAR_X;
par_y = NTSC_WIDE_PAR_Y;
} else {
par_x = NTSC_NORMAL_PAR_X;
par_y = NTSC_NORMAL_PAR_Y;
}
}
/* and set new caps, this will be used as suggestion in alloc
* function. */
caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, GST_STR_FOURCC ("YUY2"),
"width", G_TYPE_INT, 720,
"height", G_TYPE_INT, height,
"framerate", G_TYPE_DOUBLE, framerate,
"pixel-aspect-ratio", GST_TYPE_FRACTION, par_x, par_y, NULL);
gst_pad_set_caps (dvdec->videosrcpad, caps);
gst_caps_unref (caps);
}
end:
if ((dvdec->end_position != -1) &&
(dvdec->next_ts >= dvdec->end_position) && !dvdec->loop) {
gst_element_set_eos (GST_ELEMENT (dvdec));
/* check if we can skip this frame */
dvdec->framecount++;
if (dvdec->framecount < dvdec->drop_factor)
goto skip;
dvdec->framecount = 0;
if ((gst_pad_alloc_buffer (dvdec->videosrcpad, 0, (720 * height) * dvdec->bpp,
GST_PAD_CAPS (dvdec->videosrcpad), &outbuf)) != GST_FLOW_OK)
goto no_buffer;
outframe = GST_BUFFER_DATA (outbuf);
outframe_ptrs[0] = outframe;
outframe_pitches[0] = 720 * dvdec->bpp;
/* the rest only matters for YUY2 */
if (dvdec->bpp < 3) {
outframe_ptrs[1] = outframe_ptrs[0] + 720 * height;
outframe_ptrs[2] = outframe_ptrs[1] + 360 * height;
outframe_pitches[1] = height / 2;
outframe_pitches[2] = outframe_pitches[1];
}
dvdec->need_discont = FALSE;
dvdec->new_media = FALSE;
dv_decode_full_frame (dvdec->decoder, data,
dvdec->space, outframe_ptrs, outframe_pitches);
gst_buffer_unref (buf);
GST_BUFFER_TIMESTAMP (outbuf) = dvdec->timestamp;
GST_BUFFER_OFFSET (outbuf) = dvdec->video_offset;
GST_BUFFER_OFFSET_END (outbuf) = dvdec->video_offset + 1;
GST_BUFFER_DURATION (outbuf) = dvdec->duration * dvdec->drop_factor;
gst_pad_push (dvdec->videosrcpad, outbuf);
skip:
dvdec->video_offset++;
return GST_FLOW_OK;
/* ERRORS */
no_buffer:
{
return GST_FLOW_WRONG_STATE;
}
}
static GstFlowReturn
gst_dvdec_decode_frame (GstDVDec * dvdec, const guint8 * data)
{
GstClockTime next_ts;
next_ts = dvdec->timestamp + GST_SECOND / dvdec->framerate;
dvdec->duration = next_ts - dvdec->timestamp;
dv_parse_packs (dvdec->decoder, data);
if (dv_is_new_recording (dvdec->decoder, data))
dvdec->new_media = TRUE;
gst_dvdec_decode_audio (dvdec, data);
gst_dvdec_decode_video (dvdec, data);
dvdec->timestamp = next_ts;
return GST_FLOW_OK;
}
/* streaming operation:
*
* accumulate data until we have a frame, then decode.
*/
static GstFlowReturn
gst_dvdec_chain (GstPad * pad, GstBuffer * buffer)
{
GstDVDec *dvdec;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
gst_adapter_push (dvdec->adapter, buffer);
/* Apparently dv_parse_header can read from the body of the frame
* too, so it needs more than header_size bytes. Wacky!
*/
if (dvdec->frame_len == -1) {
/* if we don't know the length of a frame, we assume it is
* the NTSC_BUFFER length, as this is enough to figure out
* if this is PAL or NTSC */
dvdec->frame_len = NTSC_BUFFER;
}
while (gst_adapter_available (dvdec->adapter) >= dvdec->frame_len) {
const guint8 *data;
gint length;
/* get the accumulated bytes */
data = gst_adapter_peek (dvdec->adapter, dvdec->frame_len);
/* parse header to know the length and other params */
if (dv_parse_header (dvdec->decoder, data) < 0)
goto parse_header_error;
dvdec->found_header = TRUE;
/* after parsing the header we know the length of the data */
dvdec->PAL = dv_system_50_fields (dvdec->decoder);
dvdec->frame_len = (dvdec->PAL ? PAL_BUFFER : NTSC_BUFFER);
length = dvdec->frame_len;
/* if we still have enough for a frame, start decoding */
if (gst_adapter_available (dvdec->adapter) >= length) {
data = gst_adapter_peek (dvdec->adapter, length);
/* and decode the data */
gst_dvdec_decode_frame (dvdec, data);
gst_adapter_flush (dvdec->adapter, length);
}
}
gst_object_unref (dvdec);
return GST_FLOW_OK;
/* ERRORS */
parse_header_error:
{
GST_ELEMENT_ERROR (dvdec, STREAM, DECODE,
("Error parsing DV header"), ("Error parsing DV header"));
gst_object_unref (dvdec);
return GST_FLOW_ERROR;
}
}
static GstElementStateReturn
gst_dvdec_change_state (GstElement * element)
{
GstDVDec *dvdec = GST_DVDEC (element);
GstElementStateReturn ret;
gint transition;
switch (GST_STATE_TRANSITION (element)) {
transition = GST_STATE_TRANSITION (element);
switch (transition) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
dvdec->bs = gst_bytestream_new (dvdec->sinkpad);
dvdec->decoder =
dv_decoder_new (0, dvdec->clamp_luma, dvdec->clamp_chroma);
dvdec->decoder->quality = qualities[dvdec->quality];
dvdec->audio_offset = 0;
dvdec->video_offset = 0;
dvdec->framecount = 0;
dvdec->found_header = FALSE;
dvdec->frame_len = -1;
/*
* Enable this function call when libdv2 0.100 or higher is more
* common
@ -1123,35 +1150,34 @@ gst_dvdec_change_state (GstElement * element)
break;
case GST_STATE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = parent_class->change_state (element);
switch (transition) {
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
gst_adapter_clear (dvdec->adapter);
dv_decoder_free (dvdec->decoder);
dvdec->decoder = NULL;
dvdec->found_header = FALSE;
gst_bytestream_destroy (dvdec->bs);
dvdec->bs = NULL;
break;
case GST_STATE_READY_TO_NULL:
break;
default:
break;
}
return parent_class->change_state (element);
return ret;
}
/* Arguments are part of the Gtk+ object system, and these functions
* enable the element to respond to various arguments.
*/
static void
gst_dvdec_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstDVDec *dvdec;
g_return_if_fail (GST_IS_DVDEC (object));
/* Get a pointer of the right type. */
dvdec = GST_DVDEC (object);
@ -1184,7 +1210,6 @@ gst_dvdec_get_property (GObject * object, guint prop_id, GValue * value,
{
GstDVDec *dvdec;
g_return_if_fail (GST_IS_DVDEC (object));
dvdec = GST_DVDEC (object);
switch (prop_id) {
@ -1212,9 +1237,6 @@ gst_dvdec_get_property (GObject * object, guint prop_id, GValue * value,
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_library_load ("gstbytestream"))
return FALSE;
if (!gst_element_register (plugin, "dvdec", GST_RANK_PRIMARY,
gst_dvdec_get_type ()))
return FALSE;

48
ext/dv/gstdvdec.h
View file

@ -23,14 +23,10 @@
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
G_BEGIN_DECLS
#include <libdv/dv.h>
#include <gst/bytestream/bytestream.h>
#include <gst/base/gstadapter.h>
/* This is the definition of the element's object structure. */
typedef struct _GstDVDec GstDVDec;
@ -44,36 +40,48 @@ struct _GstDVDec {
GstElement element;
/* We need to keep track of our pads, so we do so here. */
GstPad *sinkpad,
*videosrcpad,
*audiosrcpad;
GstPad *sinkpad;
GstPad *videosrcpad;
GstPad *audiosrcpad;
dv_decoder_t *decoder;
gboolean clamp_luma;
gboolean clamp_chroma;
gint quality;
GstByteStream *bs;
dv_color_space_t space;
gint bpp;
gboolean PAL;
GstAdapter *adapter;
gint frame_len;
/* PAL or NTSC flag */
gboolean PAL;
/* video params */
gdouble framerate;
gint height;
gboolean wide;
/* audio params */
gint frequency;
gint channels;
gboolean wide;
/* negotiated output */
dv_color_space_t space;
gint bpp;
gint length;
gint framecount;
gint drop_factor;
guint64 next_ts;
gint framecount;
guint64 timestamp;
guint64 duration;
guint64 audio_offset;
guint64 video_offset;
guint64 end_position;
gboolean need_discont;
gboolean new_media;
gboolean loop;
gboolean found_header;
gboolean found_header;
gint16 *audio_buffers[4];
};
@ -114,10 +122,6 @@ struct _GstDVDecClass {
*/
GType gst_dvdec_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
G_END_DECLS
#endif /* __GST_DVDEC_H__ */

2
ext/esd/esdsink.c
View file

@ -137,7 +137,7 @@ gst_esdsink_class_init (GstEsdSinkClass * klass)
gstbaseaudiosink_class = (GstBaseAudioSinkClass *) klass;
gstaudiosink_class = (GstAudioSinkClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_BASEAUDIOSINK);
parent_class = g_type_class_ref (GST_TYPE_AUDIOSINK);
gobject_class->dispose = gst_esdsink_dispose;