/* 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
*
* 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.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+/**
+ * SECTION:element-dvdec
+ *
+ * dvdec decodes DV video into raw video. The element expects a full DV frame
+ * as input, which is 120000 bytes for NTSC and 144000 for PAL video.
+ *
+ * This element can perform simple frame dropping with the #GstDVDec:drop-factor
+ * property. Setting this property to a value N > 1 will only decode every
+ * Nth frame.
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch-1.0 filesrc location=test.dv ! dvdemux name=demux ! dvdec ! xvimagesink
+ * ]| This pipeline decodes and renders the raw DV stream to a videosink.
+ * </refsect2>
+ *
+ * Last reviewed on 2006-02-28 (0.10.3)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
+#include <math.h>
+#include <gst/video/video.h>
+#include <gst/video/gstvideometa.h>
+#include <gst/video/gstvideopool.h>
-/* First, include the header file for the plugin, to bring in the
- * object definition and other useful things.
- */
#include "gstdvdec.h"
+/* sizes of one input buffer */
#define NTSC_HEIGHT 480
#define NTSC_BUFFER 120000
-#define NTSC_FRAMERATE 29.997
+#define NTSC_FRAMERATE_NUMERATOR 30000
+#define NTSC_FRAMERATE_DENOMINATOR 1001
#define PAL_HEIGHT 576
#define PAL_BUFFER 144000
-#define PAL_FRAMERATE 25.0
+#define PAL_FRAMERATE_NUMERATOR 25
+#define PAL_FRAMERATE_DENOMINATOR 1
-/* The ElementDetails structure gives a human-readable description
- * of the plugin, as well as author and version data.
- */
-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>"
-);
-
-
-/* These are the signals that this element can fire. They are zero-
- * based because the numbers themselves are private to the object.
- * LAST_SIGNAL is used for initialization of the signal array.
- */
-enum {
- /* FILL ME */
- LAST_SIGNAL
+#define PAL_NORMAL_PAR_X 59
+#define PAL_NORMAL_PAR_Y 54
+#define PAL_WIDE_PAR_X 118
+#define PAL_WIDE_PAR_Y 81
+
+#define NTSC_NORMAL_PAR_X 10
+#define NTSC_NORMAL_PAR_Y 11
+#define NTSC_WIDE_PAR_X 40
+#define NTSC_WIDE_PAR_Y 33
+
+#define DV_DEFAULT_QUALITY DV_QUALITY_BEST
+#define DV_DEFAULT_DECODE_NTH 1
+
+GST_DEBUG_CATEGORY_STATIC (dvdec_debug);
+#define GST_CAT_DEFAULT dvdec_debug
+
+enum
+{
+ PROP_0,
+ PROP_CLAMP_LUMA,
+ PROP_CLAMP_CHROMA,
+ PROP_QUALITY,
+ PROP_DECODE_NTH
};
-/* Arguments are identified the same way, but cannot be zero, so you
- * must leave the ARG_0 entry in as a placeholder.
- */
-enum {
- ARG_0,
- ARG_CLAMP_LUMA,
- ARG_CLAMP_CHROMA,
- ARG_QUALITY,
- /* FILL ME */
+const gint qualities[] = {
+ DV_QUALITY_DC,
+ DV_QUALITY_AC_1,
+ DV_QUALITY_AC_2,
+ DV_QUALITY_DC | DV_QUALITY_COLOR,
+ DV_QUALITY_AC_1 | DV_QUALITY_COLOR,
+ DV_QUALITY_AC_2 | DV_QUALITY_COLOR
};
-/* The PadFactory structures describe what pads the element has or
- * can have. They can be quite complex, but for this dvdec plugin
- * they are rather simple.
- */
-static GstStaticPadTemplate sink_temp =
-GST_STATIC_PAD_TEMPLATE
-(
- "sink" ,
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- "video/x-dv, systemstream = (boolean) true"
- )
-);
-
-static GstStaticPadTemplate video_src_temp =
-GST_STATIC_PAD_TEMPLATE
-(
- "video",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- "video/x-raw-yuv, "
- "format = (fourcc) YUY2, "
- "width = (int) 720, "
- "height = (int) { "
- G_STRINGIFY(NTSC_HEIGHT) ", "
- G_STRINGIFY(PAL_HEIGHT)
- " }, "
- "framerate = (double) { "
- G_STRINGIFY(PAL_FRAMERATE) ", "
- G_STRINGIFY(NTSC_FRAMERATE)
- " }; "
-
- "video/x-raw-rgb, "
- "bpp = (int) 32, "
- "depth = (int) 32, "
- "endianness = (int) " G_STRINGIFY(G_BIG_ENDIAN) ", "
- "red_mask = (int) 0x000000ff, "
- "green_mask = (int) 0x0000ff00, "
- "blue_mask = (int) 0x00ff0000, "
- "width = (int) 720, "
- "height = (int) { "
- G_STRINGIFY(NTSC_HEIGHT) ", "
- G_STRINGIFY(PAL_HEIGHT)
- " }, "
- "framerate = (double) { "
- G_STRINGIFY(PAL_FRAMERATE) ", "
- G_STRINGIFY(NTSC_FRAMERATE)
- " }; "
-
- "video/x-raw-rgb, "
- "bpp = (int) 24, "
- "depth = (int) 24, "
- "endianness = (int) " G_STRINGIFY(G_BIG_ENDIAN) ", "
- "red_mask = (int) 0x000000ff, "
- "green_mask = (int) 0x0000ff00, "
- "blue_mask = (int) 0x00ff0000, "
- "width = (int) 720, "
- "height = (int) { "
- G_STRINGIFY(NTSC_HEIGHT) ", "
- G_STRINGIFY(PAL_HEIGHT)
- " }, "
- "framerate = (double) { "
- G_STRINGIFY(PAL_FRAMERATE) ", "
- G_STRINGIFY(NTSC_FRAMERATE)
- " }"
- )
-);
-
-static GstStaticPadTemplate audio_src_temp =
-GST_STATIC_PAD_TEMPLATE
-(
- "audio",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- "audio/x-raw-int, "
- "depth = (int) 16, "
- "width = (int) 16, "
- "signed = (boolean) TRUE, "
- "channels = (int) 2, "
- "endianness = (int) " G_STRINGIFY(G_LITTLE_ENDIAN) ", "
- "rate = (int) [ 4000, 48000 ]"
- )
-);
+static GstStaticPadTemplate sink_temp = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-dv, systemstream = (boolean) false")
+ );
+
+static GstStaticPadTemplate src_temp = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-raw, "
+ "format = (string) { YUY2, BGRx, RGB }, "
+ "framerate = (fraction) [ 1/1, 60/1 ], "
+ "width = (int) 720, " "height = (int) { 576, 480 }")
+ );
#define GST_TYPE_DVDEC_QUALITY (gst_dvdec_quality_get_type())
-GType
+static GType
gst_dvdec_quality_get_type (void)
{
static GType qtype = 0;
+
if (qtype == 0) {
- static const GFlagsValue values[] = {
- { DV_QUALITY_COLOR, "DV_QUALITY_COLOR", "Color or monochrome decoding" },
- { DV_QUALITY_AC_1, "DV_QUALITY_AC_1", "AC 1 something" },
- { DV_QUALITY_AC_2, "DV_QUALITY_AC_2", "AC 2 something" },
- { 0, NULL, NULL }
+ static const GEnumValue values[] = {
+ {0, "Monochrome, DC (Fastest)", "fastest"},
+ {1, "Monochrome, first AC coefficient", "monochrome-ac"},
+ {2, "Monochrome, highest quality", "monochrome-best"},
+ {3, "Colour, DC, fastest", "colour-fastest"},
+ {4, "Colour, using only the first AC coefficient", "colour-ac"},
+ {5, "Highest quality colour decoding", "best"},
+ {0, NULL, NULL},
};
- qtype = g_flags_register_static ("GstDVDecQualityFlags", values);
+
+ qtype = g_enum_register_static ("GstDVDecQualityEnum", values);
}
return qtype;
}
-/* A number of functon prototypes are given so we can refer to them later. */
-static void gst_dvdec_base_init (gpointer g_class);
-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 const GstFormat* gst_dvdec_get_formats (GstPad *pad);
-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);
-
-static GstPadLinkReturn gst_dvdec_video_link (GstPad *pad,
- const GstCaps *caps);
-static GstCaps* gst_dvdec_video_getcaps (GstPad *pad);
-
-static const GstEventMask*
- gst_dvdec_get_event_masks (GstPad *pad);
-static gboolean gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event);
-
-static void gst_dvdec_loop (GstElement *element);
-
-static GstElementStateReturn
- gst_dvdec_change_state (GstElement *element);
-
-static void gst_dvdec_set_property (GObject *object, guint prop_id,
- const GValue *value, GParamSpec *pspec);
-static void gst_dvdec_get_property (GObject *object, guint prop_id,
- GValue *value, GParamSpec *pspec);
-
-/* The parent class pointer needs to be kept around for some object
- * operations.
- */
-static GstElementClass *parent_class = NULL;
+#define gst_dvdec_parent_class parent_class
+G_DEFINE_TYPE (GstDVDec, gst_dvdec, GST_TYPE_ELEMENT);
-/* This array holds the ids of the signals registered for this object.
- * The array indexes are based on the enum up above.
- */
-/*static guint gst_dvdec_signals[LAST_SIGNAL] = { 0 }; */
+static GstFlowReturn gst_dvdec_chain (GstPad * pad, GstObject * parent,
+ GstBuffer * buffer);
+static gboolean gst_dvdec_sink_event (GstPad * pad, GstObject * parent,
+ GstEvent * event);
-/* This function is used to register and subsequently return the type
- * identifier for this object class. On first invocation, it will
- * register the type, providing the name of the class, struct sizes,
- * and pointers to the various functions that define the class.
- */
-GType
-gst_dvdec_get_type (void)
-{
- static GType dvdec_type = 0;
-
- if (!dvdec_type) {
- static const GTypeInfo dvdec_info = {
- sizeof (GstDVDecClass),
- gst_dvdec_base_init,
- NULL,
- (GClassInitFunc) gst_dvdec_class_init,
- NULL,
- NULL,
- sizeof (GstDVDec),
- 0,
- (GInstanceInitFunc) gst_dvdec_init,
- };
- dvdec_type = g_type_register_static (GST_TYPE_ELEMENT, "GstDVDec", &dvdec_info, 0);
- }
- return dvdec_type;
-}
+static GstStateChangeReturn gst_dvdec_change_state (GstElement * element,
+ GstStateChange transition);
-static void
-gst_dvdec_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- /* The pad templates can be easily generated from the factories above,
- * and then added to the list of padtemplates for the elementfactory.
- * Note that the generated padtemplates are stored in static global
- * variables, for the gst_dvdec_init function to use later on.
- */
- gst_element_class_add_pad_template (element_class, gst_static_pad_template_get(&sink_temp));
- gst_element_class_add_pad_template (element_class, gst_static_pad_template_get(&video_src_temp));
- gst_element_class_add_pad_template (element_class, gst_static_pad_template_get(&audio_src_temp));
-
- gst_element_class_set_details (element_class, &dvdec_details);
-}
+static void gst_dvdec_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_dvdec_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
-/* In order to create an instance of an object, the class must be
- * initialized by this function. GObject will take care of running
- * it, based on the pointer to the function provided above.
- */
static void
-gst_dvdec_class_init (GstDVDecClass *klass)
+gst_dvdec_class_init (GstDVDecClass * klass)
{
- /* Class pointers are needed to supply pointers to the private
- * implementations of parent class methods.
- */
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
- /* Since the dvdec class contains the parent classes, you can simply
- * cast the pointer to get access to the parent classes.
- */
- gobject_class = (GObjectClass*) klass;
- gstelement_class = (GstElementClass*) klass;
-
- /* The parent class is needed for class method overrides. */
- parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CLAMP_LUMA,
- g_param_spec_boolean ("clamp_luma", "Clamp luma", "Clamp luma",
- FALSE, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CLAMP_CHROMA,
- g_param_spec_boolean ("clamp_chroma", "Clamp chroma", "Clamp chroma",
- FALSE, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_QUALITY,
- g_param_spec_flags ("quality", "Quality", "Decoding quality",
- GST_TYPE_DVDEC_QUALITY, DV_QUALITY_BEST, G_PARAM_READWRITE));
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
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 */
- dv_init(0, 0);
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CLAMP_LUMA,
+ g_param_spec_boolean ("clamp-luma", "Clamp luma", "Clamp luma",
+ FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CLAMP_CHROMA,
+ g_param_spec_boolean ("clamp-chroma", "Clamp chroma", "Clamp chroma",
+ FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_QUALITY,
+ g_param_spec_enum ("quality", "Quality", "Decoding quality",
+ GST_TYPE_DVDEC_QUALITY, DV_DEFAULT_QUALITY,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DECODE_NTH,
+ g_param_spec_int ("drop-factor", "Drop Factor", "Only decode Nth frame",
+ 1, G_MAXINT, DV_DEFAULT_DECODE_NTH,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_dvdec_change_state);
+
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&sink_temp));
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&src_temp));
+
+ gst_element_class_set_static_metadata (gstelement_class, "DV video decoder",
+ "Codec/Decoder/Video",
+ "Uses libdv to decode DV video (smpte314) (libdv.sourceforge.net)",
+ "Erik Walthinsen <omega@cse.ogi.edu>," "Wim Taymans <wim@fluendo.com>");
+
+ GST_DEBUG_CATEGORY_INIT (dvdec_debug, "dvdec", 0, "DV decoding element");
}
-/* This function is responsible for initializing a specific instance of
- * the plugin.
- */
static void
-gst_dvdec_init(GstDVDec *dvdec)
+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");
+ dvdec->sinkpad = gst_pad_new_from_static_template (&sink_temp, "sink");
+ gst_pad_set_chain_function (dvdec->sinkpad, gst_dvdec_chain);
+ gst_pad_set_event_function (dvdec->sinkpad, gst_dvdec_sink_event);
gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->sinkpad);
- gst_pad_set_query_function (dvdec->sinkpad, NULL);
- 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));
-
- dvdec->videosrcpad = gst_pad_new_from_template (gst_static_pad_template_get (&video_src_temp), "video");
- gst_pad_set_query_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_src_query));
- gst_pad_set_query_type_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_src_query_types));
- gst_pad_set_event_function (dvdec->videosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_handle_src_event));
- 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));
- 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_element_add_pad (GST_ELEMENT (dvdec), dvdec->videosrcpad);
-
- dvdec->audiosrcpad = gst_pad_new_from_template (gst_static_pad_template_get (&audio_src_temp), "audio");
- gst_pad_set_query_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_src_query));
- gst_pad_set_query_type_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_src_query_types));
- gst_pad_set_event_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_handle_src_event));
- gst_pad_set_event_mask_function (dvdec->audiosrcpad, GST_DEBUG_FUNCPTR (gst_dvdec_get_event_masks));
- gst_pad_set_convert_function (dvdec->audiosrcpad, 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);
- gst_element_add_pad (GST_ELEMENT(dvdec), dvdec->audiosrcpad);
-
- gst_element_set_loop_function (GST_ELEMENT (dvdec), gst_dvdec_loop);
-
- dvdec->length = 0;
- dvdec->next_ts = 0LL;
- dvdec->end_position = -1LL;
- dvdec->need_discont = FALSE;
- dvdec->framerate = 0;
- dvdec->height = 0;
- dvdec->frequency = 0;
- dvdec->channels = 0;
-
+
+ dvdec->srcpad = gst_pad_new_from_static_template (&src_temp, "src");
+ gst_pad_use_fixed_caps (dvdec->srcpad);
+ gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->srcpad);
+
+ dvdec->framerate_numerator = 0;
+ dvdec->framerate_denominator = 0;
+ dvdec->wide = FALSE;
+ dvdec->drop_factor = 1;
+
dvdec->clamp_luma = FALSE;
dvdec->clamp_chroma = FALSE;
- dvdec->quality = DV_QUALITY_BEST;
- dvdec->loop = FALSE;
-
- for (i = 0; i <4; i++) {
- dvdec->audio_buffers[i] = (gint16 *)g_malloc (DV_AUDIO_MAX_SAMPLES * sizeof (gint16));
- }
+ dvdec->quality = DV_DEFAULT_QUALITY;
}
-static const GstFormat*
-gst_dvdec_get_formats (GstPad *pad)
-{
- static const GstFormat src_formats[] = {
- GST_FORMAT_BYTES,
- GST_FORMAT_DEFAULT,
- GST_FORMAT_TIME,
- 0
- };
- static const GstFormat sink_formats[] = {
- GST_FORMAT_BYTES,
- GST_FORMAT_TIME,
- 0
- };
-
- return (GST_PAD_IS_SRC (pad) ? src_formats : sink_formats);
-}
-
static gboolean
-gst_dvdec_src_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
- GstFormat *dest_format, gint64 *dest_value)
+gst_dvdec_sink_setcaps (GstDVDec * dvdec, GstCaps * caps)
{
- gboolean res = TRUE;
- GstDVDec *dvdec;
- gint scale = 1;
-
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
+ GstStructure *s;
+ const GValue *par = NULL, *rate = NULL;
+
+ /* first parse the caps */
+ s = gst_caps_get_structure (caps, 0);
+
+ /* we allow framerate and PAR to be overwritten. framerate is mandatory. */
+ if (!(rate = gst_structure_get_value (s, "framerate")))
+ goto no_framerate;
+ par = gst_structure_get_value (s, "pixel-aspect-ratio");
+
+ if (par) {
+ dvdec->par_x = gst_value_get_fraction_numerator (par);
+ dvdec->par_y = gst_value_get_fraction_denominator (par);
+ dvdec->need_par = FALSE;
+ } else {
+ dvdec->par_x = 0;
+ dvdec->par_y = 0;
+ dvdec->need_par = TRUE;
+ }
+ dvdec->framerate_numerator = gst_value_get_fraction_numerator (rate);
+ dvdec->framerate_denominator = gst_value_get_fraction_denominator (rate);
+ dvdec->sink_negotiated = TRUE;
+ dvdec->src_negotiated = FALSE;
- if (dvdec->length == 0)
- return FALSE;
+ return TRUE;
- if (dvdec->decoder == NULL)
+ /* ERRORS */
+no_framerate:
+ {
+ GST_DEBUG_OBJECT (dvdec, "no framerate specified in caps");
return FALSE;
-
- switch (src_format) {
- case GST_FORMAT_BYTES:
- switch (*dest_format) {
- case GST_FORMAT_TIME:
- default:
- res = FALSE;
- }
- break;
- case GST_FORMAT_TIME:
- switch (*dest_format) {
- case GST_FORMAT_BYTES:
- if (pad == dvdec->videosrcpad)
- scale = 720 * dvdec->height * dvdec->bpp;
- else if (pad == dvdec->audiosrcpad)
- scale = dvdec->decoder->audio->num_channels * 2;
- /* fallthrough */
- case GST_FORMAT_DEFAULT:
- if (pad == dvdec->videosrcpad)
- *dest_value = src_value * dvdec->framerate * scale / GST_SECOND;
- else if (pad == dvdec->audiosrcpad)
- *dest_value = src_value * dvdec->decoder->audio->frequency * scale / GST_SECOND;
- break;
- default:
- res = FALSE;
- }
- break;
- default:
- res = FALSE;
}
- return res;
}
-static gboolean
-gst_dvdec_sink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
- GstFormat *dest_format, gint64 *dest_value)
+static void
+gst_dvdec_negotiate_pool (GstDVDec * dec, GstCaps * caps, GstVideoInfo * info)
{
- gboolean res = TRUE;
- GstDVDec *dvdec;
-
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
+ GstQuery *query;
+ GstBufferPool *pool;
+ guint size, min, max;
+ GstStructure *config;
- if (dvdec->length == 0)
- return FALSE;
+ /* find a pool for the negotiated caps now */
+ query = gst_query_new_allocation (caps, TRUE);
- switch (src_format) {
- case GST_FORMAT_BYTES:
- switch (*dest_format) {
- case GST_FORMAT_TIME:
- {
- guint64 frame;
- /* get frame number */
- frame = src_value / dvdec->length;
-
- *dest_value = (frame * GST_SECOND) / dvdec->framerate;
- break;
- }
- default:
- res = FALSE;
- }
- break;
- case GST_FORMAT_TIME:
- switch (*dest_format) {
- case GST_FORMAT_BYTES:
- {
- guint64 frame;
- /* calculate the frame */
- frame = src_value * dvdec->framerate / GST_SECOND;
- /* calculate the offset */
- *dest_value = frame * dvdec->length;
- break;
- }
- default:
- res = FALSE;
- }
- break;
- default:
- res = FALSE;
+ if (!gst_pad_peer_query (dec->srcpad, query)) {
+ GST_DEBUG_OBJECT (dec, "didn't get downstream ALLOCATION hints");
}
- return res;
-}
-static const GstQueryType*
-gst_dvdec_get_src_query_types (GstPad *pad)
-{
- static const GstQueryType src_query_types[] = {
- GST_QUERY_TOTAL,
- GST_QUERY_POSITION,
- 0
- };
- return src_query_types;
-}
+ if (gst_query_get_n_allocation_pools (query) > 0) {
+ /* we got configuration from our peer, parse them */
+ gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
+ size = MAX (size, info->size);
+ } else {
+ pool = NULL;
+ size = info->size;
+ min = max = 0;
+ }
-static gboolean
-gst_dvdec_src_query (GstPad *pad, GstQueryType type,
- GstFormat *format, gint64 *value)
-{
- gboolean res = TRUE;
- GstDVDec *dvdec;
+ if (pool == NULL) {
+ /* we did not get a pool, make one ourselves then */
+ pool = gst_video_buffer_pool_new ();
+ }
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
-
- switch (type) {
- case GST_QUERY_TOTAL:
- switch (*format) {
- default:
- {
- guint64 len;
- GstFormat tmp_format;
-
- len = gst_bytestream_length (dvdec->bs);
- tmp_format = GST_FORMAT_TIME;
- if (len == -1 || !gst_pad_convert (dvdec->sinkpad,
- GST_FORMAT_BYTES,
- len,
- &tmp_format, value))
- {
- return FALSE;
- }
- if (!gst_pad_convert (pad, GST_FORMAT_TIME, *value, format, value)) {
- return FALSE;
- }
- break;
- }
- }
- break;
- case GST_QUERY_POSITION:
- switch (*format) {
- default:
- res = gst_pad_convert (pad, GST_FORMAT_TIME, dvdec->next_ts, format, value);
- break;
- }
- break;
- default:
- res = FALSE;
- break;
+ if (dec->pool) {
+ gst_buffer_pool_set_active (dec->pool, FALSE);
+ gst_object_unref (dec->pool);
}
- 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);
-}
+ dec->pool = pool;
+
+ config = gst_buffer_pool_get_config (pool);
+ gst_buffer_pool_config_set_params (config, caps, size, min, max);
+
+ if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
+ /* just set the option, if the pool can support it we will transparently use
+ * it through the video info API. We could also see if the pool support this
+ * option and only activate it then. */
+ gst_buffer_pool_config_add_option (config,
+ GST_BUFFER_POOL_OPTION_VIDEO_META);
+ }
+ gst_buffer_pool_set_config (pool, config);
+
+ /* and activate */
+ gst_buffer_pool_set_active (pool, TRUE);
+
+ gst_query_unref (query);
+}
static gboolean
-gst_dvdec_handle_sink_event (GstDVDec *dvdec)
+gst_dvdec_src_negotiate (GstDVDec * dvdec)
{
- guint32 remaining;
- GstEvent *event;
- GstEventType type;
-
- gst_bytestream_get_status (dvdec->bs, &remaining, &event);
-
- type = event? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
-
- switch (type) {
- case GST_EVENT_FLUSH:
- 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;
- }
+ GstCaps *othercaps;
+
+ /* no PAR was specified in input, derive from encoded data */
+ if (dvdec->need_par) {
+ if (dvdec->PAL) {
+ if (dvdec->wide) {
+ dvdec->par_x = PAL_WIDE_PAR_X;
+ dvdec->par_y = PAL_WIDE_PAR_Y;
+ } else {
+ dvdec->par_x = PAL_NORMAL_PAR_X;
+ dvdec->par_y = PAL_NORMAL_PAR_Y;
}
- /* assume 0 then */
- if (!found) {
- dvdec->next_ts = 0LL;
+ } else {
+ if (dvdec->wide) {
+ dvdec->par_x = NTSC_WIDE_PAR_X;
+ dvdec->par_y = NTSC_WIDE_PAR_Y;
+ } else {
+ dvdec->par_x = NTSC_NORMAL_PAR_X;
+ dvdec->par_y = NTSC_NORMAL_PAR_Y;
}
- dvdec->need_discont = TRUE;
- break;
}
- default:
- return gst_pad_event_default (dvdec->sinkpad, event);
- break;
+ GST_DEBUG_OBJECT (dvdec, "Inferred PAR %d/%d from video format",
+ dvdec->par_x, dvdec->par_y);
}
- gst_event_unref (event);
+
+ /* ignoring rgb, bgr0 for now */
+ dvdec->bpp = 2;
+
+ gst_video_info_set_format (&dvdec->vinfo, GST_VIDEO_FORMAT_YUY2,
+ 720, dvdec->height);
+ dvdec->vinfo.fps_n = dvdec->framerate_numerator;
+ dvdec->vinfo.fps_d = dvdec->framerate_denominator;
+ dvdec->vinfo.par_n = dvdec->par_x;
+ dvdec->vinfo.par_d = dvdec->par_y;
+ if (dvdec->interlaced) {
+ dvdec->vinfo.interlace_mode = GST_VIDEO_INTERLACE_MODE_INTERLEAVED;
+ } else {
+ dvdec->vinfo.interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
+ }
+
+ othercaps = gst_video_info_to_caps (&dvdec->vinfo);
+ gst_pad_set_caps (dvdec->srcpad, othercaps);
+
+ gst_dvdec_negotiate_pool (dvdec, othercaps, &dvdec->vinfo);
+ gst_caps_unref (othercaps);
+
+ dvdec->src_negotiated = TRUE;
+
return TRUE;
}
static gboolean
-gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event)
+gst_dvdec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
- gboolean res = TRUE;
GstDVDec *dvdec;
+ gboolean res = TRUE;
+
+ dvdec = GST_DVDEC (parent);
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
-
switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_SEEK_SEGMENT:
- {
- gint64 position;
- GstFormat format;
-
- /* first bring the format to time */
- format = GST_FORMAT_TIME;
- if (!gst_pad_convert (pad,
- GST_EVENT_SEEK_FORMAT (event),
- GST_EVENT_SEEK_ENDOFFSET (event),
- &format, &position))
- {
- /* could not convert seek format to time offset */
- res = FALSE;
- break;
- }
+ case GST_EVENT_FLUSH_STOP:
+ gst_segment_init (&dvdec->segment, GST_FORMAT_UNDEFINED);
+ dvdec->need_segment = FALSE;
+ break;
+ case GST_EVENT_SEGMENT:{
+ const GstSegment *segment;
- dvdec->end_position = position;
- dvdec->loop = GST_EVENT_SEEK_TYPE (event) & GST_SEEK_FLAG_SEGMENT_LOOP;
+ gst_event_parse_segment (event, &segment);
+
+ GST_DEBUG_OBJECT (dvdec, "Got SEGMENT %" GST_SEGMENT_FORMAT, &segment);
+
+ gst_segment_copy_into (segment, &dvdec->segment);
+ if (!gst_pad_has_current_caps (dvdec->srcpad)) {
+ dvdec->need_segment = TRUE;
+ gst_event_unref (event);
+ event = NULL;
+ res = TRUE;
+ } else {
+ dvdec->need_segment = FALSE;
+ }
+ break;
}
- case GST_EVENT_SEEK:
+ case GST_EVENT_CAPS:
{
- gint64 position;
- GstFormat format;
-
- /* first bring the format to time */
- format = GST_FORMAT_TIME;
- if (!gst_pad_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;
- /* then try to figure out the byteoffset for this time */
- format = GST_FORMAT_BYTES;
- if (!gst_pad_convert (dvdec->sinkpad, GST_FORMAT_TIME, position,
- &format, &position))
- {
- /* could not convert seek format to byte offset */
- res = FALSE;
- break;
- }
- /* seek to offset */
- 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;
+ GstCaps *caps;
+
+ gst_event_parse_caps (event, &caps);
+ res = gst_dvdec_sink_setcaps (dvdec, caps);
+ gst_event_unref (event);
+ event = NULL;
break;
}
+
default:
- res = FALSE;
break;
}
- gst_event_unref (event);
- return res;
-}
-static GstCaps*
-gst_dvdec_video_getcaps (GstPad *pad)
-{
- GstDVDec *dvdec;
- GstCaps *caps;
- 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));
-
- if (dvdec->found_header)
- {
- int i;
-
- /* set the height */
- for (i = 0; i < gst_caps_get_size (caps); i++)
- {
- GstStructure *structure = gst_caps_get_structure (caps, i);
- gst_structure_set(structure,
- "height", G_TYPE_INT, dvdec->height,
- "framerate", G_TYPE_DOUBLE, dvdec->framerate, NULL
- );
- }
- }
-
- return caps;
+ if (event)
+ res = gst_pad_push_event (dvdec->srcpad, event);
+
+ return res;
}
-static GstPadLinkReturn
-gst_dvdec_video_link (GstPad *pad, const GstCaps *caps)
+static GstFlowReturn
+gst_dvdec_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
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);
-
- /* it worked, try to find what it was again */
- if (!gst_structure_get_fourcc (structure, "format", &fourcc) ||
- !gst_structure_get_int (structure, "height", &height) ||
- !gst_structure_get_double (structure, "framerate", &framerate))
- return GST_PAD_LINK_REFUSED;
-
- if ((height != dvdec->height) || (framerate != dvdec->framerate))
- return GST_PAD_LINK_REFUSED;
-
- if (fourcc == GST_STR_FOURCC ("RGB ")) {
- gint bpp;
-
- gst_structure_get_int (structure, "bpp", &bpp);
- if (bpp == 24) {
- dvdec->space = e_dv_color_rgb;
- dvdec->bpp = 3;
- }
- else {
- dvdec->space = e_dv_color_bgr0;
- dvdec->bpp = 4;
- }
- }
- else {
- dvdec->space = e_dv_color_yuv;
- dvdec->bpp = 2;
+ guint8 *inframe;
+ guint8 *outframe_ptrs[3];
+ gint outframe_pitches[3];
+ GstMapInfo map;
+ GstVideoFrame frame;
+ GstBuffer *outbuf;
+ GstFlowReturn ret = GST_FLOW_OK;
+ guint length;
+ guint64 cstart, cstop;
+ gboolean PAL, wide;
+
+ dvdec = GST_DVDEC (parent);
+
+ gst_buffer_map (buf, &map, GST_MAP_READ);
+ inframe = map.data;
+
+ /* buffer should be at least the size of one NTSC frame, this should
+ * be enough to decode the header. */
+ if (G_UNLIKELY (map.size < NTSC_BUFFER))
+ goto wrong_size;
+
+ /* preliminary dropping. unref and return if outside of configured segment */
+ if ((dvdec->segment.format == GST_FORMAT_TIME) &&
+ (!(gst_segment_clip (&dvdec->segment, GST_FORMAT_TIME,
+ GST_BUFFER_TIMESTAMP (buf),
+ GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf),
+ &cstart, &cstop))))
+ goto dropping;
+
+ if (G_UNLIKELY (dv_parse_header (dvdec->decoder, inframe) < 0))
+ goto parse_header_error;
+
+ /* get size */
+ PAL = dv_system_50_fields (dvdec->decoder);
+ wide = dv_format_wide (dvdec->decoder);
+
+ /* check the buffer is of right size after we know if we are
+ * dealing with PAL or NTSC */
+ length = (PAL ? PAL_BUFFER : NTSC_BUFFER);
+ if (G_UNLIKELY (map.size < length))
+ goto wrong_size;
+
+ dv_parse_packs (dvdec->decoder, inframe);
+
+ if (dvdec->video_offset % dvdec->drop_factor != 0)
+ goto skip;
+
+ /* renegotiate on change */
+ if (PAL != dvdec->PAL || wide != dvdec->wide) {
+ dvdec->src_negotiated = FALSE;
+ dvdec->PAL = PAL;
+ dvdec->wide = wide;
}
-
- return GST_PAD_LINK_OK;
-}
-static void
-gst_dvdec_push (GstDVDec *dvdec, GstBuffer *outbuf, GstPad *pad, GstClockTime ts)
-{
- GST_BUFFER_TIMESTAMP (outbuf) = ts;
+ dvdec->height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
- if (dvdec->need_discont) {
- GstEvent *discont;
+ dvdec->interlaced = !dv_is_progressive (dvdec->decoder);
- discont = gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME, ts, NULL);
- gst_pad_push (pad, GST_DATA (discont));
+ /* negotiate if not done yet */
+ if (!dvdec->src_negotiated) {
+ if (!gst_dvdec_src_negotiate (dvdec))
+ goto not_negotiated;
}
- gst_pad_push (pad, GST_DATA (outbuf));
+ if (gst_pad_check_reconfigure (dvdec->srcpad)) {
+ GstCaps *caps;
- 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)));
+ caps = gst_pad_get_current_caps (dvdec->srcpad);
+ gst_dvdec_negotiate_pool (dvdec, caps, &dvdec->vinfo);
+ gst_caps_unref (caps);
}
-}
-static void
-gst_dvdec_loop (GstElement *element)
-{
- GstDVDec *dvdec;
- GstBuffer *buf, *outbuf;
- guint8 *inframe;
- gint height;
- guint32 length, got_bytes;
- GstFormat format;
- guint64 ts;
- gdouble fps;
-
- dvdec = GST_DVDEC (element);
-
- /* first read enough bytes to parse the header */
- got_bytes = gst_bytestream_peek_bytes (dvdec->bs, &inframe, header_size);
- if (got_bytes < header_size) {
- 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);
- height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
- length = (dvdec->PAL ? PAL_BUFFER : NTSC_BUFFER);
-
- if ((dvdec->framerate != fps) ||
- (dvdec->height != height))
- {
- dvdec->height = height;
- dvdec->framerate = fps;
-
- if (GST_PAD_LINK_FAILED (gst_pad_renegotiate (dvdec->videosrcpad)))
- {
- GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL), (NULL));
- return;
- }
- }
-
- if (length != dvdec->length) {
- dvdec->length = length;
- gst_bytestream_size_hint (dvdec->bs, length);
+ if (dvdec->need_segment) {
+ gst_pad_push_event (dvdec->srcpad, gst_event_new_segment (&dvdec->segment));
+ dvdec->need_segment = FALSE;
}
- /* 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;
+ ret = gst_buffer_pool_acquire_buffer (dvdec->pool, &outbuf, NULL);
+ if (G_UNLIKELY (ret != GST_FLOW_OK))
+ goto no_buffer;
+
+ gst_video_frame_map (&frame, &dvdec->vinfo, outbuf, GST_MAP_WRITE);
+
+ outframe_ptrs[0] = GST_VIDEO_FRAME_COMP_DATA (&frame, 0);
+ outframe_pitches[0] = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 0);
+
+ /* the rest only matters for YUY2 */
+ if (dvdec->bpp < 3) {
+ outframe_ptrs[1] = GST_VIDEO_FRAME_COMP_DATA (&frame, 1);
+ outframe_ptrs[2] = GST_VIDEO_FRAME_COMP_DATA (&frame, 2);
+
+ outframe_pitches[1] = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 1);
+ outframe_pitches[2] = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 2);
}
- format = GST_FORMAT_TIME;
- gst_pad_query (dvdec->videosrcpad, GST_QUERY_POSITION, &format, &ts);
+ GST_DEBUG_OBJECT (dvdec, "decoding and pushing buffer");
+ dv_decode_full_frame (dvdec->decoder, inframe,
+ e_dv_color_yuv, outframe_ptrs, outframe_pitches);
- dvdec->next_ts += GST_SECOND / dvdec->framerate;
+ gst_video_frame_unmap (&frame);
- dv_parse_packs (dvdec->decoder, GST_BUFFER_DATA (buf));
+ GST_BUFFER_FLAG_UNSET (outbuf, GST_VIDEO_BUFFER_FLAG_TFF);
- if (GST_PAD_IS_LINKED (dvdec->audiosrcpad)) {
- gint16 *a_ptr;
- gint i, j;
+ GST_BUFFER_OFFSET (outbuf) = GST_BUFFER_OFFSET (buf);
+ GST_BUFFER_OFFSET_END (outbuf) = GST_BUFFER_OFFSET_END (buf);
+ GST_BUFFER_TIMESTAMP (outbuf) = cstart;
+ GST_BUFFER_DURATION (outbuf) = cstop - cstart;
- dv_decode_full_audio (dvdec->decoder, GST_BUFFER_DATA (buf), dvdec->audio_buffers);
+ ret = gst_pad_push (dvdec->srcpad, outbuf);
- if ((dvdec->decoder->audio->frequency != dvdec->frequency) ||
- (dvdec->decoder->audio->num_channels != dvdec->channels))
- {
- if (!gst_pad_set_explicit_caps (dvdec->audiosrcpad,
- gst_caps_new_simple (
- "audio/x-raw-int",
- "rate", G_TYPE_INT, dvdec->decoder->audio->frequency,
- "depth", G_TYPE_INT, 16,
- "width", G_TYPE_INT, 16,
- "signed", G_TYPE_BOOLEAN, TRUE,
- "channels", G_TYPE_INT, dvdec->decoder->audio->num_channels,
- "endianness", G_TYPE_INT, G_LITTLE_ENDIAN,
- NULL
- )))
- {
- gst_buffer_unref (buf);
- GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL), (NULL));
- return;
- }
-
- dvdec->frequency = dvdec->decoder->audio->frequency;
- dvdec->channels = dvdec->decoder->audio->num_channels;
- }
-
- outbuf = gst_buffer_new ();
- GST_BUFFER_SIZE (outbuf) = dvdec->decoder->audio->samples_this_frame *
- sizeof (gint16) * dvdec->decoder->audio->num_channels;
- GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
-
- a_ptr = (gint16 *) GST_BUFFER_DATA (outbuf);
-
- for (i = 0; i < dvdec->decoder->audio->samples_this_frame; i++) {
- for (j = 0; j < dvdec->decoder->audio->num_channels; j++) {
- *(a_ptr++) = dvdec->audio_buffers[j][i];
- }
- }
- gst_dvdec_push (dvdec, outbuf, dvdec->audiosrcpad, ts);
- }
+skip:
+ dvdec->video_offset++;
- if (GST_PAD_IS_LINKED (dvdec->videosrcpad)) {
- guint8 *outframe;
- guint8 *outframe_ptrs[3];
- gint outframe_pitches[3];
-
- 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];
- }
+done:
+ gst_buffer_unmap (buf, &map);
+ gst_buffer_unref (buf);
- dv_decode_full_frame (dvdec->decoder, GST_BUFFER_DATA (buf),
- dvdec->space, outframe_ptrs, outframe_pitches);
+ return ret;
- gst_dvdec_push (dvdec, outbuf, dvdec->videosrcpad, ts);
+ /* ERRORS */
+wrong_size:
+ {
+ GST_ELEMENT_ERROR (dvdec, STREAM, DECODE,
+ (NULL), ("Input buffer too small"));
+ ret = GST_FLOW_ERROR;
+ goto done;
}
-
- if ((dvdec->end_position != -1) &&
- (dvdec->next_ts >= dvdec->end_position) &&
- !dvdec->loop) {
- gst_element_set_eos (GST_ELEMENT (dvdec));
+parse_header_error:
+ {
+ GST_ELEMENT_ERROR (dvdec, STREAM, DECODE,
+ (NULL), ("Error parsing DV header"));
+ ret = GST_FLOW_ERROR;
+ goto done;
}
-
- if (dvdec->need_discont) {
- dvdec->need_discont = FALSE;
+not_negotiated:
+ {
+ GST_DEBUG_OBJECT (dvdec, "could not negotiate output");
+ ret = GST_FLOW_NOT_NEGOTIATED;
+ goto done;
+ }
+no_buffer:
+ {
+ GST_DEBUG_OBJECT (dvdec, "could not allocate buffer");
+ goto done;
}
- gst_buffer_unref (buf);
+dropping:
+ {
+ GST_DEBUG_OBJECT (dvdec,
+ "dropping buffer since it's out of the configured segment");
+ goto done;
+ }
}
-static GstElementStateReturn
-gst_dvdec_change_state (GstElement *element)
+static GstStateChangeReturn
+gst_dvdec_change_state (GstElement * element, GstStateChange transition)
{
GstDVDec *dvdec = GST_DVDEC (element);
-
- switch (GST_STATE_TRANSITION (element)) {
- case GST_STATE_NULL_TO_READY:
+ GstStateChangeReturn ret;
+
+
+ switch (transition) {
+ case GST_STATE_CHANGE_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 = dvdec->quality;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ dvdec->decoder =
+ dv_decoder_new (0, dvdec->clamp_luma, dvdec->clamp_chroma);
+ dvdec->decoder->quality = qualities[dvdec->quality];
+ dv_set_error_log (dvdec->decoder, NULL);
+ gst_video_info_init (&dvdec->vinfo);
+ gst_segment_init (&dvdec->segment, GST_FORMAT_UNDEFINED);
+ dvdec->src_negotiated = FALSE;
+ dvdec->sink_negotiated = FALSE;
+ dvdec->need_segment = FALSE;
+ /*
+ * Enable this function call when libdv2 0.100 or higher is more
+ * common
+ */
+ /* dv_set_quality (dvdec->decoder, qualities [dvdec->quality]); */
break;
- case GST_STATE_PAUSED_TO_PLAYING:
+ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ break;
+ default:
break;
- case GST_STATE_PLAYING_TO_PAUSED:
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
- case GST_STATE_PAUSED_TO_READY:
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
dv_decoder_free (dvdec->decoder);
dvdec->decoder = NULL;
- dvdec->found_header = FALSE;
- gst_bytestream_destroy (dvdec->bs);
+ if (dvdec->pool) {
+ gst_buffer_pool_set_active (dvdec->pool, FALSE);
+ gst_object_unref (dvdec->pool);
+ dvdec->pool = NULL;
+ }
break;
- case GST_STATE_READY_TO_NULL:
+ case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
-
- parent_class->change_state (element);
-
- return GST_STATE_SUCCESS;
+ 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)
+gst_dvdec_set_property (GObject * object, guint prop_id, const GValue * value,
+ GParamSpec * pspec)
{
- GstDVDec *dvdec;
+ GstDVDec *dvdec = GST_DVDEC (object);
- /* It's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_DVDEC(object));
-
- /* Get a pointer of the right type. */
- dvdec = GST_DVDEC(object);
-
- /* Check the argument id to see which argument we're setting. */
switch (prop_id) {
- case ARG_CLAMP_LUMA:
+ case PROP_CLAMP_LUMA:
dvdec->clamp_luma = g_value_get_boolean (value);
break;
- case ARG_CLAMP_CHROMA:
+ case PROP_CLAMP_CHROMA:
dvdec->clamp_chroma = g_value_get_boolean (value);
break;
- case ARG_QUALITY:
- dvdec->quality = g_value_get_flags (value);
+ case PROP_QUALITY:
+ dvdec->quality = g_value_get_enum (value);
+ if ((dvdec->quality < 0) || (dvdec->quality > 5))
+ dvdec->quality = 0;
+ break;
+ case PROP_DECODE_NTH:
+ dvdec->drop_factor = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
-/* The set function is simply the inverse of the get fuction. */
static void
-gst_dvdec_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+gst_dvdec_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
- GstDVDec *dvdec;
-
- /* It's not null if we got it, but it might not be ours */
- g_return_if_fail(GST_IS_DVDEC(object));
- dvdec = GST_DVDEC(object);
+ GstDVDec *dvdec = GST_DVDEC (object);
switch (prop_id) {
- case ARG_CLAMP_LUMA:
+ case PROP_CLAMP_LUMA:
g_value_set_boolean (value, dvdec->clamp_luma);
break;
- case ARG_CLAMP_CHROMA:
+ case PROP_CLAMP_CHROMA:
g_value_set_boolean (value, dvdec->clamp_chroma);
break;
- case ARG_QUALITY:
- g_value_set_flags (value, dvdec->quality);
+ case PROP_QUALITY:
+ g_value_set_enum (value, dvdec->quality);
+ break;
+ case PROP_DECODE_NTH:
+ g_value_set_int (value, dvdec->drop_factor);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
-
-/* This is the entry into the plugin itself. When the plugin loads,
- * this function is called to register everything that the plugin provides.
- */
-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;
-
- return TRUE;
-}
-
-GST_PLUGIN_DEFINE (
- GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "dvdec",
- "Uses libdv to decode DV video (libdv.sourceforge.net)",
- plugin_init,
- VERSION,
- "LGPL",
- GST_PACKAGE,
- GST_ORIGIN
-);
projects / platform / upstream / gst-plugins-good.git / blobdiff