/* 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
#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_NORMAL_PAR_X 16
-#define PAL_NORMAL_PAR_Y 15
-#define PAL_WIDE_PAR_X 64
-#define PAL_WIDE_PAR_Y 45
+#define PAL_FRAMERATE_NUMERATOR 25
+#define PAL_FRAMERATE_DENOMINATOR 1
-#define NTSC_NORMAL_PAR_X 80
-#define NTSC_NORMAL_PAR_Y 89
-#define NTSC_WIDE_PAR_X 320
-#define NTSC_WIDE_PAR_Y 267
+#define PAL_NORMAL_PAR_X 59
+#define PAL_NORMAL_PAR_Y 54
+#define PAL_WIDE_PAR_X 118
+#define PAL_WIDE_PAR_Y 81
-/* 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 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
-/* Arguments are identified the same way, but cannot be zero, so you
- * must leave the ARG_0 entry in as a placeholder.
- */
+GST_DEBUG_CATEGORY_STATIC (dvdec_debug);
+#define GST_CAT_DEFAULT dvdec_debug
+
enum
{
- ARG_0,
- ARG_CLAMP_LUMA,
- ARG_CLAMP_CHROMA,
- ARG_QUALITY,
- ARG_DECODE_NTH
- /* FILL ME */
+ PROP_0,
+ PROP_CLAMP_LUMA,
+ PROP_CLAMP_CHROMA,
+ PROP_QUALITY,
+ PROP_DECODE_NTH
};
const gint qualities[] = {
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)
- " }, "
- "pixel-aspect-ratio=(fraction) { "
- G_STRINGIFY (PAL_NORMAL_PAR_X) "/" G_STRINGIFY (PAL_NORMAL_PAR_Y) ","
- 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)
- //" }; "
- "video/x-raw-rgb, "
- "bpp = (int) 32, "
- "depth = (int) 24, "
- "endianness = (int) " G_STRINGIFY (G_BIG_ENDIAN) ", "
- "red_mask = (int) 0x00ff0000, "
- "green_mask = (int) 0x0000ff00, "
- "blue_mask = (int) 0x000000ff, "
- "width = (int) 720, "
- "height = (int) { "
- G_STRINGIFY (NTSC_HEIGHT) ", " G_STRINGIFY (PAL_HEIGHT)
- " }, "
- "pixel-aspect-ratio=(fraction) { "
- G_STRINGIFY (PAL_NORMAL_PAR_X) "/" G_STRINGIFY (PAL_NORMAL_PAR_Y) ","
- 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)
- //" }; "
- "video/x-raw-rgb, "
- "bpp = (int) 24, "
- "depth = (int) 24, "
- "endianness = (int) " G_STRINGIFY (G_BIG_ENDIAN) ", "
- "red_mask = (int) 0x00ff0000, "
- "green_mask = (int) 0x0000ff00, "
- "blue_mask = (int) 0x000000ff, "
- "width = (int) 720, "
- "height = (int) { "
- G_STRINGIFY (NTSC_HEIGHT) ", " G_STRINGIFY (PAL_HEIGHT)
- " }, "
- "pixel-aspect-ratio=(fraction) { "
- G_STRINGIFY (PAL_NORMAL_PAR_X) "/" G_STRINGIFY (PAL_NORMAL_PAR_Y) ","
- 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)
- //" }"
- )
+ GST_STATIC_CAPS ("video/x-dv, systemstream = (boolean) false")
);
-static GstStaticPadTemplate audio_src_temp = GST_STATIC_PAD_TEMPLATE ("audio",
+static GstStaticPadTemplate src_temp = GST_STATIC_PAD_TEMPLATE ("src",
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, 4}, "
- "endianness = (int) " G_STRINGIFY (G_LITTLE_ENDIAN) ", "
- "rate = (int) { 32000, 44100, 48000 }")
+ 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 GEnumValue values[] = {
- {0, "DV_QUALITY_FASTEST", "Fastest decoding, low-quality mono"},
- {1, "DV_QUALITY_AC_1", "Mono decoding using the first AC coefficient"},
- {2, "DV_QUALITY_AC_2", "Highest quality mono decoding"},
- {3, "DV_QUALITY_DC|DV_QUALITY_COLOUR", "Fastest colour decoding"},
- {4, "DV_QUALITY_AC_1|DV_QUALITY_COLOUR",
- "Colour, using only the first AC coefficient"},
- {5, "DV_QUALITY_BEST", "Highest quality colour decoding"},
+ {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},
};
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);
+#define gst_dvdec_parent_class parent_class
+G_DEFINE_TYPE (GstDVDec, gst_dvdec, GST_TYPE_ELEMENT);
-static GstPadLinkReturn gst_dvdec_video_link (GstPad * pad,
- const GstCaps * caps);
-static GstCaps *gst_dvdec_video_getcaps (GstPad * pad);
+static GstFlowReturn gst_dvdec_chain (GstPad * pad, GstObject * parent,
+ GstBuffer * buffer);
+static gboolean gst_dvdec_sink_event (GstPad * pad, GstObject * parent,
+ GstEvent * event);
-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 GstStateChangeReturn gst_dvdec_change_state (GstElement * element,
+ GstStateChange transition);
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;
-
-/* 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 }; */
-
-/* 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 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);
-}
-
-/* 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)
{
- /* 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);
+ gobject_class->set_property = gst_dvdec_set_property;
+ gobject_class->get_property = gst_dvdec_get_property;
- 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_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_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DECODE_NTH,
+ 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));
+ 1, G_MAXINT, DV_DEFAULT_DECODE_NTH,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- gobject_class->set_property = gst_dvdec_set_property;
- gobject_class->get_property = gst_dvdec_get_property;
+ 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));
- gstelement_class->change_state = gst_dvdec_change_state;
+ 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>");
- /* table initialization, only do once */
- dv_init (0, 0);
+ 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)
{
- 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_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->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);
- 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->bs = NULL;
- dvdec->length = 0;
- dvdec->next_ts = 0LL;
- dvdec->end_position = -1LL;
- dvdec->need_discont = FALSE;
- dvdec->new_media = 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_DEFAULT_QUALITY;
- dvdec->loop = FALSE;
-
- for (i = 0; i < 4; i++) {
- dvdec->audio_buffers[i] =
- (gint16 *) g_malloc (DV_AUDIO_MAX_SAMPLES * sizeof (gint16));
- }
-}
-
-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,
- GST_FORMAT_DEFAULT,
- 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;
+ GstStructure *s;
+ const GValue *par = NULL, *rate = NULL;
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
- if (dvdec->length == 0)
- return FALSE;
+ /* first parse the caps */
+ s = gst_caps_get_structure (caps, 0);
- if (dvdec->decoder == NULL)
- return FALSE;
+ /* 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");
- switch (src_format) {
- case GST_FORMAT_BYTES:
- switch (*dest_format) {
- case GST_FORMAT_BYTES:
- *dest_value = src_value;
- break;
- case GST_FORMAT_DEFAULT:
- case GST_FORMAT_TIME:
- *dest_format = GST_FORMAT_TIME;
- if (pad == dvdec->videosrcpad)
- *dest_value = src_value * GST_SECOND /
- (720 * dvdec->height * dvdec->bpp * dvdec->framerate /
- GST_SECOND);
- else if (pad == dvdec->audiosrcpad)
- *dest_value = src_value * GST_SECOND /
- (2 * dvdec->frequency * dvdec->channels);
- break;
- default:
- res = FALSE;
- }
- break;
- case GST_FORMAT_TIME:
- switch (*dest_format) {
- case GST_FORMAT_BYTES:
- if (pad == dvdec->videosrcpad)
- *dest_value = src_value * 720 * dvdec->height * dvdec->bpp *
- dvdec->framerate / GST_SECOND;
- else if (pad == dvdec->audiosrcpad)
- *dest_value = 2 * src_value * dvdec->frequency *
- dvdec->channels / GST_SECOND;
- break;
- case GST_FORMAT_TIME:
- case GST_FORMAT_DEFAULT:
- *dest_format = GST_FORMAT_TIME;
- *dest_value = src_value;
- break;
- default:
- res = FALSE;
- }
- break;
- default:
- res = FALSE;
+ 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;
}
- return res;
-}
+ 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;
-static gboolean
-gst_dvdec_sink_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
- GstFormat * dest_format, gint64 * dest_value)
-{
- gboolean res = TRUE;
- GstDVDec *dvdec;
-
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
+ return TRUE;
- if (dvdec->length == 0)
+ /* ERRORS */
+no_framerate:
+ {
+ GST_DEBUG_OBJECT (dvdec, "no framerate specified in caps");
return FALSE;
-
- if (*dest_format == GST_FORMAT_DEFAULT)
- *dest_format = GST_FORMAT_TIME;
-
- 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;
- }
- case GST_FORMAT_BYTES:
- *dest_value = src_value;
- 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;
- }
- case GST_FORMAT_TIME:
- *dest_value = src_value;
- break;
- default:
- res = FALSE;
- }
- break;
- default:
- res = FALSE;
}
- return res;
}
-static const GstQueryType *
-gst_dvdec_get_src_query_types (GstPad * pad)
+static void
+gst_dvdec_negotiate_pool (GstDVDec * dec, GstCaps * caps, GstVideoInfo * info)
{
- static const GstQueryType src_query_types[] = {
- GST_QUERY_TOTAL,
- GST_QUERY_POSITION,
- 0
- };
-
- return src_query_types;
-}
+ GstQuery *query;
+ GstBufferPool *pool;
+ guint size, min, max;
+ GstStructure *config;
-static gboolean
-gst_dvdec_src_query (GstPad * pad, GstQueryType type,
- GstFormat * format, gint64 * value)
-{
- gboolean res = TRUE;
- GstDVDec *dvdec;
+ /* find a pool for the negotiated caps now */
+ query = gst_query_new_allocation (caps, TRUE);
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
-
- switch (type) {
- case GST_QUERY_TOTAL:
- switch (*format) {
- default:
- {
- guint64 len;
- GstFormat tmp_format;
-
- if (!dvdec->bs)
- return FALSE;
-
- 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 (!gst_pad_peer_query (dec->srcpad, query)) {
+ GST_DEBUG_OBJECT (dec, "didn't get downstream ALLOCATION hints");
}
- 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)
-{
- guint32 remaining;
- GstEvent *event;
- GstEventType type;
-
- gst_bytestream_get_status (dvdec->bs, &remaining, &event);
+ 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;
+ }
- type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
+ if (pool == NULL) {
+ /* we did not get a pool, make one ourselves then */
+ pool = gst_video_buffer_pool_new ();
+ }
- switch (type) {
- case GST_EVENT_FLUSH:
- 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));
- }
- 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;
- break;
- }
- default:
- return gst_pad_event_default (dvdec->sinkpad, event);
- break;
+ if (dec->pool) {
+ gst_buffer_pool_set_active (dec->pool, FALSE);
+ gst_object_unref (dec->pool);
}
- gst_event_unref (event);
- return TRUE;
-}
+ dec->pool = pool;
-static gboolean
-gst_dvdec_handle_src_event (GstPad * pad, GstEvent * event)
-{
- gboolean res = TRUE;
- GstDVDec *dvdec;
+ config = gst_buffer_pool_get_config (pool);
+ gst_buffer_pool_config_set_params (config, caps, size, min, max);
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
+ 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);
- 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;
- }
+ /* and activate */
+ gst_buffer_pool_set_active (pool, TRUE);
- dvdec->end_position = position;
- dvdec->loop = GST_EVENT_SEEK_TYPE (event) & GST_SEEK_FLAG_SEGMENT_LOOP;
- }
- case GST_EVENT_SEEK:
- {
- 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;
- break;
- }
- default:
- res = FALSE;
- break;
- }
- gst_event_unref (event);
- return res;
+ gst_query_unref (query);
}
-static GstCaps *
-gst_dvdec_video_getcaps (GstPad * pad)
+static gboolean
+gst_dvdec_src_negotiate (GstDVDec * dvdec)
{
- 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;
- gint par_x, par_y;
+ GstCaps *othercaps;
+ /* no PAR was specified in input, derive from encoded data */
+ if (dvdec->need_par) {
if (dvdec->PAL) {
if (dvdec->wide) {
- par_x = PAL_WIDE_PAR_X;
- par_y = PAL_WIDE_PAR_Y;
+ dvdec->par_x = PAL_WIDE_PAR_X;
+ dvdec->par_y = PAL_WIDE_PAR_Y;
} else {
- par_x = PAL_NORMAL_PAR_X;
- par_y = PAL_NORMAL_PAR_Y;
+ dvdec->par_x = PAL_NORMAL_PAR_X;
+ dvdec->par_y = PAL_NORMAL_PAR_Y;
}
} else {
if (dvdec->wide) {
- par_x = NTSC_WIDE_PAR_X;
- par_y = NTSC_WIDE_PAR_Y;
+ dvdec->par_x = NTSC_WIDE_PAR_X;
+ dvdec->par_y = NTSC_WIDE_PAR_Y;
} else {
- par_x = NTSC_NORMAL_PAR_X;
- par_y = NTSC_NORMAL_PAR_Y;
+ dvdec->par_x = NTSC_NORMAL_PAR_X;
+ dvdec->par_y = NTSC_NORMAL_PAR_Y;
}
}
- /* 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 / dvdec->drop_factor,
- "pixel-aspect-ratio", GST_TYPE_FRACTION, par_x, par_y, NULL);
- }
+ GST_DEBUG_OBJECT (dvdec, "Inferred PAR %d/%d from video format",
+ dvdec->par_x, dvdec->par_y);
}
- return caps;
-}
-
-static GstPadLinkReturn
-gst_dvdec_video_link (GstPad * pad, const GstCaps * caps)
-{
- GstDVDec *dvdec;
- GstStructure *structure;
- guint32 fourcc;
- gint height;
- gdouble framerate;
+ /* 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;
+ }
- dvdec = GST_DVDEC (gst_pad_get_parent (pad));
+ othercaps = gst_video_info_to_caps (&dvdec->vinfo);
+ gst_pad_set_caps (dvdec->srcpad, othercaps);
- /* if we did not find a header yet, return delayed */
- if (!dvdec->found_header) {
- return GST_PAD_LINK_DELAYED;
- }
+ gst_dvdec_negotiate_pool (dvdec, othercaps, &dvdec->vinfo);
+ gst_caps_unref (othercaps);
- structure = gst_caps_get_structure (caps, 0);
+ dvdec->src_negotiated = TRUE;
- if (!gst_structure_get_int (structure, "height", &height) ||
- !gst_structure_get_double (structure, "framerate", &framerate))
- return GST_PAD_LINK_REFUSED;
+ return TRUE;
+}
- /* 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;
+static gboolean
+gst_dvdec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
+{
+ GstDVDec *dvdec;
+ gboolean res = TRUE;
- if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") == 0) {
- gint bpp;
+ dvdec = GST_DVDEC (parent);
- 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 {
- if (!gst_structure_get_fourcc (structure, "format", &fourcc))
- return GST_PAD_LINK_REFUSED;
+ switch (GST_EVENT_TYPE (event)) {
+ 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->space = e_dv_color_yuv;
- dvdec->bpp = 2;
- }
+ gst_event_parse_segment (event, &segment);
- return GST_PAD_LINK_OK;
-}
+ GST_DEBUG_OBJECT (dvdec, "Got SEGMENT %" GST_SEGMENT_FORMAT, &segment);
-static void
-gst_dvdec_push (GstDVDec * dvdec, GstBuffer * outbuf, GstPad * pad,
- GstClockTime ts)
-{
- if ((dvdec->need_discont) || (dvdec->new_media)) {
- GstEvent *discont;
+ 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_CAPS:
+ {
+ GstCaps *caps;
- discont = gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME, ts, NULL);
- GST_EVENT_DISCONT_NEW_MEDIA (discont) = dvdec->new_media;
+ gst_event_parse_caps (event, &caps);
+ res = gst_dvdec_sink_setcaps (dvdec, caps);
+ gst_event_unref (event);
+ event = NULL;
+ break;
+ }
- gst_pad_push (pad, GST_DATA (discont));
+ default:
+ break;
}
- gst_pad_push (pad, GST_DATA (outbuf));
+ if (event)
+ res = gst_pad_push_event (dvdec->srcpad, event);
- 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)));
- }
+ return res;
}
-static void
-gst_dvdec_loop (GstElement * element)
+static GstFlowReturn
+gst_dvdec_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstDVDec *dvdec;
- GstBuffer *buf, *outbuf;
guint8 *inframe;
- gint height;
- guint32 length, got_bytes;
- GstClockTime ts, duration;
- gdouble fps;
- gboolean wide;
-
- 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;
- }
+ 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);
- /* after parsing the header we know the length of the data */
- dvdec->PAL = dv_system_50_fields (dvdec->decoder);
- dvdec->found_header = TRUE;
+ /* 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;
- fps = (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);
+ dv_parse_packs (dvdec->decoder, inframe);
- if (length != dvdec->length) {
- dvdec->length = length;
- gst_bytestream_size_hint (dvdec->bs, length);
- }
+ if (dvdec->video_offset % dvdec->drop_factor != 0)
+ goto skip;
- /* 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;
+ /* renegotiate on change */
+ if (PAL != dvdec->PAL || wide != dvdec->wide) {
+ dvdec->src_negotiated = FALSE;
+ dvdec->PAL = PAL;
+ dvdec->wide = wide;
}
- 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);
- }
+ dvdec->height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
- num_samples = dv_get_num_samples (dvdec->decoder);
+ dvdec->interlaced = !dv_is_progressive (dvdec->decoder);
- if (num_samples) {
- gint16 *a_ptr;
- gint i, j;
+ /* negotiate if not done yet */
+ if (!dvdec->src_negotiated) {
+ if (!gst_dvdec_src_negotiate (dvdec))
+ goto not_negotiated;
+ }
- 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));
+ if (gst_pad_check_reconfigure (dvdec->srcpad)) {
+ GstCaps *caps;
- a_ptr = (gint16 *) GST_BUFFER_DATA (outbuf);
+ caps = gst_pad_get_current_caps (dvdec->srcpad);
+ gst_dvdec_negotiate_pool (dvdec, caps, &dvdec->vinfo);
+ gst_caps_unref (caps);
+ }
- 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];
- }
- }
+ if (dvdec->need_segment) {
+ gst_pad_push_event (dvdec->srcpad, gst_event_new_segment (&dvdec->segment));
+ dvdec->need_segment = FALSE;
+ }
- 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;
+ ret = gst_buffer_pool_acquire_buffer (dvdec->pool, &outbuf, NULL);
+ if (G_UNLIKELY (ret != GST_FLOW_OK))
+ goto no_buffer;
- gst_dvdec_push (dvdec, outbuf, dvdec->audiosrcpad, ts);
- }
- } else {
- dvdec->frequency = dv_get_frequency (dvdec->decoder);
- dvdec->channels = dv_get_num_channels (dvdec->decoder);
- }
+ gst_video_frame_map (&frame, &dvdec->vinfo, outbuf, GST_MAP_WRITE);
- if (GST_PAD_IS_LINKED (dvdec->videosrcpad)) {
- guint8 *outframe;
- guint8 *outframe_ptrs[3];
- gint outframe_pitches[3];
+ outframe_ptrs[0] = GST_VIDEO_FRAME_COMP_DATA (&frame, 0);
+ outframe_pitches[0] = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 0);
- dvdec->framecount++;
- if (dvdec->framecount < dvdec->drop_factor) {
- /* don't decode */
- goto end;
- }
- dvdec->framecount = 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);
- if ((dvdec->framerate != fps) || (dvdec->height != height)
- || dvdec->wide != wide) {
- dvdec->height = height;
- dvdec->framerate = fps;
- dvdec->wide = wide;
+ outframe_pitches[1] = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 1);
+ outframe_pitches[2] = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 2);
+ }
- if (GST_PAD_LINK_FAILED (gst_pad_renegotiate (dvdec->videosrcpad))) {
- GST_ELEMENT_ERROR (dvdec, CORE, NEGOTIATION, (NULL), (NULL));
- return;
- }
- }
+ GST_DEBUG_OBJECT (dvdec, "decoding and pushing buffer");
+ dv_decode_full_frame (dvdec->decoder, inframe,
+ e_dv_color_yuv, outframe_ptrs, outframe_pitches);
- outbuf = gst_buffer_new_and_alloc ((720 * height) * dvdec->bpp);
+ gst_video_frame_unmap (&frame);
- outframe = GST_BUFFER_DATA (outbuf);
+ GST_BUFFER_FLAG_UNSET (outbuf, GST_VIDEO_BUFFER_FLAG_TFF);
- outframe_ptrs[0] = outframe;
- outframe_pitches[0] = 720 * dvdec->bpp;
+ 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;
- /* 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;
+ ret = gst_pad_push (dvdec->srcpad, outbuf);
- outframe_pitches[1] = height / 2;
- outframe_pitches[2] = outframe_pitches[1];
- }
+skip:
+ dvdec->video_offset++;
- dv_decode_full_frame (dvdec->decoder, GST_BUFFER_DATA (buf),
- dvdec->space, outframe_ptrs, outframe_pitches);
+done:
+ gst_buffer_unmap (buf, &map);
+ gst_buffer_unref (buf);
- GST_BUFFER_TIMESTAMP (outbuf) = ts;
- GST_BUFFER_DURATION (outbuf) = duration * dvdec->drop_factor;
+ return ret;
- gst_dvdec_push (dvdec, outbuf, dvdec->videosrcpad, ts);
- } else {
- dvdec->height = height;
- dvdec->framerate = fps;
- dvdec->wide = wide;
+ /* ERRORS */
+wrong_size:
+ {
+ GST_ELEMENT_ERROR (dvdec, STREAM, DECODE,
+ (NULL), ("Input buffer too small"));
+ ret = GST_FLOW_ERROR;
+ goto done;
}
-
-end:
- 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;
+ }
+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;
}
- dvdec->need_discont = FALSE;
- dvdec->new_media = FALSE;
-
- 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);
+ GstStateChangeReturn ret;
- switch (GST_STATE_TRANSITION (element)) {
- case GST_STATE_NULL_TO_READY:
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
break;
- case GST_STATE_READY_TO_PAUSED:
- dvdec->bs = gst_bytestream_new (dvdec->sinkpad);
+ 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];
- dvdec->audio_offset = 0;
- dvdec->framecount = 0;
+ 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;
- case GST_STATE_PLAYING_TO_PAUSED:
+ default:
break;
- case GST_STATE_PAUSED_TO_READY:
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
dv_decoder_free (dvdec->decoder);
dvdec->decoder = NULL;
- dvdec->found_header = FALSE;
- gst_bytestream_destroy (dvdec->bs);
- dvdec->bs = NULL;
+ 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;
}
-
- 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;
-
- /* It's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_DVDEC (object));
+ GstDVDec *dvdec = GST_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:
+ case PROP_QUALITY:
dvdec->quality = g_value_get_enum (value);
if ((dvdec->quality < 0) || (dvdec->quality > 5))
dvdec->quality = 0;
break;
- case ARG_DECODE_NTH:
+ case PROP_DECODE_NTH:
dvdec->drop_factor = g_value_get_int (value);
break;
default:
}
}
-/* 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)
{
- 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:
+ case PROP_QUALITY:
g_value_set_enum (value, dvdec->quality);
break;
- case ARG_DECODE_NTH:
+ case PROP_DECODE_NTH:
g_value_set_int (value, dvdec->drop_factor);
break;
default:
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