2002-01-26 02:48:47 +00:00
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/* GStreamer
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2001-12-23 16:42:33 +00:00
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <string.h>
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/* First, include the header file for the plugin, to bring in the
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* object definition and other useful things.
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*/
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#include "gstdvdec.h"
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2002-01-26 02:48:47 +00:00
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#define NTSC_HEIGHT 480
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#define NTSC_BUFFER 120000
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#define PAL_HEIGHT 576
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#define PAL_BUFFER 144000
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2001-12-23 16:42:33 +00:00
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/* The ElementDetails structure gives a human-readable description
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* of the plugin, as well as author and version data.
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*/
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static GstElementDetails dvdec_details = {
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"DV (smpte314) decoder plugin",
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"Decoder/DV",
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"Uses libdv to decode DV video (libdv.sourceforge.net)",
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VERSION,
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2002-01-26 02:48:47 +00:00
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"Erik Walthinsen <omega@cse.ogi.edu>\n"
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"Wim Taymans <wim.taymans@tvd.be>",
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"(C) 2001-2002",
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2001-12-23 16:42:33 +00:00
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};
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2002-01-26 02:48:47 +00:00
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2001-12-23 16:42:33 +00:00
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/* These are the signals that this element can fire. They are zero-
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* based because the numbers themselves are private to the object.
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* LAST_SIGNAL is used for initialization of the signal array.
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*/
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enum {
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ASDF,
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/* FILL ME */
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LAST_SIGNAL
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};
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/* Arguments are identified the same way, but cannot be zero, so you
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* must leave the ARG_0 entry in as a placeholder.
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*/
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enum {
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ARG_0,
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/* FILL ME */
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};
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/* The PadFactory structures describe what pads the element has or
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* can have. They can be quite complex, but for this dvdec plugin
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* they are rather simple.
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*/
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2002-04-11 20:42:25 +00:00
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GST_PAD_TEMPLATE_FACTORY (sink_temp,
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2001-12-23 16:42:33 +00:00
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"sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"dv_dec_sink",
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"video/dv",
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2002-06-15 22:30:58 +00:00
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"format", GST_PROPS_LIST (
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GST_PROPS_STRING ("PAL"),
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GST_PROPS_STRING ("NTSC")
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)
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2001-12-23 16:42:33 +00:00
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)
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)
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2002-04-11 20:42:25 +00:00
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GST_PAD_TEMPLATE_FACTORY (video_src_temp,
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2001-12-23 16:42:33 +00:00
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"video",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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2002-01-26 02:48:47 +00:00
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GST_CAPS_NEW (
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"dv_dec_src",
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"video/raw",
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"format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('Y','U','Y','2')),
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"width", GST_PROPS_INT (720),
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"height", GST_PROPS_INT_RANGE (NTSC_HEIGHT, PAL_HEIGHT)
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),
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2001-12-23 16:42:33 +00:00
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GST_CAPS_NEW (
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"dv_dec_src",
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"video/raw",
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"format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
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2002-06-21 18:32:46 +00:00
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"bpp", GST_PROPS_INT(32),
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"depth", GST_PROPS_INT(32),
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2002-06-16 20:49:22 +00:00
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"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
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2002-06-21 18:32:46 +00:00
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"red_mask", GST_PROPS_INT(0x00ff0000),
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"green_mask", GST_PROPS_INT(0x0000ff00),
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"blue_mask", GST_PROPS_INT(0x000000ff),
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2001-12-23 16:42:33 +00:00
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"width", GST_PROPS_INT (720),
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2002-01-26 02:48:47 +00:00
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"height", GST_PROPS_INT_RANGE (NTSC_HEIGHT, PAL_HEIGHT)
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2002-06-16 20:49:22 +00:00
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),
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GST_CAPS_NEW (
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"dv_dec_src",
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"video/raw",
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"format", GST_PROPS_FOURCC(GST_MAKE_FOURCC('R','G','B',' ')),
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2002-06-21 18:32:46 +00:00
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"bpp", GST_PROPS_INT(24),
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"depth", GST_PROPS_INT(24),
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2002-06-16 20:49:22 +00:00
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"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN),
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2002-06-21 18:32:46 +00:00
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"red_mask", GST_PROPS_INT(0x0000ff),
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"green_mask", GST_PROPS_INT(0x00ff00),
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"blue_mask", GST_PROPS_INT(0xff0000),
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2002-06-16 20:49:22 +00:00
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"width", GST_PROPS_INT (720),
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"height", GST_PROPS_INT_RANGE (NTSC_HEIGHT, PAL_HEIGHT)
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2001-12-23 16:42:33 +00:00
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)
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)
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2002-04-11 20:42:25 +00:00
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GST_PAD_TEMPLATE_FACTORY ( audio_src_temp,
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2001-12-23 16:42:33 +00:00
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"audio",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"arts_sample",
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"audio/raw",
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (0),
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"depth", GST_PROPS_INT (16),
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"width", GST_PROPS_INT (16),
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"signed", GST_PROPS_BOOLEAN (TRUE),
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"channels", GST_PROPS_INT (2),
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"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN)
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)
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)
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2002-06-15 14:32:35 +00:00
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/* typefind stuff */
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static GstCaps*
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dv_type_find (GstBuffer *buf, gpointer private)
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{
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gulong head = GULONG_FROM_BE(*((gulong *)GST_BUFFER_DATA(buf)));
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GstCaps *new = NULL;
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/* check for DIF and DV flag */
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if ((head & 0xffffff00) == 0x1f070000 && !(GST_BUFFER_DATA(buf)[4] & 0x01)) {
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gchar *format;
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if ((head & 0x000000ff) & 0x80)
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format = "PAL";
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else
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format = "NTSC";
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new = GST_CAPS_NEW ("dv_type_find",
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"video/dv",
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"format", GST_PROPS_STRING (format)
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);
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}
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return new;
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}
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static GstTypeDefinition dv_definition = {
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"dv_video/dv", "video/dv", ".dv", dv_type_find
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};
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2001-12-23 16:42:33 +00:00
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/* A number of functon prototypes are given so we can refer to them later. */
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2002-06-16 14:45:46 +00:00
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static void gst_dvdec_class_init (GstDVDecClass *klass);
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static void gst_dvdec_init (GstDVDec *dvdec);
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2001-12-23 16:42:33 +00:00
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2002-06-16 14:45:46 +00:00
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static gboolean gst_dvdec_src_query (GstPad *pad, GstPadQueryType type,
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GstFormat *format, gint64 *value);
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static gboolean gst_dvdec_sink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
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GstFormat *dest_format, gint64 *dest_value);
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static gboolean gst_dvdec_src_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
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GstFormat *dest_format, gint64 *dest_value);
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2002-06-15 14:32:35 +00:00
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2002-06-16 14:45:46 +00:00
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static gboolean gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event);
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static void gst_dvdec_loop (GstElement *element);
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2001-12-23 16:42:33 +00:00
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2002-01-26 02:48:47 +00:00
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static GstElementStateReturn
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2002-06-16 14:45:46 +00:00
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gst_dvdec_change_state (GstElement *element);
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2002-01-26 02:48:47 +00:00
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2002-06-16 14:45:46 +00:00
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static void gst_dvdec_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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static void gst_dvdec_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec);
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2001-12-23 16:42:33 +00:00
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/* The parent class pointer needs to be kept around for some object
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* operations.
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*/
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static GstElementClass *parent_class = NULL;
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/* This array holds the ids of the signals registered for this object.
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* The array indexes are based on the enum up above.
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*/
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2002-03-19 04:10:05 +00:00
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/*static guint gst_dvdec_signals[LAST_SIGNAL] = { 0 }; */
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2001-12-23 16:42:33 +00:00
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/* This function is used to register and subsequently return the type
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* identifier for this object class. On first invocation, it will
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* register the type, providing the name of the class, struct sizes,
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* and pointers to the various functions that define the class.
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*/
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GType
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2002-01-26 02:48:47 +00:00
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gst_dvdec_get_type (void)
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2001-12-23 16:42:33 +00:00
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{
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static GType dvdec_type = 0;
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if (!dvdec_type) {
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static const GTypeInfo dvdec_info = {
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2002-01-26 02:48:47 +00:00
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sizeof (GstDVDecClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_dvdec_class_init,
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2001-12-23 16:42:33 +00:00
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NULL,
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NULL,
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2002-01-26 02:48:47 +00:00
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sizeof (GstDVDec),
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2001-12-23 16:42:33 +00:00
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0,
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2002-01-26 02:48:47 +00:00
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(GInstanceInitFunc) gst_dvdec_init,
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2001-12-23 16:42:33 +00:00
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};
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2002-01-26 02:48:47 +00:00
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dvdec_type = g_type_register_static (GST_TYPE_ELEMENT, "GstDVDec", &dvdec_info, 0);
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2001-12-23 16:42:33 +00:00
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}
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return dvdec_type;
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}
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/* In order to create an instance of an object, the class must be
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* initialized by this function. GObject will take care of running
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* it, based on the pointer to the function provided above.
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*/
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static void
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gst_dvdec_class_init (GstDVDecClass *klass)
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{
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/* Class pointers are needed to supply pointers to the private
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* implementations of parent class methods.
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*/
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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/* Since the dvdec class contains the parent classes, you can simply
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* cast the pointer to get access to the parent classes.
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*/
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2002-01-26 02:48:47 +00:00
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gobject_class = (GObjectClass*) klass;
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gstelement_class = (GstElementClass*) klass;
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2001-12-23 16:42:33 +00:00
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/* The parent class is needed for class method overrides. */
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2002-01-26 02:48:47 +00:00
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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2001-12-23 16:42:33 +00:00
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gobject_class->set_property = gst_dvdec_set_property;
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gobject_class->get_property = gst_dvdec_get_property;
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2002-01-26 02:48:47 +00:00
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gstelement_class->change_state = gst_dvdec_change_state;
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2001-12-23 16:42:33 +00:00
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2002-03-19 04:10:05 +00:00
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/* table initialization, only do once */
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2002-04-26 13:25:51 +00:00
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dv_init(0, 0);
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2001-12-23 16:42:33 +00:00
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}
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/* This function is responsible for initializing a specific instance of
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* the plugin.
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*/
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static void
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gst_dvdec_init(GstDVDec *dvdec)
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{
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2002-06-13 22:30:15 +00:00
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gint i;
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2002-04-11 20:42:25 +00:00
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dvdec->sinkpad = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (sink_temp), "sink");
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2002-01-26 02:48:47 +00:00
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gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->sinkpad);
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2002-06-15 14:32:35 +00:00
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gst_pad_set_query_function (dvdec->sinkpad, NULL);
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2002-06-16 14:45:46 +00:00
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gst_pad_set_convert_function (dvdec->sinkpad, gst_dvdec_sink_convert);
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2001-12-23 16:42:33 +00:00
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2002-04-11 20:42:25 +00:00
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dvdec->videosrcpad = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (video_src_temp), "video");
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2002-01-26 02:48:47 +00:00
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gst_element_add_pad (GST_ELEMENT (dvdec), dvdec->videosrcpad);
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2002-06-15 14:32:35 +00:00
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gst_pad_set_query_function (dvdec->videosrcpad, gst_dvdec_src_query);
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2002-06-16 14:45:46 +00:00
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gst_pad_set_event_function (dvdec->videosrcpad, gst_dvdec_handle_src_event);
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gst_pad_set_convert_function (dvdec->videosrcpad, gst_dvdec_src_convert);
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2001-12-23 16:42:33 +00:00
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2002-04-11 20:42:25 +00:00
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dvdec->audiosrcpad = gst_pad_new_from_template (GST_PAD_TEMPLATE_GET(audio_src_temp), "audio");
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2002-01-26 02:48:47 +00:00
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gst_element_add_pad(GST_ELEMENT(dvdec),dvdec->audiosrcpad);
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2002-06-15 14:32:35 +00:00
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gst_pad_set_query_function (dvdec->audiosrcpad, gst_dvdec_src_query);
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2002-06-16 14:45:46 +00:00
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gst_pad_set_event_function (dvdec->audiosrcpad, gst_dvdec_handle_src_event);
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gst_pad_set_convert_function (dvdec->audiosrcpad, gst_dvdec_src_convert);
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2001-12-23 16:42:33 +00:00
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2002-01-26 02:48:47 +00:00
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gst_element_set_loop_function (GST_ELEMENT (dvdec), gst_dvdec_loop);
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2001-12-23 16:42:33 +00:00
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2002-04-26 13:25:51 +00:00
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dvdec->decoder = dv_decoder_new (0, 0, 0);
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2001-12-23 16:42:33 +00:00
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dvdec->decoder->quality = DV_QUALITY_BEST;
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dvdec->pool = NULL;
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2002-06-13 22:30:15 +00:00
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dvdec->length = 0;
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2002-06-15 14:32:35 +00:00
|
|
|
dvdec->next_ts = 0LL;
|
2002-06-16 14:45:46 +00:00
|
|
|
dvdec->need_discont = FALSE;
|
|
|
|
dvdec->framerate = 0;
|
|
|
|
dvdec->height = 0;
|
2002-06-13 22:30:15 +00:00
|
|
|
|
|
|
|
for (i = 0; i <4; i++) {
|
|
|
|
dvdec->audio_buffers[i] = (gint16 *)g_malloc (DV_AUDIO_MAX_SAMPLES * sizeof (gint16));
|
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
}
|
|
|
|
|
2002-06-16 14:45:46 +00:00
|
|
|
static gboolean
|
|
|
|
gst_dvdec_src_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
|
|
|
|
GstFormat *dest_format, gint64 *dest_value)
|
|
|
|
{
|
|
|
|
gboolean res = TRUE;
|
|
|
|
GstDVDec *dvdec;
|
|
|
|
gint scale = 1;
|
|
|
|
|
|
|
|
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
|
|
|
|
|
|
|
|
if (dvdec->length == 0)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
switch (src_format) {
|
|
|
|
case GST_FORMAT_BYTES:
|
|
|
|
switch (*dest_format) {
|
|
|
|
case GST_FORMAT_DEFAULT:
|
|
|
|
*dest_format = GST_FORMAT_TIME;
|
|
|
|
case GST_FORMAT_TIME:
|
|
|
|
default:
|
|
|
|
res = FALSE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case GST_FORMAT_TIME:
|
|
|
|
switch (*dest_format) {
|
|
|
|
case GST_FORMAT_DEFAULT:
|
|
|
|
*dest_format = GST_FORMAT_BYTES;
|
|
|
|
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_UNITS:
|
|
|
|
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)
|
|
|
|
{
|
|
|
|
gboolean res = TRUE;
|
|
|
|
GstDVDec *dvdec;
|
|
|
|
|
|
|
|
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
|
|
|
|
|
|
|
|
if (dvdec->length == 0)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
switch (src_format) {
|
|
|
|
case GST_FORMAT_BYTES:
|
|
|
|
switch (*dest_format) {
|
|
|
|
case GST_FORMAT_DEFAULT:
|
|
|
|
*dest_format = GST_FORMAT_TIME;
|
|
|
|
case GST_FORMAT_TIME:
|
|
|
|
*dest_value = src_value * GST_SECOND / (dvdec->length * dvdec->framerate);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
res = FALSE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case GST_FORMAT_TIME:
|
|
|
|
switch (*dest_format) {
|
|
|
|
case GST_FORMAT_DEFAULT:
|
|
|
|
*dest_format = GST_FORMAT_BYTES;
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
static gboolean
|
|
|
|
gst_dvdec_src_query (GstPad *pad, GstPadQueryType type,
|
|
|
|
GstFormat *format, gint64 *value)
|
|
|
|
{
|
|
|
|
gboolean res = TRUE;
|
|
|
|
GstDVDec *dvdec;
|
|
|
|
|
|
|
|
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
case GST_PAD_QUERY_TOTAL:
|
|
|
|
switch (*format) {
|
|
|
|
case GST_FORMAT_DEFAULT:
|
|
|
|
*format = GST_FORMAT_TIME;
|
2002-06-16 14:45:46 +00:00
|
|
|
default:
|
2002-06-15 22:30:58 +00:00
|
|
|
{
|
|
|
|
guint64 len;
|
2002-06-16 14:45:46 +00:00
|
|
|
GstFormat tmp_format;
|
2002-06-15 22:30:58 +00:00
|
|
|
|
|
|
|
len = gst_bytestream_length (dvdec->bs);
|
2002-06-16 14:45:46 +00:00
|
|
|
tmp_format = GST_FORMAT_TIME;
|
|
|
|
if (len == -1 || !gst_pad_convert (dvdec->sinkpad, GST_FORMAT_BYTES, len, &tmp_format, value)) {
|
|
|
|
return FALSE;
|
2002-06-15 22:30:58 +00:00
|
|
|
}
|
2002-06-16 14:45:46 +00:00
|
|
|
if (!gst_pad_convert (pad, GST_FORMAT_TIME, *value, format, value)) {
|
2002-06-15 22:30:58 +00:00
|
|
|
return FALSE;
|
2002-06-16 14:45:46 +00:00
|
|
|
}
|
2002-06-15 14:32:35 +00:00
|
|
|
break;
|
2002-06-15 22:30:58 +00:00
|
|
|
}
|
2002-06-15 14:32:35 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case GST_PAD_QUERY_POSITION:
|
|
|
|
switch (*format) {
|
|
|
|
case GST_FORMAT_DEFAULT:
|
|
|
|
*format = GST_FORMAT_TIME;
|
|
|
|
default:
|
2002-06-16 14:45:46 +00:00
|
|
|
res = gst_pad_convert (pad, GST_FORMAT_TIME, dvdec->next_ts, format, value);
|
2002-06-15 14:32:35 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
res = FALSE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
2002-01-26 02:48:47 +00:00
|
|
|
static gboolean
|
2002-06-16 14:45:46 +00:00
|
|
|
gst_dvdec_handle_sink_event (GstDVDec *dvdec)
|
2002-01-26 02:48:47 +00:00
|
|
|
{
|
|
|
|
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_EOS:
|
|
|
|
gst_pad_event_default (dvdec->sinkpad, event);
|
2002-07-08 19:31:05 +00:00
|
|
|
return TRUE;
|
2002-01-26 02:48:47 +00:00
|
|
|
case GST_EVENT_FLUSH:
|
|
|
|
break;
|
|
|
|
case GST_EVENT_DISCONTINUOUS:
|
2002-06-16 14:45:46 +00:00
|
|
|
{
|
|
|
|
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;
|
2002-01-26 02:48:47 +00:00
|
|
|
break;
|
2002-06-16 14:45:46 +00:00
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
default:
|
|
|
|
g_warning ("unhandled event %d\n", type);
|
|
|
|
break;
|
|
|
|
}
|
2002-07-08 19:31:05 +00:00
|
|
|
gst_event_unref (event);
|
2002-01-26 02:48:47 +00:00
|
|
|
return TRUE;
|
2001-12-23 16:42:33 +00:00
|
|
|
}
|
|
|
|
|
2002-06-16 14:45:46 +00:00
|
|
|
static gboolean
|
|
|
|
gst_dvdec_handle_src_event (GstPad *pad, GstEvent *event)
|
|
|
|
{
|
|
|
|
gboolean res = TRUE;
|
|
|
|
GstDVDec *dvdec;
|
|
|
|
|
|
|
|
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
|
|
|
|
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
|
|
case GST_EVENT_SEEK:
|
|
|
|
{
|
|
|
|
gint64 position;
|
|
|
|
GstFormat format;
|
|
|
|
|
2002-06-16 20:49:22 +00:00
|
|
|
/* 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 byte offset */
|
|
|
|
res = FALSE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* then try to figure out the byteoffset for this time */
|
2002-06-16 14:45:46 +00:00
|
|
|
format = GST_FORMAT_BYTES;
|
2002-06-16 20:49:22 +00:00
|
|
|
if (!gst_pad_convert (dvdec->sinkpad, GST_FORMAT_TIME, position,
|
2002-06-16 14:45:46 +00:00
|
|
|
&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;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
res = FALSE;
|
|
|
|
break;
|
|
|
|
}
|
2002-07-08 19:31:05 +00:00
|
|
|
gst_event_unref (event);
|
2002-06-16 14:45:46 +00:00
|
|
|
return res;
|
|
|
|
}
|
2001-12-23 16:42:33 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
gst_dvdec_loop (GstElement *element)
|
|
|
|
{
|
|
|
|
GstDVDec *dvdec;
|
2002-01-26 02:48:47 +00:00
|
|
|
GstBuffer *buf, *outbuf;
|
|
|
|
guint8 *inframe;
|
|
|
|
gint height;
|
2002-05-15 19:05:41 +00:00
|
|
|
guint32 length, got_bytes;
|
2002-06-15 14:32:35 +00:00
|
|
|
GstFormat format;
|
|
|
|
guint64 ts;
|
2001-12-23 16:42:33 +00:00
|
|
|
|
|
|
|
dvdec = GST_DVDEC (element);
|
|
|
|
|
2002-01-26 02:48:47 +00:00
|
|
|
/* first read enough bytes to parse the header */
|
2002-05-15 19:05:41 +00:00
|
|
|
got_bytes = gst_bytestream_peek_bytes (dvdec->bs, &inframe, header_size);
|
|
|
|
if (got_bytes < header_size) {
|
2002-06-16 14:45:46 +00:00
|
|
|
gst_dvdec_handle_sink_event (dvdec);
|
2002-01-26 02:48:47 +00:00
|
|
|
return;
|
2001-12-23 23:00:59 +00:00
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
dv_parse_header (dvdec->decoder, inframe);
|
|
|
|
/* after parsing the header we know the size of the data */
|
2002-06-16 14:45:46 +00:00
|
|
|
dvdec->PAL = dv_system_50_fields (dvdec->decoder);
|
2002-01-26 02:48:47 +00:00
|
|
|
|
2002-06-16 14:45:46 +00:00
|
|
|
dvdec->framerate = (dvdec->PAL ? 25 : 30);
|
|
|
|
dvdec->height = height = (dvdec->PAL ? PAL_HEIGHT : NTSC_HEIGHT);
|
|
|
|
length = (dvdec->PAL ? PAL_BUFFER : NTSC_BUFFER);
|
2001-12-23 16:42:33 +00:00
|
|
|
|
2002-06-13 22:30:15 +00:00
|
|
|
if (length != dvdec->length) {
|
|
|
|
dvdec->length = length;
|
|
|
|
gst_bytestream_size_hint (dvdec->bs, length);
|
|
|
|
}
|
|
|
|
|
2002-01-26 02:48:47 +00:00
|
|
|
/* then read the read data */
|
2002-05-15 19:05:41 +00:00
|
|
|
got_bytes = gst_bytestream_read (dvdec->bs, &buf, length);
|
|
|
|
if (got_bytes < length) {
|
2002-06-16 14:45:46 +00:00
|
|
|
gst_dvdec_handle_sink_event (dvdec);
|
2002-01-26 02:48:47 +00:00
|
|
|
return;
|
|
|
|
}
|
2002-06-16 14:45:46 +00:00
|
|
|
|
2002-01-26 02:48:47 +00:00
|
|
|
/* if we did not negotiate yet, do it now */
|
2001-12-23 23:00:59 +00:00
|
|
|
if (!GST_PAD_CAPS (dvdec->videosrcpad)) {
|
2002-01-26 02:48:47 +00:00
|
|
|
GstCaps *allowed;
|
|
|
|
GstCaps *trylist;
|
|
|
|
|
|
|
|
/* we what we are allowed to do */
|
|
|
|
allowed = gst_pad_get_allowed_caps (dvdec->videosrcpad);
|
|
|
|
|
|
|
|
/* try to fix our height */
|
|
|
|
trylist = gst_caps_intersect (allowed,
|
|
|
|
GST_CAPS_NEW (
|
|
|
|
"dvdec_negotiate",
|
|
|
|
"video/raw",
|
|
|
|
"height", GST_PROPS_INT (height)
|
|
|
|
));
|
|
|
|
|
|
|
|
/* prepare for looping */
|
|
|
|
trylist = gst_caps_normalize (trylist);
|
|
|
|
|
|
|
|
while (trylist) {
|
2002-06-13 12:17:26 +00:00
|
|
|
GstCaps *to_try = gst_caps_copy_1 (trylist);
|
2002-01-26 02:48:47 +00:00
|
|
|
|
|
|
|
/* try each format */
|
|
|
|
if (gst_pad_try_set_caps (dvdec->videosrcpad, to_try)) {
|
2002-03-30 17:06:26 +00:00
|
|
|
guint32 fourcc;
|
|
|
|
|
2002-01-26 02:48:47 +00:00
|
|
|
/* it worked, try to find what it was again */
|
2002-03-30 17:06:26 +00:00
|
|
|
gst_caps_get_fourcc_int (to_try, "format", &fourcc);
|
|
|
|
|
|
|
|
if (fourcc == GST_STR_FOURCC ("RGB ")) {
|
2002-06-16 20:49:22 +00:00
|
|
|
gint bpp;
|
|
|
|
|
|
|
|
gst_caps_get_int (to_try, "bpp", &bpp);
|
|
|
|
if (bpp == 24) {
|
|
|
|
dvdec->space = e_dv_color_rgb;
|
|
|
|
dvdec->bpp = 3;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
dvdec->space = e_dv_color_bgr0;
|
|
|
|
dvdec->bpp = 4;
|
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
dvdec->space = e_dv_color_yuv;
|
|
|
|
dvdec->bpp = 2;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
trylist = trylist->next;
|
|
|
|
}
|
|
|
|
/* oops list exhausted an nothing was found... */
|
|
|
|
if (!trylist) {
|
|
|
|
gst_element_error (element, "could not negotiate");
|
|
|
|
return;
|
|
|
|
}
|
2001-12-23 23:00:59 +00:00
|
|
|
}
|
2002-06-13 22:30:15 +00:00
|
|
|
|
2002-06-16 14:45:46 +00:00
|
|
|
format = GST_FORMAT_TIME;
|
|
|
|
gst_pad_query (dvdec->videosrcpad, GST_PAD_QUERY_POSITION, &format, &ts);
|
|
|
|
|
|
|
|
if (GST_PAD_IS_CONNECTED (dvdec->audiosrcpad)) {
|
|
|
|
gint16 *a_ptr;
|
|
|
|
gint i, j;
|
|
|
|
|
|
|
|
dv_decode_full_audio (dvdec->decoder, GST_BUFFER_DATA (buf), dvdec->audio_buffers);
|
|
|
|
|
|
|
|
/* if we did not negotiate yet, do it now */
|
|
|
|
if (!GST_PAD_CAPS (dvdec->audiosrcpad)) {
|
|
|
|
gst_pad_try_set_caps (dvdec->audiosrcpad,
|
2002-06-13 22:30:15 +00:00
|
|
|
GST_CAPS_NEW (
|
|
|
|
"dvdec_audio_caps",
|
|
|
|
"audio/raw",
|
|
|
|
"format", GST_PROPS_STRING ("int"),
|
|
|
|
"rate", GST_PROPS_INT (dvdec->decoder->audio->frequency),
|
|
|
|
"law", GST_PROPS_INT (0),
|
|
|
|
"depth", GST_PROPS_INT (16),
|
|
|
|
"width", GST_PROPS_INT (16),
|
|
|
|
"signed", GST_PROPS_BOOLEAN (TRUE),
|
|
|
|
"channels", GST_PROPS_INT (dvdec->decoder->audio->num_channels),
|
|
|
|
"endianness", GST_PROPS_INT (G_LITTLE_ENDIAN)
|
|
|
|
));
|
2002-06-16 14:45:46 +00:00
|
|
|
}
|
2002-06-13 22:30:15 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
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];
|
|
|
|
}
|
2002-06-13 22:30:15 +00:00
|
|
|
}
|
2002-06-15 14:32:35 +00:00
|
|
|
GST_BUFFER_TIMESTAMP (outbuf) = ts;
|
2002-06-13 22:30:15 +00:00
|
|
|
|
2002-06-16 14:45:46 +00:00
|
|
|
if (dvdec->need_discont) {
|
|
|
|
GstEvent *discont;
|
|
|
|
|
|
|
|
discont = gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME, ts, NULL);
|
|
|
|
gst_pad_push (dvdec->audiosrcpad, GST_BUFFER (discont));
|
|
|
|
}
|
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
gst_pad_push (dvdec->audiosrcpad, outbuf);
|
2001-12-23 23:00:59 +00:00
|
|
|
}
|
2001-12-23 16:42:33 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
if (GST_PAD_IS_CONNECTED (dvdec->videosrcpad)) {
|
|
|
|
guint8 *outframe;
|
|
|
|
guint8 *outframe_ptrs[3];
|
|
|
|
gint outframe_pitches[3];
|
|
|
|
|
|
|
|
/* try to grab a pool */
|
|
|
|
if (!dvdec->pool) {
|
|
|
|
dvdec->pool = gst_pad_get_bufferpool (dvdec->videosrcpad);
|
|
|
|
}
|
2002-06-13 22:30:15 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
outbuf = NULL;
|
|
|
|
/* try to get a buffer from the pool if we have one */
|
|
|
|
if (dvdec->pool) {
|
|
|
|
outbuf = gst_buffer_new_from_pool (dvdec->pool, 0, 0);
|
|
|
|
}
|
|
|
|
/* no buffer from pool, allocate one ourselves */
|
|
|
|
if (!outbuf) {
|
|
|
|
outbuf = gst_buffer_new ();
|
|
|
|
|
|
|
|
GST_BUFFER_SIZE (outbuf) = (720 * height) * dvdec->bpp;
|
|
|
|
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
|
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
outframe = GST_BUFFER_DATA (outbuf);
|
2001-12-23 16:42:33 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
outframe_ptrs[0] = outframe;
|
|
|
|
outframe_pitches[0] = 720 * dvdec->bpp;
|
2002-06-16 20:49:22 +00:00
|
|
|
|
|
|
|
/* 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];
|
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
dv_decode_full_frame (dvdec->decoder, GST_BUFFER_DATA (buf),
|
|
|
|
dvdec->space, outframe_ptrs, outframe_pitches);
|
2002-01-26 02:48:47 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
GST_BUFFER_TIMESTAMP (outbuf) = ts;
|
|
|
|
|
2002-06-16 14:45:46 +00:00
|
|
|
if (dvdec->need_discont) {
|
|
|
|
GstEvent *discont;
|
|
|
|
|
|
|
|
discont = gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME, ts, NULL);
|
|
|
|
gst_pad_push (dvdec->videosrcpad, GST_BUFFER (discont));
|
|
|
|
}
|
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
gst_pad_push (dvdec->videosrcpad, outbuf);
|
|
|
|
}
|
2002-01-26 02:48:47 +00:00
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
/* FIXME this is inaccurate for NTSC */
|
2002-06-16 14:45:46 +00:00
|
|
|
dvdec->next_ts += GST_SECOND / dvdec->framerate;
|
|
|
|
|
|
|
|
if (dvdec->need_discont) {
|
|
|
|
dvdec->need_discont = FALSE;
|
|
|
|
}
|
2002-06-15 14:32:35 +00:00
|
|
|
|
|
|
|
gst_buffer_unref (buf);
|
2002-01-26 02:48:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static GstElementStateReturn
|
|
|
|
gst_dvdec_change_state (GstElement *element)
|
|
|
|
{
|
|
|
|
GstDVDec *dvdec = GST_DVDEC (element);
|
|
|
|
|
|
|
|
switch (GST_STATE_TRANSITION (element)) {
|
|
|
|
case GST_STATE_NULL_TO_READY:
|
|
|
|
break;
|
|
|
|
case GST_STATE_READY_TO_PAUSED:
|
|
|
|
dvdec->bs = gst_bytestream_new (dvdec->sinkpad);
|
|
|
|
break;
|
|
|
|
case GST_STATE_PAUSED_TO_PLAYING:
|
|
|
|
break;
|
|
|
|
case GST_STATE_PLAYING_TO_PAUSED:
|
2002-07-08 19:31:05 +00:00
|
|
|
if (dvdec->pool)
|
|
|
|
gst_buffer_pool_unref (dvdec->pool);
|
2002-01-26 02:48:47 +00:00
|
|
|
dvdec->pool = NULL;
|
|
|
|
break;
|
|
|
|
case GST_STATE_PAUSED_TO_READY:
|
|
|
|
gst_bytestream_destroy (dvdec->bs);
|
|
|
|
break;
|
|
|
|
case GST_STATE_READY_TO_NULL:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
parent_class->change_state (element);
|
|
|
|
|
|
|
|
return GST_STATE_SUCCESS;
|
2001-12-23 16:42:33 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* 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));
|
|
|
|
|
|
|
|
/* 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) {
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* 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);
|
|
|
|
|
|
|
|
switch (prop_id) {
|
|
|
|
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 (GModule *module, GstPlugin *plugin)
|
|
|
|
{
|
|
|
|
GstElementFactory *factory;
|
2002-06-15 14:32:35 +00:00
|
|
|
GstTypeFactory *type;
|
2001-12-23 16:42:33 +00:00
|
|
|
|
2002-01-26 02:48:47 +00:00
|
|
|
if (!gst_library_load ("gstbytestream")) {
|
|
|
|
gst_info("dvdec: could not load support library: 'gstbytestream'\n");
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
2001-12-23 16:42:33 +00:00
|
|
|
/* We need to create an ElementFactory for each element we provide.
|
|
|
|
* This consists of the name of the element, the GType identifier,
|
|
|
|
* and a pointer to the details structure at the top of the file.
|
|
|
|
*/
|
2002-04-11 20:42:25 +00:00
|
|
|
factory = gst_element_factory_new("dvdec", GST_TYPE_DVDEC, &dvdec_details);
|
2001-12-23 16:42:33 +00:00
|
|
|
g_return_val_if_fail(factory != NULL, FALSE);
|
|
|
|
|
2002-06-13 18:46:36 +00:00
|
|
|
gst_element_factory_set_rank (factory, GST_ELEMENT_RANK_PRIMARY);
|
2001-12-23 16:42:33 +00:00
|
|
|
/* 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.
|
|
|
|
*/
|
2002-04-11 20:42:25 +00:00
|
|
|
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET(sink_temp));
|
|
|
|
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET(video_src_temp));
|
|
|
|
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET(audio_src_temp));
|
2001-12-23 16:42:33 +00:00
|
|
|
|
|
|
|
/* The very last thing is to register the elementfactory with the plugin. */
|
|
|
|
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
|
|
|
|
2002-06-15 14:32:35 +00:00
|
|
|
type = gst_type_factory_new (&dv_definition);
|
|
|
|
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
|
|
|
|
|
2001-12-23 16:42:33 +00:00
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
GstPluginDesc plugin_desc = {
|
|
|
|
GST_VERSION_MAJOR,
|
|
|
|
GST_VERSION_MINOR,
|
|
|
|
"dvdec",
|
|
|
|
plugin_init
|
|
|
|
};
|
|
|
|
|