Created new element nuvdemux.
Original commit message from CVS: Created new element nuvdemux.
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12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2006-10-17 Edgard Lima <edgard.lima@indt.org.br>
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Patch by: Renato Filho <renato.filho@indt.org.br> and Rosfran Borges
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<rosfran.borges@indt.org.br>
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* configure.ac:
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* gst/nuvdemux/:
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* gst/nuvdemux/Makefile.am:
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* gst/nuvdemux/gstnuvdemux.c:
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* gst/nuvdemux/gstnuvdemux.h:
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Created new element nuvdemux.
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2006-10-17 Tim-Philipp Müller <tim at centricular dot net>
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Patch by: Josep Torra Valles <josep at fluendo com>
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@ -81,6 +81,7 @@ GST_PLUGINS_ALL="\
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filter \
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freeze \
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h264parse \
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nuvdemux \
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modplug \
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nsf \
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replaygain \
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@ -796,6 +797,7 @@ gst/filter/Makefile
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gst/freeze/Makefile
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gst/h264parse/Makefile
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gst/modplug/Makefile
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gst/nuvdemux/Makefile
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gst/modplug/libmodplug/Makefile
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gst/nsf/Makefile
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gst/replaygain/Makefile
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9
gst/nuvdemux/Makefile.am
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9
gst/nuvdemux/Makefile.am
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@ -0,0 +1,9 @@
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plugin_LTLIBRARIES = libgstnuvdemux.la
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libgstnuvdemux_la_CFLAGS = ${GST_CFLAGS}
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libgstnuvdemux_la_LIBADD = $(GST_BASE_LIBS)
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libgstnuvdemux_la_LDFLAGS = ${GST_PLUGIN_LDFLAGS}
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libgstnuvdemux_la_SOURCES = gstnuvdemux.c
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noinst_HEADERS = gstnuvdemux.h
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gst/nuvdemux/gstnuvdemux.c
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920
gst/nuvdemux/gstnuvdemux.c
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@ -0,0 +1,920 @@
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/* GStreamer
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* Copyright (C) <2006> Renato Araujo Oliveira Filho <renato.filho@indt.org.br>
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* Rosfran Borges <rosfran.borges@indt.org.br>
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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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/* Element-Checklist-Version: 5 */
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/**
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* SECTION:element-nuvdemux
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*
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* <refsect2>
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* <para>
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* Demuxes an .nuv file into raw or compressed audio and/or video streams.
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* </para>
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* <para>
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* This element currently only supports pull-based scheduling.
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* </para>
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* <title>Example launch line</title>
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* <para>
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* <programlisting>
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* gst-launch filesrc test.nuv ! nuvdemux name=demux demux.audio_00 ! decodebin ! audioconvert ! audioresample ! autoaudiosink demux.video_00 ! queue ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink
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* </programlisting>
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* Play (parse and decode) an .nuv file and try to output it to
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* an automatically detected soundcard and videosink. If the NUV file contains
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* compressed audio or video data, this will only work if you have the
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* right decoder elements/plugins installed.
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* </para>
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* </refsect2>
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/gsterror.h>
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#include <gst/gstplugin.h>
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#include <string.h>
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#include "gst/gst-i18n-plugin.h"
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#include "gstnuvdemux.h"
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GST_DEBUG_CATEGORY_STATIC (nuvdemux_debug);
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#define GST_CAT_DEFAULT nuvdemux_debug
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#define GST_FLOW_ERROR_NO_DATA -101
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GST_DEBUG_CATEGORY_EXTERN (GST_CAT_EVENT);
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static const GstElementDetails gst_nuv_demux_details =
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GST_ELEMENT_DETAILS ("Nuv demuxer",
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"Codec/Demuxer",
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"Demultiplex a .nuv file into audio and video",
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"Renato Araujo Oliveira Filho <renato.filho@indt.org.br>,"
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"Rosfran Borges <rosfran.borges@indt.org.br>");
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-nuv"));
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static GstStaticPadTemplate audio_src_template =
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GST_STATIC_PAD_TEMPLATE ("audio_src",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate video_src_template =
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GST_STATIC_PAD_TEMPLATE ("video_src",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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/* NUV Demux indexes init/dispose callers */
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static void gst_nuv_demux_finalize (GObject * object);
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static GstStateChangeReturn gst_nuv_demux_change_state (GstElement * element,
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GstStateChange transition);
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static void gst_nuv_demux_loop (GstPad * pad);
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static GstFlowReturn gst_nuv_demux_chain (GstPad * pad, GstBuffer * buf);
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static GstFlowReturn gst_nuv_demux_play (GstPad * pad);
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static gboolean gst_nuv_demux_sink_activate_pull (GstPad * sinkpad,
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gboolean active);
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static gboolean gst_nuv_demux_sink_activate (GstPad * sinkpad);
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static GstFlowReturn gst_nuv_demux_read_bytes (GstNuvDemux * nuv, guint64 size,
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gboolean move, GstBuffer ** buffer);
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static void gst_nuv_demux_reset (GstNuvDemux * nuv);
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static gboolean gst_nuv_demux_handle_sink_event (GstPad * sinkpad,
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GstEvent * event);
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static void gst_nuv_demux_destoy_src_pad (GstNuvDemux * nuv);
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static void gst_nuv_demux_send_eos (GstNuvDemux * nuv);
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/* GObject methods */
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GST_BOILERPLATE (GstNuvDemux, gst_nuv_demux, GstElement, GST_TYPE_ELEMENT);
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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static inline gdouble
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_gdouble_swap_le_be (gdouble * d)
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{
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union
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{
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guint64 i;
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gdouble d;
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} u;
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u.d = *d;
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u.i = GUINT64_SWAP_LE_BE (u.i);
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return u.d;
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}
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#define READ_DOUBLE_FROM_LE(d) (_gdouble_swap_le_be(d))
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#else /* G_BYTE_ORDER != G_BIG_ENDIAN */
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#define READ_DOUBLE_FROM_LE(d) *((gdouble* ) (d))
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#endif /* G_BYTE_ORDER != G_BIG_ENDIAN */
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static void
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gst_nuv_demux_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&audio_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&video_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_details (element_class, &gst_nuv_demux_details);
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}
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static void
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gst_nuv_demux_class_init (GstNuvDemuxClass * klass)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GST_DEBUG_CATEGORY_INIT (nuvdemux_debug, "nuvdemux",
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0, "Demuxer for NUV streams");
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->finalize = gst_nuv_demux_finalize;
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gstelement_class->change_state = gst_nuv_demux_change_state;
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}
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static void
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gst_nuv_demux_init (GstNuvDemux * nuv, GstNuvDemuxClass * nuv_class)
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{
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nuv->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
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gst_pad_set_activate_function (nuv->sinkpad, gst_nuv_demux_sink_activate);
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gst_pad_set_activatepull_function (nuv->sinkpad,
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gst_nuv_demux_sink_activate_pull);
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gst_pad_set_chain_function (nuv->sinkpad,
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GST_DEBUG_FUNCPTR (gst_nuv_demux_chain));
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gst_pad_set_event_function (nuv->sinkpad, gst_nuv_demux_handle_sink_event);
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gst_element_add_pad (GST_ELEMENT (nuv), nuv->sinkpad);
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nuv->adapter = NULL;
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nuv->mpeg_buffer = NULL;
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nuv->h = NULL;
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nuv->eh = NULL;
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nuv->fh = NULL;
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gst_nuv_demux_reset (nuv);
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}
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static void
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gst_nuv_demux_finalize (GObject * object)
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{
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GstNuvDemux *nuv = GST_NUV_DEMUX (object);
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if (nuv->mpeg_buffer != NULL) {
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gst_buffer_unref (nuv->mpeg_buffer);
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}
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gst_nuv_demux_destoy_src_pad (nuv);
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gst_nuv_demux_reset (nuv);
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if (nuv->adapter != NULL) {
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gst_object_unref (nuv->adapter);
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/*****************************************************************************
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* Utils fucntions
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*****************************************************************************/
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static gboolean
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gst_nuv_demux_handle_sink_event (GstPad * sinkpad, GstEvent * event)
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{
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gboolean res = FALSE;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_NEWSEGMENT:
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res = TRUE;
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break;
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default:
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return gst_pad_event_default (sinkpad, event);
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break;
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}
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gst_event_unref (event);
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return res;
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}
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/* HeaderLoad:
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*/
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static GstFlowReturn
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gst_nuv_demux_header_load (GstNuvDemux * nuv, nuv_header ** h_ret)
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{
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GstBuffer *buffer = NULL;
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GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 72, TRUE, &buffer);
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if (res != GST_FLOW_OK)
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return res;
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nuv_header *h = g_new0 (nuv_header, 1);
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memcpy (h->id, buffer->data, 12);
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memcpy (h->version, buffer->data + 12, 5);
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h->i_width = GST_READ_UINT32_LE (&buffer->data[20]);
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h->i_height = GST_READ_UINT32_LE (&buffer->data[24]);
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h->i_width_desired = GST_READ_UINT32_LE (&buffer->data[28]);
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h->i_height_desired = GST_READ_UINT32_LE (&buffer->data[32]);
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h->i_mode = buffer->data[36];
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h->d_aspect = READ_DOUBLE_FROM_LE (&buffer->data[40]);
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h->d_fps = READ_DOUBLE_FROM_LE (&buffer->data[48]);
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h->i_video_blocks = GST_READ_UINT32_LE (&buffer->data[56]);
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h->i_audio_blocks = GST_READ_UINT32_LE (&buffer->data[60]);
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h->i_text_blocks = GST_READ_UINT32_LE (&buffer->data[64]);
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h->i_keyframe_distance = GST_READ_UINT32_LE (&buffer->data[68]);
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GST_DEBUG_OBJECT (nuv,
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"nuv: h=%s v=%s %dx%d a=%f fps=%f v=%d a=%d t=%d kfd=%d", h->id,
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h->version, h->i_width, h->i_height, h->d_aspect, h->d_fps,
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h->i_video_blocks, h->i_audio_blocks, h->i_text_blocks,
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h->i_keyframe_distance);
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*h_ret = h;
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gst_buffer_unref (buffer);
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return res;
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}
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static GstFlowReturn
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gst_nuv_demux_stream_header_data (GstNuvDemux * nuv)
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{
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GstFlowReturn res = gst_nuv_demux_header_load (nuv, &nuv->h);
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if (res == GST_FLOW_OK)
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nuv->state = GST_NUV_DEMUX_EXTRA_DATA;
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return res;
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}
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/*
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* Read NUV file tag
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*/
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static GstFlowReturn
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gst_nuv_demux_stream_file_header (GstNuvDemux * nuv)
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{
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GstFlowReturn res = GST_FLOW_OK;
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GstBuffer *file_header = NULL;
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res = gst_nuv_demux_read_bytes (nuv, 12, FALSE, &file_header);
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if (res != GST_FLOW_OK) {
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return res;
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} else {
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if (strncmp ((gchar *) file_header->data, "MythTVVideo", 11) ||
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strncmp ((gchar *) file_header->data, "NuppelVideo", 11)) {
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nuv->state = GST_NUV_DEMUX_HEADER_DATA;
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} else {
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GST_DEBUG_OBJECT (nuv, "error parsing file header");
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nuv->state = GST_NUV_DEMUX_INVALID_DATA;
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res = GST_FLOW_ERROR;
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}
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}
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if (file_header != NULL) {
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gst_buffer_unref (file_header);
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}
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return res;
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}
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/* FrameHeaderLoad:
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*/
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static GstFlowReturn
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gst_nuv_demux_frame_header_load (GstNuvDemux * nuv, nuv_frame_header ** h_ret)
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{
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unsigned char *data;
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nuv_frame_header *h;
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GstBuffer *buf = NULL;
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GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 12, TRUE, &buf);
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if (res != GST_FLOW_OK) {
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if (buf != NULL) {
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gst_buffer_unref (buf);
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}
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return res;
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}
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h = g_new0 (nuv_frame_header, 1);
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data = buf->data;
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h->i_type = data[0];
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h->i_compression = data[1];
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h->i_keyframe = data[2];
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h->i_filters = data[3];
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h->i_timecode = GST_READ_UINT32_LE (&data[4]);
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h->i_length = GST_READ_UINT32_LE (&data[8]);
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GST_DEBUG_OBJECT (nuv, "frame hdr: t=%c c=%c k=%d f=0x%x timecode=%u l=%u",
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h->i_type,
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h->i_compression ? h->i_compression : ' ',
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h->i_keyframe ? h->i_keyframe : ' ',
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h->i_filters, h->i_timecode, h->i_length);
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*h_ret = h;
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gst_buffer_unref (buf);
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_nuv_demux_extended_header_load (GstNuvDemux * nuv,
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nuv_extended_header ** h_ret)
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{
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unsigned char *data;
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GstBuffer *buff = NULL;
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nuv_extended_header *h;
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GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 512, TRUE, &buff);
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if (res != GST_FLOW_OK) {
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if (buff != NULL) {
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gst_buffer_unref (buff);
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}
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return res;
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}
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h = g_new0 (nuv_extended_header, 1);
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data = buff->data;
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h->i_version = GST_READ_UINT32_LE (&data[0]);
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h->i_video_fcc = GST_MAKE_FOURCC (data[4], data[5], data[6], data[7]);
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h->i_audio_fcc = GST_MAKE_FOURCC (data[8], data[9], data[10], data[11]);
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h->i_audio_sample_rate = GST_READ_UINT32_LE (&data[12]);
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h->i_audio_bits_per_sample = GST_READ_UINT32_LE (&data[16]);
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h->i_audio_channels = GST_READ_UINT32_LE (&data[20]);
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h->i_audio_compression_ratio = GST_READ_UINT32_LE (&data[24]);
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h->i_audio_quality = GST_READ_UINT32_LE (&data[28]);
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h->i_rtjpeg_quality = GST_READ_UINT32_LE (&data[32]);
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h->i_rtjpeg_luma_filter = GST_READ_UINT32_LE (&data[36]);
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h->i_rtjpeg_chroma_filter = GST_READ_UINT32_LE (&data[40]);
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h->i_lavc_bitrate = GST_READ_UINT32_LE (&data[44]);
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h->i_lavc_qmin = GST_READ_UINT32_LE (&data[48]);
|
||||
h->i_lavc_qmin = GST_READ_UINT32_LE (&data[52]);
|
||||
h->i_lavc_maxqdiff = GST_READ_UINT32_LE (&data[56]);
|
||||
h->i_seekable_offset = GST_READ_UINT64_LE (&data[60]);
|
||||
h->i_keyframe_adjust_offset = GST_READ_UINT64_LE (&data[68]);
|
||||
|
||||
GST_DEBUG_OBJECT (nuv,
|
||||
"ex hdr: v=%d vffc=%4.4s afcc=%4.4s %dHz %dbits ach=%d acr=%d aq=%d"
|
||||
"rtjpeg q=%d lf=%d lc=%d lavc br=%d qmin=%d qmax=%d maxqdiff=%d seekableoff=%lld keyfao=%lld",
|
||||
h->i_version, (gchar *) & h->i_video_fcc, (gchar *) & h->i_audio_fcc,
|
||||
h->i_audio_sample_rate, h->i_audio_bits_per_sample, h->i_audio_channels,
|
||||
h->i_audio_compression_ratio, h->i_audio_quality, h->i_rtjpeg_quality,
|
||||
h->i_rtjpeg_luma_filter, h->i_rtjpeg_chroma_filter, h->i_lavc_bitrate,
|
||||
h->i_lavc_qmin, h->i_lavc_qmax, h->i_lavc_maxqdiff, h->i_seekable_offset,
|
||||
h->i_keyframe_adjust_offset);
|
||||
|
||||
*h_ret = h;
|
||||
gst_buffer_unref (buff);
|
||||
return res;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_nuv_demux_handle_src_event (GstPad * pad, GstEvent * event)
|
||||
{
|
||||
gst_event_unref (event);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
gst_nuv_demux_create_pads (GstNuvDemux * nuv)
|
||||
{
|
||||
if (nuv->h->i_video_blocks != 0) {
|
||||
GstCaps *video_caps = NULL;
|
||||
|
||||
nuv->src_video_pad =
|
||||
gst_pad_new_from_static_template (&video_src_template, "video_src");
|
||||
|
||||
video_caps = gst_caps_new_simple ("video/x-divx",
|
||||
"divxversion", G_TYPE_INT, 4,
|
||||
"width", G_TYPE_INT, nuv->h->i_width,
|
||||
"height", G_TYPE_INT, nuv->h->i_height,
|
||||
"framerate", GST_TYPE_FRACTION, (gint) (nuv->h->d_fps * 1000.0f), 1000,
|
||||
"pixel-aspect-ratio", GST_TYPE_FRACTION,
|
||||
(gint) (nuv->h->d_aspect * 1000.0f), 1000, NULL);
|
||||
|
||||
gst_pad_use_fixed_caps (nuv->src_video_pad);
|
||||
gst_pad_set_active (nuv->src_video_pad, TRUE);
|
||||
gst_pad_set_caps (nuv->src_video_pad, video_caps);
|
||||
|
||||
gst_pad_set_event_function (nuv->src_video_pad,
|
||||
gst_nuv_demux_handle_src_event);
|
||||
gst_element_add_pad (GST_ELEMENT (nuv), nuv->src_video_pad);
|
||||
gst_caps_unref (video_caps);
|
||||
}
|
||||
|
||||
if (nuv->h->i_audio_blocks != 0) {
|
||||
GstCaps *audio_caps = NULL;
|
||||
|
||||
nuv->src_audio_pad =
|
||||
gst_pad_new_from_static_template (&audio_src_template, "audio_src");
|
||||
|
||||
audio_caps = gst_caps_new_simple ("audio/mpeg",
|
||||
"rate", G_TYPE_INT, nuv->eh->i_audio_sample_rate,
|
||||
"format", GST_TYPE_FOURCC, nuv->eh->i_audio_fcc,
|
||||
"channels", G_TYPE_INT, nuv->eh->i_audio_channels,
|
||||
"mpegversion", G_TYPE_INT, nuv->eh->i_version, NULL);
|
||||
|
||||
gst_pad_use_fixed_caps (nuv->src_audio_pad);
|
||||
gst_pad_set_active (nuv->src_audio_pad, TRUE);
|
||||
gst_pad_set_caps (nuv->src_audio_pad, audio_caps);
|
||||
gst_element_add_pad (GST_ELEMENT (nuv), nuv->src_audio_pad);
|
||||
|
||||
gst_pad_set_event_function (nuv->src_audio_pad,
|
||||
gst_nuv_demux_handle_src_event);
|
||||
gst_caps_unref (audio_caps);
|
||||
}
|
||||
|
||||
gst_element_no_more_pads (GST_ELEMENT (nuv));
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_read_head_frame (GstNuvDemux * nuv)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
|
||||
ret = gst_nuv_demux_frame_header_load (nuv, &nuv->fh);
|
||||
if (ret != GST_FLOW_OK)
|
||||
return ret;
|
||||
|
||||
nuv->state = GST_NUV_DEMUX_MOVI;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_stream_data (GstNuvDemux * nuv)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
GstBuffer *buf = NULL;
|
||||
nuv_frame_header *h = nuv->fh;
|
||||
|
||||
if (h->i_type == 'R')
|
||||
goto done;
|
||||
|
||||
ret = gst_nuv_demux_read_bytes (nuv, h->i_length, TRUE, &buf);
|
||||
if (ret != GST_FLOW_OK) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
GST_BUFFER_TIMESTAMP (buf) = h->i_timecode * GST_MSECOND;
|
||||
|
||||
switch (h->i_type) {
|
||||
case 'V':
|
||||
{
|
||||
GST_BUFFER_OFFSET (buf) = nuv->video_offset;
|
||||
gst_buffer_set_caps (buf, GST_PAD_CAPS (nuv->src_video_pad));
|
||||
ret = gst_pad_push (nuv->src_video_pad, buf);
|
||||
nuv->video_offset++;
|
||||
break;
|
||||
}
|
||||
case 'A':
|
||||
{
|
||||
GST_BUFFER_OFFSET (buf) = nuv->audio_offset;
|
||||
gst_buffer_set_caps (buf, GST_PAD_CAPS (nuv->src_audio_pad));
|
||||
ret = gst_pad_push (nuv->src_audio_pad, buf);
|
||||
nuv->audio_offset++;
|
||||
break;
|
||||
}
|
||||
case 'S':
|
||||
{
|
||||
switch (h->i_compression) {
|
||||
case 'V':
|
||||
gst_pad_push_event (nuv->src_video_pad,
|
||||
gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
|
||||
break;
|
||||
case 'A':
|
||||
gst_pad_push_event (nuv->src_audio_pad,
|
||||
gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
|
||||
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
done:
|
||||
nuv->state = GST_NUV_DEMUX_FRAME_HEADER;
|
||||
g_free (nuv->fh);
|
||||
nuv->fh = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_stream_mpeg_data (GstNuvDemux * nuv)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
|
||||
/* ffmpeg extra data */
|
||||
ret =
|
||||
gst_nuv_demux_read_bytes (nuv, nuv->mpeg_data_size, TRUE,
|
||||
&nuv->mpeg_buffer);
|
||||
if (ret != GST_FLOW_OK) {
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
GST_BUFFER_SIZE (nuv->mpeg_buffer) = nuv->mpeg_data_size;
|
||||
nuv->state = GST_NUV_DEMUX_EXTEND_HEADER;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_stream_extra_data (GstNuvDemux * nuv)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
|
||||
/* Load 'D' */
|
||||
nuv_frame_header *h;
|
||||
|
||||
ret = gst_nuv_demux_frame_header_load (nuv, &h);
|
||||
if (ret != GST_FLOW_OK)
|
||||
return ret;
|
||||
|
||||
if (h->i_type != 'D') {
|
||||
g_free (h);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
if (h->i_length > 0) {
|
||||
if (h->i_compression == 'F') {
|
||||
nuv->state = GST_NUV_DEMUX_MPEG_DATA;
|
||||
} else {
|
||||
g_free (h);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
} else {
|
||||
nuv->state = GST_NUV_DEMUX_EXTEND_HEADER;
|
||||
}
|
||||
|
||||
g_free (h);
|
||||
h = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_stream_extend_header_data (GstNuvDemux * nuv)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
|
||||
ret = gst_nuv_demux_extended_header_load (nuv, &nuv->eh);
|
||||
if (ret != GST_FLOW_OK)
|
||||
return ret;
|
||||
|
||||
gst_nuv_demux_create_pads (nuv);
|
||||
nuv->state = GST_NUV_DEMUX_FRAME_HEADER;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_stream_extend_header (GstNuvDemux * nuv)
|
||||
{
|
||||
GstBuffer *buf = NULL;
|
||||
GstFlowReturn res = GST_FLOW_OK;
|
||||
|
||||
res = gst_nuv_demux_read_bytes (nuv, 1, FALSE, &buf);
|
||||
if (res != GST_FLOW_OK) {
|
||||
if (buf != NULL) {
|
||||
gst_buffer_unref (buf);
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
if (buf->data[0] == 'X') {
|
||||
gst_buffer_unref (buf);
|
||||
buf = NULL;
|
||||
nuv_frame_header *h = NULL;
|
||||
|
||||
res = gst_nuv_demux_frame_header_load (nuv, &h);
|
||||
if (res != GST_FLOW_OK)
|
||||
return res;
|
||||
|
||||
if (h->i_length != 512) {
|
||||
g_free (h);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
g_free (h);
|
||||
h = NULL;
|
||||
nuv->state = GST_NUV_DEMUX_EXTEND_HEADER_DATA;
|
||||
} else {
|
||||
nuv->state = GST_NUV_DEMUX_INVALID_DATA;
|
||||
g_object_unref (buf);
|
||||
GST_ELEMENT_WARNING (nuv, STREAM, FAILED,
|
||||
(_("incomplete NUV support")), ("incomplete NUV support"));
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_play (GstPad * pad)
|
||||
{
|
||||
GstFlowReturn res = GST_FLOW_OK;
|
||||
GstNuvDemux *nuv = GST_NUV_DEMUX (GST_PAD_PARENT (pad));
|
||||
|
||||
switch (nuv->state) {
|
||||
case GST_NUV_DEMUX_START:
|
||||
res = gst_nuv_demux_stream_file_header (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
if (nuv->state != GST_NUV_DEMUX_HEADER_DATA)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_HEADER_DATA:
|
||||
res = gst_nuv_demux_stream_header_data (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
if (nuv->state != GST_NUV_DEMUX_EXTRA_DATA)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_EXTRA_DATA:
|
||||
res = gst_nuv_demux_stream_extra_data (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
if (nuv->state != GST_NUV_DEMUX_MPEG_DATA)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_MPEG_DATA:
|
||||
res = gst_nuv_demux_stream_mpeg_data (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
|
||||
if (nuv->state != GST_NUV_DEMUX_EXTEND_HEADER)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_EXTEND_HEADER:
|
||||
res = gst_nuv_demux_stream_extend_header (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
if (nuv->state != GST_NUV_DEMUX_EXTEND_HEADER_DATA)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_EXTEND_HEADER_DATA:
|
||||
res = gst_nuv_demux_stream_extend_header_data (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
|
||||
if (nuv->state != GST_NUV_DEMUX_FRAME_HEADER)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_FRAME_HEADER:
|
||||
res = gst_nuv_demux_read_head_frame (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) {
|
||||
goto pause;
|
||||
}
|
||||
if (nuv->state != GST_NUV_DEMUX_MOVI)
|
||||
break;
|
||||
|
||||
case GST_NUV_DEMUX_MOVI:
|
||||
res = gst_nuv_demux_stream_data (nuv);
|
||||
if ((res != GST_FLOW_OK) && (res != GST_FLOW_CUSTOM_ERROR)) {
|
||||
goto pause;
|
||||
}
|
||||
break;
|
||||
case GST_NUV_DEMUX_INVALID_DATA:
|
||||
goto pause;
|
||||
break;
|
||||
default:
|
||||
g_assert_not_reached ();
|
||||
}
|
||||
|
||||
GST_DEBUG_OBJECT (nuv, "state: %d res:%s", nuv->state,
|
||||
gst_flow_get_name (res));
|
||||
|
||||
return GST_FLOW_OK;
|
||||
|
||||
pause:
|
||||
GST_LOG_OBJECT (nuv, "pausing task, reason %s", gst_flow_get_name (res));
|
||||
gst_pad_pause_task (nuv->sinkpad);
|
||||
if (GST_FLOW_IS_FATAL (res)) {
|
||||
GST_ELEMENT_ERROR (nuv, STREAM, FAILED,
|
||||
(_("Internal data stream error.")),
|
||||
("streaming stopped, reason %s", gst_flow_get_name (res)));
|
||||
|
||||
gst_nuv_demux_send_eos (nuv);
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_nuv_demux_send_eos (GstNuvDemux * nuv)
|
||||
{
|
||||
gst_element_post_message (GST_ELEMENT (nuv),
|
||||
gst_message_new_segment_done (GST_OBJECT (nuv), GST_FORMAT_TIME, -1));
|
||||
|
||||
if (nuv->src_video_pad)
|
||||
gst_pad_push_event (nuv->src_video_pad, gst_event_new_eos ());
|
||||
if (nuv->src_audio_pad)
|
||||
gst_pad_push_event (nuv->src_audio_pad, gst_event_new_eos ());
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_read_bytes (GstNuvDemux * nuv, guint64 size, gboolean move,
|
||||
GstBuffer ** buffer)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
|
||||
if (size == 0) {
|
||||
*buffer = gst_buffer_new ();
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (nuv->mode == 0) {
|
||||
ret = gst_pad_pull_range (nuv->sinkpad, nuv->offset, size, buffer);
|
||||
if (ret == GST_FLOW_OK) {
|
||||
if (move) {
|
||||
nuv->offset += size;
|
||||
}
|
||||
/* got eos */
|
||||
} else if (ret == GST_FLOW_UNEXPECTED) {
|
||||
gst_nuv_demux_send_eos (nuv);
|
||||
return GST_FLOW_WRONG_STATE;
|
||||
}
|
||||
} else {
|
||||
if (gst_adapter_available (nuv->adapter) < size)
|
||||
return GST_FLOW_ERROR_NO_DATA;
|
||||
|
||||
if (move) {
|
||||
*buffer = gst_adapter_take_buffer (nuv->adapter, size);
|
||||
} else {
|
||||
guint8 *data = NULL;
|
||||
|
||||
data = (guint8 *) gst_adapter_peek (nuv->adapter, size);
|
||||
*buffer = gst_buffer_new ();
|
||||
gst_buffer_set_data (*buffer, data, size);
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_nuv_demux_sink_activate (GstPad * sinkpad)
|
||||
{
|
||||
gboolean res = TRUE;
|
||||
GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (sinkpad));
|
||||
|
||||
if (gst_pad_check_pull_range (sinkpad)) {
|
||||
nuv->mode = 0;
|
||||
nuv->adapter = NULL;
|
||||
res = gst_pad_activate_pull (sinkpad, TRUE);
|
||||
} else {
|
||||
nuv->mode = 1;
|
||||
nuv->adapter = gst_adapter_new ();
|
||||
res = gst_pad_activate_push (sinkpad, TRUE);
|
||||
}
|
||||
|
||||
g_object_unref (nuv);
|
||||
return res;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_nuv_demux_sink_activate_pull (GstPad * sinkpad, gboolean active)
|
||||
{
|
||||
GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (sinkpad));
|
||||
|
||||
if (active) {
|
||||
gst_pad_start_task (sinkpad, (GstTaskFunction) gst_nuv_demux_loop, sinkpad);
|
||||
} else {
|
||||
gst_pad_stop_task (sinkpad);
|
||||
}
|
||||
gst_object_unref (nuv);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_nuv_demux_chain (GstPad * pad, GstBuffer * buf)
|
||||
{
|
||||
GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (pad));
|
||||
|
||||
gst_adapter_push (nuv->adapter, buf);
|
||||
|
||||
return gst_nuv_demux_play (pad);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_nuv_demux_loop (GstPad * pad)
|
||||
{
|
||||
gst_nuv_demux_play (pad);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_nuv_demux_reset (GstNuvDemux * nuv)
|
||||
{
|
||||
nuv->state = GST_NUV_DEMUX_START;
|
||||
nuv->mode = 0;
|
||||
nuv->offset = 0;
|
||||
nuv->video_offset = 0;
|
||||
nuv->audio_offset = 0;
|
||||
|
||||
if (nuv->adapter != NULL)
|
||||
gst_adapter_clear (nuv->adapter);
|
||||
|
||||
if (nuv->mpeg_buffer != NULL) {
|
||||
gst_buffer_unref (nuv->mpeg_buffer);
|
||||
nuv->mpeg_buffer = NULL;
|
||||
}
|
||||
|
||||
g_free (nuv->h);
|
||||
nuv->h = NULL;
|
||||
|
||||
g_free (nuv->eh);
|
||||
nuv->eh = NULL;
|
||||
|
||||
g_free (nuv->fh);
|
||||
nuv->fh = NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_nuv_demux_destoy_src_pad (GstNuvDemux * nuv)
|
||||
{
|
||||
if (nuv->src_video_pad) {
|
||||
gst_element_remove_pad (GST_ELEMENT (nuv), nuv->src_video_pad);
|
||||
nuv->src_video_pad = NULL;
|
||||
}
|
||||
|
||||
if (nuv->src_audio_pad) {
|
||||
gst_element_remove_pad (GST_ELEMENT (nuv), nuv->src_audio_pad);
|
||||
nuv->src_audio_pad = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static GstStateChangeReturn
|
||||
gst_nuv_demux_change_state (GstElement * element, GstStateChange transition)
|
||||
{
|
||||
GstStateChangeReturn ret;
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
||||
if (ret == GST_STATE_CHANGE_FAILURE)
|
||||
goto done;
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
||||
gst_nuv_demux_destoy_src_pad (GST_NUV_DEMUX (element));
|
||||
gst_nuv_demux_reset (GST_NUV_DEMUX (element));
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
done:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
#ifdef ENABLE_NLS
|
||||
setlocale (LC_ALL, "");
|
||||
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
|
||||
#endif /* ENABLE_NLS */
|
||||
|
||||
if (!gst_element_register (plugin, "nuvdemux", GST_RANK_SECONDARY,
|
||||
GST_TYPE_NUV_DEMUX)) {
|
||||
return FALSE;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"nuvdemux",
|
||||
"Demuxes and muxes audio and video",
|
||||
plugin_init, VERSION, "LGPL", "NuvDemux", "")
|
173
gst/nuvdemux/gstnuvdemux.h
Normal file
173
gst/nuvdemux/gstnuvdemux.h
Normal file
@ -0,0 +1,173 @@
|
||||
/* GStreamer
|
||||
* Copyright (C) <2006> Renato Araujo Oliveira Filho <renato.filho@indt.org.br>
|
||||
* Rosfran Borges <rosfran.borges@indt.org.br>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_NUV_DEMUX_H__
|
||||
#define __GST_NUV_DEMUX_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
#include <gst/base/gstadapter.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_NUV_DEMUX \
|
||||
(gst_nuv_demux_get_type ())
|
||||
#define GST_NUV_DEMUX(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_NUV_DEMUX, GstNuvDemux))
|
||||
#define GST_NUV_DEMUX_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_NUV_DEMUX, GstNuvDemuxClass))
|
||||
#define GST_IS_NUV_DEMUX(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_NUV_DEMUX))
|
||||
#define GST_IS_NUV_DEMUX_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_NUV_DEMUX))
|
||||
|
||||
|
||||
/* */
|
||||
typedef struct
|
||||
{
|
||||
gchar id[12]; /* "NuppelVideo\0" or "MythTVVideo\0" */
|
||||
gchar version[5]; /* "x.xx\0" */
|
||||
|
||||
gint i_width;
|
||||
gint i_height;
|
||||
gint i_width_desired;
|
||||
gint i_height_desired;
|
||||
|
||||
gchar i_mode; /* P progressive, I interlaced */
|
||||
|
||||
gdouble d_aspect; /* 1.0 squared pixel */
|
||||
gdouble d_fps;
|
||||
|
||||
gint i_video_blocks; /* 0 no video, -1 unknown */
|
||||
gint i_audio_blocks;
|
||||
gint i_text_blocks;
|
||||
|
||||
gint i_keyframe_distance;
|
||||
|
||||
} nuv_header;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
gchar i_type; /* A: audio, V: video, S: sync; T: test
|
||||
R: Seekpoint (string:RTjjjjjjjj)
|
||||
D: Extra data for codec */
|
||||
gchar i_compression; /* V: 0 uncompressed
|
||||
1 RTJpeg
|
||||
2 RTJpeg+lzo
|
||||
N black frame
|
||||
L copy last
|
||||
A: 0 uncompressed (44100 1-bits, 2ch)
|
||||
1 lzo
|
||||
2 layer 2
|
||||
3 layer 3
|
||||
F flac
|
||||
S shorten
|
||||
N null frame loudless
|
||||
L copy last
|
||||
S: B audio and vdeo sync point
|
||||
A audio sync info (timecode == effective
|
||||
dsp frequency*100)
|
||||
V next video sync (timecode == next video
|
||||
frame num)
|
||||
S audio,video,text correlation */
|
||||
gchar i_keyframe; /* 0 keyframe, else no no key frame */
|
||||
guint8 i_filters; /* 0x01: gauss 5 pixel (8,2,2,2,2)/16
|
||||
0x02: gauss 5 pixel (8,1,1,1,1)/12
|
||||
0x04: cartoon filter */
|
||||
|
||||
guint32 i_timecode; /* ms */
|
||||
|
||||
guint32 i_length; /* V,A,T: length of following data
|
||||
S: length of packet correl */
|
||||
} nuv_frame_header;
|
||||
|
||||
/* FIXME Not sure of this one */
|
||||
typedef struct
|
||||
{
|
||||
gint i_version;
|
||||
guint32 i_video_fcc;
|
||||
|
||||
guint32 i_audio_fcc;
|
||||
gint i_audio_sample_rate;
|
||||
gint i_audio_bits_per_sample;
|
||||
gint i_audio_channels;
|
||||
gint i_audio_compression_ratio;
|
||||
gint i_audio_quality;
|
||||
gint i_rtjpeg_quality;
|
||||
gint i_rtjpeg_luma_filter;
|
||||
gint i_rtjpeg_chroma_filter;
|
||||
gint i_lavc_bitrate;
|
||||
gint i_lavc_qmin;
|
||||
gint i_lavc_qmax;
|
||||
gint i_lavc_maxqdiff;
|
||||
gint64 i_seekable_offset;
|
||||
gint64 i_keyframe_adjust_offset;
|
||||
|
||||
} nuv_extended_header;
|
||||
|
||||
typedef enum {
|
||||
GST_NUV_DEMUX_START,
|
||||
GST_NUV_DEMUX_HEADER_DATA,
|
||||
GST_NUV_DEMUX_EXTRA_DATA,
|
||||
GST_NUV_DEMUX_MPEG_DATA,
|
||||
GST_NUV_DEMUX_EXTEND_HEADER,
|
||||
GST_NUV_DEMUX_EXTEND_HEADER_DATA,
|
||||
GST_NUV_DEMUX_FRAME_HEADER,
|
||||
GST_NUV_DEMUX_MOVI,
|
||||
GST_NUV_DEMUX_INVALID_DATA
|
||||
} GstNuvDemuxState;
|
||||
|
||||
typedef struct _GstNuvDemux {
|
||||
GstElement parent;
|
||||
|
||||
guint mode;
|
||||
GstAdapter *adapter;
|
||||
guint64 video_offset;
|
||||
guint64 audio_offset;
|
||||
|
||||
/* pads */
|
||||
GstPad *sinkpad;
|
||||
GstPad *src_video_pad;
|
||||
GstPad *src_audio_pad;
|
||||
gboolean first_video;
|
||||
gboolean first_audio;
|
||||
|
||||
/* NUV decoding state */
|
||||
GstNuvDemuxState state;
|
||||
guint64 offset;
|
||||
|
||||
/* Mpeg ExtraData */
|
||||
guint64 mpeg_data_size;
|
||||
GstBuffer *mpeg_buffer;
|
||||
|
||||
nuv_header *h;
|
||||
nuv_extended_header *eh;
|
||||
nuv_frame_header *fh;
|
||||
} GstNuvDemux;
|
||||
|
||||
typedef struct _GstNuvDemuxClass {
|
||||
GstElementClass parent_class;
|
||||
} GstNuvDemuxClass;
|
||||
|
||||
GType gst_nuv_demux_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_NUV_DEMUX_H__ */
|
Loading…
x
Reference in New Issue
Block a user