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New plugin: h264parse (#340638)
Original commit message from CVS: Patch by: Michal Benes <michal dot benes at xeris dot cz> * configure.ac: * gst/h264parse/Makefile.am: * gst/h264parse/gsth264parse.c: (gst_h264_parse_base_init), (gst_h264_parse_finalize), (gst_h264_parse_class_init), (gst_h264_parse_init), (gst_h264_parse_chain), (gst_h264_parse_handle_event), (plugin_init): * gst/h264parse/gsth264parse.h: New plugin: h264parse (#340638)
This commit is contained in:
Michal Benes
Tim-Philipp Müller
parent
a543c64829
commit
8cdc3e5e8c
5 changed files with 306 additions and 0 deletions
13
ChangeLog
13
ChangeLog
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@ -1,3 +1,16 @@
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2006-05-22 Tim-Philipp Müller <tim at centricular dot net>
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Patch by: Michal Benes <michal dot benes at xeris dot cz>
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* configure.ac:
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* gst/h264parse/Makefile.am:
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* gst/h264parse/gsth264parse.c: (gst_h264_parse_base_init),
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(gst_h264_parse_finalize), (gst_h264_parse_class_init),
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(gst_h264_parse_init), (gst_h264_parse_chain),
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(gst_h264_parse_handle_event), (plugin_init):
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* gst/h264parse/gsth264parse.h:
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New plugin: h264parse (#340638)
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2006-05-22 Thomas Vander Stichele <thomas at apestaart dot org>
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2006-05-22 Thomas Vander Stichele <thomas at apestaart dot org>
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* gst/gdp/gstgdpdepay.c: (gst_gdp_depay_chain),
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* gst/gdp/gstgdpdepay.c: (gst_gdp_depay_chain),
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@ -78,6 +78,7 @@ dnl these are all the gst plug-ins, compilable without additional libs
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GST_PLUGINS_ALL="\
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GST_PLUGINS_ALL="\
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cdxaparse \
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cdxaparse \
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freeze \
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freeze \
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h264parse \
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modplug \
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modplug \
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spectrum \
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spectrum \
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speed \
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speed \
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@ -703,6 +704,7 @@ gst-plugins-bad.spec
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gst/Makefile
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gst/Makefile
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gst/cdxaparse/Makefile
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gst/cdxaparse/Makefile
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gst/freeze/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/modplug/Makefile
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gst/modplug/libmodplug/Makefile
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gst/modplug/libmodplug/Makefile
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gst/spectrum/Makefile
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gst/spectrum/Makefile
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11
gst/h264parse/Makefile.am
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11
gst/h264parse/Makefile.am
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@ -0,0 +1,11 @@
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plugin_LTLIBRARIES = libgsth264parse.la
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libgsth264parse_la_SOURCES = \
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gsth264parse.c
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noinst_HEADERS = \
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gsth264parse.h
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libgsth264parse_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS)
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libgsth264parse_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS)
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libgsth264parse_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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216
gst/h264parse/gsth264parse.c
Normal file
216
gst/h264parse/gsth264parse.c
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@ -0,0 +1,216 @@
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/* GStreamer h264 parser
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* Copyright (C) 2005 Michal Benes <michal.benes@itonis.tv>
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*
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* gsth264parse.c:
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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 <stdlib.h>
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#include <string.h>
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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 "gsth264parse.h"
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static GstStaticPadTemplate sinktemplate = 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-h264"));
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-h264"));
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GST_DEBUG_CATEGORY_STATIC (h264_parse_debug);
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#define GST_CAT_DEFAULT h264_parse_debug
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static const GstElementDetails gst_h264_parse_details =
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GST_ELEMENT_DETAILS ("H264Parse",
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"Codec/Parser",
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"Parses raw h264 stream",
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"Michal Benes <michal.benes@itonis.tv>");
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GST_BOILERPLATE (GstH264Parse, gst_h264_parse, GstElement, GST_TYPE_ELEMENT);
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static void gst_h264_parse_finalize (GObject * object);
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static GstFlowReturn gst_h264_parse_chain (GstPad * pad, GstBuffer * buf);
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static gboolean gst_h264_parse_handle_event (GstPad * pad, GstEvent * event);
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static void
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gst_h264_parse_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&srctemplate));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sinktemplate));
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gst_element_class_set_details (gstelement_class, &gst_h264_parse_details);
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GST_DEBUG_CATEGORY_INIT (h264_parse_debug, "h264parse", 0, "h264 parser");
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}
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static void
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gst_h264_parse_finalize (GObject * object)
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{
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GstH264Parse *h264parse;
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h264parse = GST_H264PARSE (object);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_h264_parse_class_init (GstH264ParseClass * klass)
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{
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GObjectClass *gobject_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_h264_parse_finalize);
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}
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static void
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gst_h264_parse_init (GstH264Parse * h264parse, GstH264ParseClass * g_class)
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{
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h264parse->sink = gst_pad_new_from_static_template (&sinktemplate, "sink");
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gst_pad_set_chain_function (h264parse->sink,
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GST_DEBUG_FUNCPTR (gst_h264_parse_chain));
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gst_pad_set_event_function (h264parse->sink,
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GST_DEBUG_FUNCPTR (gst_h264_parse_handle_event));
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gst_element_add_pad (GST_ELEMENT (h264parse), h264parse->sink);
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h264parse->src = gst_pad_new_from_static_template (&srctemplate, "src");
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gst_element_add_pad (GST_ELEMENT (h264parse), h264parse->src);
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h264parse->adapter = gst_adapter_new ();
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}
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static GstFlowReturn
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gst_h264_parse_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstFlowReturn res = GST_FLOW_OK;
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GstH264Parse *h264parse;
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h264parse = GST_H264PARSE (GST_PAD_PARENT (pad));
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if (!GST_PAD_CAPS (h264parse->src)) {
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GstCaps *caps;
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/* Forward sink caps if possible */
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caps = GST_PAD_CAPS (h264parse->sink);
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if (caps)
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gst_caps_ref (caps);
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/* Set default caps if the sink caps were not negotiated */
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if (!caps)
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caps = gst_caps_new_simple ("video/x-h264", NULL);
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/* Set source caps */
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if (!gst_pad_set_caps (h264parse->src, caps)) {
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GST_ELEMENT_ERROR (GST_ELEMENT (h264parse),
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CORE, NEGOTIATION, (NULL), ("failed to set caps"));
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gst_caps_unref (caps);
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return GST_FLOW_ERROR;
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}
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gst_caps_unref (caps);
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}
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gst_adapter_push (h264parse->adapter, buffer);
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while (res == GST_FLOW_OK) {
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gint i;
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gint next_nalu_pos = -1;
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guint32 nalu_size;
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gint avail;
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const guint8 *data;
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avail = gst_adapter_available (h264parse->adapter);
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if (avail < 5)
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break;
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data = gst_adapter_peek (h264parse->adapter, avail);
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nalu_size = (data[0] << 24)
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+ (data[1] << 16) + (data[2] << 8) + data[3];
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if (nalu_size == 1) {
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/* Bytestream format */
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/* Find next NALU header */
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for (i = 1; i < avail - 4; ++i) {
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if (data[i + 0] == 0 && data[i + 1] == 0 && data[i + 2] == 0
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&& data[i + 3] == 1) {
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next_nalu_pos = i;
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break;
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}
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}
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} else {
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/* Packetized format */
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if (nalu_size + 4 <= avail)
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next_nalu_pos = nalu_size + 4;
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}
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/* Send packet */
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if (next_nalu_pos > 0) {
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GstBuffer *outbuf;
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outbuf = gst_buffer_new_and_alloc (next_nalu_pos);
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memcpy (GST_BUFFER_DATA (outbuf), data, next_nalu_pos);
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gst_adapter_flush (h264parse->adapter, next_nalu_pos);
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gst_buffer_set_caps (outbuf, GST_PAD_CAPS (h264parse->src));
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GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
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res = gst_pad_push (h264parse->src, outbuf);
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} else {
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break; /* NALU can not be parsed yet */
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}
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}
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return res;
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}
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static gboolean
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gst_h264_parse_handle_event (GstPad * pad, GstEvent * event)
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{
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GstH264Parse *h264parse;
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gboolean res;
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h264parse = GST_H264PARSE (gst_pad_get_parent (pad));
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res = gst_pad_event_default (pad, event);
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gst_object_unref (h264parse);
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return res;
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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return gst_element_register (plugin, "h264parse",
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GST_RANK_NONE, GST_TYPE_H264PARSE);
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"h264parse",
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"Element parsing raw h264 streams",
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plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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64
gst/h264parse/gsth264parse.h
Normal file
64
gst/h264parse/gsth264parse.h
Normal file
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@ -0,0 +1,64 @@
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/* GStreamer h264 parser
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* Copyright (C) 2005 Michal Benes <michal.benes@itonis.tv>
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*
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* gsth264parse.h:
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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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||||||
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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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#ifndef __GST_H264_PARSE_H__
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#define __GST_H264_PARSE_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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G_BEGIN_DECLS
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#define GST_TYPE_H264PARSE \
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(gst_h264_parse_get_type())
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#define GST_H264PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_H264PARSE,GstH264Parse))
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#define GST_H264PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_H264PARSE,GstH264ParseClass))
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#define GST_IS_H264PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_H264PARSE))
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#define GST_IS_H264PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_H264PARSE))
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typedef struct _GstH264Parse GstH264Parse;
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typedef struct _GstH264ParseClass GstH264ParseClass;
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struct _GstH264Parse
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{
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GstElement element;
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GstPad *sink;
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GstPad *src;
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GstAdapter *adapter;
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};
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struct _GstH264ParseClass
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{
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GstElementClass parent_class;
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};
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GType gst_h264_parse_get_type (void);
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G_END_DECLS
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#endif /* __GST_H264_PARSE_H__ */
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