+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
- ProjectType="Visual C++"
- Version="7.10"
- Name="ac3parse"
- ProjectGUID="{979C216F-0ACF-4956-AE00-055A42D678A0}"
- Keyword="Win32Proj">
- <Platforms>
- <Platform
- Name="Win32"/>
- </Platforms>
- <Configurations>
- <Configuration
- Name="Debug|Win32"
- OutputDirectory="../../win32/Debug"
- IntermediateDirectory="../../win32/Debug"
- ConfigurationType="2"
- CharacterSet="2">
- <Tool
- Name="VCCLCompilerTool"
- Optimization="0"
- AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
- PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;ac3parse_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
- MinimalRebuild="TRUE"
- BasicRuntimeChecks="3"
- RuntimeLibrary="3"
- UsePrecompiledHeader="0"
- WarningLevel="3"
- Detect64BitPortabilityProblems="TRUE"
- DebugInformationFormat="4"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
- OutputFile="$(OutDir)/gstac3parse.dll"
- LinkIncremental="2"
- AdditionalLibraryDirectories="../../../gstreamer/win32/Debug;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
- ModuleDefinitionFile=""
- GenerateDebugInformation="TRUE"
- ProgramDatabaseFile="$(OutDir)/ac3parse.pdb"
- SubSystem="2"
- OptimizeReferences="2"
- ImportLibrary="$(OutDir)/gstac3parse.lib"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"
- CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- <Configuration
- Name="Release|Win32"
- OutputDirectory="../../win32/Release"
- IntermediateDirectory="../../win32/Release"
- ConfigurationType="2"
- CharacterSet="2">
- <Tool
- Name="VCCLCompilerTool"
- AdditionalIncludeDirectories="../../../gstreamer/win32;../../../gstreamer;../../../gstreamer/libs;../../../glib;../../../glib/glib;../../../glib/gmodule;"../../gst-libs";../../../popt/include;../../../libxml2/include/libxml2"
- PreprocessorDefinitions="WIN32;NDEBUG;GST_DISABLE_GST_DEBUG;_WINDOWS;_USRDLL;ac3parse_EXPORTS;HAVE_CONFIG_H;_USE_MATH_DEFINES"
- RuntimeLibrary="2"
- UsePrecompiledHeader="0"
- WarningLevel="3"
- Detect64BitPortabilityProblems="TRUE"
- DebugInformationFormat="3"/>
- <Tool
- Name="VCCustomBuildTool"/>
- <Tool
- Name="VCLinkerTool"
- AdditionalDependencies="glib-2.0.lib gmodule-2.0.lib gthread-2.0.lib gobject-2.0.lib libgstreamer.lib gstbytestream.lib iconv.lib intl.lib"
- OutputFile="$(OutDir)/gstac3parse.dll"
- LinkIncremental="1"
- AdditionalLibraryDirectories="../../../gstreamer/win32/Release;../../../glib/glib;../../../glib/gmodule;../../../glib/gthread;../../../glib/gobject;../../../gettext/lib;../../../libiconv/lib"
- ModuleDefinitionFile=""
- GenerateDebugInformation="TRUE"
- SubSystem="2"
- OptimizeReferences="2"
- EnableCOMDATFolding="2"
- ImportLibrary="$(OutDir)/gstac3parse.lib"
- TargetMachine="1"/>
- <Tool
- Name="VCMIDLTool"/>
- <Tool
- Name="VCPostBuildEventTool"
- CommandLine="copy /Y $(TargetPath) c:\gstreamer\plugins"/>
- <Tool
- Name="VCPreBuildEventTool"/>
- <Tool
- Name="VCPreLinkEventTool"/>
- <Tool
- Name="VCResourceCompilerTool"/>
- <Tool
- Name="VCWebServiceProxyGeneratorTool"/>
- <Tool
- Name="VCXMLDataGeneratorTool"/>
- <Tool
- Name="VCWebDeploymentTool"/>
- <Tool
- Name="VCManagedWrapperGeneratorTool"/>
- <Tool
- Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
- </Configuration>
- </Configurations>
- <References>
- </References>
- <Files>
- <Filter
- Name="Source Files"
- Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
- <File
- RelativePath=".\gstac3parse.c">
- </File>
- </Filter>
- <Filter
- Name="Header Files"
- Filter="h;hpp;hxx;hm;inl;inc;xsd"
- UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
- <File
- RelativePath=".\gstac3parse.h">
- </File>
- </Filter>
- <Filter
- Name="Resource Files"
- Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
- UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
- </Filter>
- </Files>
- <Globals>
- </Globals>
-</VisualStudioProject>
+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * 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.
- */
-/* Element-Checklist-Version: 5 */
-
-
-#define PCM_BUFFER_SIZE (1152*4)
-
-/*#define DEBUG_ENABLED*/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include "gstac3parse.h"
-
-/* struct and table stolen from ac3dec by Aaron Holtzman */
-struct frmsize_s
-{
- guint16 bit_rate;
- guint16 frm_size[3];
-};
-
-static struct frmsize_s frmsizecod_tbl[] = {
- {32, {64, 69, 96}},
- {32, {64, 70, 96}},
- {40, {80, 87, 120}},
- {40, {80, 88, 120}},
- {48, {96, 104, 144}},
- {48, {96, 105, 144}},
- {56, {112, 121, 168}},
- {56, {112, 122, 168}},
- {64, {128, 139, 192}},
- {64, {128, 140, 192}},
- {80, {160, 174, 240}},
- {80, {160, 175, 240}},
- {96, {192, 208, 288}},
- {96, {192, 209, 288}},
- {112, {224, 243, 336}},
- {112, {224, 244, 336}},
- {128, {256, 278, 384}},
- {128, {256, 279, 384}},
- {160, {320, 348, 480}},
- {160, {320, 349, 480}},
- {192, {384, 417, 576}},
- {192, {384, 418, 576}},
- {224, {448, 487, 672}},
- {224, {448, 488, 672}},
- {256, {512, 557, 768}},
- {256, {512, 558, 768}},
- {320, {640, 696, 960}},
- {320, {640, 697, 960}},
- {384, {768, 835, 1152}},
- {384, {768, 836, 1152}},
- {448, {896, 975, 1344}},
- {448, {896, 976, 1344}},
- {512, {1024, 1114, 1536}},
- {512, {1024, 1115, 1536}},
- {576, {1152, 1253, 1728}},
- {576, {1152, 1254, 1728}},
- {640, {1280, 1393, 1920}},
- {640, {1280, 1394, 1920}}
-};
-
-/* GstAc3Parse signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_SKIP
- /* FILL ME */
-};
-
-static GstStaticPadTemplate gst_ac3parse_src_template =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("audio/x-ac3, "
- "channels = (int) [ 1, 6 ], " "rate = (int) [ 32000, 48000 ]")
- );
-
-static GstStaticPadTemplate gst_ac3parse_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("audio/x-ac3")
- );
-
-static void gst_ac3parse_class_init (gpointer g_class);
-static void gst_ac3parse_init (GstAc3Parse * ac3parse);
-
-static void gst_ac3parse_chain (GstPad * pad, GstData * data);
-
-static void gst_ac3parse_set_property (GObject * object,
- guint prop_id, const GValue * value, GParamSpec * pspec);
-static void gst_ac3parse_get_property (GObject * object,
- guint prop_id, GValue * value, GParamSpec * pspec);
-
-static GstStateChangeReturn gst_ac3parse_change_state (GstElement * element,
- GstStateChange transition);
-
-static GstElementClass *parent_class = NULL;
-
-/*static guint gst_ac3parse_signals[LAST_SIGNAL] = { 0 };*/
-
-GType
-ac3parse_get_type (void)
-{
- static GType ac3parse_type = 0;
-
- if (!ac3parse_type) {
- static const GTypeInfo ac3parse_info = {
- sizeof (GstAc3ParseClass), NULL,
- NULL,
- (GClassInitFunc) gst_ac3parse_class_init,
- NULL,
- NULL,
- sizeof (GstAc3Parse),
- 0,
- (GInstanceInitFunc) gst_ac3parse_init,
- };
-
- ac3parse_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstAc3Parse", &ac3parse_info,
- 0);
- }
- return ac3parse_type;
-}
-
-static void
-gst_ac3parse_class_init (gpointer g_class)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
- GstAc3ParseClass *klass;
-
- klass = (GstAc3ParseClass *) g_class;
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- gst_element_class_add_pad_template (gstelement_class,
- gst_static_pad_template_get (&gst_ac3parse_src_template));
- gst_element_class_add_pad_template (gstelement_class,
- gst_static_pad_template_get (&gst_ac3parse_sink_template));
- gst_element_class_set_details_simple (gstelement_class, "AC3 Parser",
- "Codec/Parser/Audio",
- "Parses and frames AC3 audio streams, provides seek",
- "Erik Walthinsen <omega@cse.ogi.edu>");
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SKIP, g_param_spec_int ("skip", "skip", "skip", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->set_property = gst_ac3parse_set_property;
- gobject_class->get_property = gst_ac3parse_get_property;
-
- gstelement_class->change_state = gst_ac3parse_change_state;
-}
-
-static void
-gst_ac3parse_init (GstAc3Parse * ac3parse)
-{
- ac3parse->sinkpad =
- gst_pad_new_from_static_template (&gst_ac3parse_sink_template, "sink");
- gst_element_add_pad (GST_ELEMENT (ac3parse), ac3parse->sinkpad);
- gst_pad_set_chain_function (ac3parse->sinkpad, gst_ac3parse_chain);
-
- ac3parse->srcpad =
- gst_pad_new_from_static_template (&gst_ac3parse_src_template, "src");
- gst_pad_use_explicit_caps (ac3parse->srcpad);
- gst_element_add_pad (GST_ELEMENT (ac3parse), ac3parse->srcpad);
-
- ac3parse->partialbuf = NULL;
- ac3parse->skip = 0;
-
- ac3parse->sample_rate = ac3parse->channels = -1;
-}
-
-static void
-gst_ac3parse_chain (GstPad * pad, GstData * _data)
-{
- GstBuffer *buf = GST_BUFFER (_data);
- GstAc3Parse *ac3parse;
- guchar *data;
- glong size, offset = 0;
- guint16 header;
- guint8 channeldata, acmod, mask;
- GstBuffer *outbuf = NULL;
- gint bpf;
- guint sample_rate = -1, channels = -1;
-
- g_return_if_fail (pad != NULL);
- g_return_if_fail (GST_IS_PAD (pad));
- g_return_if_fail (buf != NULL);
-/* g_return_if_fail(GST_IS_BUFFER(buf)); */
-
- ac3parse = GST_AC3PARSE (GST_OBJECT_PARENT (pad));
- GST_DEBUG ("ac3parse: received buffer of %d bytes", GST_BUFFER_SIZE (buf));
-
- /* deal with partial frame from previous buffer */
- if (ac3parse->partialbuf) {
- GstBuffer *merge;
-
- merge = gst_buffer_merge (ac3parse->partialbuf, buf);
- gst_buffer_unref (buf);
- gst_buffer_unref (ac3parse->partialbuf);
- ac3parse->partialbuf = merge;
- } else {
- ac3parse->partialbuf = buf;
- }
-
- data = GST_BUFFER_DATA (ac3parse->partialbuf);
- size = GST_BUFFER_SIZE (ac3parse->partialbuf);
-
- /* we're searching for at least 7 bytes. first the
- * syncinfo, where 2 bytes are for the syncword
- * (header ID, 0x0b77), 2 bytes crc1 (checksum) and 1 byte
- * fscod+fmrsizecod (framerate/bitrate) and then the
- * bitstreaminfo bsid (version), bsmod (data type) and
- * acmod (channel info, 3 bits). Then some "maybe"
- * bits, and then the LFE indicator (subwoofer bit) */
- while (offset < size - 6) {
- int skipped = 0;
-
- GST_DEBUG ("ac3parse: offset %ld, size %ld ", offset, size);
-
- /* search for a possible start byte */
- for (; ((data[offset] != 0x0b) && (offset < size - 6)); offset++)
- skipped++;
- if (skipped) {
- fprintf (stderr, "ac3parse: **** now at %ld skipped %d bytes (FIXME?)\n",
- offset, skipped);
- }
- /* construct the header word */
- header = GST_READ_UINT16_BE (data + offset);
-/* g_print("AC3PARSE: sync word is 0x%02X\n",header); */
- /* if it's a valid header, go ahead and send off the frame */
- if (header == 0x0b77) {
- gint rate, fsize;
-
-/* g_print("AC3PARSE: found sync at %d\n",offset); */
- /* get the bits we're interested in */
- rate = (data[offset + 4] >> 6) & 0x3;
- switch (rate) {
- case 0x0: /* 00b */
- sample_rate = 48000;
- break;
- case 0x1: /* 01b */
- sample_rate = 44100;
- break;
- case 0x2: /* 10b */
- sample_rate = 32000;
- break;
- case 0x3: /* 11b */
- default:
- /* reserved. if this happens, we're screwed */
- g_assert (0);
- break;
- }
- fsize = data[offset + 4] & 0x3f;
- /* calculate the bpf of the frame */
- bpf = frmsizecod_tbl[fsize].frm_size[rate] * 2;
- /* calculate number of channels */
- channeldata = data[offset + 6]; /* skip bsid/bsmod */
- acmod = (channeldata >> 5) & 0x7;
- switch (acmod) {
- case 0x1: /* 001b = 1 channel */
- channels = 1;
- break;
- case 0x0: /* 000b = 2 independent channels */
- case 0x2: /* 010b = 2x front (stereo) */
- channels = 2;
- break;
- case 0x3: /* 011b = 3 front */
- case 0x4: /* 100b = 2 front, 1 rear */
- channels = 3;
- break;
- case 0x5: /* 101b = 3 front, 1 rear */
- case 0x6: /* 110b = 2 front, 2 rear */
- channels = 4;
- break;
- case 0x7: /* 111b = 3 front, 2 rear */
- channels = 5;
- break;
- default:
- /* whaaaaaaaaaaaaaa!!!!!!!!!!! */
- g_assert (0);
- }
- /* fetch LFE bit (subwoofer) */
- mask = 0x10;
- if (acmod & 0x1 && acmod != 0x1) /* 3 front speakers? */
- mask >>= 2;
- if (acmod & 0x4) /* surround channel? */
- mask >>= 2;
- if (acmod == 0x2) /* 2/0 mode? */
- mask >>= 2;
- if (channeldata & mask) /* LFE: do we have a subwoofer channel? */
- channels++;
- /* if we don't have the whole frame... */
- if ((size - offset) < bpf) {
- GST_DEBUG ("ac3parse: partial buffer needed %ld < %d ", size - offset,
- bpf);
- break;
- } else {
- gboolean need_capsnego = FALSE;
-
- outbuf = gst_buffer_create_sub (ac3parse->partialbuf, offset, bpf);
-
- /* make sure our properties still match */
- if (channels > 0 && ac3parse->channels != channels) {
- ac3parse->channels = channels;
- need_capsnego = TRUE;
- }
- if (sample_rate > 0 && ac3parse->sample_rate != sample_rate) {
- ac3parse->sample_rate = sample_rate;
- need_capsnego = TRUE;
- }
- if (need_capsnego) {
- GstCaps *newcaps;
-
- newcaps = gst_caps_new_simple ("audio/x-ac3",
- "channels", G_TYPE_INT, channels,
- "rate", G_TYPE_INT, sample_rate, NULL);
- gst_pad_set_explicit_caps (ac3parse->srcpad, newcaps);
- }
-
- offset += bpf;
- if (ac3parse->skip == 0 && GST_PAD_IS_LINKED (ac3parse->srcpad)) {
- GST_DEBUG ("ac3parse: pushing buffer of %d bytes",
- GST_BUFFER_SIZE (outbuf));
- gst_pad_push (ac3parse->srcpad, GST_DATA (outbuf));
- } else {
- GST_DEBUG ("ac3parse: skipping buffer of %d bytes",
- GST_BUFFER_SIZE (outbuf));
- gst_buffer_unref (outbuf);
- ac3parse->skip--;
- }
- }
- } else {
- offset++;
- fprintf (stderr, "ac3parse: *** wrong header, skipping byte (FIXME?)\n");
- }
- }
- /* if we have processed this block and there are still */
- /* bytes left not in a partial block, copy them over. */
- if (size - offset > 0) {
- gint remainder = (size - offset);
-
- GST_DEBUG ("ac3parse: partial buffer needed %d for trailing bytes",
- remainder);
-
- outbuf = gst_buffer_create_sub (ac3parse->partialbuf, offset, remainder);
- gst_buffer_unref (ac3parse->partialbuf);
- ac3parse->partialbuf = outbuf;
- }
-}
-
-static void
-gst_ac3parse_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstAc3Parse *src;
-
- g_return_if_fail (GST_IS_AC3PARSE (object));
- src = GST_AC3PARSE (object);
-
- switch (prop_id) {
- case ARG_SKIP:
- src->skip = g_value_get_int (value);
- break;
- default:
- break;
- }
-}
-
-static void
-gst_ac3parse_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstAc3Parse *src;
-
- g_return_if_fail (GST_IS_AC3PARSE (object));
- src = GST_AC3PARSE (object);
-
- switch (prop_id) {
- case ARG_SKIP:
- g_value_set_int (value, src->skip);
- break;
- default:
- break;
- }
-}
-
-static GstStateChangeReturn
-gst_ac3parse_change_state (GstElement * element, GstStateChange transition)
-{
- GstAc3Parse *ac3parse = GST_AC3PARSE (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- /* reset stream info */
- ac3parse->channels = ac3parse->sample_rate = -1;
- break;
- }
-
- if (GST_ELEMENT_CLASS (parent_class)->change_state)
- return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-
- return GST_STATE_CHANGE_SUCCESS;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- if (!gst_element_register (plugin, "ac3parse", GST_RANK_NONE,
- GST_TYPE_AC3PARSE)) {
- return FALSE;
- }
-
- return TRUE;
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- "ac3parse",
- "ac3 parsing", plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
projects / platform / upstream / gstreamer.git / commitdiff