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Add new windows ACM encoder wrapper.

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Original commit message from CVS:
* configure.ac:
* sys/Makefile.am:
* sys/acmenc/Makefile.am:
* sys/acmenc/acmenc.c:
Add new windows ACM encoder wrapper.
This commit is contained in:
Michael Smith 2008-08-20 21:44:22 +00:00
parent e2c08fe736
commit 5c2b8e8044
5 changed files with 639 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
ChangeLog
View file

@ -1,3 +1,11 @@
2008-08-20 Michael Smith <msmith@songbirdnest.com>
* configure.ac:
* sys/Makefile.am:
* sys/acmenc/Makefile.am:
* sys/acmenc/acmenc.c:
Add new windows ACM encoder wrapper.
2008-08-18 Zaheer Abbas Merali <zaheerabbas at merali dot org>
patch by: Michael Krufky

13
configure.ac
View file

@ -238,6 +238,7 @@ dnl *** plug-ins to include ***
dnl these are all the gst plug-ins, compilable without additional libs
AG_GST_CHECK_PLUGIN(app)
AG_GST_CHECK_PLUGIN(apex)
AG_GST_CHECK_PLUGIN(bayer)
AG_GST_CHECK_PLUGIN(cdxaparse)
AG_GST_CHECK_PLUGIN(deinterlace)
@ -1126,6 +1127,14 @@ AG_GST_CHECK_FEATURE(WININET, [Windows internet library], wininet, [
[HAVE_WININET="yes"], [HAVE_WININET="no"])
])
dnl *** acm ***
translit(dnm, m, l) AM_CONDITIONAL(USE_ACM, true)
AG_GST_CHECK_FEATURE(ACM, [Windows ACM library], acm, [
AC_MSG_CHECKING([Checking for ACM support])
AC_CHECK_HEADERS([windows.h msacm.h],
[HAVE_ACM="yes"], [HAVE_ACM="no"])
])
else
dnl not building plugins with external dependencies,
@ -1174,6 +1183,7 @@ AM_CONDITIONAL(USE_X264, false)
AM_CONDITIONAL(USE_XVID, false)
AM_CONDITIONAL(USE_WILDMIDI, false)
AM_CONDITIONAL(USE_WININET, false)
AM_CONDITIONAL(USE_ACM, false)
fi dnl of EXT plugins
@ -1237,6 +1247,7 @@ AC_CONFIG_FILES(
Makefile
gst-plugins-bad.spec
gst/Makefile
gst/apex/Makefile
gst/app/Makefile
gst/bayer/Makefile
gst/cdxaparse/Makefile
@ -1276,6 +1287,7 @@ gst-libs/gst/app/Makefile
gst-libs/gst/dshow/Makefile
sys/Makefile
sys/dshowdecwrapper/Makefile
sys/acmenc/Makefile
sys/dshowsrcwrapper/Makefile
sys/dshowvideosink/Makefile
sys/dvb/Makefile
@ -1308,6 +1320,7 @@ ext/ladspa/Makefile
ext/libmms/Makefile
ext/Makefile
ext/nas/Makefile
ext/mozilla/Makefile
ext/mpeg2enc/Makefile
ext/mplex/Makefile
ext/musepack/Makefile

10
sys/Makefile.am
View file

@ -52,8 +52,14 @@ else
WININET_DIR=
endif
SUBDIRS = $(DVB_DIR) $(FBDEV_DIR) $(OSS4_DIR) $(QT_DIR) $(VCD_DIR) $(WININET_DIR)
if USE_ACM
ACM_DIR=acmenc
else
ACM_DIR=
endif
DIST_SUBDIRS = dvb fbdev dshowdecwrapper dshowsrcwrapper dshowvideosink \
SUBDIRS = $(ACM_DIR) $(DVB_DIR) $(FBDEV_DIR) $(OSS4_DIR) $(QT_DIR) $(VCD_DIR) $(WININET_DIR)
DIST_SUBDIRS = acmenc dvb fbdev dshowdecwrapper dshowsrcwrapper dshowvideosink \
oss4 qtwrapper vcd wininet

9
sys/acmenc/Makefile.am Normal file
View file

@ -0,0 +1,9 @@
plugin_LTLIBRARIES = libgstacmencsink.la
libgstacmencsink_la_SOURCES = acmenc.c
libgstacmencsink_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstacmencsink_la_LIBADD = $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) \
-lgstriff-$(GST_MAJORMINOR) -lmsacm32
libgstacmencsink_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(DIRECTSOUND_LDFLAGS)

601
sys/acmenc/acmenc.c Normal file
View file

@ -0,0 +1,601 @@
/* GStreamer
* Copyright (C) 2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
*
* Authors: Michael Smith <msmith@songbirdnest.com>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* */
#include <windows.h>
#include <mmreg.h>
#include <msacm.h>
#include <gst/gst.h>
#include <gst/riff/riff-media.h>
/* This has to be bigger than some unspecified minimum size or things
* break; I don't understand why (4kB isn't enough). Make it nice and
* big.
*/
#define ACM_BUFFER_SIZE (64 * 1024)
enum
{ ARG_0, ARG_BITRATE
};
#define DEFAULT_BITRATE 128000
#define ACMENC_PARAMS_QDATA g_quark_from_static_string("acmenc-params")
#define GST_CAT_DEFAULT acmenc_debug
GST_DEBUG_CATEGORY_STATIC (acmenc_debug);
static GstStaticPadTemplate acmenc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, " "depth = (int)16, "
"width = (int)16, " "endianness = (int)" G_STRINGIFY (G_BYTE_ORDER)
", " "signed = (boolean)TRUE, " "channels = (int) [1,2], "
"rate = (int)[1, MAX]") );
static GstStaticPadTemplate acmenc_src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstElementClass *parent_class = NULL;
typedef struct _ACMEncClass
{
GstElementClass parent_class;
HACMDRIVERID driverId;
} ACMEncClass;
typedef struct _ACMEnc
{
GstElement parent;
GstPad * sinkpad;
GstPad * srcpad;
gboolean is_setup;
WAVEFORMATEX infmt;
WAVEFORMATEX * outfmt;
HACMDRIVER driver;
HACMSTREAM stream;
ACMSTREAMHEADER header;
/* Offset into input buffer to write next data */
int offset;
/* Number of bytes written */
int bytes_output;
/* From received caps */
int rate;
int channels;
/* Set in properties */
int selected_bitrate;
GstCaps * output_caps;
} ACMEnc;
typedef struct _ACMEncParams
{
HACMDRIVERID driverId;
HMODULE dll;
gchar * name;
} ACMEncParams;
static GstCaps *
acmenc_caps_from_format (WAVEFORMATEX * fmt)
{
return gst_riff_create_audio_caps (fmt->wFormatTag, NULL,
(gst_riff_strf_auds *) fmt, NULL, NULL, NULL);
}
gboolean acmenc_set_input_format (ACMEnc * enc, WAVEFORMATEX * infmt)
{
infmt->wFormatTag = WAVE_FORMAT_PCM;
infmt->nChannels = enc->channels;
infmt->nSamplesPerSec = enc->rate;
infmt->nAvgBytesPerSec = 2 * enc->channels * enc->rate;
infmt->nBlockAlign = 2 * enc->channels;
infmt->wBitsPerSample = 16;
infmt->cbSize = 0;
return TRUE;
}
BOOL CALLBACK acmenc_format_enum (HACMDRIVERID driverId, LPACMFORMATDETAILS fd,
DWORD_PTR dwInstance, DWORD fdwSupport)
{
ACMEnc * enc = (ACMEnc *) dwInstance;
int oldbrdiff, newbrdiff;
gboolean oldmatch, newmatch;
if (!enc->outfmt) {
/* First one is always the best so far */
enc->outfmt =
(WAVEFORMATEX *) g_malloc (fd->pwfx->cbSize + sizeof (WAVEFORMATEX));
memcpy (enc->outfmt, fd->pwfx, fd->pwfx->cbSize + sizeof (WAVEFORMATEX));
return TRUE;
}
/* We prefer a format with exact rate/channels match,
* and the closest bitrate match. Otherwise, we accept
* the closest bitrate match.
*/
newmatch = (enc->channels == fd->pwfx->nChannels) &&
(enc->rate == fd->pwfx->nSamplesPerSec);
oldmatch = (enc->outfmt->nChannels == enc->channels) &&
(enc->outfmt->nSamplesPerSec == enc->rate);
newbrdiff = abs (enc->selected_bitrate - fd->pwfx->nAvgBytesPerSec * 8);
oldbrdiff = abs (enc->selected_bitrate - enc->outfmt->nAvgBytesPerSec * 8);
if ((newmatch && (!oldmatch || (newbrdiff < oldbrdiff))) ||
(!newmatch && !oldmatch && (newbrdiff < oldbrdiff)))
{
g_free (enc->outfmt);
enc->outfmt =
(WAVEFORMATEX *) g_malloc (fd->pwfx->cbSize + sizeof (WAVEFORMATEX));
memcpy (enc->outfmt, fd->pwfx, fd->pwfx->cbSize + sizeof (WAVEFORMATEX));
}
/* Always return TRUE to continue enumeration */
return TRUE;
}
gboolean acmenc_set_format (ACMEnc * enc)
{
WAVEFORMATEX * in = NULL;
ACMFORMATDETAILS details;
MMRESULT res;
int maxSize;
/* Input is fixed */
acmenc_set_input_format (enc, &enc->infmt);
/* Select the closest output that matches */
res =
acmMetrics ((HACMOBJ) enc->driver, ACM_METRIC_MAX_SIZE_FORMAT, &maxSize);
/* Set the format to match what we'll be providing */
in = (WAVEFORMATEX *) g_malloc (maxSize);
acmenc_set_input_format (enc, in);
in->cbSize = (WORD) (maxSize - sizeof (*in));
details.cbStruct = sizeof (details);
details.dwFormatIndex = 0;
details.dwFormatTag = WAVE_FORMAT_UNKNOWN;
details.fdwSupport = 0;
details.pwfx = in;
details.cbwfx = maxSize;
/* We set enc->outfmt to the closest match in the callback */
res =
acmFormatEnum (enc->driver, &details, acmenc_format_enum, (DWORD_PTR) enc,
ACM_FORMATENUMF_CONVERT);
g_free (in);
if (res) {
GST_WARNING_OBJECT (enc, "Failed to enumerate formats");
return FALSE;
}
if (!enc->outfmt) {
GST_WARNING_OBJECT (enc, "No compatible output for input format");
return FALSE;
}
return TRUE;
}
static gboolean
acmenc_setup (ACMEnc * enc)
{
MMRESULT res;
ACMEncClass * encclass = (ACMEncClass *) G_OBJECT_GET_CLASS (enc);
int destBufferSize;
res = acmDriverOpen (&enc->driver, encclass->driverId, 0);
if (res) {
GST_WARNING ("Failed to open ACM driver: %d", res);
return FALSE;
}
if (!acmenc_set_format (enc))
return FALSE;
res =
acmStreamOpen (&enc->stream, enc->driver, &enc->infmt, enc->outfmt, 0, 0,
0, ACM_STREAMOPENF_NONREALTIME);
if (res) {
GST_WARNING_OBJECT (enc, "Failed to open ACM stream");
return FALSE;
}
enc->header.cbStruct = sizeof (ACMSTREAMHEADER);
enc->header.fdwStatus = 0;
enc->header.dwUser = 0;
enc->header.pbSrc = (BYTE *) g_malloc (ACM_BUFFER_SIZE);
enc->header.cbSrcLength = ACM_BUFFER_SIZE;
enc->header.cbSrcLengthUsed = 0;
enc->header.dwSrcUser = 0;
/* Ask what buffer size we need to use for our output */
acmStreamSize (enc->stream, ACM_BUFFER_SIZE, &destBufferSize,
ACM_STREAMSIZEF_SOURCE);
enc->header.pbDst = (BYTE *) g_malloc (destBufferSize);
enc->header.cbDstLength = destBufferSize;
enc->header.cbDstLengthUsed = 0;
enc->header.dwDstUser = 0;
res = acmStreamPrepareHeader (enc->stream, &enc->header, 0);
if (res) {
GST_WARNING_OBJECT (enc, "Failed to prepare ACM stream");
return FALSE;
}
enc->output_caps = acmenc_caps_from_format (enc->outfmt);
if (enc->output_caps) {
gst_pad_set_caps (enc->srcpad, enc->output_caps);
}
enc->is_setup = TRUE;
return TRUE;
}
static void
acmenc_teardown (ACMEnc * enc)
{
if (enc->outfmt) {
g_free (enc->outfmt);
enc->outfmt = NULL;
}
if (enc->output_caps) {
gst_caps_unref (enc->output_caps);
enc->output_caps = NULL;
}
if (enc->header.pbSrc)
g_free (enc->header.pbSrc);
if (enc->header.pbDst)
g_free (enc->header.pbDst);
memset (&enc->header, 0, sizeof (enc->header));
if (enc->stream) {
acmStreamClose (enc->stream, 0);
enc->stream = 0;
}
if (enc->driver) {
acmDriverClose (enc->driver, 0);
enc->driver = 0;
}
enc->bytes_output = 0;
enc->offset = 0;
enc->is_setup = FALSE;
}
static gboolean
acmenc_sink_setcaps (GstPad * pad, GstCaps * caps)
{
ACMEnc * enc = (ACMEnc *) GST_PAD_PARENT (pad);
GstStructure * structure;
gboolean ret;
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "channels", &enc->channels);
gst_structure_get_int (structure, "rate", &enc->rate);
if (enc->is_setup)
acmenc_teardown (enc);
ret = acmenc_setup (enc);
return ret;
}
static GstFlowReturn
acmenc_push_output (ACMEnc * enc)
{
GstFlowReturn ret = GST_FLOW_OK;
if (enc->header.cbDstLengthUsed > 0) {
GstBuffer * outbuf =
gst_buffer_new_and_alloc (enc->header.cbDstLengthUsed);
memcpy (GST_BUFFER_DATA (outbuf), enc->header.pbDst,
enc->header.cbDstLengthUsed);
if (enc->outfmt->nAvgBytesPerSec > 0) {
/* We have a bitrate, so we can create a timestamp, hopefully */
GST_BUFFER_TIMESTAMP (outbuf) =
gst_util_uint64_scale_int ( enc->bytes_output, GST_SECOND,
enc->outfmt->nAvgBytesPerSec);
}
enc->bytes_output += enc->header.cbDstLengthUsed;
GST_DEBUG_OBJECT (enc, "Pushing %d byte encoded buffer",
enc->header.cbDstLengthUsed);
ret = gst_pad_push (enc->srcpad, outbuf);
}
return ret;
}
static GstFlowReturn
acmenc_chain (GstPad * pad, GstBuffer * buf)
{
MMRESULT res;
ACMEnc * enc = (ACMEnc *) GST_PAD_PARENT (pad);
guchar * data = GST_BUFFER_DATA (buf);
gint len = GST_BUFFER_SIZE (buf);
int chunklen;
GstFlowReturn ret = GST_FLOW_OK;
while (len) {
chunklen = MIN (len, ACM_BUFFER_SIZE - enc->offset);
memcpy (enc->header.pbSrc + enc->offset, data, chunklen);
enc->header.cbSrcLength = enc->offset + chunklen;
data += chunklen;
len -= chunklen;
/* Now we have a buffer ready to go */
res =
acmStreamConvert (enc->stream, &enc->header,
ACM_STREAMCONVERTF_BLOCKALIGN);
if (res) {
GST_WARNING_OBJECT (enc, "Failed to encode data");
break;
}
if (enc->header.cbSrcLengthUsed > 0)
{
if (enc->header.cbSrcLengthUsed != enc->header.cbSrcLength) {
/* Only part of input consumed */
memmove (enc->header.pbSrc,
enc->header.pbSrc + enc->header.cbSrcLengthUsed,
enc->header.cbSrcLengthUsed);
enc->offset -= enc->header.cbSrcLengthUsed;
}
else
enc->offset = 0;
}
/* Write out any data produced */
acmenc_push_output (enc);
}
return ret;
}
GstFlowReturn acmenc_finish_stream (ACMEnc * enc)
{
MMRESULT res;
GstFlowReturn ret = GST_FLOW_OK;
int len;
/* Ensure any remaining input data is consumed */
len = enc->offset;
enc->header.cbSrcLength = len;
res =
acmStreamConvert (enc->stream, &enc->header,
ACM_STREAMCONVERTF_BLOCKALIGN | ACM_STREAMCONVERTF_END);
if (res) {
GST_WARNING_OBJECT (enc, "Failed to encode data");
return ret;
}
ret = acmenc_push_output (enc);
return ret;
}
static gboolean
acmenc_sink_event (GstPad * pad, GstEvent * event)
{
ACMEnc * enc = (ACMEnc *) GST_PAD_PARENT (pad);
gboolean res;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
acmenc_finish_stream (enc);
res = gst_pad_push_event (enc->srcpad, event);
break;
default:
res = gst_pad_push_event (enc->srcpad, event);
break;
}
return res;
}
static void
acmenc_dispose (GObject * obj)
{
ACMEnc * enc = (ACMEnc *) obj;
acmenc_teardown (enc);
G_OBJECT_CLASS (parent_class)->dispose (obj);
} static void
acmenc_init (ACMEnc * enc)
{
enc->sinkpad =
gst_pad_new_from_static_template (&acmenc_sink_template, "sink");
gst_pad_set_setcaps_function (enc->sinkpad,
GST_DEBUG_FUNCPTR (acmenc_sink_setcaps));
gst_pad_set_chain_function (enc->sinkpad, GST_DEBUG_FUNCPTR (acmenc_chain));
gst_pad_set_event_function (enc->sinkpad,
GST_DEBUG_FUNCPTR (acmenc_sink_event));
gst_element_add_pad (GST_ELEMENT (enc), enc->sinkpad);
enc->srcpad =
gst_pad_new_from_static_template (&acmenc_src_template, "src");
gst_element_add_pad (GST_ELEMENT (enc), enc->srcpad);
enc->selected_bitrate = DEFAULT_BITRATE;
} static void
acmenc_set_property (GObject * obj, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
ACMEnc * enc = (ACMEnc *) obj;
switch (prop_id) {
case ARG_BITRATE:
enc->selected_bitrate = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, prop_id, pspec);
}
}
static void
acmenc_get_property (GObject * obj, guint prop_id, GValue * value,
GParamSpec * pspec)
{
ACMEnc * enc = (ACMEnc *) obj;
switch (prop_id) {
case ARG_BITRATE:
g_value_set_int (value, enc->selected_bitrate);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, prop_id, pspec);
}
}
static void
acmenc_class_init (ACMEncClass * klass)
{
GObjectClass * gobjectclass = (GObjectClass *) klass;
parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
gobjectclass->dispose = acmenc_dispose;
gobjectclass->set_property = acmenc_set_property;
gobjectclass->get_property = acmenc_get_property;
g_object_class_install_property (gobjectclass, ARG_BITRATE,
g_param_spec_int ("bitrate", "Bitrate", "Bitrate to encode at (in bps)",
0, 1000000, DEFAULT_BITRATE, G_PARAM_READWRITE));
} static void
acmenc_base_init (ACMEncClass * klass)
{
GstElementClass * element_class = GST_ELEMENT_CLASS (klass);
GstElementDetails details;
ACMEncParams * params;
ACMDRIVERDETAILS driverdetails;
gchar * shortname, *longname;
MMRESULT res;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&acmenc_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&acmenc_src_template));
params =
(ACMEncParams *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
ACMENC_PARAMS_QDATA);
g_assert (params);
memset (&driverdetails, 0, sizeof (driverdetails));
driverdetails.cbStruct = sizeof (driverdetails);
res = acmDriverDetails (params->driverId, &driverdetails, 0);
if (res) {
GST_WARNING ("Could not get driver details: %d", res);
}
shortname =
g_utf16_to_utf8 (driverdetails.szShortName, -1, NULL, NULL, NULL);
longname = g_utf16_to_utf8 (driverdetails.szLongName, -1, NULL, NULL, NULL);
details.longname = g_strdup_printf ("ACM Encoder: %s", (shortname
&& *shortname) ? shortname : params->name);
details.klass = "Codec/Encoder/Audio";
details.description = g_strdup_printf ("ACM Encoder: %s", (longname
&& *longname) ? longname : params->name);
details.author = "Pioneers of the Inevitable <songbird@songbirdnest.com>";
gst_element_class_set_details (element_class, &details);
g_free (shortname);
g_free (longname);
g_free (details.longname);
g_free (details.description);
klass->driverId = params->driverId;
}
static ACMEncParams *
acmenc_open_driver (wchar_t * filename)
{
HACMDRIVER driver = NULL;
HACMDRIVERID driverid = NULL;
HMODULE mod = NULL;
FARPROC func;
MMRESULT res;
ACMEncParams * params;
mod = LoadLibrary (filename);
if (!mod) {
GST_WARNING ("Failed to load ACM");
goto done;
}
func = GetProcAddress (mod, "DriverProc");
if (!func) {
GST_WARNING ("Failed to find 'DriverProc' in ACM");
goto done;
}
res =
acmDriverAdd (&driverid, mod, (LPARAM) func, 0, ACM_DRIVERADDF_FUNCTION);
if (res) {
GST_WARNING ("Failed to add ACM driver: %d", res);
goto done;
}
params = g_new0 (ACMEncParams, 1);
params->dll = mod;
params->driverId = driverid;
return params;
done: if (driverid)
acmDriverRemove (driverid, 0);
if (mod)
FreeLibrary (mod);
return NULL;
}
static gboolean
acmenc_register_file (GstPlugin * plugin, wchar_t * filename)
{
ACMEncParams * params;
gchar * type_name, *name;
GType type;
GTypeInfo typeinfo = {
sizeof (ACMEncClass),
(GBaseInitFunc) acmenc_base_init, NULL,
(GClassInitFunc) acmenc_class_init, NULL, NULL, sizeof (ACMEnc),
0, (GInstanceInitFunc) acmenc_init, };
params = acmenc_open_driver (filename);
if (!params)
return FALSE;
/* Strip .acm off the end, convert to utf-8 */
name =
g_utf16_to_utf8 (filename, (glong) wcslen (filename) - 4, NULL, NULL,
NULL);
params->name = name;
type_name = g_strdup_printf ("acmenc_%s", name);
type = g_type_register_static (GST_TYPE_ELEMENT, type_name, &typeinfo, 0);
/* Store params in type qdata */
g_type_set_qdata (type, ACMENC_PARAMS_QDATA, (gpointer) params);
/* register type */
if (!gst_element_register (plugin, type_name, GST_RANK_NONE, type)) {
g_warning ("Failed to register %s", type_name);;
g_type_set_qdata (type, ACMENC_PARAMS_QDATA, NULL);
g_free (name);
g_free (type_name);
g_free (params);
return FALSE;
}
g_free (type_name);
return TRUE;
}
static gboolean
acmenc_register (GstPlugin * plugin)
{
int res;
wchar_t dirname[1024];
WIN32_FIND_DATA filedata;
HANDLE find;
res = GetSystemDirectory (dirname, sizeof (dirname) / sizeof (wchar_t));
if (!res || res > 1000) {
GST_WARNING ("Couldn't get system directory");
return FALSE;
}
wcscat (dirname, L"\\*.acm");
find = FindFirstFile (dirname, &filedata);
if (find == INVALID_HANDLE_VALUE) {
GST_WARNING ("Failed to find ACM files: %x", GetLastError ());
return FALSE;
}
do {
char *filename =
g_utf16_to_utf8 (filedata.cFileName, -1, NULL, NULL, NULL);
GST_INFO ("Registering ACM filter from file %s", filename);
if (acmenc_register_file (plugin, filedata.cFileName))
GST_INFO ("Loading filter from ACM '%s' succeeded", filename);
else
GST_WARNING ("Loading filter from ACM '%s' failed", filename);
g_free (filename);
} while (FindNextFile (find, &filedata));
FindClose (find);
return TRUE;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
gboolean res;
GST_DEBUG_CATEGORY_INIT (acmenc_debug, "acmenc", 0, "ACM Encoders");
GST_INFO ("Registering ACM encoders");
res = acmenc_register (plugin);
return res;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "acmenc",
"ACM Encoder wrapper", plugin_init, VERSION, "LGPL", "GStreamer",
"http://gstreamer.net/")