mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
629 lines
18 KiB
C
629 lines
18 KiB
C
/* 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);
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
static 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, (LPDWORD) & 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 %lu 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;
|
|
}
|
|
|
|
static 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);
|
|
ACMEncParams *params;
|
|
ACMDRIVERDETAILS driverdetails;
|
|
gchar *shortname, *longname, *detail, *description;
|
|
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 ((gunichar2 *) driverdetails.szShortName, -1, NULL, NULL,
|
|
NULL);
|
|
longname =
|
|
g_utf16_to_utf8 ((gunichar2 *) driverdetails.szLongName, -1, NULL, NULL,
|
|
NULL);
|
|
detail = g_strdup_printf ("ACM Encoder: %s", (shortname
|
|
&& *shortname) ? shortname : params->name);
|
|
description = g_strdup_printf ("ACM Encoder: %s", (longname
|
|
&& *longname) ? longname : params->name);
|
|
gst_element_class_set_details_simple (element_class, detail,
|
|
"Codec/Encoder/Audio", description,
|
|
"Pioneers of the Inevitable <songbird@songbirdnest.com>");
|
|
g_free (shortname);
|
|
g_free (longname);
|
|
g_free (description);
|
|
g_free (detail);
|
|
klass->driverId = params->driverId;
|
|
}
|
|
|
|
static ACMEncParams *
|
|
acmenc_open_driver (wchar_t * filename)
|
|
{
|
|
HACMDRIVERID driverid = NULL;
|
|
HMODULE mod = NULL;
|
|
FARPROC func;
|
|
MMRESULT res;
|
|
ACMEncParams *params;
|
|
mod = LoadLibraryW (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_DATAW filedata;
|
|
HANDLE find;
|
|
res = GetSystemDirectoryW (dirname, sizeof (dirname) / sizeof (wchar_t));
|
|
if (!res || res > 1000) {
|
|
GST_WARNING ("Couldn't get system directory");
|
|
return FALSE;
|
|
}
|
|
wcscat (dirname, L"\\*.acm");
|
|
find = FindFirstFileW (dirname, &filedata);
|
|
if (find == INVALID_HANDLE_VALUE) {
|
|
GST_WARNING ("Failed to find ACM files: %lx", GetLastError ());
|
|
return FALSE;
|
|
}
|
|
|
|
do {
|
|
char *filename =
|
|
g_utf16_to_utf8 ((gunichar2 *) 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 (FindNextFileW (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/")
|