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-rw-r--r--sys/acmenc/acmenc.c1113
1 files changed, 568 insertions, 545 deletions
diff --git a/sys/acmenc/acmenc.c b/sys/acmenc/acmenc.c
index 16b37d69..7ba88fb6 100644
--- a/sys/acmenc/acmenc.c
+++ b/sys/acmenc/acmenc.c
@@ -1,601 +1,624 @@
-/* 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
+/* 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
+
+#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
+ 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 */
+ 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 */
+
+ /* Number of bytes written */
int bytes_output;
-
- /* From received caps */
+
+ /* From received caps */
int rate;
- int channels;
-
- /* Set in properties */
+ int channels;
+
+ /* Set in properties */
int selected_bitrate;
- GstCaps * output_caps;
- } ACMEnc;
- typedef struct _ACMEncParams
+ GstCaps *output_caps;
+} ACMEnc;
+
+typedef struct _ACMEncParams
{
- HACMDRIVERID driverId;
- HMODULE dll;
- gchar * name;
- } ACMEncParams;
- static GstCaps *
-acmenc_caps_from_format (WAVEFORMATEX * fmt)
+ HACMDRIVERID driverId;
+ HMODULE dll;
+ gchar *name;
+} ACMEncParams;
+
+static GstCaps *
+acmenc_caps_from_format (WAVEFORMATEX * fmt)
{
- return gst_riff_create_audio_caps (fmt->wFormatTag, NULL,
+ 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)
+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)
+ 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 =
+ 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) &&
+ 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) &&
+ 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 =
+ 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)
+ 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 =
+ 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 =
+
+ /* 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)
+ 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,
+ 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,
+ 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)
+ 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)
+ 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)
+ 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,
+ 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,
+ 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->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)
+ 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 =
+ 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,
+ 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;
- }
-
+ 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)
+ 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 =
+ 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)
+ 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 *) 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 *enc = (ACMEnc *) obj;
+ acmenc_teardown (enc);
+ G_OBJECT_CLASS (parent_class)->dispose (obj);
+} static void
-acmenc_init (ACMEnc * enc)
+acmenc_init (ACMEnc * enc)
{
- enc->sinkpad =
+ 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)
+ 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:
+ 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)
+ 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)
+ 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),
+ 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
+ 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
+ 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)
+ 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 =
+ 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)
+ 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,
+ 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)
+ 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;
- }
-
+ 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);
-
+ 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)
+ 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/")
+ 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/")
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-28 16:23:40 +0000