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ext/wavpack/: Add wavpack encoder element (#343131).

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Original commit message from CVS:
Patch by: Sebastian Dröge  <mail at slomosnail de>
* ext/wavpack/Makefile.am:
* ext/wavpack/gstwavpack.c: (plugin_init):
* ext/wavpack/gstwavpackcommon.h:
* ext/wavpack/gstwavpackenc.c: (gst_wavpack_enc_mode_get_type),
(gst_wavpack_enc_correction_mode_get_type),
(gst_wavpack_enc_joint_stereo_mode_get_type),
(gst_wavpack_enc_base_init), (gst_wavpack_enc_class_init),
(gst_wavpack_enc_init), (gst_wavpack_enc_dispose),
(gst_wavpack_enc_sink_set_caps), (gst_wavpack_enc_set_wp_config),
(gst_wavpack_enc_format_samples), (gst_wavpack_enc_push_block),
(gst_wavpack_enc_chain), (gst_wavpack_enc_rewrite_first_block),
(gst_wavpack_enc_sink_event), (gst_wavpack_enc_change_state),
(gst_wavpack_enc_set_property), (gst_wavpack_enc_get_property),
(gst_wavpack_enc_plugin_init):
* ext/wavpack/gstwavpackenc.h:
* ext/wavpack/md5.c:
* ext/wavpack/md5.h:
Add wavpack encoder element (#343131).
This commit is contained in:
Sebastian Dröge 2006-06-10 15:33:18 +00:00 committed by Tim-Philipp Müller
parent 42a1b1e756
commit b9ea984f76
7 changed files with 1411 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
ext/wavpack/Makefile.am
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@ -1,13 +1,22 @@
plugin_LTLIBRARIES = libgstwavpack.la plugin_LTLIBRARIES = libgstwavpack.la
libgstwavpack_la_SOURCES = gstwavpack.c \ libgstwavpack_la_SOURCES = \
gstwavpack.c \
gstwavpackcommon.c \ gstwavpackcommon.c \
gstwavpackparse.c \ gstwavpackparse.c \
gstwavpackdec.c gstwavpackdec.c \
gstwavpackenc.c \
md5.c
libgstwavpack_la_CFLAGS = $(GST_CFLAGS) $(WAVPACK_CFLAGS) libgstwavpack_la_CFLAGS = $(GST_CFLAGS) $(WAVPACK_CFLAGS)
libgstwavpack_la_LIBADD = $(GST_LIBS) $(WAVPACK_LIBS) libgstwavpack_la_LIBADD = $(GST_LIBS) $(WAVPACK_LIBS)
libgstwavpack_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) libgstwavpack_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstwavpackparse.h gstwavpackdec.h gstwavpackcommon.h noinst_HEADERS = \
gstwavpackparse.h \
gstwavpackdec.h \
gstwavpackenc.h \
gstwavpackcommon.h \
md5.h

6
ext/wavpack/gstwavpack.c
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@ -25,16 +25,18 @@
#include "gstwavpackparse.h" #include "gstwavpackparse.h"
#include "gstwavpackdec.h" #include "gstwavpackdec.h"
#include "gstwavpackenc.h"
static gboolean static gboolean
plugin_init (GstPlugin * plugin) plugin_init (GstPlugin * plugin)
{ {
return (gst_wavpack_parse_plugin_init (plugin) return (gst_wavpack_parse_plugin_init (plugin)
&& gst_wavpack_dec_plugin_init (plugin)); && gst_wavpack_dec_plugin_init (plugin)
&& gst_wavpack_enc_plugin_init (plugin));
} }
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR, GST_VERSION_MINOR,
"wavpack", "wavpack",
"Wavpack lossless/lossy audio format handling", "Wavpack lossless/lossy audio format handling",
plugin_init, VERSION, "LGPL", "gst-wavpack", "http://www.wavpack.com") plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

1002
ext/wavpack/gstwavpackenc.c Normal file
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93
ext/wavpack/gstwavpackenc.h Normal file
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@ -0,0 +1,93 @@
/* GStreamer Wavpack encoder plugin
* Copyrigh (c) 2006 Sebastian Dröge <mail@slomosnail.de>
*
* gstwavpackenc.h: Wavpack audio encoder
*
* 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.
*/
#ifndef __GST_WAVPACK_ENC_H__
#define __GST_WAVPACK_ENC_H__
#include <gst/gst.h>
#include <wavpack/wavpack.h>
#include <wavpack/md5.h>
G_BEGIN_DECLS
/* #define's don't like whitespacey bits */
#define GST_TYPE_WAVPACK_ENC \
(gst_wavpack_enc_get_type())
#define GST_WAVPACK_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPACK_ENC,GstWavpackEnc))
#define GST_WAVPACK_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPACK_ENC,GstWavpackEnc))
#define GST_IS_WAVPACK_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPACK_ENC))
#define GST_IS_WAVPACK_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPACK_ENC))
typedef struct _GstWavpackEnc GstWavpackEnc;
typedef struct _GstWavpackEncClass GstWavpackEncClass;
typedef struct
{
gboolean correction;
GstWavpackEnc *wavpack_enc;
} write_id;
struct _GstWavpackEnc
{
GstElement element;
GstPad *sinkpad, *srcpad;
GstPad *wvcsrcpad;
GstFlowReturn srcpad_last_return;
GstFlowReturn wvcsrcpad_last_return;
WavpackConfig *wp_config;
WavpackContext *wp_context;
gint samplerate;
gint channels;
gint width;
write_id *wv_id, *wvc_id;
guint mode;
gdouble bitrate;
guint correction_mode;
gboolean md5;
MD5_CTX *md5_context;
gboolean extra_processing;
guint joint_stereo_mode;
void *first_block;
int32_t first_block_size;
};
struct _GstWavpackEncClass
{
GstElementClass parent;
};
GType gst_wavpack_enc_get_type (void);
gboolean gst_wavpack_enc_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_WAVPACK_ENC_H__ */

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ext/wavpack/md5.c Normal file
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/*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*/
/* Brutally hacked by John Walker back from ANSI C to K&R (no
prototypes) to maintain the tradition that Netfone will compile
with Sun's original "cc". */
#include <string.h> /* for memcpy() */
#include <glib.h>
#include "md5.h"
#if G_BYTE_ORDER == G_BIG_ENDIAN
#define HIGHFIRST
#endif
#ifndef HIGHFIRST
#define byteReverse(buf, len) /* Nothing */
#else
/*
* Note: this code is harmless on little-endian machines.
*/
void
byteReverse (buf, longs)
unsigned char *buf;
unsigned longs;
{
uint32 t;
do {
t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
((unsigned) buf[1] << 8 | buf[0]);
*(uint32 *) buf = t;
buf += 4;
} while (--longs);
}
#endif
/*
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
* initialization constants.
*/
void
MD5Init (ctx)
struct MD5Context *ctx;
{
ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;
ctx->bits[0] = 0;
ctx->bits[1] = 0;
}
/*
* Update context to reflect the concatenation of another buffer full
* of bytes.
*/
void
MD5Update (ctx, buf, len)
struct MD5Context *ctx;
unsigned char *buf;
unsigned len;
{
uint32 t;
/* Update bitcount */
t = ctx->bits[0];
if ((ctx->bits[0] = t + ((uint32) len << 3)) < t)
ctx->bits[1]++; /* Carry from low to high */
ctx->bits[1] += len >> 29;
t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
/* Handle any leading odd-sized chunks */
if (t) {
unsigned char *p = (unsigned char *) ctx->in + t;
t = 64 - t;
if (len < t) {
memcpy (p, buf, len);
return;
}
memcpy (p, buf, t);
byteReverse (ctx->in, 16);
MD5Transform (ctx->buf, (uint32 *) ctx->in);
buf += t;
len -= t;
}
/* Process data in 64-byte chunks */
while (len >= 64) {
memcpy (ctx->in, buf, 64);
byteReverse (ctx->in, 16);
MD5Transform (ctx->buf, (uint32 *) ctx->in);
buf += 64;
len -= 64;
}
/* Handle any remaining bytes of data. */
memcpy (ctx->in, buf, len);
}
/*
* Final wrapup - pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first)
*/
void
MD5Final (digest, ctx)
unsigned char digest[16];
struct MD5Context *ctx;
{
unsigned count;
unsigned char *p;
/* Compute number of bytes mod 64 */
count = (ctx->bits[0] >> 3) & 0x3F;
/* Set the first char of padding to 0x80. This is safe since there is
always at least one byte free */
p = ctx->in + count;
*p++ = 0x80;
/* Bytes of padding needed to make 64 bytes */
count = 64 - 1 - count;
/* Pad out to 56 mod 64 */
if (count < 8) {
/* Two lots of padding: Pad the first block to 64 bytes */
memset (p, 0, count);
byteReverse (ctx->in, 16);
MD5Transform (ctx->buf, (uint32 *) ctx->in);
/* Now fill the next block with 56 bytes */
memset (ctx->in, 0, 56);
} else {
/* Pad block to 56 bytes */
memset (p, 0, count - 8);
}
byteReverse (ctx->in, 14);
/* Append length in bits and transform */
((uint32 *) ctx->in)[14] = ctx->bits[0];
((uint32 *) ctx->in)[15] = ctx->bits[1];
MD5Transform (ctx->buf, (uint32 *) ctx->in);
byteReverse ((unsigned char *) ctx->buf, 4);
memcpy (digest, ctx->buf, 16);
memset (ctx, 0, sizeof (ctx)); /* In case it's sensitive */
}
/* The four core functions - F1 is optimized somewhat */
/* #define F1(x, y, z) (x & y | ~x & z) */
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
/* This is the central step in the MD5 algorithm. */
#define MD5STEP(f, w, x, y, z, data, s) \
( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
/*
* The core of the MD5 algorithm, this alters an existing MD5 hash to
* reflect the addition of 16 longwords of new data. MD5Update blocks
* the data and converts bytes into longwords for this routine.
*/
void
MD5Transform (buf, in)
uint32 buf[4];
uint32 in[16];
{
register uint32 a, b, c, d;
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
MD5STEP (F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP (F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP (F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP (F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP (F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP (F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP (F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP (F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP (F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP (F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP (F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP (F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP (F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP (F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP (F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP (F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP (F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP (F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP (F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP (F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP (F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP (F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP (F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP (F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP (F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP (F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP (F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP (F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP (F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP (F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP (F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP (F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP (F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP (F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP (F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP (F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP (F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP (F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP (F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP (F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP (F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP (F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP (F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP (F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP (F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP (F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP (F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP (F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP (F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP (F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP (F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP (F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP (F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP (F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP (F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP (F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP (F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP (F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP (F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP (F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP (F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP (F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP (F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP (F4, b, c, d, a, in[9] + 0xeb86d391, 21);
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}

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ext/wavpack/md5.h Normal file
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#ifndef MD5_H
#define MD5_H
#include "_stdint.h"
#ifndef uint32
typedef uint32_t uint32;
#endif
struct MD5Context
{
uint32 buf[4];
uint32 bits[2];
unsigned char in[64];
};
extern void MD5Init (struct MD5Context *ctx);
extern void MD5Update (struct MD5Context *ctx, unsigned char *buf,
unsigned len);
extern void MD5Final (unsigned char digest[16], struct MD5Context *ctx);
extern void MD5Transform (uint32 buf[4], uint32 in[16]);
/*
* This is needed to make RSAREF happy on some MS-DOS compilers.
*/
typedef struct MD5Context MD5_CTX;
#endif /* !MD5_H */