FLAC read support for oggenc. Comments from the FLAC are preserved by

default.

Special thanks to OldMan, adiabatic, and smack from #vorbis for sponsoring
this feature.

svn path=/trunk/vorbis-tools/; revision=5246

configure.in

@@ -133,9 +133,9 @@ AC_CHECK_LIB(FLAC, [FLAC__stream_decoder_process_single],
   have_libFLAC=no, [$FLAC_LIBS]
 )
 AC_CHECK_LIB(OggFLAC, [OggFLAC__stream_decoder_new],
-  [FLAC_LIBS="-lOggFLAC $FLAC_LIBS"],
+  [FLAC_LIBS="-lOggFLAC $FLAC_LIBS $OGG_LIBS"],
   AC_MSG_WARN([libOggFLAC missing])
-  have_libFLAC=no, [$FLAC_LIBS]
+  have_libFLAC=no, [$FLAC_LIBS $OGG_LIBS]
 )
 AC_CHECK_HEADER(FLAC/stream_decoder.h,,
   AC_MSG_WARN(libFLAC headers missing)
@@ -209,10 +209,13 @@ if test "x$build_ogg123" = xyes; then
   OPT_SUBDIRS="$OPT_SUBDIRS ogg123"
   if test "x$have_libFLAC" = xyes; then
     OGG123_FLAC_OBJS='flac_format.$(OBJEXT) easyflac.$(OBJEXT)'
+    OGGENC_FLAC_OBJS='flac.$(OBJEXT) easyflac.$(OBJEXT)'
   else
     OGG123_FLAC_OBJS=''
+    OGGENC_FLAC_OBJS=''
   fi
   AC_SUBST(OGG123_FLAC_OBJS)
+  AC_SUBST(OGGENC_FLAC_OBJS)
   if test "x$have_libspeex" = xyes; then
     OGG123_SPEEX_OBJS='speex_format.$(OBJEXT)'
   else
@@ -249,8 +252,22 @@ AC_SUBST(I18N_LIBS)
 
 AC_OUTPUT(Makefile intl/Makefile po/Makefile.in include/Makefile share/Makefile win32/Makefile oggdec/Makefile oggenc/Makefile oggenc/man/Makefile ogg123/Makefile vorbiscomment/Makefile vcut/Makefile ogginfo/Makefile debian/Makefile)
 
+if test "x$build_oggenc" = xyes -a "x$have_libFLAC" != xyes; then
+    AC_MSG_WARN([FLAC and OggFLAC libraries or headers missing, oggenc 
+will NOT be built with FLAC read support.])
+fi
+
 if test "x$build_ogg123" != xyes; then
     AC_MSG_WARN([Prerequisites for ogg123 not met, ogg123 will be skipped.
-    Please ensure that you have POSIX threads, libcurl and libao libraries and
-    headers present if you would like to build ogg123.])
+Please ensure that you have POSIX threads, libcurl and libao libraries and
+headers present if you would like to build ogg123.])
+else
+    if test "x$have_libFLAC" != xyes; then
+        AC_MSG_WARN([FLAC and OggFLAC libraries or headers missing, ogg123 
+will NOT be built with FLAC read support.])
+    fi
+    if test "x$have_libspeex" != xyes; then
+        AC_MSG_WARN([Speex libraries or headers missing, ogg123 will NOT be 
+built with FLAC read support.])
+    fi         
 fi

oggenc/Makefile.am

@@ -4,9 +4,6 @@ AUTOMAKE_OPTIONS = foreign
 
 SUBDIRS = man
 
-oggencsources = oggenc.c audio.c encode.c platform.c \
-                 audio.h encode.h platform.h resample.c resample.h
-
 datadir = @datadir@
 localedir = $(datadir)/locale
 DEFS = -DLOCALEDIR=\"$(localedir)\" @DEFS@
@@ -15,13 +12,16 @@ bin_PROGRAMS = oggenc
 
 INCLUDES = @SHARE_CFLAGS@ @OGG_CFLAGS@ @VORBIS_CFLAGS@ @I18N_CFLAGS@
 
-oggenc_LDADD = @SHARE_LIBS@ \
+oggenc_LDADD = @OGGENC_FLAC_OBJS@ @SHARE_LIBS@ \
 	       @VORBISENC_LIBS@ @VORBIS_LIBS@ @OGG_LIBS@ \
-	       @LIBICONV@ @I18N_LIBS@
-oggenc_DEPENDENCIES = @SHARE_LIBS@
+	       @LIBICONV@ @I18N_LIBS@ @FLAC_LIBS@
 
-oggenc_SOURCES = $(oggencsources)
+oggenc_DEPENDENCIES = @OGGENC_FLAC_OBJS@ @SHARE_LIBS@
+
+oggenc_SOURCES = oggenc.c audio.c encode.c platform.c \
+                 audio.h encode.h platform.h resample.c resample.h
 
+EXTRA_oggenc_SOURCES = flac.c flac.h easyflac.c easyflac.h
 
 debug:
 	$(MAKE) all CFLAGS="@DEBUG@"

oggenc/audio.c

@@ -19,6 +19,10 @@
 #include "i18n.h"
 #include "resample.h"
 
+#ifdef HAVE_LIBFLAC
+#include "flac.h"
+#endif
+
 #define WAV_HEADER_SIZE 44
 
 /* Macros to read header data */
@@ -38,6 +42,10 @@
 input_format formats[] = {
 	{wav_id, 12, wav_open, wav_close, "wav", N_("WAV file reader")},
 	{aiff_id, 12, aiff_open, wav_close, "aiff", N_("AIFF/AIFC file reader")},
+#ifdef HAVE_LIBFLAC
+	{flac_id,     4, flac_open, flac_close, "flac", N_("FLAC file reader")},
+	{oggflac_id, 32, flac_open, flac_close, "ogg", N_("Ogg FLAC file reader")},
+#endif
 	{NULL, 0, NULL, NULL, NULL, NULL}
 };
 

oggenc/easyflac.c

+/* EasyFLAC - A thin decoding wrapper around libFLAC and libOggFLAC to
+ * make your code less ugly.  See easyflac.h for explanation.
+ *
+ * Copyright 2003 - Stan Seibert <volsung@xiph.org>
+ * This code is licensed under a BSD style license:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdlib.h>
+#include "easyflac.h"
+
+
+FLAC__bool EasyFLAC__is_oggflac(EasyFLAC__StreamDecoder *decoder)
+{
+	return decoder->is_oggflac;
+}
+
+
+EasyFLAC__StreamDecoder *EasyFLAC__stream_decoder_new(FLAC__bool is_oggflac)
+{
+	EasyFLAC__StreamDecoder *decoder = malloc(sizeof(EasyFLAC__StreamDecoder));
+
+	if (decoder != NULL)
+	{
+		decoder->is_oggflac = is_oggflac;
+		
+		if (decoder->is_oggflac)
+			decoder->oggflac = OggFLAC__stream_decoder_new();
+		else
+			decoder->flac = FLAC__stream_decoder_new();
+
+		if (  (decoder->is_oggflac && decoder->oggflac == NULL)
+		    ||(!decoder->is_oggflac && decoder->flac == NULL)  )
+		{
+			free(decoder);
+			decoder = NULL;
+		}
+	}
+
+	return decoder;
+}
+
+
+void EasyFLAC__stream_decoder_delete(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		OggFLAC__stream_decoder_delete(decoder->oggflac);
+	else
+		FLAC__stream_decoder_delete(decoder->flac);
+
+	free(decoder);
+}
+
+
+/* Wrappers around the callbacks for OggFLAC */
+
+FLAC__StreamDecoderReadStatus oggflac_read_callback(const OggFLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	return (*e_decoder->callbacks.read)(e_decoder, buffer, bytes, e_decoder->callbacks.client_data);
+}
+
+
+FLAC__StreamDecoderWriteStatus oggflac_write_callback(const OggFLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	return (*(e_decoder->callbacks.write))(e_decoder, frame, buffer, e_decoder->callbacks.client_data);
+}
+
+
+void oggflac_metadata_callback(const OggFLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	(*e_decoder->callbacks.metadata)(e_decoder, metadata, e_decoder->callbacks.client_data);
+}
+
+
+void oggflac_error_callback(const OggFLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	(*e_decoder->callbacks.error)(e_decoder, status, e_decoder->callbacks.client_data);
+}
+
+
+/* Wrappers around the callbacks for FLAC */
+
+FLAC__StreamDecoderReadStatus flac_read_callback(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	return (*e_decoder->callbacks.read)(e_decoder, buffer, bytes, e_decoder->callbacks.client_data);
+}
+
+
+FLAC__StreamDecoderWriteStatus flac_write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	return (*e_decoder->callbacks.write)(e_decoder, frame, buffer, e_decoder->callbacks.client_data);
+}
+
+
+void flac_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	(*e_decoder->callbacks.metadata)(e_decoder, metadata, e_decoder->callbacks.client_data);
+}
+
+
+void flac_error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+	EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
+
+	(*e_decoder->callbacks.error)(e_decoder, status, e_decoder->callbacks.client_data);
+}
+
+
+FLAC__bool EasyFLAC__set_read_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderReadCallback value)
+{
+	decoder->callbacks.read = value;
+
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_read_callback(decoder->oggflac, &oggflac_read_callback);
+	else
+		return FLAC__stream_decoder_set_read_callback(decoder->flac, &flac_read_callback);
+}
+
+
+FLAC__bool EasyFLAC__set_write_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderWriteCallback value)
+{
+	decoder->callbacks.write = value;
+
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_write_callback(decoder->oggflac, &oggflac_write_callback);
+	else
+		return FLAC__stream_decoder_set_write_callback(decoder->flac, &flac_write_callback);
+}
+
+
+FLAC__bool EasyFLAC__set_metadata_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderMetadataCallback value)
+{
+	decoder->callbacks.metadata = value;
+
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_callback(decoder->oggflac, &oggflac_metadata_callback);
+	else
+		return FLAC__stream_decoder_set_metadata_callback(decoder->flac, &flac_metadata_callback);
+}
+
+
+FLAC__bool EasyFLAC__set_error_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderErrorCallback value)
+{
+	decoder->callbacks.error = value;
+
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_error_callback(decoder->oggflac, &oggflac_error_callback);
+	else
+		return FLAC__stream_decoder_set_error_callback(decoder->flac, &flac_error_callback);
+}
+
+
+FLAC__bool EasyFLAC__set_client_data(EasyFLAC__StreamDecoder *decoder, void *value)
+{
+	decoder->callbacks.client_data = value;
+	
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_client_data(decoder->oggflac, decoder);
+	else
+		return FLAC__stream_decoder_set_client_data(decoder->flac, decoder);
+}
+
+
+FLAC__bool EasyFLAC__set_metadata_respond(EasyFLAC__StreamDecoder *decoder, FLAC__MetadataType type)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_respond(decoder->oggflac, type);
+	else
+		return FLAC__stream_decoder_set_metadata_respond(decoder->flac, type);
+}
+
+
+FLAC__bool EasyFLAC__set_metadata_respond_application(EasyFLAC__StreamDecoder *decoder, const FLAC__byte id[4])
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_respond_application(decoder->oggflac, id);
+	else
+		return FLAC__stream_decoder_set_metadata_respond_application(decoder->flac, id);
+}
+
+
+FLAC__bool EasyFLAC__set_metadata_respond_all(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_respond_all(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_set_metadata_respond_all(decoder->flac);
+}
+
+
+FLAC__bool EasyFLAC__set_metadata_ignore(EasyFLAC__StreamDecoder *decoder, FLAC__MetadataType type)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_ignore(decoder->oggflac, type);
+	else
+		return FLAC__stream_decoder_set_metadata_ignore(decoder->flac, type);
+}
+
+
+FLAC__bool EasyFLAC__set_metadata_ignore_application(EasyFLAC__StreamDecoder *decoder, const FLAC__byte id[4])
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_ignore_application(decoder->oggflac, id);
+	else
+		return FLAC__stream_decoder_set_metadata_ignore_application(decoder->flac, id);
+}
+
+FLAC__bool EasyFLAC__set_metadata_ignore_all(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_set_metadata_ignore_all(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_set_metadata_ignore_all(decoder->flac);
+}
+
+
+FLAC__StreamDecoderState EasyFLAC__get_state(const EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_get_FLAC_stream_decoder_state(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_get_state(decoder->flac);
+}
+
+
+unsigned EasyFLAC__get_channels(const EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_get_channels(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_get_channels(decoder->flac);
+}
+
+
+FLAC__ChannelAssignment EasyFLAC__get_channel_assignment(const EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_get_channel_assignment(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_get_channel_assignment(decoder->flac);
+}
+
+
+unsigned EasyFLAC__get_bits_per_sample(const EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_get_bits_per_sample(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_get_bits_per_sample(decoder->flac);
+}
+
+
+unsigned EasyFLAC__get_sample_rate(const EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_get_sample_rate(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_get_sample_rate(decoder->flac);
+}
+
+
+unsigned EasyFLAC__get_blocksize(const EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_get_blocksize(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_get_blocksize(decoder->flac);
+}
+
+
+FLAC__StreamDecoderState EasyFLAC__init(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+	{
+		OggFLAC__stream_decoder_init(decoder->oggflac);
+		return OggFLAC__stream_decoder_get_FLAC_stream_decoder_state(decoder->oggflac);
+	}
+	else
+		return FLAC__stream_decoder_init(decoder->flac);
+}
+
+
+void EasyFLAC__finish(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		OggFLAC__stream_decoder_finish(decoder->oggflac);
+	else
+		FLAC__stream_decoder_finish(decoder->flac);
+}
+
+
+FLAC__bool EasyFLAC__flush(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_flush(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_flush(decoder->flac);
+}
+
+
+FLAC__bool EasyFLAC__reset(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_reset(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_reset(decoder->flac);
+}
+
+
+FLAC__bool EasyFLAC__process_single(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_process_single(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_process_single(decoder->flac);
+}
+
+
+FLAC__bool EasyFLAC__process_until_end_of_metadata(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_process_until_end_of_metadata(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_process_until_end_of_metadata(decoder->flac);
+}
+
+
+FLAC__bool EasyFLAC__process_until_end_of_stream(EasyFLAC__StreamDecoder *decoder)
+{
+	if (decoder->is_oggflac)
+		return OggFLAC__stream_decoder_process_until_end_of_stream(decoder->oggflac);
+	else
+		return FLAC__stream_decoder_process_until_end_of_stream(decoder->flac);
+}

oggenc/easyflac.h

+/* EasyFLAC - A thin decoding wrapper around libFLAC and libOggFLAC to
+ * make your code less ugly.
+ *
+ * Copyright 2003 - Stan Seibert <volsung@xiph.org>
+ * This code is licensed under a BSD style license:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************
+ *
+ * The motivation for this wrapper is to avoid issues where you need to
+ * decode both FLAC and Ogg FLAC but don't want to enclose all of your code
+ * in enormous if blocks where the body of the two branches is essentially 
+ * the same.  For example, you don't want to do something like this:
+ *
+ *  if (is_ogg_flac)
+ *  {
+ *      OggFLAC__blah_blah();
+ *      OggFLAC__more_stuff();
+ *  }
+ *  else
+ *  {
+ *      FLAC__blah_blah();
+ *      FLAC__more_stuff();
+ *  }
+ * 
+ * when you really just want this:
+ *
+ * EasyFLAC__blah_blah();
+ * EasyFLAC__more_stuff();
+ *
+ * This is even more cumbersome when you have to deal with constants.
+ *
+ * EasyFLAC uses essentially the same API as
+ * FLAC__stream_decoder with two additions:
+ * 
+ * - EasyFLAC__is_oggflac() for those rare occassions when you might
+ * need to distiguish the difference cases.
+ *
+ * - EasyFLAC__stream_decoder_new() takes a parameter to select when
+ * you are reading FLAC or Ogg FLAC.
+ *
+ * The constants are all FLAC__stream_decoder_*.
+ *
+ * WARNING: Always call EasyFLAC__set_client_data() even if all you
+ * want to do is set the client data to NULL.
+ */
+
+#ifndef __EASYFLAC_H
+#define __EASYFLAC_H
+
+#include <FLAC/stream_decoder.h>
+#include <OggFLAC/stream_decoder.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef struct EasyFLAC__StreamDecoder  EasyFLAC__StreamDecoder;
+
+
+typedef FLAC__StreamDecoderReadStatus (*EasyFLAC__StreamDecoderReadCallback)(const EasyFLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
+typedef FLAC__StreamDecoderWriteStatus (*EasyFLAC__StreamDecoderWriteCallback)(const EasyFLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+typedef void (*EasyFLAC__StreamDecoderMetadataCallback)(const EasyFLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+typedef void (*EasyFLAC__StreamDecoderErrorCallback)(const EasyFLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+
+struct EasyFLAC__StreamDecoder {
+	FLAC__bool is_oggflac;
+	FLAC__StreamDecoder *flac;
+	OggFLAC__StreamDecoder *oggflac;
+	struct {
+		EasyFLAC__StreamDecoderReadCallback     read;
+		EasyFLAC__StreamDecoderWriteCallback    write;
+		EasyFLAC__StreamDecoderMetadataCallback metadata;
+		EasyFLAC__StreamDecoderErrorCallback    error;
+		void *client_data;
+	} callbacks;
+};
+
+
+
+FLAC__bool EasyFLAC__is_oggflac(EasyFLAC__StreamDecoder *decoder);
+
+EasyFLAC__StreamDecoder *EasyFLAC__stream_decoder_new(FLAC__bool is_oggflac);
+void EasyFLAC__stream_decoder_delete(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__set_read_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderReadCallback value);
+FLAC__bool EasyFLAC__set_write_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderWriteCallback value);
+FLAC__bool EasyFLAC__set_metadata_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderMetadataCallback value);
+FLAC__bool EasyFLAC__set_error_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderErrorCallback value);
+FLAC__bool EasyFLAC__set_client_data(EasyFLAC__StreamDecoder *decoder, void *value);
+FLAC__bool EasyFLAC__set_metadata_respond(EasyFLAC__StreamDecoder *decoder, FLAC__MetadataType type);
+FLAC__bool EasyFLAC__set_metadata_respond_application(EasyFLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
+FLAC__bool EasyFLAC__set_metadata_respond_all(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__set_metadata_ignore(EasyFLAC__StreamDecoder *decoder, FLAC__MetadataType type);
+FLAC__bool EasyFLAC__set_metadata_ignore_application(EasyFLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
+FLAC__bool EasyFLAC__set_metadata_ignore_all(EasyFLAC__StreamDecoder *decoder);
+FLAC__StreamDecoderState EasyFLAC__get_state(const EasyFLAC__StreamDecoder *decoder);
+unsigned EasyFLAC__get_channels(const EasyFLAC__StreamDecoder *decoder);
+FLAC__ChannelAssignment EasyFLAC__get_channel_assignment(const EasyFLAC__StreamDecoder *decoder);
+unsigned EasyFLAC__get_bits_per_sample(const EasyFLAC__StreamDecoder *decoder);
+unsigned EasyFLAC__get_sample_rate(const EasyFLAC__StreamDecoder *decoder);
+unsigned EasyFLAC__get_blocksize(const EasyFLAC__StreamDecoder *decoder);
+FLAC__StreamDecoderState EasyFLAC__init(EasyFLAC__StreamDecoder *decoder);
+void EasyFLAC__finish(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__flush(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__reset(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__process_single(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__process_until_end_of_metadata(EasyFLAC__StreamDecoder *decoder);
+FLAC__bool EasyFLAC__process_until_end_of_stream(EasyFLAC__StreamDecoder *decoder);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

oggenc/encode.h

@@ -56,6 +56,7 @@ typedef struct
 	int genre_count;
     adv_opt *advopt;
     int advopt_count;
+	int copy_comments;
 
 	int quiet;
 
@@ -106,6 +107,7 @@ typedef struct