Adding upstream version 1.4.3+ds.upstream/1.4.3+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 1591 insertions, 0 deletions

diff --git a/examples/cpp/decode/Makefile.am b/examples/cpp/decode/Makefile.am
new file mode 100644
index 0000000..3c9499c
--- /dev/null
+++ b/examples/cpp/decode/Makefile.am
@@ -0,0 +1,19 @@
+#  FLAC - Free Lossless Audio Codec
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2023  Xiph.Org Foundation
+#
+#  This file is part the FLAC project.  FLAC is comprised of several
+#  components distributed under different licenses.  The codec libraries
+#  are distributed under Xiph.Org's BSD-like license (see the file
+#  COPYING.Xiph in this distribution).  All other programs, libraries, and
+#  plugins are distributed under the GPL (see COPYING.GPL).  The documentation
+#  is distributed under the Gnu FDL (see COPYING.FDL).  Each file in the
+#  FLAC distribution contains at the top the terms under which it may be
+#  distributed.
+#
+#  Since this particular file is relevant to all components of FLAC,
+#  it may be distributed under the Xiph.Org license, which is the least
+#  restrictive of those mentioned above.  See the file COPYING.Xiph in this
+#  distribution.
+
+SUBDIRS = file
diff --git a/examples/cpp/decode/Makefile.in b/examples/cpp/decode/Makefile.in
new file mode 100644
index 0000000..8e4b761
--- /dev/null
+++ b/examples/cpp/decode/Makefile.in
@@ -0,0 +1,676 @@
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diff --git a/examples/cpp/decode/file/CMakeLists.txt b/examples/cpp/decode/file/CMakeLists.txt
new file mode 100644
index 0000000..2ce420d
--- /dev/null
+++ b/examples/cpp/decode/file/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_executable(decode_file_cxx main.cpp)
+target_link_libraries(decode_file_cxx FLAC++)
diff --git a/examples/cpp/decode/file/Makefile.am b/examples/cpp/decode/file/Makefile.am
new file mode 100644
index 0000000..ff60853
--- /dev/null
+++ b/examples/cpp/decode/file/Makefile.am
@@ -0,0 +1,32 @@
+#  example_cpp_decode_file - Simple FLAC file decoder using libFLAC
+#  Copyright (C) 2007-2009  Josh Coalson
+#  Copyright (C) 2011-2023  Xiph.Org Foundation
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program 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 General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
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+	CMakeLists.txt
+
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+	$(top_builddir)/src/libFLAC++/libFLAC++.la \
+	$(top_builddir)/src/libFLAC/libFLAC.la \
+	@OGG_LIBS@ \
+	-lm
+
+example_cpp_decode_file_SOURCES = main.cpp
+
+CLEANFILES = example_cpp_decode_file.exe
diff --git a/examples/cpp/decode/file/Makefile.in b/examples/cpp/decode/file/Makefile.in
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index 0000000..083d841
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+#  Copyright (C) 2007-2009  Josh Coalson
+#  Copyright (C) 2011-2023  Xiph.Org Foundation
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diff --git a/examples/cpp/decode/file/main.cpp b/examples/cpp/decode/file/main.cpp
new file mode 100644
index 0000000..d1c2995
--- /dev/null
+++ b/examples/cpp/decode/file/main.cpp
@@ -0,0 +1,195 @@
+/* example_cpp_decode_file - Simple FLAC file decoder using libFLAC
+ * Copyright (C) 2007-2009  Josh Coalson
+ * Copyright (C) 2011-2023  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * This example shows how to use libFLAC++ to decode a FLAC file to a WAVE
+ * file.  It only supports 16-bit stereo files.
+ *
+ * Complete API documentation can be found at:
+ *   http://xiph.org/flac/api/
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "FLAC++/decoder.h"
+#include "share/compat.h"
+
+static FLAC__uint64 total_samples = 0;
+static uint32_t sample_rate = 0;
+static uint32_t channels = 0;
+static uint32_t bps = 0;
+
+static bool write_little_endian_uint16(FILE *f, FLAC__uint16 x)
+{
+	return
+		fputc(x, f) != EOF &&
+		fputc(x >> 8, f) != EOF
+	;
+}
+
+static bool write_little_endian_int16(FILE *f, FLAC__int16 x)
+{
+	return write_little_endian_uint16(f, (FLAC__uint16)x);
+}
+
+static bool write_little_endian_uint32(FILE *f, FLAC__uint32 x)
+{
+	return
+		fputc(x, f) != EOF &&
+		fputc(x >> 8, f) != EOF &&
+		fputc(x >> 16, f) != EOF &&
+		fputc(x >> 24, f) != EOF
+	;
+}
+
+class OurDecoder: public FLAC::Decoder::File {
+public:
+	OurDecoder(FILE *f_): FLAC::Decoder::File(), f(f_) { }
+protected:
+	FILE *f;
+
+	virtual ::FLAC__StreamDecoderWriteStatus write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
+	virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata);
+	virtual void error_callback(::FLAC__StreamDecoderErrorStatus status);
+private:
+	OurDecoder(const OurDecoder&);
+	OurDecoder&operator=(const OurDecoder&);
+};
+
+int main(int argc, char *argv[])
+{
+	bool ok = true;
+	FILE *fout;
+
+	if(argc != 3) {
+		fprintf(stderr, "usage: %s infile.flac outfile.wav\n", argv[0]);
+		return 1;
+	}
+
+	if((fout = fopen(argv[2], "wb")) == NULL) {
+		fprintf(stderr, "ERROR: opening %s for output\n", argv[2]);
+		return 1;
+	}
+
+	OurDecoder decoder(fout);
+
+	if(!decoder) {
+		fprintf(stderr, "ERROR: allocating decoder\n");
+		fclose(fout);
+		return 1;
+	}
+
+	(void)decoder.set_md5_checking(true);
+
+	FLAC__StreamDecoderInitStatus init_status = decoder.init(argv[1]);
+	if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
+		fprintf(stderr, "ERROR: initializing decoder: %s\n", FLAC__StreamDecoderInitStatusString[init_status]);
+		ok = false;
+	}
+
+	if(ok) {
+		ok = decoder.process_until_end_of_stream();
+		fprintf(stderr, "decoding: %s\n", ok? "succeeded" : "FAILED");
+		fprintf(stderr, "   state: %s\n", decoder.get_state().resolved_as_cstring(decoder));
+	}
+
+	fclose(fout);
+
+	return 0;
+}
+
+::FLAC__StreamDecoderWriteStatus OurDecoder::write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[])
+{
+	const FLAC__uint32 total_size = (FLAC__uint32)(total_samples * channels * (bps/8));
+	size_t i;
+
+	// Update data
+	channels = OurDecoder::get_channels();
+	bps = OurDecoder::get_bits_per_sample();
+
+	if(total_samples == 0) {
+		fprintf(stderr, "ERROR: this example only works for FLAC files that have a total_samples count in STREAMINFO\n");
+		return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+	}
+	if(channels != 2 || bps != 16) {
+		fprintf(stderr, "ERROR: this example only supports 16bit stereo streams\n");
+		return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+	}
+
+	/* write WAVE header before we write the first frame */
+	if(frame->header.number.sample_number == 0) {
+		if(
+			fwrite("RIFF", 1, 4, f) < 4 ||
+			!write_little_endian_uint32(f, total_size + 36) ||
+			fwrite("WAVEfmt ", 1, 8, f) < 8 ||
+			!write_little_endian_uint32(f, 16) ||
+			!write_little_endian_uint16(f, 1) ||
+			!write_little_endian_uint16(f, (FLAC__uint16)channels) ||
+			!write_little_endian_uint32(f, sample_rate) ||
+			!write_little_endian_uint32(f, sample_rate * channels * (bps/8)) ||
+			!write_little_endian_uint16(f, (FLAC__uint16)(channels * (bps/8))) || /* block align */
+			!write_little_endian_uint16(f, (FLAC__uint16)bps) ||
+			fwrite("data", 1, 4, f) < 4 ||
+			!write_little_endian_uint32(f, total_size)
+		) {
+			fprintf(stderr, "ERROR: write error\n");
+			return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+		}
+	}
+
+	/* write decoded PCM samples */
+	for(i = 0; i < frame->header.blocksize; i++) {
+		if(
+			!write_little_endian_int16(f, (FLAC__int16)buffer[0][i]) ||  /* left channel */
+			!write_little_endian_int16(f, (FLAC__int16)buffer[1][i])     /* right channel */
+		) {
+			fprintf(stderr, "ERROR: write error\n");
+			return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+		}
+	}
+
+	return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+}
+
+void OurDecoder::metadata_callback(const ::FLAC__StreamMetadata *metadata)
+{
+	/* print some stats */
+	if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
+		/* save for later */
+		total_samples = metadata->data.stream_info.total_samples;
+		sample_rate = metadata->data.stream_info.sample_rate;
+		channels = metadata->data.stream_info.channels;
+		bps = metadata->data.stream_info.bits_per_sample;
+
+		fprintf(stderr, "sample rate    : %u Hz\n", sample_rate);
+		fprintf(stderr, "channels       : %u\n", channels);
+		fprintf(stderr, "bits per sample: %u\n", bps);
+		fprintf(stderr, "total samples  : %" PRIu64 "\n", total_samples);
+	}
+}
+
+void OurDecoder::error_callback(::FLAC__StreamDecoderErrorStatus status)
+{
+	fprintf(stderr, "Got error callback: %s\n", FLAC__StreamDecoderErrorStatusString[status]);
+}