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, 1574 insertions, 0 deletions

diff --git a/examples/cpp/encode/Makefile.am b/examples/cpp/encode/Makefile.am
new file mode 100644
index 0000000..3c9499c
--- /dev/null
+++ b/examples/cpp/encode/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/encode/Makefile.in b/examples/cpp/encode/Makefile.in
new file mode 100644
index 0000000..e8f4170
--- /dev/null
+++ b/examples/cpp/encode/Makefile.in
@@ -0,0 +1,676 @@
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diff --git a/examples/cpp/encode/file/CMakeLists.txt b/examples/cpp/encode/file/CMakeLists.txt
new file mode 100644
index 0000000..2617876
--- /dev/null
+++ b/examples/cpp/encode/file/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_executable(encode_file_cxx main.cpp)
+target_link_libraries(encode_file_cxx FLAC++)
diff --git a/examples/cpp/encode/file/Makefile.am b/examples/cpp/encode/file/Makefile.am
new file mode 100644
index 0000000..f293d61
--- /dev/null
+++ b/examples/cpp/encode/file/Makefile.am
@@ -0,0 +1,32 @@
+#  example_cpp_encode_file - Simple FLAC file encoder 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 \
+	$(top_builddir)/src/libFLAC/libFLAC.la \
+	@OGG_LIBS@ \
+	-lm
+
+example_cpp_encode_file_SOURCES = main.cpp
+
+CLEANFILES = example_cpp_encode_file.exe
diff --git a/examples/cpp/encode/file/Makefile.in b/examples/cpp/encode/file/Makefile.in
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+#  Copyright (C) 2007-2009  Josh Coalson
+#  Copyright (C) 2011-2023  Xiph.Org Foundation
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+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/examples/cpp/encode/file/main.cpp b/examples/cpp/encode/file/main.cpp
new file mode 100644
index 0000000..c420d23
--- /dev/null
+++ b/examples/cpp/encode/file/main.cpp
@@ -0,0 +1,178 @@
+/* example_cpp_encode_file - Simple FLAC file encoder 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 encode a WAVE file to a FLAC
+ * file.  It only supports 16-bit stereo files in canonical WAVE format.
+ *
+ * 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 <string.h>
+
+#include "FLAC++/metadata.h"
+#include "FLAC++/encoder.h"
+#include "share/compat.h"
+
+#include <cstring>
+
+class OurEncoder: public FLAC::Encoder::File {
+public:
+	OurEncoder(): FLAC::Encoder::File() { }
+protected:
+	virtual void progress_callback(FLAC__uint64 bytes_written, FLAC__uint64 samples_written, uint32_t frames_written, uint32_t total_frames_estimate);
+};
+
+#define READSIZE 1024
+
+static uint32_t total_samples = 0; /* can use a 32-bit number due to WAVE size limitations */
+static FLAC__byte buffer[READSIZE/*samples*/ * 2/*bytes_per_sample*/ * 2/*channels*/]; /* we read the WAVE data into here */
+static FLAC__int32 pcm[READSIZE/*samples*/ * 2/*channels*/];
+
+int main(int argc, char *argv[])
+{
+	bool ok = true;
+	OurEncoder encoder;
+	FLAC__StreamEncoderInitStatus init_status;
+	FLAC__StreamMetadata *metadata[2];
+	FLAC__StreamMetadata_VorbisComment_Entry entry;
+	FILE *fin;
+	uint32_t sample_rate = 0;
+	uint32_t channels = 0;
+	uint32_t bps = 0;
+
+	if(argc != 3) {
+		fprintf(stderr, "usage: %s infile.wav outfile.flac\n", argv[0]);
+		return 1;
+	}
+
+	if((fin = fopen(argv[1], "rb")) == NULL) {
+		fprintf(stderr, "ERROR: opening %s for output\n", argv[1]);
+		return 1;
+	}
+
+	/* read wav header and validate it */
+	if(
+		fread(buffer, 1, 44, fin) != 44 ||
+		memcmp(buffer, "RIFF", 4) ||
+		memcmp(buffer+8, "WAVEfmt \020\000\000\000\001\000\002\000", 16) ||
+		memcmp(buffer+32, "\004\000\020\000data", 8)
+	) {
+		fprintf(stderr, "ERROR: invalid/unsupported WAVE file, only 16bps stereo WAVE in canonical form allowed\n");
+		fclose(fin);
+		return 1;
+	}
+	sample_rate = ((((((uint32_t)buffer[27] << 8) | buffer[26]) << 8) | buffer[25]) << 8) | buffer[24];
+	channels = 2;
+	bps = 16;
+	total_samples = (((((((uint32_t)buffer[43] << 8) | buffer[42]) << 8) | buffer[41]) << 8) | buffer[40]) / 4;
+
+	/* check the encoder */
+	if(!encoder) {
+		fprintf(stderr, "ERROR: allocating encoder\n");
+		fclose(fin);
+		return 1;
+	}
+
+	ok &= encoder.set_verify(true);
+	ok &= encoder.set_compression_level(5);
+	ok &= encoder.set_channels(channels);
+	ok &= encoder.set_bits_per_sample(bps);
+	ok &= encoder.set_sample_rate(sample_rate);
+	ok &= encoder.set_total_samples_estimate(total_samples);
+
+	/* now add some metadata; we'll add some tags and a padding block */
+	if(ok) {
+		if(
+			(metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)) == NULL ||
+			(metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)) == NULL ||
+			/* there are many tag (vorbiscomment) functions but these are convenient for this particular use: */
+			!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ARTIST", "Some Artist") ||
+			!FLAC__metadata_object_vorbiscomment_append_comment(metadata[0], entry, /*copy=*/false) || /* copy=false: let metadata object take control of entry's allocated string */
+			!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "YEAR", "1984") ||
+			!FLAC__metadata_object_vorbiscomment_append_comment(metadata[0], entry, /*copy=*/false)
+		) {
+			fprintf(stderr, "ERROR: out of memory or tag error\n");
+			ok = false;
+		} else {
+
+			metadata[1]->length = 1234; /* set the padding length */
+
+			ok = encoder.set_metadata(metadata, 2);
+
+                }
+	}
+
+	/* initialize encoder */
+	if(ok) {
+		init_status = encoder.init(argv[2]);
+		if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
+			fprintf(stderr, "ERROR: initializing encoder: %s\n", FLAC__StreamEncoderInitStatusString[init_status]);
+			ok = false;
+		}
+	}
+
+	/* read blocks of samples from WAVE file and feed to encoder */
+	if(ok) {
+		size_t left = (size_t)total_samples;
+		while(ok && left) {
+			size_t need = (left>READSIZE? (size_t)READSIZE : (size_t)left);
+			if(fread(buffer, channels*(bps/8), need, fin) != need) {
+				fprintf(stderr, "ERROR: reading from WAVE file\n");
+				ok = false;
+			}
+			else {
+				/* convert the packed little-endian 16-bit PCM samples from WAVE into an interleaved FLAC__int32 buffer for libFLAC */
+				size_t i;
+				for(i = 0; i < need*channels; i++) {
+					/* inefficient but simple and works on big- or little-endian machines */
+					pcm[i] = (FLAC__int32)(((FLAC__int16)(FLAC__int8)buffer[2*i+1] << 8) | (FLAC__int16)buffer[2*i]);
+				}
+				/* feed samples to encoder */
+				ok = encoder.process_interleaved(pcm, need);
+			}
+			left -= need;
+		}
+	}
+
+	ok &= encoder.finish();
+
+	fprintf(stderr, "encoding: %s\n", ok? "succeeded" : "FAILED");
+	fprintf(stderr, "   state: %s\n", encoder.get_state().resolved_as_cstring(encoder));
+
+	/* now that encoding is finished, the metadata can be freed */
+	FLAC__metadata_object_delete(metadata[0]);
+	FLAC__metadata_object_delete(metadata[1]);
+
+	fclose(fin);
+
+	return 0;
+}
+
+void OurEncoder::progress_callback(FLAC__uint64 bytes_written, FLAC__uint64 samples_written, uint32_t frames_written, uint32_t total_frames_estimate)
+{
+	fprintf(stderr, "wrote %" PRIu64 " bytes, %" PRIu64 "/%u samples, %u/%u frames\n", bytes_written, samples_written, total_samples, frames_written, total_frames_estimate);
+}