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-rw-r--r--src/decoder/FlacInput.cxx149
1 files changed, 149 insertions, 0 deletions
diff --git a/src/decoder/FlacInput.cxx b/src/decoder/FlacInput.cxx
new file mode 100644
index 000000000..f5dedd97b
--- /dev/null
+++ b/src/decoder/FlacInput.cxx
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include "FlacInput.hxx"
+#include "decoder_api.h"
+#include "gcc.h"
+#include "InputStream.hxx"
+
+FLAC__StreamDecoderReadStatus
+FlacInput::Read(FLAC__byte buffer[], size_t *bytes)
+{
+ size_t r = decoder_read(decoder, input_stream, (void *)buffer, *bytes);
+ *bytes = r;
+
+ if (r == 0) {
+ if (input_stream_lock_eof(input_stream) ||
+ (decoder != nullptr &&
+ decoder_get_command(decoder) != DECODE_COMMAND_NONE))
+ return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+ else
+ return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+ }
+
+ return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+}
+
+FLAC__StreamDecoderSeekStatus
+FlacInput::Seek(FLAC__uint64 absolute_byte_offset)
+{
+ if (!input_stream->seekable)
+ return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
+
+ if (!input_stream_lock_seek(input_stream,
+ absolute_byte_offset, SEEK_SET,
+ nullptr))
+ return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
+
+ return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
+}
+
+FLAC__StreamDecoderTellStatus
+FlacInput::Tell(FLAC__uint64 *absolute_byte_offset)
+{
+ if (!input_stream->seekable)
+ return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
+
+ *absolute_byte_offset = (FLAC__uint64)input_stream->offset;
+ return FLAC__STREAM_DECODER_TELL_STATUS_OK;
+}
+
+FLAC__StreamDecoderLengthStatus
+FlacInput::Length(FLAC__uint64 *stream_length)
+{
+ if (input_stream->size < 0)
+ return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
+
+ *stream_length = (FLAC__uint64)input_stream->size;
+ return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
+}
+
+FLAC__bool
+FlacInput::Eof()
+{
+ return (decoder != nullptr &&
+ decoder_get_command(decoder) != DECODE_COMMAND_NONE &&
+ decoder_get_command(decoder) != DECODE_COMMAND_SEEK) ||
+ input_stream_lock_eof(input_stream);
+}
+
+void
+FlacInput::Error(FLAC__StreamDecoderErrorStatus status)
+{
+ if (decoder == nullptr ||
+ decoder_get_command(decoder) != DECODE_COMMAND_STOP)
+ g_warning("%s", FLAC__StreamDecoderErrorStatusString[status]);
+}
+
+FLAC__StreamDecoderReadStatus
+FlacInput::Read(gcc_unused const FLAC__StreamDecoder *flac_decoder,
+ FLAC__byte buffer[], size_t *bytes,
+ void *client_data)
+{
+ FlacInput *i = (FlacInput *)client_data;
+
+ return i->Read(buffer, bytes);
+}
+
+FLAC__StreamDecoderSeekStatus
+FlacInput::Seek(gcc_unused const FLAC__StreamDecoder *flac_decoder,
+ FLAC__uint64 absolute_byte_offset, void *client_data)
+{
+ FlacInput *i = (FlacInput *)client_data;
+
+ return i->Seek(absolute_byte_offset);
+}
+
+FLAC__StreamDecoderTellStatus
+FlacInput::Tell(gcc_unused const FLAC__StreamDecoder *flac_decoder,
+ FLAC__uint64 *absolute_byte_offset, void *client_data)
+{
+ FlacInput *i = (FlacInput *)client_data;
+
+ return i->Tell(absolute_byte_offset);
+}
+
+FLAC__StreamDecoderLengthStatus
+FlacInput::Length(gcc_unused const FLAC__StreamDecoder *flac_decoder,
+ FLAC__uint64 *stream_length, void *client_data)
+{
+ FlacInput *i = (FlacInput *)client_data;
+
+ return i->Length(stream_length);
+}
+
+FLAC__bool
+FlacInput::Eof(gcc_unused const FLAC__StreamDecoder *flac_decoder,
+ void *client_data)
+{
+ FlacInput *i = (FlacInput *)client_data;
+
+ return i->Eof();
+}
+
+void
+FlacInput::Error(gcc_unused const FLAC__StreamDecoder *decoder,
+ FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+ FlacInput *i = (FlacInput *)client_data;
+
+ i->Error(status);
+}
+