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authorMax Kellermann <max@duempel.org>2013-01-04 08:41:16 +0100
committerMax Kellermann <max@duempel.org>2013-01-04 09:41:45 +0100
commite12cc01aa4b25798a2887ac6c5e01309e744ea8b (patch)
treecbf58024a0fb6d470a87c420ddcdf0ac2f0f15d6 /src/DecoderInternal.cxx
parent71c697288b2325011f7302437aac912e88d6b6b4 (diff)
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decoder_*: convert to C++
Diffstat (limited to 'src/DecoderInternal.cxx')
-rw-r--r--src/DecoderInternal.cxx100
1 files changed, 100 insertions, 0 deletions
diff --git a/src/DecoderInternal.cxx b/src/DecoderInternal.cxx
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+++ b/src/DecoderInternal.cxx
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+/*
+ * Copyright (C) 2003-2013 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 "DecoderInternal.hxx"
+#include "DecoderControl.hxx"
+
+extern "C" {
+#include "pipe.h"
+#include "buffer.h"
+}
+
+#include "input_stream.h"
+#include "chunk.h"
+
+#include <assert.h>
+
+/**
+ * All chunks are full of decoded data; wait for the player to free
+ * one.
+ */
+static enum decoder_command
+need_chunks(struct decoder_control *dc, bool do_wait)
+{
+ if (dc->command == DECODE_COMMAND_STOP ||
+ dc->command == DECODE_COMMAND_SEEK)
+ return dc->command;
+
+ if (do_wait) {
+ decoder_wait(dc);
+ g_cond_signal(dc->client_cond);
+
+ return dc->command;
+ }
+
+ return DECODE_COMMAND_NONE;
+}
+
+struct music_chunk *
+decoder_get_chunk(struct decoder *decoder)
+{
+ struct decoder_control *dc = decoder->dc;
+ enum decoder_command cmd;
+
+ assert(decoder != NULL);
+
+ if (decoder->chunk != NULL)
+ return decoder->chunk;
+
+ do {
+ decoder->chunk = music_buffer_allocate(dc->buffer);
+ if (decoder->chunk != NULL) {
+ decoder->chunk->replay_gain_serial =
+ decoder->replay_gain_serial;
+ if (decoder->replay_gain_serial != 0)
+ decoder->chunk->replay_gain_info =
+ decoder->replay_gain_info;
+
+ return decoder->chunk;
+ }
+
+ decoder_lock(dc);
+ cmd = need_chunks(dc, true);
+ decoder_unlock(dc);
+ } while (cmd == DECODE_COMMAND_NONE);
+
+ return NULL;
+}
+
+void
+decoder_flush_chunk(struct decoder *decoder)
+{
+ struct decoder_control *dc = decoder->dc;
+
+ assert(decoder != NULL);
+ assert(decoder->chunk != NULL);
+
+ if (music_chunk_is_empty(decoder->chunk))
+ music_buffer_return(dc->buffer, decoder->chunk);
+ else
+ music_pipe_push(dc->pipe, decoder->chunk);
+
+ decoder->chunk = NULL;
+}