107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "DecoderInternal.hxx"
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#include "DecoderControl.hxx"
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#include "MusicPipe.hxx"
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#include "MusicBuffer.hxx"
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#include "MusicChunk.hxx"
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#include "Tag.hxx"
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#include <assert.h>
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decoder::~decoder()
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{
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/* caller must flush the chunk */
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assert(chunk == nullptr);
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delete song_tag;
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delete stream_tag;
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delete decoder_tag;
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}
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/**
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* All chunks are full of decoded data; wait for the player to free
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* one.
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*/
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static enum decoder_command
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need_chunks(struct decoder_control *dc, bool do_wait)
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{
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if (dc->command == DECODE_COMMAND_STOP ||
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dc->command == DECODE_COMMAND_SEEK)
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return dc->command;
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if (do_wait) {
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dc->Wait();
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dc->client_cond.signal();
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return dc->command;
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}
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return DECODE_COMMAND_NONE;
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}
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struct music_chunk *
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decoder_get_chunk(struct decoder *decoder)
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{
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struct decoder_control *dc = decoder->dc;
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enum decoder_command cmd;
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assert(decoder != NULL);
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if (decoder->chunk != NULL)
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return decoder->chunk;
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do {
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decoder->chunk = music_buffer_allocate(dc->buffer);
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if (decoder->chunk != NULL) {
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decoder->chunk->replay_gain_serial =
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decoder->replay_gain_serial;
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if (decoder->replay_gain_serial != 0)
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decoder->chunk->replay_gain_info =
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decoder->replay_gain_info;
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return decoder->chunk;
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}
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dc->Lock();
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cmd = need_chunks(dc, true);
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dc->Unlock();
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} while (cmd == DECODE_COMMAND_NONE);
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return NULL;
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}
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void
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decoder_flush_chunk(struct decoder *decoder)
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{
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struct decoder_control *dc = decoder->dc;
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assert(decoder != NULL);
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assert(decoder->chunk != NULL);
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if (decoder->chunk->IsEmpty())
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music_buffer_return(dc->buffer, decoder->chunk);
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else
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music_pipe_push(dc->pipe, decoder->chunk);
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decoder->chunk = NULL;
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}
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