decoder_*: convert to C++

1 files changed, 0 insertions, 567 deletions

diff --git a/src/decoder_api.c b/src/decoder_api.c
deleted file mode 100644
index a45d0f1e6..000000000
--- a/src/decoder_api.c
+++ /dev/null
@@ -1,567 +0,0 @@
-/*
- * Copyright (C) 2003-2011 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 "decoder_api.h"
-#include "decoder_internal.h"
-#include "decoder_control.h"
-#include "audio_config.h"
-#include "song.h"
-#include "buffer.h"
-#include "pipe.h"
-#include "chunk.h"
-#include "replay_gain_config.h"
-
-#include <glib.h>
-
-#include <assert.h>
-#include <stdlib.h>
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "decoder"
-
-void
-decoder_initialized(struct decoder *decoder,
-		    const struct audio_format *audio_format,
-		    bool seekable, float total_time)
-{
-	struct decoder_control *dc = decoder->dc;
-	struct audio_format_string af_string;
-
-	assert(dc->state == DECODE_STATE_START);
-	assert(dc->pipe != NULL);
-	assert(decoder != NULL);
-	assert(decoder->stream_tag == NULL);
-	assert(decoder->decoder_tag == NULL);
-	assert(!decoder->seeking);
-	assert(audio_format != NULL);
-	assert(audio_format_defined(audio_format));
-	assert(audio_format_valid(audio_format));
-
-	dc->in_audio_format = *audio_format;
-	getOutputAudioFormat(audio_format, &dc->out_audio_format);
-
-	dc->seekable = seekable;
-	dc->total_time = total_time;
-
-	decoder_lock(dc);
-	dc->state = DECODE_STATE_DECODE;
-	g_cond_signal(dc->client_cond);
-	decoder_unlock(dc);
-
-	g_debug("audio_format=%s, seekable=%s",
-		audio_format_to_string(&dc->in_audio_format, &af_string),
-		seekable ? "true" : "false");
-
-	if (!audio_format_equals(&dc->in_audio_format,
-				 &dc->out_audio_format))
-		g_debug("converting to %s",
-			audio_format_to_string(&dc->out_audio_format,
-					       &af_string));
-}
-
-/**
- * Checks if we need an "initial seek".  If so, then the initial seek
- * is prepared, and the function returns true.
- */
-G_GNUC_PURE
-static bool
-decoder_prepare_initial_seek(struct decoder *decoder)
-{
-	const struct decoder_control *dc = decoder->dc;
-	assert(dc->pipe != NULL);
-
-	if (dc->state != DECODE_STATE_DECODE)
-		/* wait until the decoder has finished initialisation
-		   (reading file headers etc.) before emitting the
-		   virtual "SEEK" command */
-		return false;
-
-	if (decoder->initial_seek_running)
-		/* initial seek has already begun - override any other
-		   command */
-		return true;
-
-	if (decoder->initial_seek_pending) {
-		if (!dc->seekable) {
-			/* seeking is not possible */
-			decoder->initial_seek_pending = false;
-			return false;
-		}
-
-		if (dc->command == DECODE_COMMAND_NONE) {
-			/* begin initial seek */
-
-			decoder->initial_seek_pending = false;
-			decoder->initial_seek_running = true;
-			return true;
-		}
-
-		/* skip initial seek when there's another command
-		   (e.g. STOP) */
-
-		decoder->initial_seek_pending = false;
-	}
-
-	return false;
-}
-
-/**
- * Returns the current decoder command.  May return a "virtual"
- * synthesized command, e.g. to seek to the beginning of the CUE
- * track.
- */
-G_GNUC_PURE
-static enum decoder_command
-decoder_get_virtual_command(struct decoder *decoder)
-{
-	const struct decoder_control *dc = decoder->dc;
-	assert(dc->pipe != NULL);
-
-	if (decoder_prepare_initial_seek(decoder))
-		return DECODE_COMMAND_SEEK;
-
-	return dc->command;
-}
-
-enum decoder_command
-decoder_get_command(struct decoder *decoder)
-{
-	return decoder_get_virtual_command(decoder);
-}
-
-void
-decoder_command_finished(struct decoder *decoder)
-{
-	struct decoder_control *dc = decoder->dc;
-
-	decoder_lock(dc);
-
-	assert(dc->command != DECODE_COMMAND_NONE ||
-	       decoder->initial_seek_running);
-	assert(dc->command != DECODE_COMMAND_SEEK ||
-	       decoder->initial_seek_running ||
-	       dc->seek_error || decoder->seeking);
-	assert(dc->pipe != NULL);
-
-	if (decoder->initial_seek_running) {
-		assert(!decoder->seeking);
-		assert(decoder->chunk == NULL);
-		assert(music_pipe_empty(dc->pipe));
-
-		decoder->initial_seek_running = false;
-		decoder->timestamp = dc->start_ms / 1000.;
-		decoder_unlock(dc);
-		return;
-	}
-
-	if (decoder->seeking) {
-		decoder->seeking = false;
-
-		/* delete frames from the old song position */
-
-		if (decoder->chunk != NULL) {
-			music_buffer_return(dc->buffer, decoder->chunk);
-			decoder->chunk = NULL;
-		}
-
-		music_pipe_clear(dc->pipe, dc->buffer);
-
-		decoder->timestamp = dc->seek_where;
-	}
-
-	dc->command = DECODE_COMMAND_NONE;
-	g_cond_signal(dc->client_cond);
-	decoder_unlock(dc);
-}
-
-double decoder_seek_where(G_GNUC_UNUSED struct decoder * decoder)
-{
-	const struct decoder_control *dc = decoder->dc;
-
-	assert(dc->pipe != NULL);
-
-	if (decoder->initial_seek_running)
-		return dc->start_ms / 1000.;
-
-	assert(dc->command == DECODE_COMMAND_SEEK);
-
-	decoder->seeking = true;
-
-	return dc->seek_where;
-}
-
-void decoder_seek_error(struct decoder * decoder)
-{
-	struct decoder_control *dc = decoder->dc;
-
-	assert(dc->pipe != NULL);
-
-	if (decoder->initial_seek_running) {
-		/* d'oh, we can't seek to the sub-song start position,
-		   what now? - no idea, ignoring the problem for now. */
-		decoder->initial_seek_running = false;
-		return;
-	}
-
-	assert(dc->command == DECODE_COMMAND_SEEK);
-
-	dc->seek_error = true;
-	decoder->seeking = false;
-
-	decoder_command_finished(decoder);
-}
-
-/**
- * Should be read operation be cancelled?  That is the case when the
- * player thread has sent a command such as "STOP".
- */
-G_GNUC_PURE
-static inline bool
-decoder_check_cancel_read(const struct decoder *decoder)
-{
-	if (decoder == NULL)
-		return false;
-
-	const struct decoder_control *dc = decoder->dc;
-	if (dc->command == DECODE_COMMAND_NONE)
-		return false;
-
-	/* ignore the SEEK command during initialization, the plugin
-	   should handle that after it has initialized successfully */
-	if (dc->command == DECODE_COMMAND_SEEK &&
-	    (dc->state == DECODE_STATE_START || decoder->seeking))
-		return false;
-
-	return true;
-}
-
-size_t decoder_read(struct decoder *decoder,
-		    struct input_stream *is,
-		    void *buffer, size_t length)
-{
-	/* XXX don't allow decoder==NULL */
-	GError *error = NULL;
-	size_t nbytes;
-
-	assert(decoder == NULL ||
-	       decoder->dc->state == DECODE_STATE_START ||
-	       decoder->dc->state == DECODE_STATE_DECODE);
-	assert(is != NULL);
-	assert(buffer != NULL);
-
-	if (length == 0)
-		return 0;
-
-	input_stream_lock(is);
-
-	while (true) {
-		if (decoder_check_cancel_read(decoder)) {
-			input_stream_unlock(is);
-			return 0;
-		}
-
-		if (input_stream_available(is))
-			break;
-
-		g_cond_wait(is->cond, is->mutex);
-	}
-
-	nbytes = input_stream_read(is, buffer, length, &error);
-	assert(nbytes == 0 || error == NULL);
-	assert(nbytes > 0 || error != NULL || input_stream_eof(is));
-
-	if (G_UNLIKELY(nbytes == 0 && error != NULL)) {
-		g_warning("%s", error->message);
-		g_error_free(error);
-	}
-
-	input_stream_unlock(is);
-
-	return nbytes;
-}
-
-void
-decoder_timestamp(struct decoder *decoder, double t)
-{
-	assert(decoder != NULL);
-	assert(t >= 0);
-
-	decoder->timestamp = t;
-}
-
-/**
- * Sends a #tag as-is to the music pipe.  Flushes the current chunk
- * (decoder.chunk) if there is one.
- */
-static enum decoder_command
-do_send_tag(struct decoder *decoder, const struct tag *tag)
-{
-	struct music_chunk *chunk;
-
-	if (decoder->chunk != NULL) {
-		/* there is a partial chunk - flush it, we want the
-		   tag in a new chunk */
-		decoder_flush_chunk(decoder);
-		g_cond_signal(decoder->dc->client_cond);
-	}
-
-	assert(decoder->chunk == NULL);
-
-	chunk = decoder_get_chunk(decoder);
-	if (chunk == NULL) {
-		assert(decoder->dc->command != DECODE_COMMAND_NONE);
-		return decoder->dc->command;
-	}
-
-	chunk->tag = tag_dup(tag);
-	return DECODE_COMMAND_NONE;
-}
-
-static bool
-update_stream_tag(struct decoder *decoder, struct input_stream *is)
-{
-	struct tag *tag;
-
-	tag = is != NULL
-		? input_stream_lock_tag(is)
-		: NULL;
-	if (tag == NULL) {
-		tag = decoder->song_tag;
-		if (tag == NULL)
-			return false;
-
-		/* no stream tag present - submit the song tag
-		   instead */
-		decoder->song_tag = NULL;
-	}
-
-	if (decoder->stream_tag != NULL)
-		tag_free(decoder->stream_tag);
-
-	decoder->stream_tag = tag;
-	return true;
-}
-
-enum decoder_command
-decoder_data(struct decoder *decoder,
-	     struct input_stream *is,
-	     const void *_data, size_t length,
-	     uint16_t kbit_rate)
-{
-	struct decoder_control *dc = decoder->dc;
-	const char *data = _data;
-	GError *error = NULL;
-	enum decoder_command cmd;
-
-	assert(dc->state == DECODE_STATE_DECODE);
-	assert(dc->pipe != NULL);
-	assert(length % audio_format_frame_size(&dc->in_audio_format) == 0);
-
-	decoder_lock(dc);
-	cmd = decoder_get_virtual_command(decoder);
-	decoder_unlock(dc);
-
-	if (cmd == DECODE_COMMAND_STOP || cmd == DECODE_COMMAND_SEEK ||
-	    length == 0)
-		return cmd;
-
-	/* send stream tags */
-
-	if (update_stream_tag(decoder, is)) {
-		if (decoder->decoder_tag != NULL) {
-			/* merge with tag from decoder plugin */
-			struct tag *tag;
-
-			tag = tag_merge(decoder->decoder_tag,
-					decoder->stream_tag);
-			cmd = do_send_tag(decoder, tag);
-			tag_free(tag);
-		} else
-			/* send only the stream tag */
-			cmd = do_send_tag(decoder, decoder->stream_tag);
-
-		if (cmd != DECODE_COMMAND_NONE)
-			return cmd;
-	}
-
-	if (!audio_format_equals(&dc->in_audio_format, &dc->out_audio_format)) {
-		data = pcm_convert(&decoder->conv_state,
-				   &dc->in_audio_format, data, length,
-				   &dc->out_audio_format, &length,
-				   &error);
-		if (data == NULL) {
-			/* the PCM conversion has failed - stop
-			   playback, since we have no better way to
-			   bail out */
-			g_warning("%s", error->message);
-			return DECODE_COMMAND_STOP;
-		}
-	}
-
-	while (length > 0) {
-		struct music_chunk *chunk;
-		char *dest;
-		size_t nbytes;
-		bool full;
-
-		chunk = decoder_get_chunk(decoder);
-		if (chunk == NULL) {
-			assert(dc->command != DECODE_COMMAND_NONE);
-			return dc->command;
-		}
-
-		dest = music_chunk_write(chunk, &dc->out_audio_format,
-					 decoder->timestamp -
-					 dc->song->start_ms / 1000.0,
-					 kbit_rate, &nbytes);
-		if (dest == NULL) {
-			/* the chunk is full, flush it */
-			decoder_flush_chunk(decoder);
-			g_cond_signal(dc->client_cond);
-			continue;
-		}
-
-		assert(nbytes > 0);
-
-		if (nbytes > length)
-			nbytes = length;
-
-		/* copy the buffer */
-
-		memcpy(dest, data, nbytes);
-
-		/* expand the music pipe chunk */
-
-		full = music_chunk_expand(chunk, &dc->out_audio_format, nbytes);
-		if (full) {
-			/* the chunk is full, flush it */
-			decoder_flush_chunk(decoder);
-			g_cond_signal(dc->client_cond);
-		}
-
-		data += nbytes;
-		length -= nbytes;
-
-		decoder->timestamp += (double)nbytes /
-			audio_format_time_to_size(&dc->out_audio_format);
-
-		if (dc->end_ms > 0 &&
-		    decoder->timestamp >= dc->end_ms / 1000.0)
-			/* the end of this range has been reached:
-			   stop decoding */
-			return DECODE_COMMAND_STOP;
-	}
-
-	return DECODE_COMMAND_NONE;
-}
-
-enum decoder_command
-decoder_tag(G_GNUC_UNUSED struct decoder *decoder, struct input_stream *is,
-	    const struct tag *tag)
-{
-	G_GNUC_UNUSED const struct decoder_control *dc = decoder->dc;
-	enum decoder_command cmd;
-
-	assert(dc->state == DECODE_STATE_DECODE);
-	assert(dc->pipe != NULL);
-	assert(tag != NULL);
-
-	/* save the tag */
-
-	if (decoder->decoder_tag != NULL)
-		tag_free(decoder->decoder_tag);
-	decoder->decoder_tag = tag_dup(tag);
-
-	/* check for a new stream tag */
-
-	update_stream_tag(decoder, is);
-
-	/* check if we're seeking */
-
-	if (decoder_prepare_initial_seek(decoder))
-		/* during initial seek, no music chunk must be created
-		   until seeking is finished; skip the rest of the
-		   function here */
-		return DECODE_COMMAND_SEEK;
-
-	/* send tag to music pipe */
-
-	if (decoder->stream_tag != NULL) {
-		/* merge with tag from input stream */
-		struct tag *merged;
-
-		merged = tag_merge(decoder->stream_tag, decoder->decoder_tag);
-		cmd = do_send_tag(decoder, merged);
-		tag_free(merged);
-	} else
-		/* send only the decoder tag */
-		cmd = do_send_tag(decoder, tag);
-
-	return cmd;
-}
-
-float
-decoder_replay_gain(struct decoder *decoder,
-		    const struct replay_gain_info *replay_gain_info)
-{
-	float return_db = 0;
-	assert(decoder != NULL);
-
-	if (replay_gain_info != NULL) {
-		static unsigned serial;
-		if (++serial == 0)
-			serial = 1;
-
-		if (REPLAY_GAIN_OFF != replay_gain_mode) {
-			return_db = 20.0 * log10f(
-				replay_gain_tuple_scale(
-					&replay_gain_info->tuples[replay_gain_get_real_mode()],
-					replay_gain_preamp, replay_gain_missing_preamp,
-					replay_gain_limit));
-		}
-
-		decoder->replay_gain_info = *replay_gain_info;
-		decoder->replay_gain_serial = serial;
-
-		if (decoder->chunk != NULL) {
-			/* flush the current chunk because the new
-			   replay gain values affect the following
-			   samples */
-			decoder_flush_chunk(decoder);
-			g_cond_signal(decoder->dc->client_cond);
-		}
-	} else
-		decoder->replay_gain_serial = 0;
-
-	return return_db;
-}
-
-void
-decoder_mixramp(struct decoder *decoder, float replay_gain_db,
-		char *mixramp_start, char *mixramp_end)
-{
-	assert(decoder != NULL);
-	struct decoder_control *dc = decoder->dc;
-	assert(dc != NULL);
-
-	dc->replay_gain_db = replay_gain_db;
-	dc_mixramp_start(dc, mixramp_start);
-	dc_mixramp_end(dc, mixramp_end);
-}