diff options
Diffstat (limited to 'src/filter/convert_filter_plugin.c')
-rw-r--r-- | src/filter/convert_filter_plugin.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/src/filter/convert_filter_plugin.c b/src/filter/convert_filter_plugin.c deleted file mode 100644 index c55b69af..00000000 --- a/src/filter/convert_filter_plugin.c +++ /dev/null @@ -1,146 +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 "filter/convert_filter_plugin.h" -#include "filter_plugin.h" -#include "filter_internal.h" -#include "filter_registry.h" -#include "conf.h" -#include "pcm_convert.h" -#include "audio_format.h" -#include "poison.h" - -#include <assert.h> -#include <string.h> - -struct convert_filter { - struct filter base; - - /** - * The current convert, from 0 to #PCM_CONVERT_1. - */ - unsigned convert; - - /** - * The input audio format; PCM data is passed to the filter() - * method in this format. - */ - struct audio_format in_audio_format; - - /** - * The output audio format; the consumer of this plugin - * expects PCM data in this format. This defaults to - * #in_audio_format, and can be set with convert_filter_set(). - */ - struct audio_format out_audio_format; - - struct pcm_convert_state state; -}; - -static struct filter * -convert_filter_init(G_GNUC_UNUSED const struct config_param *param, - G_GNUC_UNUSED GError **error_r) -{ - struct convert_filter *filter = g_new(struct convert_filter, 1); - - filter_init(&filter->base, &convert_filter_plugin); - return &filter->base; -} - -static void -convert_filter_finish(struct filter *filter) -{ - g_free(filter); -} - -static const struct audio_format * -convert_filter_open(struct filter *_filter, struct audio_format *audio_format, - G_GNUC_UNUSED GError **error_r) -{ - struct convert_filter *filter = (struct convert_filter *)_filter; - - assert(audio_format_valid(audio_format)); - - filter->in_audio_format = filter->out_audio_format = *audio_format; - pcm_convert_init(&filter->state); - - return &filter->in_audio_format; -} - -static void -convert_filter_close(struct filter *_filter) -{ - struct convert_filter *filter = (struct convert_filter *)_filter; - - pcm_convert_deinit(&filter->state); - - poison_undefined(&filter->in_audio_format, - sizeof(filter->in_audio_format)); - poison_undefined(&filter->out_audio_format, - sizeof(filter->out_audio_format)); -} - -static const void * -convert_filter_filter(struct filter *_filter, const void *src, size_t src_size, - size_t *dest_size_r, GError **error_r) -{ - struct convert_filter *filter = (struct convert_filter *)_filter; - const void *dest; - - if (audio_format_equals(&filter->in_audio_format, - &filter->out_audio_format)) { - /* optimized special case: no-op */ - *dest_size_r = src_size; - return src; - } - - dest = pcm_convert(&filter->state, &filter->in_audio_format, - src, src_size, - &filter->out_audio_format, dest_size_r, - error_r); - if (dest == NULL) - return NULL; - - return dest; -} - -const struct filter_plugin convert_filter_plugin = { - .name = "convert", - .init = convert_filter_init, - .finish = convert_filter_finish, - .open = convert_filter_open, - .close = convert_filter_close, - .filter = convert_filter_filter, -}; - -void -convert_filter_set(struct filter *_filter, - const struct audio_format *out_audio_format) -{ - struct convert_filter *filter = (struct convert_filter *)_filter; - - assert(filter != NULL); - assert(audio_format_valid(&filter->in_audio_format)); - assert(audio_format_valid(&filter->out_audio_format)); - assert(out_audio_format != NULL); - assert(audio_format_valid(out_audio_format)); - - filter->out_audio_format = *out_audio_format; -} |