mirror of
https://github.com/mumble-voip/mumble.git
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0a31cd1c63
Tested with PipeWire 0.3.26. The implementation is quite basic and simple, yet it surpasses the JACK one in terms of features. For example, support for the most common surround mappings is provided. As opposed to JACK, an option to disable the auto endpoint connection is not provided. However, it's something that can be easily implemented if needed. Support for echo cancellation will definitely be added in future.
114 lines
4.0 KiB
C
114 lines
4.0 KiB
C
/* Simple Plugin API
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SPA_PARAM_AUDIO_FORMAT_UTILS_H
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#define SPA_PARAM_AUDIO_FORMAT_UTILS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <spa/pod/parser.h>
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#include <spa/pod/builder.h>
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#include <spa/param/audio/format.h>
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#include <spa/param/format-utils.h>
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static inline int
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spa_format_audio_raw_parse(const struct spa_pod *format, struct spa_audio_info_raw *info)
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{
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struct spa_pod *position = NULL;
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int res;
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info->flags = 0;
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res = spa_pod_parse_object(format,
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SPA_TYPE_OBJECT_Format, NULL,
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SPA_FORMAT_AUDIO_format, SPA_POD_Id(&info->format),
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SPA_FORMAT_AUDIO_rate, SPA_POD_Int(&info->rate),
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SPA_FORMAT_AUDIO_channels, SPA_POD_Int(&info->channels),
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SPA_FORMAT_AUDIO_position, SPA_POD_OPT_Pod(&position));
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if (position == NULL ||
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!spa_pod_copy_array(position, SPA_TYPE_Id, info->position, SPA_AUDIO_MAX_CHANNELS))
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SPA_FLAG_SET(info->flags, SPA_AUDIO_FLAG_UNPOSITIONED);
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return res;
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}
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static inline int
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spa_format_audio_dsp_parse(const struct spa_pod *format, struct spa_audio_info_dsp *info)
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{
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int res;
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res = spa_pod_parse_object(format,
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SPA_TYPE_OBJECT_Format, NULL,
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SPA_FORMAT_AUDIO_format, SPA_POD_Id(&info->format));
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return res;
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}
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static inline struct spa_pod *
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spa_format_audio_raw_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_raw *info)
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{
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struct spa_pod_frame f;
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spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
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spa_pod_builder_add(builder,
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SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
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SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
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0);
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if (info->format != SPA_AUDIO_FORMAT_UNKNOWN)
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spa_pod_builder_add(builder,
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SPA_FORMAT_AUDIO_format, SPA_POD_Id(info->format), 0);
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if (info->rate != 0)
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spa_pod_builder_add(builder,
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SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0);
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if (info->channels != 0) {
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spa_pod_builder_add(builder,
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SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0);
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if (!SPA_FLAG_IS_SET(info->flags, SPA_AUDIO_FLAG_UNPOSITIONED)) {
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spa_pod_builder_add(builder, SPA_FORMAT_AUDIO_position,
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SPA_POD_Array(sizeof(uint32_t), SPA_TYPE_Id,
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info->channels, info->position), 0);
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}
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}
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return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
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}
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static inline struct spa_pod *
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spa_format_audio_dsp_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_dsp *info)
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{
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struct spa_pod_frame f;
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spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
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spa_pod_builder_add(builder,
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SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
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SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsp),
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0);
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if (info->format != SPA_AUDIO_FORMAT_UNKNOWN)
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spa_pod_builder_add(builder,
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SPA_FORMAT_AUDIO_format, SPA_POD_Id(info->format), 0);
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return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
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}
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* SPA_PARAM_AUDIO_FORMAT_UTILS_H */
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