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spa: add ALAC format
This commit is contained in:
Wim Taymans
Wim Taymans
parent
603c28223b
commit
efbce802e4
6 changed files with 137 additions and 0 deletions
79
spa/include/spa/param/audio/alac-utils.h
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79
spa/include/spa/param/audio/alac-utils.h
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@ -0,0 +1,79 @@
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/* Simple Plugin API
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*
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* Copyright © 2023 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_AUDIO_ALAC_UTILS_H
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#define SPA_AUDIO_ALAC_UTILS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \addtogroup spa_param
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* \{
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*/
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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_alac_parse(const struct spa_pod *format, struct spa_audio_info_alac *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_rate, SPA_POD_OPT_Int(&info->rate),
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SPA_FORMAT_AUDIO_channels, SPA_POD_OPT_Int(&info->channels));
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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_alac_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_alac *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_alac),
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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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return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
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}
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/**
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* \}
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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_AUDIO_ALAC_UTILS_H */
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49
spa/include/spa/param/audio/alac.h
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49
spa/include/spa/param/audio/alac.h
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@ -0,0 +1,49 @@
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/* Simple Plugin API
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*
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* Copyright © 2023 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_AUDIO_ALAC_H
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#define SPA_AUDIO_ALAC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <spa/param/audio/raw.h>
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struct spa_audio_info_alac {
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uint32_t rate; /*< sample rate */
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uint32_t channels; /*< number of channels */
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};
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#define SPA_AUDIO_INFO_ALAC_INIT(...) ((struct spa_audio_info_alac) { __VA_ARGS__ })
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/**
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* \}
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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_AUDIO_ALAC_H */
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@ -44,6 +44,7 @@ extern "C" {
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#include <spa/param/audio/wma-utils.h>
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#include <spa/param/audio/ra-utils.h>
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#include <spa/param/audio/amr-utils.h>
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#include <spa/param/audio/alac-utils.h>
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/**
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@ -83,6 +84,8 @@ spa_format_audio_parse(const struct spa_pod *format, struct spa_audio_info *info
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return spa_format_audio_ra_parse(format, &info->info.ra);
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case SPA_MEDIA_SUBTYPE_amr:
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return spa_format_audio_amr_parse(format, &info->info.amr);
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case SPA_MEDIA_SUBTYPE_alac:
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return spa_format_audio_alac_parse(format, &info->info.alac);
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}
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return -ENOTSUP;
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}
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@ -111,6 +114,8 @@ spa_format_audio_build(struct spa_pod_builder *builder, uint32_t id, struct spa_
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return spa_format_audio_ra_build(builder, id, &info->info.ra);
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case SPA_MEDIA_SUBTYPE_amr:
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return spa_format_audio_amr_build(builder, id, &info->info.amr);
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case SPA_MEDIA_SUBTYPE_alac:
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return spa_format_audio_alac_build(builder, id, &info->info.alac);
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}
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errno = ENOTSUP;
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return NULL;
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@ -45,6 +45,7 @@ extern "C" {
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#include <spa/param/audio/wma.h>
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#include <spa/param/audio/ra.h>
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#include <spa/param/audio/amr.h>
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#include <spa/param/audio/alac.h>
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struct spa_audio_info {
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uint32_t media_type;
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@ -60,6 +61,7 @@ struct spa_audio_info {
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struct spa_audio_info_wma wma;
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struct spa_audio_info_ra ra;
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struct spa_audio_info_amr amr;
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struct spa_audio_info_alac alac;
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} info;
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};
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@ -80,6 +80,7 @@ static const struct spa_type_info spa_type_media_subtype[] = {
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{ SPA_MEDIA_SUBTYPE_g729, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "g729", NULL },
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{ SPA_MEDIA_SUBTYPE_amr, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "amr", NULL },
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{ SPA_MEDIA_SUBTYPE_gsm, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "gsm", NULL },
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{ SPA_MEDIA_SUBTYPE_alac, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "alac", NULL },
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/* video subtypes */
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{ SPA_MEDIA_SUBTYPE_h264, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "h264", NULL },
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{ SPA_MEDIA_SUBTYPE_mjpg, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "mjpg", NULL },
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@ -68,6 +68,7 @@ enum spa_media_subtype {
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SPA_MEDIA_SUBTYPE_g729,
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SPA_MEDIA_SUBTYPE_amr,
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SPA_MEDIA_SUBTYPE_gsm,
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SPA_MEDIA_SUBTYPE_alac, /** since 0.3.65 */
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SPA_MEDIA_SUBTYPE_START_Video = 0x20000,
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SPA_MEDIA_SUBTYPE_h264,
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