From efbce802e40755dd5a6e6e734b15ddb195db8a04 Mon Sep 17 00:00:00 2001 From: Wim Taymans Date: Fri, 13 Jan 2023 15:13:48 +0100 Subject: [PATCH] spa: add ALAC format --- spa/include/spa/param/audio/alac-utils.h | 79 ++++++++++++++++++++++ spa/include/spa/param/audio/alac.h | 49 ++++++++++++++ spa/include/spa/param/audio/format-utils.h | 5 ++ spa/include/spa/param/audio/format.h | 2 + spa/include/spa/param/format-types.h | 1 + spa/include/spa/param/format.h | 1 + 6 files changed, 137 insertions(+) create mode 100644 spa/include/spa/param/audio/alac-utils.h create mode 100644 spa/include/spa/param/audio/alac.h diff --git a/spa/include/spa/param/audio/alac-utils.h b/spa/include/spa/param/audio/alac-utils.h new file mode 100644 index 000000000..b515e0691 --- /dev/null +++ b/spa/include/spa/param/audio/alac-utils.h @@ -0,0 +1,79 @@ +/* Simple Plugin API + * + * Copyright © 2023 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef SPA_AUDIO_ALAC_UTILS_H +#define SPA_AUDIO_ALAC_UTILS_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \addtogroup spa_param + * \{ + */ + +#include +#include +#include +#include + +static inline int +spa_format_audio_alac_parse(const struct spa_pod *format, struct spa_audio_info_alac *info) +{ + int res; + res = spa_pod_parse_object(format, + SPA_TYPE_OBJECT_Format, NULL, + SPA_FORMAT_AUDIO_rate, SPA_POD_OPT_Int(&info->rate), + SPA_FORMAT_AUDIO_channels, SPA_POD_OPT_Int(&info->channels)); + return res; +} + +static inline struct spa_pod * +spa_format_audio_alac_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_alac *info) +{ + struct spa_pod_frame f; + spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id); + spa_pod_builder_add(builder, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_alac), + 0); + if (info->rate != 0) + spa_pod_builder_add(builder, + SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0); + if (info->channels != 0) + spa_pod_builder_add(builder, + SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0); + return (struct spa_pod*)spa_pod_builder_pop(builder, &f); +} + +/** + * \} + */ + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* SPA_AUDIO_ALAC_UTILS_H */ diff --git a/spa/include/spa/param/audio/alac.h b/spa/include/spa/param/audio/alac.h new file mode 100644 index 000000000..37ae170df --- /dev/null +++ b/spa/include/spa/param/audio/alac.h @@ -0,0 +1,49 @@ +/* Simple Plugin API + * + * Copyright © 2023 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef SPA_AUDIO_ALAC_H +#define SPA_AUDIO_ALAC_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include + +struct spa_audio_info_alac { + uint32_t rate; /*< sample rate */ + uint32_t channels; /*< number of channels */ +}; + +#define SPA_AUDIO_INFO_ALAC_INIT(...) ((struct spa_audio_info_alac) { __VA_ARGS__ }) + +/** + * \} + */ + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* SPA_AUDIO_ALAC_H */ diff --git a/spa/include/spa/param/audio/format-utils.h b/spa/include/spa/param/audio/format-utils.h index bf60e1a49..58934871a 100644 --- a/spa/include/spa/param/audio/format-utils.h +++ b/spa/include/spa/param/audio/format-utils.h @@ -44,6 +44,7 @@ extern "C" { #include #include #include +#include /** @@ -83,6 +84,8 @@ spa_format_audio_parse(const struct spa_pod *format, struct spa_audio_info *info return spa_format_audio_ra_parse(format, &info->info.ra); case SPA_MEDIA_SUBTYPE_amr: return spa_format_audio_amr_parse(format, &info->info.amr); + case SPA_MEDIA_SUBTYPE_alac: + return spa_format_audio_alac_parse(format, &info->info.alac); } return -ENOTSUP; } @@ -111,6 +114,8 @@ spa_format_audio_build(struct spa_pod_builder *builder, uint32_t id, struct spa_ return spa_format_audio_ra_build(builder, id, &info->info.ra); case SPA_MEDIA_SUBTYPE_amr: return spa_format_audio_amr_build(builder, id, &info->info.amr); + case SPA_MEDIA_SUBTYPE_alac: + return spa_format_audio_alac_build(builder, id, &info->info.alac); } errno = ENOTSUP; return NULL; diff --git a/spa/include/spa/param/audio/format.h b/spa/include/spa/param/audio/format.h index 475cd3e0e..f7a82189b 100644 --- a/spa/include/spa/param/audio/format.h +++ b/spa/include/spa/param/audio/format.h @@ -45,6 +45,7 @@ extern "C" { #include #include #include +#include struct spa_audio_info { uint32_t media_type; @@ -60,6 +61,7 @@ struct spa_audio_info { struct spa_audio_info_wma wma; struct spa_audio_info_ra ra; struct spa_audio_info_amr amr; + struct spa_audio_info_alac alac; } info; }; diff --git a/spa/include/spa/param/format-types.h b/spa/include/spa/param/format-types.h index a0fd6fa00..00b0d2456 100644 --- a/spa/include/spa/param/format-types.h +++ b/spa/include/spa/param/format-types.h @@ -80,6 +80,7 @@ static const struct spa_type_info spa_type_media_subtype[] = { { SPA_MEDIA_SUBTYPE_g729, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "g729", NULL }, { SPA_MEDIA_SUBTYPE_amr, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "amr", NULL }, { SPA_MEDIA_SUBTYPE_gsm, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "gsm", NULL }, + { SPA_MEDIA_SUBTYPE_alac, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "alac", NULL }, /* video subtypes */ { SPA_MEDIA_SUBTYPE_h264, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "h264", NULL }, { SPA_MEDIA_SUBTYPE_mjpg, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "mjpg", NULL }, diff --git a/spa/include/spa/param/format.h b/spa/include/spa/param/format.h index a2fddf91b..1abe26ee2 100644 --- a/spa/include/spa/param/format.h +++ b/spa/include/spa/param/format.h @@ -68,6 +68,7 @@ enum spa_media_subtype { SPA_MEDIA_SUBTYPE_g729, SPA_MEDIA_SUBTYPE_amr, SPA_MEDIA_SUBTYPE_gsm, + SPA_MEDIA_SUBTYPE_alac, /** since 0.3.65 */ SPA_MEDIA_SUBTYPE_START_Video = 0x20000, SPA_MEDIA_SUBTYPE_h264,