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pipewire/spa/include/spa/param/format.h
Jonas Ådahl 58b958860e stream: Add DRM device negotiation 
A DMA buffer from a DRM device are typically accessed using API related
to a DRM device, e.g. Vulkan or EGL. To create such a context for using
with a PipeWire stream that passed DRM device DMA buffers applications
have so far usually guessed or made use of the same context as the
stream content will be presented. This has mostly been the Wayland
EGL/Vulkan context, and while this has most of the time worked, it's
somewhat by accident, and for reliable operation, PipeWire must be aware
of what DRM device a DMA buffer should be accessed using.

To address this, introduce device ID negotation, allowing sources and
sinks to negotiate what DRM device is supported, and what formats and
modifiers are supported by them.

This will allow applications to stop relying on luck or the windowing
system to figure out how to access the DMA buffers. It also paves the
way for being able to use multiple GPUs for different video streams,
depending on what the sources and sinks support.
2026-01-14 08:15:43 +00:00

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/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#ifndef SPA_PARAM_FORMAT_H
#define SPA_PARAM_FORMAT_H
#include <spa/param/param.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \addtogroup spa_param
* \{
*/
/** media type for SPA_TYPE_OBJECT_Format */
enum spa_media_type {
SPA_MEDIA_TYPE_unknown,
SPA_MEDIA_TYPE_audio,
SPA_MEDIA_TYPE_video,
SPA_MEDIA_TYPE_image,
SPA_MEDIA_TYPE_binary,
SPA_MEDIA_TYPE_stream,
SPA_MEDIA_TYPE_application,
};
/** media subtype for SPA_TYPE_OBJECT_Format */
enum spa_media_subtype {
SPA_MEDIA_SUBTYPE_unknown,
SPA_MEDIA_SUBTYPE_raw,
SPA_MEDIA_SUBTYPE_dsp,
SPA_MEDIA_SUBTYPE_iec958, /** S/PDIF */
SPA_MEDIA_SUBTYPE_dsd,
SPA_MEDIA_SUBTYPE_START_Audio = 0x10000,
SPA_MEDIA_SUBTYPE_mp3,
SPA_MEDIA_SUBTYPE_aac,
SPA_MEDIA_SUBTYPE_vorbis,
SPA_MEDIA_SUBTYPE_wma,
SPA_MEDIA_SUBTYPE_ra,
SPA_MEDIA_SUBTYPE_sbc,
SPA_MEDIA_SUBTYPE_adpcm,
SPA_MEDIA_SUBTYPE_g723,
SPA_MEDIA_SUBTYPE_g726,
SPA_MEDIA_SUBTYPE_g729,
SPA_MEDIA_SUBTYPE_amr,
SPA_MEDIA_SUBTYPE_gsm,
SPA_MEDIA_SUBTYPE_alac, /** since 0.3.65 */
SPA_MEDIA_SUBTYPE_flac, /** since 0.3.65 */
SPA_MEDIA_SUBTYPE_ape, /** since 0.3.65 */
SPA_MEDIA_SUBTYPE_opus, /** since 0.3.68 */
SPA_MEDIA_SUBTYPE_ac3, /** since 1.5.1 */
SPA_MEDIA_SUBTYPE_eac3, /** since 1.5.1 */
SPA_MEDIA_SUBTYPE_truehd, /** since 1.5.1 */
SPA_MEDIA_SUBTYPE_dts, /** since 1.5.1 */
SPA_MEDIA_SUBTYPE_mpegh, /** since 1.5.1 */
SPA_MEDIA_SUBTYPE_START_Video = 0x20000,
SPA_MEDIA_SUBTYPE_h264,
SPA_MEDIA_SUBTYPE_mjpg,
SPA_MEDIA_SUBTYPE_dv,
SPA_MEDIA_SUBTYPE_mpegts,
SPA_MEDIA_SUBTYPE_h263,
SPA_MEDIA_SUBTYPE_mpeg1,
SPA_MEDIA_SUBTYPE_mpeg2,
SPA_MEDIA_SUBTYPE_mpeg4,
SPA_MEDIA_SUBTYPE_xvid,
SPA_MEDIA_SUBTYPE_vc1,
SPA_MEDIA_SUBTYPE_vp8,
SPA_MEDIA_SUBTYPE_vp9,
SPA_MEDIA_SUBTYPE_bayer,
SPA_MEDIA_SUBTYPE_h265,
SPA_MEDIA_SUBTYPE_START_Image = 0x30000,
SPA_MEDIA_SUBTYPE_jpeg,
SPA_MEDIA_SUBTYPE_START_Binary = 0x40000,
SPA_MEDIA_SUBTYPE_START_Stream = 0x50000,
SPA_MEDIA_SUBTYPE_midi,
SPA_MEDIA_SUBTYPE_START_Application = 0x60000,
SPA_MEDIA_SUBTYPE_control, /**< control stream, data contains
* spa_pod_sequence with control info. */
};
/** properties for audio SPA_TYPE_OBJECT_Format */
enum spa_format {
SPA_FORMAT_START,
SPA_FORMAT_mediaType, /**< media type (Id enum spa_media_type) */
SPA_FORMAT_mediaSubtype, /**< media subtype (Id enum spa_media_subtype) */
/* Audio format keys */
SPA_FORMAT_START_Audio = 0x10000,
SPA_FORMAT_AUDIO_format, /**< audio format, (Id enum spa_audio_format) */
SPA_FORMAT_AUDIO_flags, /**< optional flags (Int) */
SPA_FORMAT_AUDIO_rate, /**< sample rate (Int) */
SPA_FORMAT_AUDIO_channels, /**< number of audio channels (Int) */
SPA_FORMAT_AUDIO_position, /**< channel positions (Id enum spa_audio_position) */
SPA_FORMAT_AUDIO_iec958Codec, /**< codec used (IEC958) (Id enum spa_audio_iec958_codec) */
SPA_FORMAT_AUDIO_bitorder, /**< bit order (Id enum spa_param_bitorder) */
SPA_FORMAT_AUDIO_interleave, /**< Interleave bytes (Int) */
SPA_FORMAT_AUDIO_bitrate, /**< bit rate (Int) */
SPA_FORMAT_AUDIO_blockAlign, /**< audio data block alignment (Int) */
SPA_FORMAT_AUDIO_AAC_streamFormat, /**< AAC stream format, (Id enum spa_audio_aac_stream_format) */
SPA_FORMAT_AUDIO_WMA_profile, /**< WMA profile (Id enum spa_audio_wma_profile) */
SPA_FORMAT_AUDIO_AMR_bandMode, /**< AMR band mode (Id enum spa_audio_amr_band_mode) */
SPA_FORMAT_AUDIO_MP3_channelMode, /**< MP3 channel mode, (Id enum spa_audio_mp3_channel_mode) */
SPA_FORMAT_AUDIO_DTS_extType, /**< DTS extension type (Id enum spa_audio_dts_ext_type) */
/* Video Format keys */
SPA_FORMAT_START_Video = 0x20000,
SPA_FORMAT_VIDEO_format, /**< video format (Id enum spa_video_format) */
SPA_FORMAT_VIDEO_modifier, /**< format modifier (Long)
* use only with DMA-BUF and omit for other buffer types */
SPA_FORMAT_VIDEO_size, /**< size (Rectangle) */
SPA_FORMAT_VIDEO_framerate, /**< frame rate (Fraction) */
SPA_FORMAT_VIDEO_maxFramerate, /**< maximum frame rate (Fraction) */
SPA_FORMAT_VIDEO_views, /**< number of views (Int) */
SPA_FORMAT_VIDEO_interlaceMode, /**< (Id enum spa_video_interlace_mode) */
SPA_FORMAT_VIDEO_pixelAspectRatio, /**< (Rectangle) */
SPA_FORMAT_VIDEO_multiviewMode, /**< (Id enum spa_video_multiview_mode) */
SPA_FORMAT_VIDEO_multiviewFlags, /**< (Id enum spa_video_multiview_flags) */
SPA_FORMAT_VIDEO_chromaSite, /**< /Id enum spa_video_chroma_site) */
SPA_FORMAT_VIDEO_colorRange, /**< /Id enum spa_video_color_range) */
SPA_FORMAT_VIDEO_colorMatrix, /**< /Id enum spa_video_color_matrix) */
SPA_FORMAT_VIDEO_transferFunction, /**< /Id enum spa_video_transfer_function) */
SPA_FORMAT_VIDEO_colorPrimaries, /**< /Id enum spa_video_color_primaries) */
SPA_FORMAT_VIDEO_profile, /**< (Int) */
SPA_FORMAT_VIDEO_level, /**< (Int) */
SPA_FORMAT_VIDEO_H264_streamFormat, /**< (Id enum spa_h264_stream_format) */
SPA_FORMAT_VIDEO_H264_alignment, /**< (Id enum spa_h264_alignment) */
SPA_FORMAT_VIDEO_H265_streamFormat, /**< (Id enum spa_h265_stream_format) */
SPA_FORMAT_VIDEO_H265_alignment, /**< (Id enum spa_h265_alignment) */
SPA_FORMAT_VIDEO_deviceId, /**< dev_t identifier (Bytes) */
/* Image Format keys */
SPA_FORMAT_START_Image = 0x30000,
/* Binary Format keys */
SPA_FORMAT_START_Binary = 0x40000,
/* Stream Format keys */
SPA_FORMAT_START_Stream = 0x50000,
/* Application Format keys */
SPA_FORMAT_START_Application = 0x60000,
SPA_FORMAT_CONTROL_types, /**< possible control types (flags choice Int,
* mask of enum spa_control_type) */
};
#define SPA_KEY_FORMAT_DSP "format.dsp" /**< a predefined DSP format,
* Ex. "32 bit float mono audio" */
/**
* \}
*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_PARAM_FORMAT_H */
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