Thread (32 messages) flat view 32 messages, 5 authors, 2024-02-23
STALE926d

Revision v12 of 9 in this series.

Revisions (9)
  1. v7 [diff vs current]
  2. v8 [diff vs current]
  3. v9 [diff vs current]
  4. v10 [diff vs current]
  5. v11 [diff vs current]
  6. v12 current
  7. v13 [diff vs current]
  8. v14 [diff vs current]
  9. v15 [diff vs current]

[PATCH v12 12/15] media: uapi: Add an entity type for audio resampler

From: Shengjiu Wang <hidden>
Date: 2024-01-18 13:15:09
Also in: alsa-devel, linux-media, lkml
Subsystem: media controller framework, media input infrastructure (v4l/dvb), the rest · Maintainers: Sakari Ailus, Laurent Pinchart, Mauro Carvalho Chehab, Linus Torvalds

Add and document a media entity type for an audio resampler.
It is MEDIA_ENT_F_PROC_AUDIO_RESAMPLER.

Signed-off-by: Shengjiu Wang <redacted>
---
 Documentation/userspace-api/media/mediactl/media-types.rst | 6 ++++++
 include/uapi/linux/media.h                                 | 1 +
 2 files changed, 7 insertions(+)
diff --git a/Documentation/userspace-api/media/mediactl/media-types.rst b/Documentation/userspace-api/media/mediactl/media-types.rst
index f0880aea41d6..9ca6542517d5 100644
--- a/Documentation/userspace-api/media/mediactl/media-types.rst
+++ b/Documentation/userspace-api/media/mediactl/media-types.rst
@@ -40,6 +40,7 @@ Types and flags used to represent the media graph elements
 .. _MEDIA-ENT-F-PROC-VIDEO-ENCODER:
 .. _MEDIA-ENT-F-PROC-VIDEO-DECODER:
 .. _MEDIA-ENT-F-PROC-VIDEO-ISP:
+.. _MEDIA-ENT-F-PROC-AUDIO-RESAMPLER:
 .. _MEDIA-ENT-F-VID-MUX:
 .. _MEDIA-ENT-F-VID-IF-BRIDGE:
 .. _MEDIA-ENT-F-DV-DECODER:
@@ -208,6 +209,11 @@ Types and flags used to represent the media graph elements
 	  combination of custom V4L2 controls and IOCTLs, and parameters
 	  supplied in a metadata buffer.
 
+    *  -  ``MEDIA_ENT_F_PROC_AUDIO_RESAMPLER``
+       -  An Audio Resampler device. An entity capable of
+	  resampling an audio stream from one sample rate to another sample
+	  rate. Must have one sink pad and at least one source pad.
+
     *  -  ``MEDIA_ENT_F_VID_MUX``
        - Video multiplexer. An entity capable of multiplexing must have at
          least two sink pads and one source pad, and must pass the video
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 9ff6dec7393a..a8266eaa8042 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -125,6 +125,7 @@ struct media_device_info {
 #define MEDIA_ENT_F_PROC_VIDEO_ENCODER		(MEDIA_ENT_F_BASE + 0x4007)
 #define MEDIA_ENT_F_PROC_VIDEO_DECODER		(MEDIA_ENT_F_BASE + 0x4008)
 #define MEDIA_ENT_F_PROC_VIDEO_ISP		(MEDIA_ENT_F_BASE + 0x4009)
+#define MEDIA_ENT_F_PROC_AUDIO_RESAMPLER	(MEDIA_ENT_F_BASE + 0x400a)
 
 /*
  * Switch and bridge entity functions
-- 
2.34.1
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help