github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-31 02:24:24 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

media: vidtv: Rename PI definition to PI_SAMPLES

Browse Source 
The definition of PI in the driver is not the actual value in radians,
but rather degrees. Since we are going to have a value in radians
defined in a global header, rename this definition to avoid potential
collisions. No functional changes.

Acked-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Andy Shevchenko 2025-11-07 21:02:59 +01:00 committed by Hans Verkuil
parent ec6c3e3f0e
commit 01537c973d
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/media/test-drivers/vidtv/vidtv_s302m.c
View File

@ -45,7 +45,7 @@
#define FF_S302M_DEFAULT_PTS_OFFSET 100000
/* Used by the tone generator: number of samples for PI */
#define PI 180
#define PI_SAMPLES 180
static const u8 reverse[256] = {
/* from ffmpeg */
@ -259,10 +259,10 @@ static u16 vidtv_s302m_get_sample(struct vidtv_encoder *e)
if (!ctx->last_tone)
return 0x8000;
pos = (2 * PI * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ;
pos = (2 * PI_SAMPLES * ctx->note_offset * ctx->last_tone) / S302M_SAMPLING_RATE_HZ;
ctx->note_offset++;
return (fixp_sin32(pos % (2 * PI)) >> 16) + 0x8000;
return (fixp_sin32(pos % (2 * PI_SAMPLES)) >> 16) + 0x8000;
}
/* bug somewhere */