Message ID | 20220715073800.11321-1-ming.qian@nxp.com (mailing list archive) |
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State | Accepted |
Delegated to: | Hans Verkuil |
Headers |
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Series |
media: amphion: adjust the encoder's value range of gop size
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Commit Message
Ming Qian
July 15, 2022, 7:38 a.m. UTC
adjust the value range of gop size from [0, 65535] to [1, 8000].
when the gop size is set to a too large value,
it may affect the encoded picture quality.
so constrain it to a reasonable range.
Fixes: 0401e659c1f92 ("media: amphion: add v4l2 m2m vpu encoder stateful driver")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
---
drivers/media/platform/amphion/venc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/amphion/venc.c b/drivers/media/platform/amphion/venc.c index 461524dd1e44..37212f087fdd 100644 --- a/drivers/media/platform/amphion/venc.c +++ b/drivers/media/platform/amphion/venc.c @@ -644,7 +644,7 @@ static int venc_ctrl_init(struct vpu_inst *inst) BITRATE_DEFAULT_PEAK); v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops, - V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, (1 << 16) - 1, 1, 30); + V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 8000, 1, 30); v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops, V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 4, 1, 0);