diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0488-media-videodev2.h-add-V4L2_DEC_CMD_FLUSH.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0488-media-videodev2.h-add-V4L2_DEC_CMD_FLUSH.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0488-media-videodev2.h-add-V4L2_DEC_CMD_FLUSH.patch b/target/linux/bcm27xx/patches-5.4/950-0488-media-videodev2.h-add-V4L2_DEC_CMD_FLUSH.patch new file mode 100644 index 0000000000..56fee1e029 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0488-media-videodev2.h-add-V4L2_DEC_CMD_FLUSH.patch @@ -0,0 +1,57 @@ +From b2ea711d2c21ec021de4ff09a0a2b5b4224f9749 Mon Sep 17 00:00:00 2001 +From: Hans Verkuil <hverkuil-cisco@xs4all.nl> +Date: Fri, 11 Oct 2019 06:32:42 -0300 +Subject: [PATCH] media: videodev2.h: add V4L2_DEC_CMD_FLUSH + +Add this new V4L2_DEC_CMD_FLUSH decoder command and document it. + +Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> +Reviewed-by: Alexandre Courbot <acourbot@chromium.org> +Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> +Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> +Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> +--- + Documentation/media/uapi/v4l/vidioc-decoder-cmd.rst | 10 +++++++++- + Documentation/media/videodev2.h.rst.exceptions | 1 + + include/uapi/linux/videodev2.h | 1 + + 3 files changed, 11 insertions(+), 1 deletion(-) + +--- a/Documentation/media/uapi/v4l/vidioc-decoder-cmd.rst ++++ b/Documentation/media/uapi/v4l/vidioc-decoder-cmd.rst +@@ -208,7 +208,15 @@ introduced in Linux 3.3. They are, howev + been started yet, the driver will return an ``EPERM`` error code. When + the decoder is already running, this command does nothing. No + flags are defined for this command. +- ++ * - ``V4L2_DEC_CMD_FLUSH`` ++ - 4 ++ - Flush any held capture buffers. Only valid for stateless decoders. ++ This command is typically used when the application reached the ++ end of the stream and the last output buffer had the ++ ``V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF`` flag set. This would prevent ++ dequeueing the capture buffer containing the last decoded frame. ++ So this command can be used to explicitly flush that final decoded ++ frame. This command does nothing if there are no held capture buffers. + + Return Value + ============ +--- a/Documentation/media/videodev2.h.rst.exceptions ++++ b/Documentation/media/videodev2.h.rst.exceptions +@@ -434,6 +434,7 @@ replace define V4L2_DEC_CMD_START decode + replace define V4L2_DEC_CMD_STOP decoder-cmds + replace define V4L2_DEC_CMD_PAUSE decoder-cmds + replace define V4L2_DEC_CMD_RESUME decoder-cmds ++replace define V4L2_DEC_CMD_FLUSH decoder-cmds + + replace define V4L2_DEC_CMD_START_MUTE_AUDIO decoder-cmds + replace define V4L2_DEC_CMD_PAUSE_TO_BLACK decoder-cmds +--- a/include/uapi/linux/videodev2.h ++++ b/include/uapi/linux/videodev2.h +@@ -1988,6 +1988,7 @@ struct v4l2_encoder_cmd { + #define V4L2_DEC_CMD_STOP (1) + #define V4L2_DEC_CMD_PAUSE (2) + #define V4L2_DEC_CMD_RESUME (3) ++#define V4L2_DEC_CMD_FLUSH (4) + + /* Flags for V4L2_DEC_CMD_START */ + #define V4L2_DEC_CMD_START_MUTE_AUDIO (1 << 0) |