android_external_ffmpeg/libavutil/hwcontext_v4l2request.h
Jonas Karlman 4216090524 avutil/hwcontext: Add hwdevice type for V4L2 Request API
Add a hwdevice type for V4L2 Request API with transfer_data_from support
for AV_PIX_FMT_DRM_PRIME, based on AV_HWDEVICE_TYPE_DRM.

AVV4L2RequestDeviceContext.media_fd can be set by the application or a
media device path can be supplied when hwdevice is created. When none
is supplied it default to -1 and hwaccel will auto-detect a media device
with a capable video device.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
2025-07-09 20:38:47 +00:00

41 lines
1.2 KiB
C

/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_HWCONTEXT_V4L2REQUEST_H
#define AVUTIL_HWCONTEXT_V4L2REQUEST_H
/**
* @file
* An API-specific header for AV_HWDEVICE_TYPE_V4L2REQUEST.
*/
/**
* V4L2 Request API device details.
*
* Allocated as AVHWDeviceContext.hwctx
*/
typedef struct AVV4L2RequestDeviceContext {
/**
* File descriptor of media device.
*
* Defaults to -1 for auto-detect.
*/
int media_fd;
} AVV4L2RequestDeviceContext;
#endif /* AVUTIL_HWCONTEXT_V4L2REQUEST_H */