#include <OMX_Types.h>#include <OMX_Component.h>#include <OMX_Core.h>#include <OMX_Video.h>#include <OMX_IVCommon.h>#include <pthread.h>#include <sys/ioctl.h>#include <sys/mman.h>#include <fcntl.h>#include <unistd.h>#include <string.h>#include <sys/time.h>#include <omx_base_video_port.h>#include <omx_base_sink.h>#include <linux/fb.h>Go to the source code of this file.
Originally developed by Peter Littlefield Copyright (C) 2007 STMicroelectronics and Agere Systems
This library 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.
This library 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 this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
$Date$ Revision $Rev$ Author $Author$
OpenMAX FBDEV sink component. This component is a video sink that copies data to a >inux framebuffer device.
Originally developed by Peter Littlefield Copyright (C) 2007 STMicroelectronics and Agere Systems
This library 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.
This library 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 this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
$Date$ Revision $Rev$ Author $Author$
Definition in file omx_fbdev_sink_component.h.
| #define FBDEV_FILENAME "/dev/fb0" |
Filename of devnode for framebuffer device Should somehow be passed from client
Definition at line 53 of file omx_fbdev_sink_component.h.
Referenced by omx_fbdev_sink_component_Init().
| #define MAX_NUM_OF_fbdev_sink_component_INSTANCES 2 |
Maximum number of sink component instances
Definition at line 56 of file omx_fbdev_sink_component.h.
Referenced by omx_fbdev_sink_component_Constructor().
| #define omx_fbdev_sink_component_PortType_FIELDS |
Value:
omx_base_video_PortType_FIELDS \ \ OMX_CONFIG_RECTTYPE omxConfigCrop; \ \ OMX_CONFIG_ROTATIONTYPE omxConfigRotate; \ \ OMX_CONFIG_MIRRORTYPE omxConfigMirror; \ \ OMX_CONFIG_SCALEFACTORTYPE omxConfigScale; \ \ OMX_CONFIG_POINTTYPE omxConfigOutputPosition;
Definition at line 61 of file omx_fbdev_sink_component.h.
| #define omx_fbdev_sink_component_PrivateType_FIELDS |
Value:
omx_base_sink_PrivateType_FIELDS \ \ int fd; \ \ struct fb_var_screeninfo vscr_info; \ \ struct fb_fix_screeninfo fscr_info; \ \ unsigned char *scr_ptr; \ \ OMX_COLOR_FORMATTYPE fbpxlfmt; \ \ OMX_U32 fbwidth; \ \ OMX_U32 fbheight; \ \ OMX_U32 fbbpp; \ \ OMX_S32 fbstride; \ \ OMX_U32 product;
Definition at line 78 of file omx_fbdev_sink_component.h.
| OMX_S32 calcStride | ( | OMX_U32 | width, | |
| OMX_COLOR_FORMATTYPE | omx_pxlfmt | |||
| ) |
finds video stride from input dimension and color format
This function takes two inputs -
| width | is the input picture width | |
| omx_pxlfmt | is the input openmax standard pixel format It calculates the byte per pixel needed to display the picture with the input omx_pxlfmt The output stride for display is thus omx_fbdev_sink_component_Private->product of input width and byte per pixel |
| width | is the input picture width | |
| omx_pxlfmt | is the input openmax standard pixel format It calculates the byte per pixel needed to display the picture with the input omx_pxlfmt The output stride for display is thus product of input width and byte per pixel |
Definition at line 291 of file omx_fbdev_sink_component.c.
| enum PixelFormat find_ffmpeg_pxlfmt | ( | OMX_COLOR_FORMATTYPE | omx_pxlfmt | ) |
finds FFmpeg supported pixel format from input OpenMAX standard pixel format
Figure out equivalent FFmpeg PixelFormat based on OMX_COLOR_FORMATTYPE
| omx_pxlfmt | is the input OpenMAX standard pixel format output is the FFmpeg library supported pixel format corresponding to this input pixel format this output FFmpeg pixel format will be needed in port parameter settings |
Definition at line 50 of file omx_ffmpeg_colorconv_component.c.
Referenced by omx_ffmpeg_colorconv_component_SetParameter().
| OMX_COLOR_FORMATTYPE find_omx_pxlfmt | ( | struct fb_var_screeninfo * | vscr_info | ) |
function prototypes of some internal functions finds OpenMAX standard pixel format from screen info
Returns the OpenMAX color format type corresponding to an fbdev fb_var_screeninfo structure
| vscr_info | contains the frame buffer display settings We extract the rgba configuration of the frame buffer from this structure and thereby apply the appropriate OpenMAX standard color format equivalent to this configuration the r,g,b,a content length is needed to get the bit per pixel values r,g,b,a content offsets determine their respective positions |
check if gray scale - if so then, switch according to bit per pixel criteria
now check the rgba components and set the corresponding color formats
Definition at line 373 of file omx_fbdev_sink_component.c.
References OMX_COLOR_Format12bitRGB444, OMX_COLOR_Format16bitARGB1555, OMX_COLOR_Format16bitARGB4444, OMX_COLOR_Format16bitBGR565, OMX_COLOR_Format16bitRGB565, OMX_COLOR_Format18bitARGB1665, OMX_COLOR_Format18bitRGB666, OMX_COLOR_Format19bitARGB1666, OMX_COLOR_Format24bitARGB1887, OMX_COLOR_Format24bitBGR888, OMX_COLOR_Format24bitRGB888, OMX_COLOR_Format25bitARGB1888, OMX_COLOR_Format32bitARGB8888, OMX_COLOR_Format32bitBGRA8888, OMX_COLOR_Format8bitRGB332, OMX_COLOR_FormatL16, OMX_COLOR_FormatL2, OMX_COLOR_FormatL24, OMX_COLOR_FormatL32, OMX_COLOR_FormatL4, OMX_COLOR_FormatL8, OMX_COLOR_FormatMonochrome, and OMX_COLOR_FormatUnused.
Referenced by omx_fbdev_sink_component_Init().
| long GetTime | ( | ) |
Returns a time value in milliseconds based on a clock starting at some arbitrary base. Given a call to GetTime that returns a value of n a subsequent call to GetTime made m milliseconds later should return a value of (approximately) (n+m). This method is used, for instance, to compute the duration of call.
Definition at line 48 of file omx_fbdev_sink_component.c.
Referenced by omx_fbdev_sink_component_BufferMgmtCallback().
| void omx_fbdev_sink_component_BufferMgmtCallback | ( | OMX_COMPONENTTYPE * | openmaxStandComp, | |
| OMX_BUFFERHEADERTYPE * | pInputBuffer | |||
| ) |
buffer management callback function takes one input buffer and displays its contents
FIXME: Configuration values should be clamped to prevent memory trampling and potential segfaults. It might be best to store clamped AND unclamped values on a per-port basis so that OMX_GetConfig can still return the unclamped ones.
getting current time
Copy image data into in_buffer
Definition at line 955 of file omx_fbdev_sink_component.c.
References GetTime(), HEIGHT_OFFSET, OMX_BUFFERHEADERTYPE::nFilledLen, OMX_BASE_SINK_INPUTPORT_INDEX, omx_img_copy(), OMX_MirrorBoth, OMX_MirrorVertical, OMX_BUFFERHEADERTYPE::pBuffer, and OMX_COMPONENTTYPE::pComponentPrivate.
Referenced by omx_fbdev_sink_component_Constructor().
| OMX_ERRORTYPE omx_fbdev_sink_component_Constructor | ( | OMX_COMPONENTTYPE * | openmaxStandComp, | |
| OMX_STRING | cComponentName | |||
| ) |
The Constructor
| cComponentName | is the name of the constructed component |
we could create our own port structures here fixme maybe the base class could use a "port factory" function pointer?
Allocate Ports and call port constructor.
Domain specific section for the allocated port.
Set configs
set the function pointers
Definition at line 57 of file omx_fbdev_sink_component.c.
References base_video_port_Constructor(), calcStride(), DEB_LEV_ERR, DEB_LEV_FUNCTION_NAME, DEB_LEV_PARAMS, DEBUG, err, OMX_COMPONENTTYPE::GetParameter, MAX_NUM_OF_fbdev_sink_component_INSTANCES, omx_base_sink_Constructor(), OMX_BASE_SINK_INPUTPORT_INDEX, OMX_COLOR_Format24bitRGB888, OMX_ErrorInsufficientResources, OMX_ErrorNone, omx_fbdev_sink_component_BufferMgmtCallback(), omx_fbdev_sink_component_Destructor(), omx_fbdev_sink_component_GetParameter(), omx_fbdev_sink_component_MessageHandler(), omx_fbdev_sink_component_SetParameter(), OMX_MirrorNone, OMX_TRUE, OMX_COMPONENTTYPE::pComponentPrivate, setHeader(), and OMX_COMPONENTTYPE::SetParameter.
Referenced by omx_component_library_Setup().
| OMX_ERRORTYPE omx_fbdev_sink_component_Deinit | ( | OMX_COMPONENTTYPE * | openmaxStandComp | ) |
The deinitialization function It deallocates the frame buffer memory, and closes frame buffer
Definition at line 273 of file omx_fbdev_sink_component.c.
References OMX_ErrorHardware, OMX_ErrorNone, and OMX_COMPONENTTYPE::pComponentPrivate.
Referenced by omx_fbdev_sink_component_MessageHandler().
| OMX_ERRORTYPE omx_fbdev_sink_component_Destructor | ( | OMX_COMPONENTTYPE * | openmaxStandComp | ) |
The Destructor
Definition at line 157 of file omx_fbdev_sink_component.c.
References omx_base_sink_Destructor(), OMX_ErrorNone, and OMX_COMPONENTTYPE::pComponentPrivate.
Referenced by omx_fbdev_sink_component_Constructor().
| OMX_ERRORTYPE omx_fbdev_sink_component_GetConfig | ( | OMX_IN OMX_HANDLETYPE | hComponent, | |
| OMX_IN OMX_INDEXTYPE | nIndex, | |||
| OMX_INOUT OMX_PTR | pComponentConfigStructure | |||
| ) |
Definition at line 1128 of file omx_fbdev_sink_component.c.
References DEB_LEV_SIMPLE_SEQ, DEBUG, OMX_CONFIG_POINTTYPE::nPortIndex, OMX_CONFIG_SCALEFACTORTYPE::nPortIndex, OMX_CONFIG_MIRRORTYPE::nPortIndex, OMX_CONFIG_ROTATIONTYPE::nPortIndex, OMX_CONFIG_RECTTYPE::nPortIndex, omx_base_component_GetConfig(), OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexConfigCommonInputCrop, OMX_IndexConfigCommonMirror, OMX_IndexConfigCommonOutputPosition, OMX_IndexConfigCommonRotate, OMX_IndexConfigCommonScale, OMX_COMPONENTTYPE::pComponentPrivate, and setHeader().
| OMX_ERRORTYPE omx_fbdev_sink_component_GetParameter | ( | OMX_IN OMX_HANDLETYPE | hComponent, | |
| OMX_IN OMX_INDEXTYPE | nParamIndex, | |||
| OMX_INOUT OMX_PTR | ComponentParameterStructure | |||
| ) |
Definition at line 1295 of file omx_fbdev_sink_component.c.
References checkHeader(), DEB_LEV_SIMPLE_SEQ, DEBUG, err, OMX_VIDEO_PARAM_PORTFORMATTYPE::nPortIndex, omx_base_component_GetParameter(), OMX_BASE_SINK_INPUTPORT_INDEX, OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_IndexParamVideoInit, OMX_IndexParamVideoPortFormat, and OMX_COMPONENTTYPE::pComponentPrivate.
Referenced by omx_fbdev_sink_component_Constructor().
| OMX_ERRORTYPE omx_fbdev_sink_component_Init | ( | OMX_COMPONENTTYPE * | openmaxStandComp | ) |
The initialization function This function opens the frame buffer device and allocates memory for display also it finds the frame buffer supported display formats
frame buffer display configuration get
From the frame buffer display rgb formats, find the corresponding standard OMX format It is needed to convert the input rgb content onto frame buffer supported rgb content
the allocated memory has more vertical reolution than needed because we want to show the output displayed not at the corner of screen, but at the centre of upper part of screen
memory map frame buf memory
Definition at line 195 of file omx_fbdev_sink_component.c.
References calcStride2(), DEB_LEV_ERR, DEB_LEV_PARAMS, DEB_LEV_SIMPLE_SEQ, DEBUG, FBDEV_FILENAME, find_omx_pxlfmt(), HEIGHT_OFFSET, OMX_BASE_SINK_INPUTPORT_INDEX, OMX_COLOR_FormatUnused, OMX_ErrorHardware, OMX_ErrorNone, OMX_ErrorUnsupportedSetting, and OMX_COMPONENTTYPE::pComponentPrivate.
Referenced by omx_fbdev_sink_component_MessageHandler().
| OMX_ERRORTYPE omx_fbdev_sink_component_MessageHandler | ( | OMX_COMPONENTTYPE * | , | |
| internalRequestMessageType * | ||||
| ) |
Definition at line 1335 of file omx_fbdev_sink_component.c.
References DEB_LEV_ERR, DEB_LEV_SIMPLE_SEQ, DEBUG, err, internalRequestMessageType::messageParam, internalRequestMessageType::messageType, omx_base_component_MessageHandler(), OMX_CommandStateSet, OMX_ErrorNone, omx_fbdev_sink_component_Deinit(), omx_fbdev_sink_component_Init(), OMX_StateExecuting, OMX_StateIdle, and OMX_COMPONENTTYPE::pComponentPrivate.
Referenced by omx_fbdev_sink_component_Constructor().
| OMX_ERRORTYPE omx_fbdev_sink_component_SetConfig | ( | OMX_IN OMX_HANDLETYPE | hComponent, | |
| OMX_IN OMX_INDEXTYPE | nIndex, | |||
| OMX_IN OMX_PTR | pComponentConfigStructure | |||
| ) |
Definition at line 1014 of file omx_fbdev_sink_component.c.
References checkHeader(), DEB_LEV_SIMPLE_SEQ, DEBUG, OMX_CONFIG_MIRRORTYPE::eMirror, err, OMX_CONFIG_RECTTYPE::nHeight, OMX_CONFIG_RECTTYPE::nLeft, OMX_CONFIG_POINTTYPE::nPortIndex, OMX_CONFIG_SCALEFACTORTYPE::nPortIndex, OMX_CONFIG_MIRRORTYPE::nPortIndex, OMX_CONFIG_ROTATIONTYPE::nPortIndex, OMX_CONFIG_RECTTYPE::nPortIndex, OMX_CONFIG_ROTATIONTYPE::nRotation, OMX_CONFIG_RECTTYPE::nTop, OMX_CONFIG_RECTTYPE::nWidth, OMX_CONFIG_POINTTYPE::nX, OMX_CONFIG_POINTTYPE::nY, omx_base_component_SetConfig(), OMX_BASE_SINK_INPUTPORT_INDEX, OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_ErrorUnsupportedSetting, OMX_IndexConfigCommonInputCrop, OMX_IndexConfigCommonMirror, OMX_IndexConfigCommonOutputPosition, OMX_IndexConfigCommonRotate, OMX_IndexConfigCommonScale, OMX_MirrorBoth, OMX_MirrorHorizontal, OMX_COMPONENTTYPE::pComponentPrivate, OMX_CONFIG_SCALEFACTORTYPE::xHeight, and OMX_CONFIG_SCALEFACTORTYPE::xWidth.
| OMX_ERRORTYPE omx_fbdev_sink_component_SetParameter | ( | OMX_IN OMX_HANDLETYPE | hComponent, | |
| OMX_IN OMX_INDEXTYPE | nParamIndex, | |||
| OMX_IN OMX_PTR | ComponentParameterStructure | |||
| ) |
Definition at line 1206 of file omx_fbdev_sink_component.c.
References OMX_VIDEO_PORTDEFINITIONTYPE::bFlagErrorConcealment, calcStride(), OMX_VIDEO_PORTDEFINITIONTYPE::cMIMEType, DEB_LEV_ERR, DEB_LEV_SIMPLE_SEQ, DEBUG, OMX_VIDEO_PARAM_PORTFORMATTYPE::eColorFormat, OMX_VIDEO_PARAM_PORTFORMATTYPE::eCompressionFormat, err, OMX_PARAM_PORTDEFINITIONTYPE::format, OMX_VIDEO_PORTDEFINITIONTYPE::nBitrate, OMX_PARAM_PORTDEFINITIONTYPE::nBufferCountActual, OMX_VIDEO_PORTDEFINITIONTYPE::nFrameHeight, OMX_VIDEO_PORTDEFINITIONTYPE::nFrameWidth, OMX_VIDEO_PARAM_PORTFORMATTYPE::nPortIndex, OMX_PARAM_PORTDEFINITIONTYPE::nPortIndex, omx_base_component_ParameterSanityCheck(), omx_base_component_SetParameter(), OMX_ErrorBadParameter, OMX_ErrorBadPortIndex, OMX_ErrorNone, OMX_ErrorUnsupportedSetting, OMX_IndexParamPortDefinition, OMX_IndexParamVideoPortFormat, OMX_VIDEO_CodingUnused, OMX_COMPONENTTYPE::pComponentPrivate, OMX_PARAM_PORTDEFINITIONTYPE::video, OMX_VIDEO_PARAM_PORTFORMATTYPE::xFramerate, and OMX_VIDEO_PORTDEFINITIONTYPE::xFramerate.
Referenced by omx_fbdev_sink_component_Constructor().
| void omx_img_copy | ( | OMX_U8 * | src_ptr, | |
| OMX_S32 | src_stride, | |||
| OMX_U32 | src_width, | |||
| OMX_U32 | src_height, | |||
| OMX_S32 | src_offset_x, | |||
| OMX_S32 | src_offset_y, | |||
| OMX_U8 * | dest_ptr, | |||
| OMX_S32 | dest_stride, | |||
| OMX_U32 | dest_width, | |||
| OMX_U32 | dest_height, | |||
| OMX_S32 | dest_offset_x, | |||
| OMX_S32 | dest_offset_y, | |||
| OMX_S32 | cpy_width, | |||
| OMX_U32 | cpy_height, | |||
| OMX_COLOR_FORMATTYPE | colorformat, | |||
| OMX_COLOR_FORMATTYPE | fbpxlfmt | |||
| ) |
image copy function
This function copies source image to destination image of required dimension and color formats
| src_ptr | is the source image strting pointer | |
| src_stride | is the source image stride (src_width * byte_per_pixel) | |
| src_width | is source image width & src_height is source image height | |
| src_offset_x | & src_offset_y are x,y offset values (if any) from starting pointer | |
| dest_ptr | is the destination image strting pointer | |
| dest_stride | is the destination image stride (dest_width * byte_per_pixel) | |
| dest_width | is destination image width & dest_height is destination image height | |
| dest_offset_x | dest_offset_y are x,y offset values (if any) from starting pointer | |
| cpy_width | cpy_height is the source image copy width and height - it determines the portion of source image to be copied from source to destination image | |
| colorformat | is the source image color format |
CAUTION: We don't do any checking of boundaries! (FIXME - see omx_ffmpeg_colorconv_component_BufferMgmtCallback) Input frame is planar, not interleaved Feel free to add more formats if implementing them
Watch out for odd or non-multiple-of-4 (4:1:1) luma resolutions (I don't check)
Planar vs. PackedPlanar will have to be handled differently if/when slicing is implemented
OpenMAX IL spec says chroma channels are subsampled by 4x horizontally AND vertically in YUV 4:1:1. Conventional wisdom (wiki) tells us that it is only subsampled horizontally. Following OpenMAX spec anyway. Technically I guess this would be YUV 4:1:0.
Planar vs. PackedPlanar will have to be handled differently if/when slicing is implemented
Planar vs. PackedPlanar will have to be handled differently if/when slicing is implemented
Pointers to the start of each plane to make things easier
Figure out total offsets
If input stride is negative, reverse source row order
Pointers to use with memcpy
Pointers to destination planes to make things easier
Figure out total offsets
If output stride is negative, reverse destination row order
Pointers to use with memcpy
fbpxlfmt is the output (frame buffer supported) image color format here fbpxlfmt is OMX_COLOR_Format32bitARGB8888 always because the frame buffer has configuration of rgba 8/0 8/0 8/0 8/0 with pixel depth 8 if other configuration frame buffer is employed then appropriate conversion policy should be written
Definition at line 501 of file omx_fbdev_sink_component.c.
References calcStride(), DEB_LEV_ERR, DEB_LEV_SIMPLE_SEQ, DEBUG, OMX_COLOR_Format16bitARGB1555, OMX_COLOR_Format16bitBGR565, OMX_COLOR_Format16bitRGB565, OMX_COLOR_Format24bitBGR888, OMX_COLOR_Format24bitRGB888, OMX_COLOR_Format32bitARGB8888, OMX_COLOR_Format32bitBGRA8888, OMX_COLOR_Format8bitRGB332, OMX_COLOR_FormatYUV411PackedPlanar, OMX_COLOR_FormatYUV411Planar, OMX_COLOR_FormatYUV420PackedPlanar, OMX_COLOR_FormatYUV420Planar, OMX_COLOR_FormatYUV422PackedPlanar, and OMX_COLOR_FormatYUV422Planar.
Referenced by omx_fbdev_sink_component_BufferMgmtCallback(), and omx_ffmpeg_colorconv_component_BufferMgmtCallback().
1.5.1