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提交 bcbdf8a3 authored 作者: Seven Du's avatar Seven Du 提交者： Michael Jerris
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FS-7500: add switch_core_video code

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src/include/switch_core_video.h 0 → 100644
浏览文件 @ bcbdf8a3
/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Seven Du <dujinfang@gmail.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* switch_core_video.h -- Core Video header
*
*/
/*! \file switch_core_video.h
\brief video includes header
The things powered by libvpx are renamed into the switch_ namespace to provide a cleaner
look to things and helps me to document what parts of video I am using I'd like to take this
opportunity to thank libvpx for all the awesome stuff it does and for making my life much easier.
*/
#ifndef SWITCH_VIDEO_H
#define SWITCH_VIDEO_H
#include "vpx/vpx_image.h"
#include "vpx/vpx_integer.h"
SWITCH_BEGIN_EXTERN_C
#define SWITCH_IMG_FMT_PLANAR VPX_IMG_FMT_PLANAR
#define SWITCH_IMG_FMT_UV_FLIP VPX_IMG_FMT_UV_FLIP
#define SWITCH_IMG_FMT_HAS_ALPHA VPX_IMG_FMT_HAS_ALPHA
#ifndef VPX_IMG_FMT_HIGH /* not available in libvpx 1.3.0 (see commit hash e97aea28) */
#define VPX_IMG_FMT_HIGH 0x800 /**< Image uses 16bit framebuffer */
#endif
#define SWITCH_IMG_FMT_HIGH VPX_IMG_FMT_HIGH
/*!\brief List of supported image formats */
typedef enum switch_img_fmt {
SWITCH_IMG_FMT_NONE,
SWITCH_IMG_FMT_RGB24, /**< 24 bit per pixel packed RGB */
SWITCH_IMG_FMT_RGB32, /**< 32 bit per pixel packed 0RGB */
SWITCH_IMG_FMT_RGB565, /**< 16 bit per pixel, 565 */
SWITCH_IMG_FMT_RGB555, /**< 16 bit per pixel, 555 */
SWITCH_IMG_FMT_UYVY, /**< UYVY packed YUV */
SWITCH_IMG_FMT_YUY2, /**< YUYV packed YUV */
SWITCH_IMG_FMT_YVYU, /**< YVYU packed YUV */
SWITCH_IMG_FMT_BGR24, /**< 24 bit per pixel packed BGR */
SWITCH_IMG_FMT_RGB32_LE, /**< 32 bit packed BGR0 */
SWITCH_IMG_FMT_ARGB, /**< 32 bit packed ARGB, alpha=255 */
SWITCH_IMG_FMT_ARGB_LE, /**< 32 bit packed BGRA, alpha=255 */
SWITCH_IMG_FMT_RGB565_LE, /**< 16 bit per pixel, gggbbbbb rrrrrggg */
SWITCH_IMG_FMT_RGB555_LE, /**< 16 bit per pixel, gggbbbbb 0rrrrrgg */
SWITCH_IMG_FMT_YV12 = SWITCH_IMG_FMT_PLANAR | SWITCH_IMG_FMT_UV_FLIP | 1, /**< planar YVU */
SWITCH_IMG_FMT_I420 = SWITCH_IMG_FMT_PLANAR | 2,
SWITCH_IMG_FMT_VPXYV12 = SWITCH_IMG_FMT_PLANAR | SWITCH_IMG_FMT_UV_FLIP | 3, /** < planar 4:2:0 format with vpx color space */
SWITCH_IMG_FMT_VPXI420 = SWITCH_IMG_FMT_PLANAR | 4,
SWITCH_IMG_FMT_I422 = SWITCH_IMG_FMT_PLANAR | 5,
SWITCH_IMG_FMT_I444 = SWITCH_IMG_FMT_PLANAR | 6,
SWITCH_IMG_FMT_444A = SWITCH_IMG_FMT_PLANAR | SWITCH_IMG_FMT_HAS_ALPHA | 7,
SWITCH_IMG_FMT_I42016 = SWITCH_IMG_FMT_I420 | SWITCH_IMG_FMT_HIGH,
SWITCH_IMG_FMT_I42216 = SWITCH_IMG_FMT_I422 | SWITCH_IMG_FMT_HIGH,
SWITCH_IMG_FMT_I44416 = SWITCH_IMG_FMT_I444 | SWITCH_IMG_FMT_HIGH
} switch_img_fmt_t; /**< alias for enum vpx_img_fmt */
/**\brief Image Descriptor */
struct switch_image {
switch_img_fmt_t fmt; /**< Image Format */
/* Image storage dimensions */
unsigned int w; /**< Stored image width */
unsigned int h; /**< Stored image height */
unsigned int bit_depth; /**< Stored image bit-depth */
/* Image display dimensions */
unsigned int d_w; /**< Displayed image width */
unsigned int d_h; /**< Displayed image height */
/* Chroma subsampling info */
unsigned int x_chroma_shift; /**< subsampling order, X */
unsigned int y_chroma_shift; /**< subsampling order, Y */
/* Image data pointers. */
#define SWITCH_PLANE_PACKED VPX_PLANE_PACKED
#define SWITCH_PLANE_Y VPX_PLANE_Y
#define SWITCH_PLANE_U VPX_PLANE_U
#define SWITCH_PLANE_V VPX_PLANE_V
#define SWITCH_PLANE_ALPHA VPX_PLANE_ALPHA
unsigned char *planes[4]; /**< pointer to the top left pixel for each plane */
int stride[4]; /**< stride between rows for each plane */
int bps; /**< bits per sample (for packed formats) */
/* The following member may be set by the application to associate data
* with this image.
*/
void *user_priv; /**< may be set by the application to associate data
* with this image. */
/* The following members should be treated as private. */
unsigned char *img_data; /**< private */
int img_data_owner; /**< private */
int self_allocd; /**< private */
void *fb_priv; /**< Frame buffer data associated with the image. */
};
/**\brief Representation of a rectangle on a surface */
typedef struct switch_image_rect {
unsigned int x; /**< leftmost column */
unsigned int y; /**< topmost row */
unsigned int w; /**< width */
unsigned int h; /**< height */
} switch_image_rect_t;
/*!\brief Open a descriptor, allocating storage for the underlying image
*
* Returns a descriptor for storing an image of the given format. The
* storage for the descriptor is allocated on the heap.
*
* \param[in] img Pointer to storage for descriptor. If this parameter
* is NULL, the storage for the descriptor will be
* allocated on the heap.
* \param[in] fmt Format for the image
* \param[in] d_w Width of the image
* \param[in] d_h Height of the image
* \param[in] align Alignment, in bytes, of the image buffer and
* each row in the image(stride).
*
* \return Returns a pointer to the initialized image descriptor. If the img
* parameter is non-null, the value of the img parameter will be
* returned.
*/
SWITCH_DECLARE(switch_image_t *)switch_img_alloc(switch_image_t *img,
switch_img_fmt_t fmt,
unsigned int d_w,
unsigned int d_h,
unsigned int align);
/*!\brief Open a descriptor, using existing storage for the underlying image
*
* Returns a descriptor for storing an image of the given format. The
* storage for descriptor has been allocated elsewhere, and a descriptor is
* desired to "wrap" that storage.
*
* \param[in] img Pointer to storage for descriptor. If this parameter
* is NULL, the storage for the descriptor will be
* allocated on the heap.
* \param[in] fmt Format for the image
* \param[in] d_w Width of the image
* \param[in] d_h Height of the image
* \param[in] align Alignment, in bytes, of each row in the image.
* \param[in] img_data Storage to use for the image
*
* \return Returns a pointer to the initialized image descriptor. If the img
* parameter is non-null, the value of the img parameter will be
* returned.
*/
SWITCH_DECLARE(switch_image_t *)switch_img_wrap(switch_image_t *img,
switch_img_fmt_t fmt,
unsigned int d_w,
unsigned int d_h,
unsigned int align,
unsigned char *img_data);
/*!\brief Set the rectangle identifying the displayed portion of the image
*
* Updates the displayed rectangle (aka viewport) on the image surface to
* match the specified coordinates and size.
*
* \param[in] img Image descriptor
* \param[in] x leftmost column
* \param[in] y topmost row
* \param[in] w width
* \param[in] h height
*
* \return 0 if the requested rectangle is valid, nonzero otherwise.
*/
SWITCH_DECLARE(int) switch_img_set_rect(switch_image_t *img,
unsigned int x,
unsigned int y,
unsigned int w,
unsigned int h);
/*!\brief Flip the image vertically (top for bottom)
*
* Adjusts the image descriptor's pointers and strides to make the image
* be referenced upside-down.
*
* \param[in] img Image descriptor
*/
SWITCH_DECLARE(void) switch_img_flip(switch_image_t *img);
/*!\brief Close an image descriptor
*
* Frees all allocated storage associated with an image descriptor.
*
* \param[in] img Image descriptor
*/
SWITCH_DECLARE(void) switch_img_free(switch_image_t *img);
/** @} */
SWITCH_END_EXTERN_C
#endif
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
*/
src/switch_core_video.c 0 → 100644
浏览文件 @ bcbdf8a3
/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Seven Du <dujinfang@gmail.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* switch_core_video.c -- Core Video
*
*/
#include <switch.h>
SWITCH_DECLARE(switch_image_t *)switch_img_alloc(switch_image_t *img,
switch_img_fmt_t fmt,
unsigned int d_w,
unsigned int d_h,
unsigned int align)
{
return (switch_image_t *)vpx_img_alloc((vpx_image_t *)img, (vpx_img_fmt_t)fmt, d_w, d_h, align);
}
SWITCH_DECLARE(switch_image_t *)switch_img_wrap(switch_image_t *img,
switch_img_fmt_t fmt,
unsigned int d_w,
unsigned int d_h,
unsigned int align,
unsigned char *img_data)
{
return (switch_image_t *)vpx_img_wrap((vpx_image_t *)img, (vpx_img_fmt_t)fmt, d_w, d_h, align, img_data);
}
SWITCH_DECLARE(int) switch_img_set_rect(switch_image_t *img,
unsigned int x,
unsigned int y,
unsigned int w,
unsigned int h)
{
return vpx_img_set_rect((vpx_image_t *)img, x, y, w, h);
}
SWITCH_DECLARE(void) switch_img_flip(switch_image_t *img)
{
vpx_img_flip((vpx_image_t *)img);
}
SWITCH_DECLARE(void) switch_img_free(switch_image_t *img)
{
vpx_img_free((vpx_image_t *)img);
}
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
*/
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