1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) STMicroelectronics SA 2013 4*4882a593Smuzhiyun * Author: Hugues Fruchet <hugues.fruchet@st.com> for STMicroelectronics. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef DELTA_MJPEG_H 8*4882a593Smuzhiyun #define DELTA_MJPEG_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include "delta.h" 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun struct mjpeg_component { 13*4882a593Smuzhiyun unsigned int id;/* 1=Y, 2=Cb, 3=Cr, 4=L, 5=Q */ 14*4882a593Smuzhiyun unsigned int h_sampling_factor; 15*4882a593Smuzhiyun unsigned int v_sampling_factor; 16*4882a593Smuzhiyun unsigned int quant_table_index; 17*4882a593Smuzhiyun }; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define MJPEG_MAX_COMPONENTS 5 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct mjpeg_header { 22*4882a593Smuzhiyun unsigned int length; 23*4882a593Smuzhiyun unsigned int sample_precision; 24*4882a593Smuzhiyun unsigned int frame_width; 25*4882a593Smuzhiyun unsigned int frame_height; 26*4882a593Smuzhiyun unsigned int nb_of_components; 27*4882a593Smuzhiyun struct mjpeg_component components[MJPEG_MAX_COMPONENTS]; 28*4882a593Smuzhiyun }; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun int delta_mjpeg_read_header(struct delta_ctx *pctx, 31*4882a593Smuzhiyun unsigned char *data, unsigned int size, 32*4882a593Smuzhiyun struct mjpeg_header *header, 33*4882a593Smuzhiyun unsigned int *data_offset); 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #endif /* DELTA_MJPEG_H */ 36