+++ /dev/null
-/*
- * 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
- #ifndef LIBMJPEG_H
-#define LIBMJPEG_H
-
-
-/* Motion JPEG library */
-
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-
-#include <stdio.h>
-#include <jpeglib.h>
-#include <png.h>
-#include "pthread.h"
-#include <setjmp.h>
-
-#define MAXFIELDS 2
-#define QUICKTIME_MJPA_MARKSIZE 40
-#define QUICKTIME_JPEG_TAG 0x6d6a7067
-#define CODEC_TAG_MJPEG "mjpg"
-#define CODEC_TAG_JPEG "jpeg"
-
-
-struct mjpeg_error_mgr {
- struct jpeg_error_mgr pub; /* "public" fields */
- jmp_buf setjmp_buffer; /* for return to caller */
-};
-
-typedef struct mjpeg_error_mgr* mjpeg_error_ptr;
-
-#ifndef __alpha__
-typedef struct
-{
-} mjpeg_lml_hdr;
-
-typedef struct
-{
-} mjpeg_dc10_hdr;
-#endif
-
-
-// The compressor structure is shared between decompressors and compressors
-typedef struct
-{
- void *mjpeg;
- int instance;
- unsigned char *output_buffer; /* Buffer for MJPEG output */
- long output_size; /* Size of image stored in buffer */
- long output_allocated; /* Allocated size of output buffer */
- struct jpeg_decompress_struct jpeg_decompress;
- struct jpeg_compress_struct jpeg_compress;
- struct mjpeg_error_mgr jpeg_error;
- pthread_t tid; /* ID of thread */
- pthread_mutex_t input_lock, output_lock;
- int done; /* Flag to end */
- int error;
-// Pointer to uncompressed YUV rows
-// [3 planes][downsampled rows][downsampled pixels]
- unsigned char **rows[3];
-/* Temp rows for each MCU */
- unsigned char **mcu_rows[3];
-/* Height of the field */
- int field_h;
- int coded_field_h;
-} mjpeg_compressor;
-
-typedef struct
-{
-// Dimensions of user frame buffer
- int output_w;
- int output_h;
-// Dimensions for encoder frame buffer
- int coded_w, coded_h;
- int fields;
- int quality;
- int use_float;
- int kludge;
- int cpus;
-// Color model of user interface.
- int color_model;
-// Color model of compressed data. Since MJPA streams use 4:2:0
- int jpeg_color_model;
-// To save on colormodel permutations, we flag grayscale separately and
-// just set U and V to 0x80.
- int greyscale;
-// Error in compression process
- int error;
-
- mjpeg_compressor *compressors[MAXFIELDS];
- mjpeg_compressor *decompressors[MAXFIELDS];
-
-// Temp frame for interlacing
-// [3 planes][downsampled rows][downsampled pixels]
- unsigned char *temp_data;
- unsigned char **temp_rows[3];
- unsigned char **row_argument, *y_argument, *u_argument, *v_argument;
-
-// Buffer passed to user
-// This can contain one progressive field or two fields with headers
- unsigned char *output_data;
- long output_size;
- long output_allocated;
-// Offset to field2 in output_data
- long output_field2;
-// Buffer passed from user
- unsigned char *input_data;
- long input_size;
-// Offset to field2 in input_data
- long input_field2;
- int deinterlace;
- int rowspan;
-
-// Workarounds for thread unsafe libraries
- pthread_mutex_t decompress_init;
- int decompress_initialized;
-} mjpeg_t;
-
-
-
-
-
-// Entry points
-mjpeg_t* mjpeg_new(int w,
- int h,
- int fields);
-void mjpeg_delete(mjpeg_t *mjpeg);
-
-void mjpeg_set_quality(mjpeg_t *mjpeg, int quality);
-void mjpeg_set_float(mjpeg_t *mjpeg, int use_float);
-// This is useful when producing realtime NTSC output for a JPEG board.
-void mjpeg_set_deinterlace(mjpeg_t *mjpeg, int value);
-void mjpeg_set_cpus(mjpeg_t *mjpeg, int cpus);
-void mjpeg_set_rowspan(mjpeg_t *mjpeg, int rowspan);
-
-
-int mjpeg_get_fields(mjpeg_t *mjpeg);
-
-int mjpeg_decompress(mjpeg_t *mjpeg,
- unsigned char *buffer,
- long buffer_len,
- long input_field2,
- unsigned char **row_pointers,
- unsigned char *y_plane,
- unsigned char *u_plane,
- unsigned char *v_plane,
- int color_model,
- int cpus);
-
-int mjpeg_compress(mjpeg_t *mjpeg,
- unsigned char **row_pointers,
- unsigned char *y_plane,
- unsigned char *u_plane,
- unsigned char *v_plane,
- int color_model,
- int cpus);
-
-// Get buffer information after compressing
-unsigned char* mjpeg_output_buffer(mjpeg_t *mjpeg);
-// Called by decoder
-long mjpeg_output_field2(mjpeg_t *mjpeg);
-// Called before inserting markers by user
-long mjpeg_output_size(mjpeg_t *mjpeg);
-// Called before inserting markers by user
-long mjpeg_output_allocated(mjpeg_t *mjpeg);
-// Called after inserting markers by user to increase the size
-void mjpeg_set_output_size(mjpeg_t *mjpeg, long output_size);
-
-// Retrieve width and height from a buffer of JPEG data
-void mjpeg_video_size(unsigned char *data, long data_size, int *w, int *h);
-
-
-
-// Calculate marker contents and insert them into a buffer.
-// Reallocates the buffer if it isn't big enough so make sure it's big enough
-// when passing VFrames.
-// field2_offset is set to -1 if the markers already exist or the field offset
-// if markers don't already exist.
-void mjpeg_insert_quicktime_markers(unsigned char **buffer,
- long *buffer_size,
- long *buffer_allocated,
- int fields,
- long *field2_offset);
-void mjpeg_insert_avi_markers(unsigned char **buffer,
- long *buffer_size,
- long *buffer_allocated,
- int fields,
- long *field2_offset);
-
-// Get the second field offset from the markers
-long mjpeg_get_buz_field2(unsigned char *buffer, long buffer_size);
-long mjpeg_get_lml33_field2(unsigned char *buffer, long buffer_size);
-long mjpeg_get_quicktime_field2(unsigned char *buffer, long buffer_size);
-// Field dominance is retrieved for the jpeg decoder. AVI stores field
-// dominance in each field.
-long mjpeg_get_avi_field2(unsigned char *buffer,
- long buffer_size,
- int *field_dominance);
-long mjpeg_get_field2(unsigned char *buffer, long buffer_size);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
projects / goodguy / history.git / blobdiff