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Diffstat (limited to 'src/libxinevdec/cyuv.c')
-rw-r--r--src/libxinevdec/cyuv.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/src/libxinevdec/cyuv.c b/src/libxinevdec/cyuv.c
deleted file mode 100644
index b8393bc97..000000000
--- a/src/libxinevdec/cyuv.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * Copyright (C) 2000-2003 the xine project
- *
- * This file is part of xine, a free video player.
- *
- * xine is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * xine 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- * $Id: cyuv.c,v 1.26 2004/02/09 22:04:11 jstembridge Exp $
- */
-
-/* And this is the header that came with the CYUV decoder: */
-/* ------------------------------------------------------------------------
- * Creative YUV Video Decoder
- *
- * Dr. Tim Ferguson, 2001.
- * For more details on the algorithm:
- * http://www.csse.monash.edu.au/~timf/videocodec.html
- *
- * This is a very simple predictive coder. A video frame is coded in YUV411
- * format. The first pixel of each scanline is coded using the upper four
- * bits of its absolute value. Subsequent pixels for the scanline are coded
- * using the difference between the last pixel and the current pixel (DPCM).
- * The DPCM values are coded using a 16 entry table found at the start of the
- * frame. Thus four bits per component are used and are as follows:
- * UY VY YY UY VY YY UY VY...
- * This code assumes the frame width will be a multiple of four pixels. This
- * should probably be fixed.
- *
- * You may freely use this source code. I only ask that you reference its
- * source in your projects documentation:
- * Tim Ferguson: http://www.csse.monash.edu.au/~timf/
- * ------------------------------------------------------------------------ */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "xine_internal.h"
-#include "video_out.h"
-#include "buffer.h"
-#include "xineutils.h"
-
-#define VIDEOBUFSIZE 128*1024
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} cyuv_class_t;
-
-typedef struct cyuv_decoder_s {
- video_decoder_t video_decoder;
-
- xine_stream_t *stream;
- cyuv_class_t *class;
-
- int video_step;
- int skipframes;
- unsigned char *buf;
- int bufsize;
- int size;
- int width;
- int height;
- double ratio;
-} cyuv_decoder_t;
-
-/* ------------------------------------------------------------------------
- * This function decodes a buffer containing a CYUV encoded frame.
- *
- * buf - the input buffer to be decoded
- * size - the size of the input buffer
- * frame - the output frame buffer (YUY2 format)
- * width - the width of the output frame
- * height - the height of the output frame
- * bit_per_pixel - ignored for now: may be used later for conversions.
- */
-static void cyuv_decode(unsigned char *buf, int size, unsigned char *frame,
- int width, int height, int bit_per_pixel) {
-
- int i, xpos, ypos, cur_Y = 0, cur_U = 0, cur_V = 0;
- char *delta_y_tbl, *delta_c_tbl, *ptr;
-
- delta_y_tbl = buf + 16;
- delta_c_tbl = buf + 32;
- ptr = buf + (16 * 3);
-
- for(ypos = 0; ypos < height; ypos++) {
- for(xpos = 0; xpos < width; xpos += 4) {
- /* first pixels in scanline */
- if(xpos == 0) {
- cur_U = *(ptr++);
- cur_Y = (cur_U & 0x0f) << 4;
- cur_U = cur_U & 0xf0;
- *frame++ = cur_Y;
- *frame++ = cur_U;
-
- cur_V = *(ptr++);
- cur_Y = (cur_Y + delta_y_tbl[cur_V & 0x0f]) & 0xff;
- cur_V = cur_V & 0xf0;
- *frame++ = cur_Y;
- *frame++ = cur_V;
- }
- /* subsequent pixels in scanline */
- else {
- i = *(ptr++);
- cur_U = (cur_U + delta_c_tbl[i >> 4]) & 0xff;
- cur_Y = (cur_Y + delta_y_tbl[i & 0x0f]) & 0xff;
- *frame++ = cur_Y;
- *frame++ = cur_U;
-
- i = *(ptr++);
- cur_V = (cur_V + delta_c_tbl[i >> 4]) & 0xff;
- cur_Y = (cur_Y + delta_y_tbl[i & 0x0f]) & 0xff;
- *frame++ = cur_Y;
- *frame++ = cur_V;
- }
-
- i = *(ptr++);
- cur_Y = (cur_Y + delta_y_tbl[i & 0x0f]) & 0xff;
- *frame++ = cur_Y;
- *frame++ = cur_U;
-
- cur_Y = (cur_Y + delta_y_tbl[i >> 4]) & 0xff;
- *frame++ = cur_Y;
- *frame++ = cur_V;
- }
- }
-}
-
-static void cyuv_decode_data (video_decoder_t *this_gen,
- buf_element_t *buf) {
-
- cyuv_decoder_t *this = (cyuv_decoder_t *) this_gen;
- vo_frame_t *img; /* video out frame */
-
- if (buf->decoder_flags & (BUF_FLAG_PREVIEW | BUF_FLAG_SPECIAL))
- return;
-
- if (buf->decoder_flags & BUF_FLAG_STDHEADER) { /* need to initialize */
- this->stream->video_out->open (this->stream->video_out, this->stream);
-
- if(this->buf)
- free(this->buf);
-
- this->buf = malloc(VIDEOBUFSIZE);
- this->bufsize = VIDEOBUFSIZE;
- this->size = 0;
- this->width = *(unsigned int *)&buf->content[4];
- this->height = *(unsigned int *)&buf->content[8];
- this->ratio = (double)this->width/(double)this->height;
- this->skipframes = 0;
-
- _x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Creative YUV");
-
- return;
- }
-
- if( this->size + buf->size > this->bufsize ) {
- this->bufsize = this->size + 2 * buf->size;
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "CYUV: increasing source buffer to %d to avoid overflow.\n", this->bufsize);
- this->buf = realloc( this->buf, this->bufsize );
- }
-
- xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
- this->size += buf->size;
-
- if (buf->decoder_flags & BUF_FLAG_FRAMERATE) {
- this->video_step = buf->decoder_info[0];
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, this->video_step);
- }
-
- if (buf->decoder_flags & BUF_FLAG_FRAME_END) { /* time to decode a frame */
- img = this->stream->video_out->get_frame (this->stream->video_out,
- this->width, this->height, this->ratio, XINE_IMGFMT_YUY2,
- VO_BOTH_FIELDS);
-
- img->pts = buf->pts;
- img->duration = this->video_step;
-
- cyuv_decode(this->buf, this->size, img->base[0],
- this->width, this->height, 0);
-
- this->skipframes = img->draw(img, this->stream);
- if( this->skipframes < 0 )
- this->skipframes = 0;
- img->free(img);
-
- this->size = 0;
- }
-}
-
-static void cyuv_flush (video_decoder_t *this_gen) {
-}
-
-static void cyuv_reset (video_decoder_t *this_gen) {
-}
-
-static void cyuv_discontinuity (video_decoder_t *this_gen) {
-}
-
-static void cyuv_dispose (video_decoder_t *this_gen) {
-
- cyuv_decoder_t *this = (cyuv_decoder_t *) this_gen;
-
- this->stream->video_out->close(this->stream->video_out, this->stream);
-
- free (this_gen);
-}
-
-static video_decoder_t *open_plugin (video_decoder_class_t *class_gen, xine_stream_t *stream) {
-
- cyuv_decoder_t *this ;
-
- this = (cyuv_decoder_t *) xine_xmalloc (sizeof (cyuv_decoder_t));
-
- this->video_decoder.decode_data = cyuv_decode_data;
- this->video_decoder.flush = cyuv_flush;
- this->video_decoder.reset = cyuv_reset;
- this->video_decoder.discontinuity = cyuv_discontinuity;
- this->video_decoder.dispose = cyuv_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (cyuv_class_t *) class_gen;
-
- this->buf = NULL;
-
- return &this->video_decoder;
-}
-
-static char *get_identifier (video_decoder_class_t *this) {
- return "CYUV";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Creative YUV (CYUV) video decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- cyuv_class_t *this;
-
- this = (cyuv_class_t *) xine_xmalloc (sizeof (cyuv_class_t));
-
- this->decoder_class.open_plugin = open_plugin;
- this->decoder_class.get_identifier = get_identifier;
- this->decoder_class.get_description = get_description;
- this->decoder_class.dispose = dispose_class;
-
- return this;
-}
-
-/*
- * exported plugin catalog entry
- */
-
-static uint32_t video_types[] = {
- BUF_VIDEO_CYUV,
- 0
- };
-
-static decoder_info_t dec_info_video = {
- video_types, /* supported types */
- 1 /* priority */
-};
-
-plugin_info_t xine_plugin_info[] = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_VIDEO_DECODER, 18, "cyuv", XINE_VERSION_CODE, &dec_info_video, init_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 11:05:32 +0000