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Diffstat (limited to 'src/libxinevdec/roqvideo.c')
-rw-r--r--src/libxinevdec/roqvideo.c578
1 files changed, 0 insertions, 578 deletions
diff --git a/src/libxinevdec/roqvideo.c b/src/libxinevdec/roqvideo.c
deleted file mode 100644
index 7a316bfd6..000000000
--- a/src/libxinevdec/roqvideo.c
+++ /dev/null
@@ -1,578 +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: roqvideo.c,v 1.28 2004/02/09 22:04:11 jstembridge Exp $
- */
-
-/* And this is the header that came with the RoQ video decoder: */
-/* ------------------------------------------------------------------------
- * Id Software's RoQ video file format decoder
- *
- * Dr. Tim Ferguson, 2001.
- * For more details on the algorithm:
- * http://www.csse.monash.edu.au/~timf/videocodec.html
- *
- * This is a simple decoder for the Id Software RoQ video format. In
- * this format, audio samples are DPCM coded and the video frames are
- * coded using motion blocks and vector quantisation.
- *
- * Note: All information on the RoQ file format has been obtained through
- * pure reverse engineering. This was achieved by giving known input
- * audio and video frames to the roq.exe encoder and analysing the
- * resulting output text and RoQ file. No decompiling of the Quake III
- * Arena game was required.
- *
- * 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
-
-#define RoQ_INFO 0x1001
-#define RoQ_QUAD_CODEBOOK 0x1002
-#define RoQ_QUAD_VQ 0x1011
-#define RoQ_SOUND_MONO 0x1020
-#define RoQ_SOUND_STEREO 0x1021
-
-#define RoQ_ID_MOT 0x00
-#define RoQ_ID_FCC 0x01
-#define RoQ_ID_SLD 0x02
-#define RoQ_ID_CCC 0x03
-
-#define get_byte(in_buffer) *(in_buffer++)
-#define get_word(in_buffer) ((unsigned short)(in_buffer += 2, \
- (in_buffer[-1] << 8 | in_buffer[-2])))
-#define get_long(in_buffer) ((unsigned long)(in_buffer += 4, \
- (in_buffer[-1] << 24 | in_buffer[-2] << 16 | in_buffer[-3] << 8 | in_buffer[-4])))
-
-typedef struct {
- unsigned char y0, y1, y2, y3, u, v;
-} roq_cell;
-
-typedef struct {
- int idx[4];
-} roq_qcell;
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} roqvideo_class_t;
-
-typedef struct roq_decoder_s {
- video_decoder_t video_decoder;
-
- roqvideo_class_t *class;
- xine_stream_t *stream;
-
-
- int video_step;
- int skipframes;
- unsigned char *buf;
- int bufsize;
- int size;
- int width;
- int height;
- double ratio;
-
- roq_cell cells[256];
- roq_qcell qcells[256];
- long roq_start, aud_pos, vid_pos;
- long *frame_offset;
- unsigned long num_frames, num_audio_bytes;
- unsigned char *y[2], *u[2], *v[2];
- int y_size;
- int c_size;
-
- unsigned char *cur_y, *cur_u, *cur_v;
- unsigned char *prev_y, *prev_u, *prev_v;
-
- /* this is either 0 or 1 indicating the cur_y points to y[0] or y[1],
- * same for u and v */
- int current_planes;
-
-} roqvideo_decoder_t;
-
-/**************************************************************************
- * RoQ video specific decode functions
- *************************************************************************/
-
-static void apply_vector_2x2(roqvideo_decoder_t *ri, int x, int y, roq_cell *cell) {
- unsigned char *yptr;
-
- yptr = ri->cur_y + (y * ri->width) + x;
- *yptr++ = cell->y0;
- *yptr++ = cell->y1;
- yptr += (ri->width - 2);
- *yptr++ = cell->y2;
- *yptr++ = cell->y3;
- ri->cur_u[(y/2) * (ri->width/2) + x/2] = cell->u;
- ri->cur_v[(y/2) * (ri->width/2) + x/2] = cell->v;
-}
-
-static void apply_vector_4x4(roqvideo_decoder_t *ri, int x, int y, roq_cell *cell) {
- unsigned long row_inc, c_row_inc;
- register unsigned char y0, y1, u, v;
- unsigned char *yptr, *uptr, *vptr;
-
- yptr = ri->cur_y + (y * ri->width) + x;
- uptr = ri->cur_u + (y/2) * (ri->width/2) + x/2;
- vptr = ri->cur_v + (y/2) * (ri->width/2) + x/2;
-
- row_inc = ri->width - 4;
- c_row_inc = (ri->width/2) - 2;
- *yptr++ = y0 = cell->y0; *uptr++ = u = cell->u; *vptr++ = v = cell->v;
- *yptr++ = y0;
- *yptr++ = y1 = cell->y1; *uptr++ = u; *vptr++ = v;
- *yptr++ = y1;
-
- yptr += row_inc;
-
- *yptr++ = y0;
- *yptr++ = y0;
- *yptr++ = y1;
- *yptr++ = y1;
-
- yptr += row_inc; uptr += c_row_inc; vptr += c_row_inc;
-
- *yptr++ = y0 = cell->y2; *uptr++ = u; *vptr++ = v;
- *yptr++ = y0;
- *yptr++ = y1 = cell->y3; *uptr++ = u; *vptr++ = v;
- *yptr++ = y1;
-
- yptr += row_inc;
-
- *yptr++ = y0;
- *yptr++ = y0;
- *yptr++ = y1;
- *yptr++ = y1;
-}
-
-static void apply_motion_4x4(roqvideo_decoder_t *ri, int x, int y, unsigned char mv,
- char mean_x, char mean_y)
-{
- int i, mx, my;
- unsigned char *pa, *pb;
-
- mx = x + 8 - (mv >> 4) - mean_x;
- my = y + 8 - (mv & 0xf) - mean_y;
-
- pa = ri->cur_y + (y * ri->width) + x;
- pb = ri->prev_y + (my * ri->width) + mx;
- for(i = 0; i < 4; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- pa += ri->width;
- pb += ri->width;
- }
-
- pa = ri->cur_u + (y/2) * (ri->width/2) + x/2;
- pb = ri->prev_u + (my/2) * (ri->width/2) + (mx + 1)/2;
- for(i = 0; i < 2; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa += ri->width/2;
- pb += ri->width/2;
- }
-
- pa = ri->cur_v + (y/2) * (ri->width/2) + x/2;
- pb = ri->prev_v + (my/2) * (ri->width/2) + (mx + 1)/2;
- for(i = 0; i < 2; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa += ri->width/2;
- pb += ri->width/2;
- }
-}
-
-static void apply_motion_8x8(roqvideo_decoder_t *ri, int x, int y,
- unsigned char mv, char mean_x, char mean_y) {
-
- int mx, my, i;
- unsigned char *pa, *pb;
-
- mx = x + 8 - (mv >> 4) - mean_x;
- my = y + 8 - (mv & 0xf) - mean_y;
-
- pa = ri->cur_y + (y * ri->width) + x;
- pb = ri->prev_y + (my * ri->width) + mx;
- for(i = 0; i < 8; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- pa[4] = pb[4];
- pa[5] = pb[5];
- pa[6] = pb[6];
- pa[7] = pb[7];
- pa += ri->width;
- pb += ri->width;
- }
-
- pa = ri->cur_u + (y/2) * (ri->width/2) + x/2;
- pb = ri->prev_u + (my/2) * (ri->width/2) + (mx + 1)/2;
- for(i = 0; i < 4; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- pa += ri->width/2;
- pb += ri->width/2;
- }
-
- pa = ri->cur_v + (y/2) * (ri->width/2) + x/2;
- pb = ri->prev_v + (my/2) * (ri->width/2) + (mx + 1)/2;
- for(i = 0; i < 4; i++) {
- pa[0] = pb[0];
- pa[1] = pb[1];
- pa[2] = pb[2];
- pa[3] = pb[3];
- pa += ri->width/2;
- pb += ri->width/2;
- }
-}
-
-static void roqvideo_decode_frame(roqvideo_decoder_t *ri) {
- unsigned int chunk_id = 0, chunk_arg = 0;
- unsigned long chunk_size = 0;
- int i, j, k, nv1, nv2, vqflg = 0, vqflg_pos = -1;
- int vqid, bpos, xpos, ypos, xp, yp, x, y;
- int frame_stats[2][4] = {{0},{0}};
- roq_qcell *qcell;
- unsigned char *buf = ri->buf;
- unsigned char *buf_end = ri->buf + ri->size;
-
- while (buf < buf_end) {
- chunk_id = get_word(buf);
- chunk_size = get_long(buf);
- chunk_arg = get_word(buf);
-
- if(chunk_id == RoQ_QUAD_VQ)
- break;
- if(chunk_id == RoQ_QUAD_CODEBOOK) {
- if((nv1 = chunk_arg >> 8) == 0)
- nv1 = 256;
- if((nv2 = chunk_arg & 0xff) == 0 && nv1 * 6 < chunk_size)
- nv2 = 256;
- for(i = 0; i < nv1; i++) {
- ri->cells[i].y0 = get_byte(buf);
- ri->cells[i].y1 = get_byte(buf);
- ri->cells[i].y2 = get_byte(buf);
- ri->cells[i].y3 = get_byte(buf);
- ri->cells[i].u = get_byte(buf);
- ri->cells[i].v = get_byte(buf);
- }
- for(i = 0; i < nv2; i++)
- for(j = 0; j < 4; j++)
- ri->qcells[i].idx[j] = get_byte(buf);
- }
- }
-
- bpos = xpos = ypos = 0;
- while(bpos < chunk_size) {
- for (yp = ypos; yp < ypos + 16; yp += 8)
- for (xp = xpos; xp < xpos + 16; xp += 8) {
- if (vqflg_pos < 0) {
- vqflg = buf[bpos++]; vqflg |= (buf[bpos++] << 8);
- vqflg_pos = 7;
- }
- vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;
- frame_stats[0][vqid]++;
- vqflg_pos--;
-
- switch(vqid) {
- case RoQ_ID_MOT:
- apply_motion_8x8(ri, xp, yp, 0, 8, 8);
- break;
- case RoQ_ID_FCC:
- apply_motion_8x8(ri, xp, yp, buf[bpos++], chunk_arg >> 8,
- chunk_arg & 0xff);
- break;
- case RoQ_ID_SLD:
- qcell = ri->qcells + buf[bpos++];
- apply_vector_4x4(ri, xp, yp, ri->cells + qcell->idx[0]);
- apply_vector_4x4(ri, xp+4, yp, ri->cells + qcell->idx[1]);
- apply_vector_4x4(ri, xp, yp+4, ri->cells + qcell->idx[2]);
- apply_vector_4x4(ri, xp+4, yp+4, ri->cells + qcell->idx[3]);
- break;
- case RoQ_ID_CCC:
- for (k = 0; k < 4; k++) {
- x = xp; y = yp;
- if(k & 0x01) x += 4;
- if(k & 0x02) y += 4;
-
- if (vqflg_pos < 0) {
- vqflg = buf[bpos++];
- vqflg |= (buf[bpos++] << 8);
- vqflg_pos = 7;
- }
- vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;
- frame_stats[1][vqid]++;
- vqflg_pos--;
- switch(vqid) {
- case RoQ_ID_MOT:
- apply_motion_4x4(ri, x, y, 0, 8, 8);
- break;
- case RoQ_ID_FCC:
- apply_motion_4x4(ri, x, y, buf[bpos++], chunk_arg >> 8,
- chunk_arg & 0xff);
- break;
- case RoQ_ID_SLD:
- qcell = ri->qcells + buf[bpos++];
- apply_vector_2x2(ri, x, y, ri->cells + qcell->idx[0]);
- apply_vector_2x2(ri, x+2, y, ri->cells + qcell->idx[1]);
- apply_vector_2x2(ri, x, y+2, ri->cells + qcell->idx[2]);
- apply_vector_2x2(ri, x+2, y+2, ri->cells + qcell->idx[3]);
- break;
- case RoQ_ID_CCC:
- apply_vector_2x2(ri, x, y, ri->cells + buf[bpos]);
- apply_vector_2x2(ri, x+2, y, ri->cells + buf[bpos+1]);
- apply_vector_2x2(ri, x, y+2, ri->cells + buf[bpos+2]);
- apply_vector_2x2(ri, x+2, y+2, ri->cells + buf[bpos+3]);
- bpos += 4;
- break;
- }
- }
- break;
- default:
- xprintf(ri->stream->xine, XINE_VERBOSITY_DEBUG, "Unknown vq code: %d\n", vqid);
- }
- }
-
- xpos += 16;
- if (xpos >= ri->width) {
- xpos -= ri->width;
- ypos += 16;
- }
- if(ypos >= ri->height)
- break;
- }
-}
-
-/**************************************************************************
- * xine video plugin functions
- *************************************************************************/
-
-static void roqvideo_decode_data (video_decoder_t *this_gen,
- buf_element_t *buf) {
-
- roqvideo_decoder_t *this = (roqvideo_decoder_t *) this_gen;
- vo_frame_t *img; /* video out frame */
-
- if (buf->decoder_flags & BUF_FLAG_PREVIEW)
- return;
-
- if (buf->decoder_flags & BUF_FLAG_STDHEADER) { /* need to initialize */
- xine_bmiheader *bih = (xine_bmiheader *)buf->content;
-
- this->stream->video_out->open (this->stream->video_out, this->stream);
-
- if(this->buf)
- free(this->buf);
-
- this->buf = xine_xmalloc(VIDEOBUFSIZE);
- this->bufsize = VIDEOBUFSIZE;
- this->size = 0;
- this->width = bih->biWidth;
- this->height = bih->biHeight;
- this->ratio = (double)this->width/(double)this->height;
- this->skipframes = 0;
- this->current_planes = 0;
-
- this->y_size = this->width * this->height;
- this->c_size = (this->width * this->height) / 4;
-
- this->y[0] = xine_xmalloc(this->y_size);
- this->y[1] = xine_xmalloc(this->y_size);
- memset(this->y[0], 0x00, this->y_size);
- memset(this->y[1], 0x00, this->y_size);
-
- this->u[0] = xine_xmalloc(this->c_size);
- this->u[1] = xine_xmalloc(this->c_size);
- memset(this->u[0], 0x80, this->c_size);
- memset(this->u[1], 0x80, this->c_size);
-
- this->v[0] = xine_xmalloc(this->c_size);
- this->v[1] = xine_xmalloc(this->c_size);
- memset(this->v[0], 0x80, this->c_size);
- memset(this->v[1], 0x80, this->c_size);
-
- /* load the stream/meta info */
- _x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "RoQ VQ Video");
-
- return;
- }
-
- if( this->size + buf->size > this->bufsize ) {
- this->bufsize = this->size + 2 * buf->size;
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "RoQ: 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_YV12,
- VO_BOTH_FIELDS);
-
- img->pts = buf->pts;
- img->duration = this->video_step;
-
- if (this->current_planes == 0) {
- this->cur_y = this->y[0];
- this->cur_u = this->u[0];
- this->cur_v = this->v[0];
- this->prev_y = this->y[1];
- this->prev_u = this->u[1];
- this->prev_v = this->v[1];
- this->current_planes = 1;
- } else {
- this->cur_y = this->y[1];
- this->cur_u = this->u[1];
- this->cur_v = this->v[1];
- this->prev_y = this->y[0];
- this->prev_u = this->u[0];
- this->prev_v = this->v[0];
- this->current_planes = 0;
- }
- roqvideo_decode_frame(this);
- xine_fast_memcpy(img->base[0], this->cur_y, this->y_size);
- xine_fast_memcpy(img->base[1], this->cur_u, this->c_size);
- xine_fast_memcpy(img->base[2], this->cur_v, this->c_size);
-
- this->skipframes = img->draw(img, this->stream);
- if( this->skipframes < 0 )
- this->skipframes = 0;
- img->free(img);
-
- this->size = 0;
- }
-}
-
-static void roqvideo_flush (video_decoder_t *this_gen) {
-}
-
-static void roqvideo_reset (video_decoder_t *this_gen) {
-}
-
-static void roqvideo_discontinuity (video_decoder_t *this_gen) {
-}
-
-static void roqvideo_dispose (video_decoder_t *this_gen) {
-
- roqvideo_decoder_t *this = (roqvideo_decoder_t *) this_gen;
-
- this->stream->video_out->close(this->stream->video_out, this->stream);
-
- free(this->y[0]);
- free(this->y[1]);
- free(this->u[0]);
- free(this->u[1]);
- free(this->v[0]);
- free(this->v[1]);
-
- free (this_gen);
-}
-
-static video_decoder_t *open_plugin (video_decoder_class_t *class_gen, xine_stream_t *stream) {
-
- roqvideo_decoder_t *this ;
-
- this = (roqvideo_decoder_t *) xine_xmalloc (sizeof (roqvideo_decoder_t));
-
- this->video_decoder.decode_data = roqvideo_decode_data;
- this->video_decoder.flush = roqvideo_flush;
- this->video_decoder.reset = roqvideo_reset;
- this->video_decoder.discontinuity = roqvideo_discontinuity;
- this->video_decoder.dispose = roqvideo_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (roqvideo_class_t *) class_gen;
-
- this->buf = NULL;
-
- return &this->video_decoder;
-}
-
-static char *get_identifier (video_decoder_class_t *this) {
- return "RoQ Video";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Id RoQ video decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- roqvideo_class_t *this;
-
- this = (roqvideo_class_t *) xine_xmalloc (sizeof (roqvideo_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_ROQ,
- 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, "roq", 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 14:26:39 +0000