summaryrefslogtreecommitdiff
path: root/src/libxinevdec/qtrpza.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libxinevdec/qtrpza.c')
-rw-r--r--src/libxinevdec/qtrpza.c465
1 files changed, 0 insertions, 465 deletions
diff --git a/src/libxinevdec/qtrpza.c b/src/libxinevdec/qtrpza.c
deleted file mode 100644
index f27593f5e..000000000
--- a/src/libxinevdec/qtrpza.c
+++ /dev/null
@@ -1,465 +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
- *
- * QT RPZA Video Decoder by Roberto Togni <rtogni@bresciaonline.it>
- * For more information about the RPZA format, visit:
- * http://www.pcisys.net/~melanson/codecs/
- *
- * $Id: qtrpza.c,v 1.24 2004/02/09 22:04:11 jstembridge Exp $
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "buffer.h"
-#include "xine_internal.h"
-#include "video_out.h"
-#include "xineutils.h"
-#include "bswap.h"
-
-#define VIDEOBUFSIZE 128*1024
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} qtrpza_class_t;
-
-typedef struct qtrpza_decoder_s {
- video_decoder_t video_decoder; /* parent video decoder structure */
-
- qtrpza_class_t *class;
- xine_stream_t *stream;
-
- /* these are traditional variables in a video decoder object */
- uint64_t video_step; /* frame duration in pts units */
- int decoder_ok; /* current decoder status */
- int skipframes;
-
- unsigned char *buf; /* the accumulated buffer data */
- int bufsize; /* the maximum size of buf */
- int size; /* the current size of buf */
-
- int width; /* the width of a video frame */
- int height; /* the height of a video frame */
- double ratio; /* the width to height ratio */
-
- yuv_planes_t yuv_planes;
-
-} qtrpza_decoder_t;
-
-/**************************************************************************
- * RPZA specific decode functions
- *************************************************************************/
-
-#define ADVANCE_BLOCK() \
-{ \
- pixel_ptr += 4; \
- if (pixel_ptr >= this->width) \
- { \
- pixel_ptr = 0; \
- row_ptr += this->width * 4; \
- } \
- total_blocks--; \
- if (total_blocks < 0) \
- { \
- printf(_("warning: block counter just went negative (this should not happen)\n")); \
- return; \
- } \
-}
-
-#define COLOR_FIX(col_out, col_in) (col_out) = ((col_in) << 3) | ((col_in) >> 2)
-
-/* r, g, and b are defined in the function from which this is called */
-#define COLOR_TO_YUV(y_val, u_val, v_val, color) \
-{ \
- unsigned short tmp; \
- tmp = (color >> 10) & 0x1f; \
- COLOR_FIX (r, tmp); \
- tmp = (color >> 5) & 0x1f; \
- COLOR_FIX (g, tmp); \
- tmp = color & 0x1f; \
- COLOR_FIX (b, tmp); \
- y_val = COMPUTE_Y(r, g, b); \
- u_val = COMPUTE_U(r, g, b); \
- v_val = COMPUTE_V(r, g, b); \
-}
-
-static void decode_qtrpza(qtrpza_decoder_t *this) {
-
- int i;
- int stream_ptr = 0;
- int chunk_size;
- unsigned char opcode;
- int n_blocks;
- unsigned short colorA = 0, colorB;
- unsigned char r, g, b;
- unsigned char y, u, v;
- unsigned char rgb4[4][3];
- unsigned char yuv4[4][3];
- unsigned char index, idx;
-
- int row_ptr = 0;
- int pixel_ptr = 0;
- int pixel_x, pixel_y;
- int row_inc = this->width - 4;
- int block_ptr;
- int total_blocks;
- unsigned short ta, tb, tt;
-
- /* First byte is always 0xe1. Warn if it's different */
- if ((unsigned char)this->buf[stream_ptr] != 0xe1)
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "First chunk byte is 0x%02x instead of 0x1e\n",
- (unsigned char)this->buf[stream_ptr]);
-
- /* Get chunk size, ingnoring first byte */
- chunk_size = BE_32(&this->buf[stream_ptr]) & 0x00FFFFFF;
- stream_ptr += 4;
-
- /* If length mismatch use size from MOV file and try to decode anyway */
- if (chunk_size != this->size)
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "MOV chunk size != encoded chunk size; using MOV chunk size\n");
-
- chunk_size = this->size;
-
- /* Number of 4x4 blocks in frame. */
- total_blocks = (this->width * this->height) / (4 * 4);
-
- /* Process chunk data */
- while (stream_ptr < chunk_size) {
- opcode = this->buf[stream_ptr++]; /* Get opcode */
-
- n_blocks = (opcode & 0x1f) +1; /* Extract block counter from opcode */
-
- /* If opcode MSbit is 0, we need more data to decide what to do */
- if ((opcode & 0x80) == 0) {
- colorA = (opcode << 8) | ((unsigned char)this->buf[stream_ptr++]);
- opcode = 0;
- if ((this->buf[stream_ptr] & 0x80) != 0) {
- /* Must behave as opcode 110xxxxx, using colorA computed above.*/
- /* Use fake opcode 0x20 to enter switch block at the right place */
- opcode = 0x20;
- n_blocks = 1;
- }
- }
-
- switch (opcode & 0xe0) {
- /* Skip blocks */
- case 0x80:
- while (n_blocks--)
- ADVANCE_BLOCK();
- break;
-
- /* Fill blocks with one color */
- case 0xa0:
- colorA = BE_16 (&this->buf[stream_ptr]);
- stream_ptr += 2;
- COLOR_TO_YUV (y, u, v, colorA);
- while (n_blocks--) {
- block_ptr = row_ptr + pixel_ptr;
- for (pixel_y = 0; pixel_y < 4; pixel_y++) {
- for (pixel_x = 0; pixel_x < 4; pixel_x++){
- this->yuv_planes.y[block_ptr] = y;
- this->yuv_planes.u[block_ptr] = u;
- this->yuv_planes.v[block_ptr] = v;
- block_ptr++;
- }
- block_ptr += row_inc;
- }
- ADVANCE_BLOCK();
- }
- break;
-
- /* Fill blocks with 4 colors */
- case 0xc0:
- colorA = BE_16 (&this->buf[stream_ptr]);
- stream_ptr += 2;
- case 0x20:
- colorB = BE_16 (&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* sort out the colors */
- ta = (colorA >> 10) & 0x1f;
- tb = (colorB >> 10) & 0x1f;
- COLOR_FIX (rgb4[3][0], ta);
- COLOR_FIX (rgb4[0][0], tb);
- tt = (11 * ta + 21 * tb) >> 5;
- COLOR_FIX (rgb4[1][0], tt);
- tt = (21 * ta + 11 * tb) >> 5;
- COLOR_FIX (rgb4[2][0], tt);
- ta = (colorA >> 5) & 0x1f;
- tb = (colorB >> 5) & 0x1f;
- COLOR_FIX (rgb4[3][1], ta);
- COLOR_FIX (rgb4[0][1], tb);
- tt = (11 * ta + 21 * tb) >> 5;
- COLOR_FIX (rgb4[1][1], tt);
- tt = (21 * ta + 11 * tb) >> 5;
- COLOR_FIX (rgb4[2][1], tt);
- ta = colorA & 0x1f;
- tb = colorB & 0x1f;
- COLOR_FIX (rgb4[3][2], ta);
- COLOR_FIX (rgb4[0][2], tb);
- tt = (11 * ta + 21 * tb) >> 5;
- COLOR_FIX (rgb4[1][2], tt);
- tt = (21 * ta + 11 * tb) >> 5;
- COLOR_FIX (rgb4[2][2], tt);
-
- /* RGB -> YUV */
- for (i = 0; i < 4; i++) {
- yuv4[i][0] = COMPUTE_Y(rgb4[i][0], rgb4[i][1], rgb4[i][2]);
- yuv4[i][1] = COMPUTE_U(rgb4[i][0], rgb4[i][1], rgb4[i][2]);
- yuv4[i][2] = COMPUTE_V(rgb4[i][0], rgb4[i][1], rgb4[i][2]);
- }
-
- while (n_blocks--) {
- block_ptr = row_ptr + pixel_ptr;
- for (pixel_y = 0; pixel_y < 4; pixel_y++) {
- index = this->buf[stream_ptr++];
- for (pixel_x = 0; pixel_x < 4; pixel_x++){
- idx = (index >> (2 * (3 - pixel_x))) & 0x03;
- this->yuv_planes.y[block_ptr] = yuv4[idx][0];
- this->yuv_planes.u[block_ptr] = yuv4[idx][1];
- this->yuv_planes.v[block_ptr] = yuv4[idx][2];
- block_ptr++;
- }
- block_ptr += row_inc;
- }
- ADVANCE_BLOCK();
- }
- break;
-
- /* Fill block with 16 colors */
- case 0x00:
- block_ptr = row_ptr + pixel_ptr;
- for (pixel_y = 0; pixel_y < 4; pixel_y++) {
- for (pixel_x = 0; pixel_x < 4; pixel_x++){
- /* We already have color of upper left pixel */
- if ((pixel_y != 0) || (pixel_x !=0)) {
- colorA = BE_16 (&this->buf[stream_ptr]);
- stream_ptr += 2;
- }
- COLOR_TO_YUV (y, u, v, colorA);
- this->yuv_planes.y[block_ptr] = y;
- this->yuv_planes.u[block_ptr] = u;
- this->yuv_planes.v[block_ptr] = v;
- block_ptr++;
- }
- block_ptr += row_inc;
- }
- ADVANCE_BLOCK();
- break;
-
- /* Unknown opcode */
- default:
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "Unknown opcode %d in rpza chunk.Skip remaining %d bytes of chunk data.\n",
- opcode, chunk_size - stream_ptr);
- return;
- } /* Opcode switch */
-
- }
-}
-
-/**************************************************************************
- * xine video plugin functions
- *************************************************************************/
-
-/*
- * This function receives a buffer of data from the demuxer layer and
- * figures out how to handle it based on its header flags.
- */
-static void qtrpza_decode_data (video_decoder_t *this_gen,
- buf_element_t *buf) {
-
- qtrpza_decoder_t *this = (qtrpza_decoder_t *) this_gen;
- xine_bmiheader *bih;
-
- vo_frame_t *img; /* video out frame */
-
- /* a video decoder does not care about this flag (?) */
- if (buf->decoder_flags & BUF_FLAG_PREVIEW)
- return;
-
- 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_STDHEADER) { /* need to initialize */
- this->stream->video_out->open (this->stream->video_out, this->stream);
-
- if(this->buf)
- free(this->buf);
-
- bih = (xine_bmiheader *) buf->content;
- this->width = (bih->biWidth + 3) & ~0x03;
- this->height = (bih->biHeight + 3) & ~0x03;
- this->ratio = (double)this->width/(double)this->height;
-
- if (this->buf)
- free (this->buf);
- this->bufsize = VIDEOBUFSIZE;
- this->buf = malloc(this->bufsize);
- this->size = 0;
-
- init_yuv_planes(&this->yuv_planes, this->width, this->height);
-
- this->stream->video_out->open (this->stream->video_out, this->stream);
- this->decoder_ok = 1;
-
- /* load the stream/meta info */
- _x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Quicktime Video (RPZA)");
-
- return;
- } else if (this->decoder_ok) {
-
- if (this->size + buf->size > this->bufsize) {
- this->bufsize = this->size + 2 * buf->size;
- 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_FRAME_END) {
-
- img = this->stream->video_out->get_frame (this->stream->video_out,
- this->width, this->height,
- this->ratio, XINE_IMGFMT_YUY2,
- VO_BOTH_FIELDS);
-
- img->duration = this->video_step;
- img->pts = buf->pts;
- img->bad_frame = 0;
-
- decode_qtrpza(this);
- yuv444_to_yuy2(&this->yuv_planes, img->base[0], img->pitches[0]);
-
- img->draw(img, this->stream);
- img->free(img);
-
- this->size = 0;
- }
- }
-}
-
-/*
- * This function is called when xine needs to flush the system. Not
- * sure when or if this is used or even if it needs to do anything.
- */
-static void qtrpza_flush (video_decoder_t *this_gen) {
-}
-
-/*
- * This function resets the video decoder.
- */
-static void qtrpza_reset (video_decoder_t *this_gen) {
- qtrpza_decoder_t *this = (qtrpza_decoder_t *) this_gen;
-
- this->size = 0;
-}
-
-static void qtrpza_discontinuity (video_decoder_t *this_gen) {
-}
-
-/*
- * This function frees the video decoder instance allocated to the decoder.
- */
-static void qtrpza_dispose (video_decoder_t *this_gen) {
-
- qtrpza_decoder_t *this = (qtrpza_decoder_t *) this_gen;
-
- if (this->buf) {
- free (this->buf);
- this->buf = NULL;
- }
-
- if (this->decoder_ok) {
- this->decoder_ok = 0;
- 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) {
-
- qtrpza_decoder_t *this ;
-
- this = (qtrpza_decoder_t *) xine_xmalloc (sizeof (qtrpza_decoder_t));
-
- this->video_decoder.decode_data = qtrpza_decode_data;
- this->video_decoder.flush = qtrpza_flush;
- this->video_decoder.reset = qtrpza_reset;
- this->video_decoder.discontinuity = qtrpza_discontinuity;
- this->video_decoder.dispose = qtrpza_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (qtrpza_class_t *) class_gen;
-
- this->decoder_ok = 0;
- this->buf = NULL;
-
- return &this->video_decoder;
-}
-
-static char *get_identifier (video_decoder_class_t *this) {
- return "QT RPZA";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Quicktime Video (RPZA) decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- qtrpza_class_t *this;
-
- this = (qtrpza_class_t *) xine_xmalloc (sizeof (qtrpza_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;
-}
-
-/* plugin catalog information */
-static uint32_t supported_types[] = { BUF_VIDEO_RPZA, 0 };
-
-static decoder_info_t video_decoder_info = {
- supported_types, /* supported types */
- 1 /* priority */
-};
-
-plugin_info_t xine_plugin_info[] = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_VIDEO_DECODER, 18, "rpza", XINE_VERSION_CODE, &video_decoder_info, &init_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 11:08:26 +0000