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|
/*
* 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: xine_decoder.c,v 1.57 2003/12/14 22:13:24 siggi Exp $
*
* thin layer to use real binary-only codecs in xine
*
* code inspired by work from Florian Schneider for the MPlayer Project
*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <dlfcn.h>
#define LOG_MODULE "read_decoder"
#define LOG_VERBOSE
/*
#define LOG
*/
#include "bswap.h"
#include "xine_internal.h"
#include "video_out.h"
#include "buffer.h"
#include "xineutils.h"
typedef struct {
video_decoder_class_t decoder_class;
/* empty so far */
} real_class_t;
#define BUF_SIZE 65536
#define CHUNK_TAB_SIZE 128
typedef struct realdec_decoder_s {
video_decoder_t video_decoder;
real_class_t *cls;
xine_stream_t *stream;
void *rv_handle;
unsigned long (*rvyuv_custom_message)(unsigned long*,void*);
unsigned long (*rvyuv_free)(void*);
unsigned long (*rvyuv_hive_message)(unsigned long,unsigned long);
unsigned long (*rvyuv_init)(void*, void*); /* initdata,context */
unsigned long (*rvyuv_transform)(char*, char*,unsigned long*,unsigned long*,void*);
void *context;
uint32_t width, height;
double ratio;
uint8_t *chunk_buffer;
int chunk_buffer_size;
int chunk_buffer_max;
int num_chunks;
uint32_t *chunk_tab;
int chunk_tab_max;
uint8_t chunk_id;
/* keep track of timestamps, estimate framerate */
uint64_t pts;
int num_frames;
uint64_t last_pts;
uint64_t duration;
uint8_t *frame_buffer;
int frame_size;
int decoder_ok;
} realdec_decoder_t;
/* we need exact positions */
typedef struct {
short unk1;
short w;
short h;
short unk3;
int unk2;
int subformat;
int unk5;
int format;
} rv_init_t;
void *__builtin_vec_new(unsigned long size);
void __builtin_vec_delete(void *mem);
void __pure_virtual(void);
/*
* real codec loader
*/
static int load_syms_linux (realdec_decoder_t *this, char *codec_name) {
cfg_entry_t* entry = this->stream->xine->config->lookup_entry(
this->stream->xine->config, "codec.real_codecs_path");
char path[1024];
sprintf (path, "%s/%s", entry->str_value, codec_name);
lprintf ("opening shared obj '%s'\n", path);
this->rv_handle = dlopen (path, RTLD_LAZY);
if (!this->rv_handle) {
xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libreal: error: %s\n", dlerror());
_x_message(this->stream, XINE_MSG_LIBRARY_LOAD_ERROR,
codec_name, NULL);
return 0;
}
this->rvyuv_custom_message = dlsym (this->rv_handle, "RV20toYUV420CustomMessage");
this->rvyuv_free = dlsym (this->rv_handle, "RV20toYUV420Free");
this->rvyuv_hive_message = dlsym (this->rv_handle, "RV20toYUV420HiveMessage");
this->rvyuv_init = dlsym (this->rv_handle, "RV20toYUV420Init");
this->rvyuv_transform = dlsym (this->rv_handle, "RV20toYUV420Transform");
if (this->rvyuv_custom_message &&
this->rvyuv_free &&
this->rvyuv_hive_message &&
this->rvyuv_init &&
this->rvyuv_transform)
return 1;
xprintf (this->stream->xine, XINE_VERBOSITY_LOG,
_("libreal: Error resolving symbols! (version incompatibility?)\n"));
return 0;
}
static int init_codec (realdec_decoder_t *this, buf_element_t *buf) {
/* unsigned int* extrahdr = (unsigned int*) (buf->content+28); */
int result;
rv_init_t init_data = {11, 0, 0, 0, 0,
0, 1, 0}; /* rv30 */
switch (buf->type) {
case BUF_VIDEO_RV20:
if (!load_syms_linux (this, "drv2.so.6.0"))
return 0;
_x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Real Video 2.0");
break;
case BUF_VIDEO_RV30:
if (!load_syms_linux (this, "drv3.so.6.0"))
return 0;
_x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Real Video 3.0");
break;
case BUF_VIDEO_RV40:
if (!load_syms_linux(this, "drv4.so.6.0"))
return 0;
_x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Real Video 4.0");
break;
default:
xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG,
"libreal: error, i don't handle buf type 0x%08x\n", buf->type);
abort();
}
init_data.w = BE_16(&buf->content[12]);
init_data.h = BE_16(&buf->content[14]);
this->width = (init_data.w + 1) & (~1);
this->height = (init_data.h + 1) & (~1);
this->ratio = (double)this->width/(double)this->height;
lprintf ("init_data.w=%d(0x%x), init_data.h=%d(0x%x),"
"this->width=%d(0x%x), this->height=%d(0x%x)\n",
init_data.w, init_data.w,
init_data.h, init_data.h,
this->width, this->width, this->height, this->height);
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_WIDTH, this->width);
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HEIGHT, this->height);
init_data.subformat = BE_32(&buf->content[26]);
init_data.format = BE_32(&buf->content[30]);
#ifdef LOG
printf ("libreal: init_data for rvyuv_init:\n");
xine_hexdump ((char *) &init_data, sizeof (init_data));
printf ("libreal: buf->content\n");
xine_hexdump (buf->content, buf->size);
#endif
lprintf ("init codec %dx%d... %x %x\n",
init_data.w, init_data.h,
init_data.subformat, init_data.format );
this->context = NULL;
result = this->rvyuv_init (&init_data, &this->context);
lprintf ("init result: %d\n", result);
/* setup rv30 codec (codec sub-type and image dimensions): */
if ((init_data.format>=0x20200002) && (buf->type != BUF_VIDEO_RV40)) {
int i, j;
unsigned long *cmsg24;
unsigned long cmsg_data[9];
cmsg24 = xine_xmalloc((buf->size - 34 + 2) * sizeof(unsigned long));
cmsg24[0]=this->width;
cmsg24[1]=this->height;
for(i = 2, j = 34; j < buf->size; i++, j++)
cmsg24[i] = 4 * buf->content[j];
cmsg_data[0]=0x24;
cmsg_data[1]=1+((init_data.subformat>>16)&7);
cmsg_data[2]=(unsigned long) cmsg24;
#ifdef LOG
printf ("libreal: CustomMessage cmsg_data:\n");
xine_hexdump ((char *) cmsg_data, sizeof (cmsg_data));
printf ("libreal: cmsg24:\n");
xine_hexdump ((char *) cmsg24, (buf->size - 34 + 2) * sizeof(unsigned long));
#endif
this->rvyuv_custom_message (cmsg_data, this->context);
free(cmsg24);
}
this->stream->video_out->open(this->stream->video_out, this->stream);
this->frame_size = this->width*this->height;
this->frame_buffer = xine_xmalloc (this->width*this->height*3/2);
this->chunk_buffer = xine_xmalloc (BUF_SIZE);
this->chunk_buffer_max = BUF_SIZE;
this->chunk_tab = (uint32_t *) xine_xmalloc(CHUNK_TAB_SIZE * sizeof(uint32_t));
this->chunk_tab_max = CHUNK_TAB_SIZE;
return 1;
}
static void realdec_copy_frame (realdec_decoder_t *this, uint8_t *base[3], int pitches[3]) {
unsigned int i, j;
uint8_t *src, *dst;
src = this->frame_buffer;
dst = base[0];
for (i=0; i < this->height; ++i) {
memcpy (dst, src, this->width);
src += this->width;
dst += pitches[0];
}
for (i=1; i < 3; i++) {
src = this->frame_buffer + this->frame_size;
dst = base[i];
if (i == 2) {
src += this->frame_size / 4;
}
for (j=0; j < (this->height / 2); ++j) {
memcpy (dst, src, (this->width / 2));
src += this->width / 2;
dst += pitches[i];
}
}
}
static void realdec_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
realdec_decoder_t *this = (realdec_decoder_t *) this_gen;
lprintf ("decode_data, flags=0x%08x, len=%d, pts=%lld ...\n",
buf->decoder_flags, buf->size, buf->pts);
if (buf->decoder_flags & BUF_FLAG_PREVIEW) {
/* real_find_sequence_header (&this->real, buf->content, buf->content + buf->size);*/
} else if (buf->decoder_flags & BUF_FLAG_HEADER) {
this->decoder_ok = init_codec (this, buf);
if( !this->decoder_ok )
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HANDLED, 0);
} else if (this->decoder_ok && this->context) {
if (this->chunk_buffer_size + buf->size > this->chunk_buffer_max) {
this->chunk_buffer_max = this->chunk_buffer_size + 2 * buf->size;
this->chunk_buffer = realloc (this->chunk_buffer, this->chunk_buffer_max);
}
if (buf->decoder_flags & BUF_FLAG_FRAME_START) {
if (this->num_chunks>0) {
int result;
vo_frame_t *img;
unsigned long transform_out[5];
unsigned long transform_in[6];
transform_in[0] = this->chunk_buffer_size; /* length of the packet (sub-packets appended) */
transform_in[1] = 0; /* unknown, seems to be unused */
transform_in[2] = this->num_chunks-1; /* number of sub-packets - 1 */
transform_in[3] = (unsigned long) this->chunk_tab; /* table of sub-packet offsets */
transform_in[4] = 0; /* unknown, seems to be unused */
transform_in[5] = this->pts/90; /* timestamp (the integer value from the stream) */
#ifdef LOG
printf ("libreal: got %d chunks in buffer and new frame is starting\n",
this->num_chunks);
printf ("libreal: decoding %d bytes:\n", this->chunk_buffer_size);
xine_hexdump (this->chunk_buffer, this->chunk_buffer_size);
printf ("libreal: transform_in:\n");
xine_hexdump ((char *) transform_in, 6*4);
printf ("libreal: chunk_table:\n");
xine_hexdump ((char *) this->chunk_tab, this->num_chunks*8+8);
#endif
result = this->rvyuv_transform (this->chunk_buffer,
this->frame_buffer,
transform_in,
transform_out,
this->context);
lprintf ("transform result: %08x\n", result);
lprintf ("transform_out:\n");
#ifdef LOG
xine_hexdump ((char *) transform_out, 5*4);
#endif
/* Sometimes the stream contains video of a different size
* to that specified in the realmedia file */
if(transform_out[0] && ((transform_out[3] != this->width) ||
(transform_out[4] != this->height))) {
this->width = transform_out[3];
this->height = transform_out[4];
this->frame_size = this->width * this->height;
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_WIDTH, this->width);
_x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HEIGHT, this->height);
}
img = this->stream->video_out->get_frame (this->stream->video_out,
/* this->av_picture.linesize[0], */
this->width,
this->height,
this->ratio,
XINE_IMGFMT_YV12,
VO_BOTH_FIELDS);
if ( this->last_pts && (this->pts != this->last_pts)) {
int64_t new_duration;
img->pts = this->pts;
new_duration = (this->pts - this->last_pts) / (this->num_frames+1);
this->duration = (this->duration * 9 + new_duration)/10;
this->num_frames = 0;
} else {
img->pts = 0;
this->num_frames++;
}
if (this->pts)
this->last_pts = this->pts;
img->duration = this->duration;
_x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, this->duration);
img->bad_frame = 0;
lprintf ("pts %lld %lld diff %lld # %d est. duration %lld\n",
this->pts,
buf->pts,
buf->pts - this->pts,
this->num_frames,
this->duration);
realdec_copy_frame (this, img->base, img->pitches);
img->draw(img, this->stream);
img->free(img);
}
/* new frame starting */
lprintf ("new frame starting (%d bytes)\n", buf->size);
memcpy (this->chunk_buffer, buf->content, buf->size);
this->chunk_buffer_size = buf->size;
this->chunk_tab[0] = 1;
this->chunk_tab[1] = 0;
this->num_chunks = 1;
this->chunk_id = buf->content[0];
if (buf->pts)
this->pts = buf->pts;
else
this->pts = 0;
} else {
/* buffer another fragment */
lprintf ("another fragment (%d chunks in buffer)\n", this->num_chunks);
if (((buf->type != BUF_VIDEO_RV30) && (buf->type != BUF_VIDEO_RV40)) ||
(buf->content[0] == this->chunk_id)) {
memcpy (this->chunk_buffer+this->chunk_buffer_size, buf->content, buf->size);
if(2*this->num_chunks+1 >= this->chunk_tab_max) {
this->chunk_tab_max += CHUNK_TAB_SIZE;
this->chunk_tab = realloc (this->chunk_tab,
this->chunk_tab_max * sizeof(uint32_t));
}
this->chunk_tab[2*this->num_chunks] = 1;
this->chunk_tab[2*this->num_chunks+1] = this->chunk_buffer_size;
this->num_chunks++;
this->chunk_buffer_size += buf->size;
if (buf->pts)
this->pts = buf->pts;
}
}
}
lprintf ("decode_data...done\n");
}
static void realdec_flush (video_decoder_t *this_gen) {
/* realdec_decoder_t *this = (realdec_decoder_t *) this_gen; */
lprintf ("flush\n");
}
static void realdec_reset (video_decoder_t *this_gen) {
realdec_decoder_t *this = (realdec_decoder_t *) this_gen;
this->num_chunks = 0;
}
static void realdec_discontinuity (video_decoder_t *this_gen) {
realdec_decoder_t *this = (realdec_decoder_t *) this_gen;
this->pts = 0;
this->last_pts = 0;
this->num_frames = 0;
}
static void realdec_dispose (video_decoder_t *this_gen) {
realdec_decoder_t *this = (realdec_decoder_t *) this_gen;
lprintf ("dispose\n");
if (this->context)
this->stream->video_out->close(this->stream->video_out, this->stream);
if (this->rvyuv_free && this->context)
this->rvyuv_free (this->context);
if (this->rv_handle)
dlclose (this->rv_handle);
if (this->frame_buffer)
free (this->frame_buffer);
if (this->chunk_buffer)
free (this->chunk_buffer);
if (this->chunk_tab)
free (this->chunk_tab);
free (this);
lprintf ("dispose done\n");
}
static video_decoder_t *open_plugin (video_decoder_class_t *class_gen,
xine_stream_t *stream) {
real_class_t *cls = (real_class_t *) class_gen;
realdec_decoder_t *this ;
this = (realdec_decoder_t *) xine_xmalloc (sizeof (realdec_decoder_t));
this->video_decoder.decode_data = realdec_decode_data;
this->video_decoder.flush = realdec_flush;
this->video_decoder.reset = realdec_reset;
this->video_decoder.discontinuity = realdec_discontinuity;
this->video_decoder.dispose = realdec_dispose;
this->stream = stream;
this->cls = cls;
this->context = 0;
this->num_chunks = 0;
this->pts = 0;
this->last_pts = 0;
this->num_frames = 0;
this->duration = 6000;
return &this->video_decoder;
}
/*
* real plugin class
*/
static char *get_identifier (video_decoder_class_t *this) {
return "realvdec";
}
static char *get_description (video_decoder_class_t *this) {
return "real binary-only codec based video decoder plugin";
}
static void dispose_class (video_decoder_class_t *this) {
free (this);
}
/*
* some fake functions to make real codecs happy
*/
void *__builtin_vec_new(unsigned long size) {
return malloc(size);
}
void __builtin_vec_delete(void *mem) {
free(mem);
}
void __pure_virtual(void) {
lprintf("libreal: FATAL: __pure_virtual() called!\n");
/* exit(1); */
}
static void *init_class (xine_t *xine, void *data) {
real_class_t *this;
config_values_t *config = xine->config;
char *real_codec_path;
this = (real_class_t *) xine_xmalloc (sizeof (real_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;
real_codec_path = config->register_string (config, "codec.real_codecs_path",
"unknown",
_("path to real player codecs, if installed"),
NULL, 10, NULL, NULL);
if (!strcmp (real_codec_path, "unknown")) {
struct stat s;
/* try some auto-detection */
if (!stat ("/usr/local/RealPlayer8/Codecs/drv3.so.6.0", &s))
config->update_string (config, "codec.real_codecs_path",
"/usr/local/RealPlayer8/Codecs");
if (!stat ("/usr/RealPlayer8/Codecs/drv3.so.6.0", &s))
config->update_string (config, "codec.real_codecs_path",
"/usr/RealPlayer8/Codecs");
if (!stat ("/usr/lib/RealPlayer8/Codecs/drv3.so.6.0", &s))
config->update_string (config, "codec.real_codecs_path",
"/usr/lib/RealPlayer8/Codecs");
if (!stat ("/opt/RealPlayer8/Codecs/drv3.so.6.0", &s))
config->update_string (config, "codec.real_codecs_path",
"/opt/RealPlayer8/Codecs");
if (!stat ("/usr/lib/RealPlayer9/users/Real/Codecs/drv3.so.6.0", &s))
config->update_string (config, "codec.real_codecs_path",
"/usr/lib/RealPlayer9/users/Real/Codecs");
if (!stat ("/usr/lib/win32/drv3.so.6.0", &s))
config->update_string (config, "codec.real_codecs_path",
"/usr/lib/win32");
}
lprintf ("real codec path : %s\n", real_codec_path);
return this;
}
/*
* exported plugin catalog entry
*/
static uint32_t supported_types[] = { BUF_VIDEO_RV20,
BUF_VIDEO_RV30,
BUF_VIDEO_RV40,
0 };
static decoder_info_t dec_info_real = {
supported_types, /* supported types */
6 /* priority */
};
plugin_info_t xine_plugin_info[] = {
/* type, API, "name", version, special_info, init_function */
{ PLUGIN_VIDEO_DECODER | PLUGIN_MUST_PRELOAD, 17, "real", XINE_VERSION_CODE, &dec_info_real, init_class },
{ PLUGIN_NONE, 0, "", 0, NULL, NULL }
};
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