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Diffstat (limited to 'src/libdivx4/xine_decoder.c')
-rw-r--r--src/libdivx4/xine_decoder.c603
1 files changed, 0 insertions, 603 deletions
diff --git a/src/libdivx4/xine_decoder.c b/src/libdivx4/xine_decoder.c
deleted file mode 100644
index 5867a643b..000000000
--- a/src/libdivx4/xine_decoder.c
+++ /dev/null
@@ -1,603 +0,0 @@
-/*
- * Copyright (C) 2001-2004 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 1.51 2004/03/03 20:09:13 mroi Exp $
- *
- * xine decoder plugin using divx4
- *
- * by Harm van der Heijden <hrm@users.sourceforge.net>
- * Based on the ffmpeg xine plugin, with ideas from avifile's
- * (http://avifile.sourceforge.net) divx4 plugin.
- *
- * Requires the divxdecore library. Find it at http://www.divx.com or
- * http://avifile.sourceforge.net
- * This plugin may or may not work with the open source codec OpenDivx.
- *
- * This is My First Plugin (tm). Read the source comments for hairy details.
- *
- */
-
-/* 1: catch segmentation fault signal when checking version of libdivxdecore
- * 0: don't try to catch
- * set to 0 if the signal stuff gives problems. tested in x86 linux w/ glibc2.
- */
-#define CATCH_SIGSEGV 1
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <inttypes.h>
-#include <string.h>
-#include <dlfcn.h>
-
-#define LOG_MODULE "divx4_decoder"
-#define LOG_VERBOSE
-/*
-#define LOG
-*/
-
-#include "xine_internal.h"
-#include "video_out.h"
-#include "buffer.h"
-#include "metronom.h"
-#include "xineutils.h"
-
-#include "decore-if.h"
-
-#if CATCH_SIGSEGV
-#include <signal.h>
-
-/* to be able to restore the old handler */
-void (*old_handler)(int);
-
-void catch_sigsegv(int sig)
-{
- printf("divx4: caught SIGSEGV, caused by libdivxdecore.\n"
- "divx4: please uninstall this library or disable the libdivxdecore\n"
- "divx4: version check by setting the following line in HOME/.xinerc:\n"
- "divx4: divx4_forceversion:1\n"
- "divx4: see xine-ui/doc/README.divx4 for details.\n"
- "divx4: fatal error; exiting.\n");
- _x_abort();
-}
-#endif
-
-typedef struct divx4_decoder_s {
- video_decoder_t video_decoder;
-
- vo_instance_t *video_out;
- int video_step;
- int decoder_ok;
-
- xine_bmiheader bih;
- unsigned char *buf;
- int size;
- int bufsize;
- double ratio;
-
- decoreFunc decore; /* ptr to decore function in libdivxdecore */
-
- /* version as reported by decore with GET_OPT_VERSION command */
- int version;
- /* whether to decode MSMPEG4_V3 format
- (aka divx ;-) and divx 3.11-- thank god they dropped the smileys
- with divx4)
- */
- int use_311_compat;
- /* postprocessing level; currently valid values 0-6 (internally 0-100)
- set by divx4_postproc in .xinerc */
- int postproc;
- /* can we handle 311 format? No easy way to find out (divx4linux can,
- OpenDivx cannot, so the user can set it in .xinerc. If 0, can_handle
- only returns MPEG4, yielding 311 to ffmpeg */
- int can_handle_311;
- int skipframes;
-} divx4_decoder_t;
-
-#define VIDEOBUFSIZE 128*1024
-
-
-static char* decore_retval(int ret)
-{
- static char buf[128];
- switch (ret) {
- case DEC_OK: return "DEC_OK";
- case DEC_MEMORY: return "DEC_MEMORY";
- case DEC_BAD_FORMAT: return "DEC_BAD_FORMAT";
- case DEC_EXIT: return "DEC_EXIT";
- }
- sprintf(buf, "[Unknown code %d]", ret);
- return buf;
-}
-
-/* try to get the version libdivxdecore */
-static void divx4_get_version(divx4_decoder_t *this)
-{
- /* if version set in xine config file, do not attempt further checking
- * (but do print a warning about this!) */
- if (this->version) {
- /* this dangerous stuff warrants an extra warning */
- printf("divx4: assuming libdivxdecore version is %d\n", this->version);
- return;
- }
-
-#if CATCH_SIGSEGV
- /* try to catch possible segmentation fault triggered by version check.
- * old versions of OpenDivx are known to do this.
- * we have to exit(1) in case it happens, but at least the user'll know
- * what happened */
- old_handler = signal(SIGSEGV, catch_sigsegv);
- if (old_handler == SIG_ERR)
- printf("divx4: failed to set SIGSEGV handler for libdivxdecore version check. Danger!\n");
- /* ask decore for version, using arbitrary handle 123 */
- this->version = this->decore(123, DEC_OPT_VERSION, 0, 0);
- /* restore old signal handler */
- if (old_handler != SIG_ERR)
- signal(SIGSEGV, old_handler);
-#else
- /* no SIGSEGV catching, let's hope survive this... */
- this->version = this->decore(123, DEC_OPT_VERSION, 0, 0);
-#endif
-
- if (this->version < 100) { /* must be an error code */
- printf("divx4: libdivxdecore failed to return version number (returns %s)\n",
- decore_retval(this->version));
- this->version = 0;
- }
- printf("divx4: found divx4 or OpenDivx decore library, version %d\n",
- this->version);
-}
-
-/* check to see if the libdivxdecore version is recent enough.
- * returns 1 if ok, 0 if not. */
-static int divx4_check_version(divx4_decoder_t *this)
-{
- /* now check the version
- * oktober '01 and later are ok. (early august releases had a (possible)
- * problem with DEC_OPT_RELEASE, which is very important currently) */
- if (this->version < 20011000) {
- printf("divx4: libdivxdecore version \"%d\" too old. Need 20011000 or later\n"
- "divx4: see README.divx4 for details on where to find libdivxdecore.\n",
- this->version);
- return 0;
- }
-
- return 1;
-}
-
-static void divx4_set_pp(divx4_decoder_t *this) {
- DEC_SET setpp; /* for setting postproc level */
- int ret;
-
- lprintf ("this->decoder_ok=%d\n", this->decoder_ok);
-
- if (!this->decoder_ok)
- return;
-
- /* multiply postproc level by 10 for internal consumption */
- printf("divx4: Setting post processing level to %d (see ~/.xine/options)\n"
- "divx4: Valid range 0-6, reduce if you get frame drop\n",
- this->postproc);
-
- setpp.postproc_level = this->postproc*10;
- setpp.deblock_hor_luma = 0;
- setpp.deblock_ver_luma = 0;
- setpp.deblock_hor_chr = 0;
- setpp.deblock_ver_chr = 0;
- setpp.dering_luma = 0;
- setpp.dering_chr = 0;
- setpp.pp_semaphore = 0;
-
- ret = this->decore((unsigned long)this, DEC_OPT_SETPP, &setpp, 0);
- if (ret != DEC_OK) {
- printf("divx4: decore DEC_OPT_SETPP command returned %s.\n", decore_retval(ret));
- /* perhaps not fatal, so we'll continue */
- }
-}
-
-
-/* helper function to initialize decore */
-static int divx4_init_decoder(divx4_decoder_t *this, buf_element_t *buf) {
-
- DEC_PARAM param; /* for init */
- int ret, codec_type;
-
- lprintf ("init_decoder\n");
-
- memcpy ( &this->bih, buf->content, sizeof (xine_bmiheader));
-
- codec_type = buf->type & 0xFFFF0000;
-
- /* do we need divx 3.11 compatibility mode? */
- switch (buf->type & 0xFFFF0000) {
- case BUF_VIDEO_MSMPEG4_V1:
- case BUF_VIDEO_MSMPEG4_V2:
- case BUF_VIDEO_MSMPEG4_V3:
- if (this->version >= 20020303) {
- param.codec_version=311;
- this->use_311_compat = 0;
- } else {
- this->use_311_compat = 1;
- }
- break;
- case BUF_VIDEO_MPEG4:
- case BUF_VIDEO_DIVX5:
- if (this->version >= 20020303)
- param.codec_version=500;
-
- this->use_311_compat = 0;
- if (this->version >= 20020303)
- param.codec_version=500;
- break;
- default:
- printf ("divx4: unknown video format (buftype: 0x%08X)\n",
- buf->type & 0xFFFF0000);
- }
-
- this->ratio = (double)this->bih.biWidth/(double)this->bih.biWidth;
-
- /* setup decoder; inspired by avifile's plugin */
- param.x_dim=this->bih.biWidth;
- param.y_dim=this->bih.biHeight;
- param.time_incr = 15; /* no idea what this does */
-
- param.build_number=0;
-
- param.output_format=DEC_USER;
- param.build_number=0;
- memset(&param.buffers, 0, sizeof(param.buffers));
-
- ret = this->decore((unsigned long)this, DEC_OPT_INIT, &param, &this->bih);
- if (ret != DEC_OK) {
- printf("divx4: decore DEC_OPT_INIT command returned %s.\n", decore_retval(ret));
- return 0;
- }
-
- this->decoder_ok = 1;
-
- divx4_set_pp( this );
-
- return 1;
-}
-
-/* helper function to copy data from decore's internal buffer to a vo frame */
-static inline void divx4_copy_frame(divx4_decoder_t *this, vo_frame_t *img,
- DEC_PICTURE pict)
-{
- /* We need to copy the yuv data from the decoder's internal buffers.
- Y size is width*height, U and V width*height/4 */
- int i;
- int src_offset,dst_offset;
-
- /* copy y data; use shortcut if stride_y equals width */
- src_offset = 0;
- dst_offset = 0;
- if (pict.stride_y == img->pitches[0]) {
- xine_fast_memcpy(img->base[0]+dst_offset, pict.y, img->pitches[0]*this->bih.biHeight);
- dst_offset += img->pitches[0] * this->bih.biHeight;
- }
- else { /* copy line by line */
- for (i=0; i<this->bih.biHeight; i++) {
- xine_fast_memcpy(img->base[0]+dst_offset, pict.y+src_offset, this->bih.biWidth);
- src_offset += pict.stride_y;
- dst_offset += img->pitches[0];
- }
- }
-
- /* same for u,v data, but at 1/4 resolution.
- FIXME: Weird... I thought YV12 means order y-v-u, yet base[1]
- seems to be u and base[2] is v. */
-
- /* copy u and v data */
- src_offset = 0;
- dst_offset = 0;
- if (pict.stride_uv == img->pitches[1] && pict.stride_uv == img->pitches[2]) {
- xine_fast_memcpy(img->base[1]+dst_offset, pict.u, (img->pitches[1]*this->bih.biHeight)/4);
- xine_fast_memcpy(img->base[2]+dst_offset, pict.v, (img->pitches[2]*this->bih.biHeight)/4);
- dst_offset += (this->bih.biWidth*this->bih.biHeight)/4;
- }
- else {
- int dst_offset_v = 0;
- for (i=0; i<this->bih.biHeight>>1; i++) {
- xine_fast_memcpy(img->base[1]+dst_offset, pict.u+src_offset, this->bih.biWidth/2);
- xine_fast_memcpy(img->base[2]+dst_offset_v, pict.v+src_offset, this->bih.biWidth/2);
- src_offset += pict.stride_uv;
- dst_offset += img->pitches[1];
- dst_offset_v += img->pitches[2];
- }
- }
-}
-
-static int divx4_can_handle (video_decoder_t *this_gen, int buf_type) {
- divx4_decoder_t *this = (divx4_decoder_t *) this_gen;
- buf_type &= 0xFFFF0000;
-
- lprintf ("can_handle\n");
-
- /* divx4 currently does not support MSMPEG4 v1/v2 */
- return ( (buf_type == BUF_VIDEO_MSMPEG4_V3 && this->can_handle_311) ||
- /* buf_type == BUF_VIDEO_MSMPEG4_V2 || */
- (buf_type == BUF_VIDEO_MPEG4) ||
- (buf_type == BUF_VIDEO_DIVX5));
-}
-
-/* copied verbatim from ffmpeg plugin */
-static void divx4_init (video_decoder_t *this_gen, vo_instance_t *video_out) {
-
- divx4_decoder_t *this = (divx4_decoder_t *) this_gen;
-
- lprintf ("divx4_init\n");
-
- this->video_out = video_out;
- this->decoder_ok = 0;
- this->buf = NULL;
-}
-
-
-static void divx4_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
-
- DEC_FRAME frame; /* for getting a frame */
- DEC_PICTURE pict;/* contains ptrs to the decoders internal yuv buffers */
- vo_frame_t *img; /* video out frame */
- int ret;
-
- divx4_decoder_t *this = (divx4_decoder_t *) this_gen;
-
- lprintf ("decoding buffer %08x, flags = %08x\n", buf, buf->decoder_flags);
-
- if (buf->decoder_flags & BUF_FLAG_PREVIEW)
- return;
-
- if (buf->decoder_flags & BUF_FLAG_STDHEADER) { /* need to initialize */
- /* only proceed if version is good and initialization succeeded */
-
- lprintf ("get_version...\n");
-
- divx4_get_version(this);
- this->decoder_ok = ( divx4_check_version(this) &&
- divx4_init_decoder (this, buf) );
- if (this->decoder_ok) {
- this->video_out->open (this->video_out);
-
- if( this->buf )
- free( this->buf );
-
- this->buf = malloc( VIDEOBUFSIZE );
- this->bufsize = VIDEOBUFSIZE;
-
- this->skipframes = 0;
- }
- return;
- }
-
- if (! this->decoder_ok) { /* don't try to do anything */
- /* if it is because of the version, print the warning again.
- * otherwise it's an unknown internal error. */
- if (divx4_check_version(this) != 0) /* version is good */
- printf("divx4: internal error; decoder not initialized.\n");
- return;
- }
-
- if( this->size + buf->size > this->bufsize ) {
- this->bufsize = this->size + 2 * buf->size;
- printf("divx4: 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) { /* need to decode a frame */
- /* allocate image (taken from ffmpeg plugin) */
- img = this->video_out->get_frame (this->video_out, this->bih.biWidth,
- this->bih.biHeight, this->ratio,
- XINE_IMGFMT_YV12,
- VO_BOTH_FIELDS);
-
- img->pts = buf->pts;
- img->duration = this->video_step;
- /* setup the decode frame parameters, as demonstrated by avifile.
- Old versions used DEC_YV12, but that was basically wrong and just
- happened to work with the Xv driver. Now DEC_USER is the only option.
- */
- frame.bitstream=this->buf;
- frame.bmp=&pict; /* decore will set ptrs to internal y,u&v buffers */
- frame.length=this->size;
- frame.render_flag=1;
- frame.stride=this->bih.biWidth;
-
- if(this->use_311_compat)
- ret = this->decore((unsigned long)this, DEC_OPT_FRAME_311, &frame, 0);
- else
- ret = this->decore((unsigned long)this, DEC_OPT_FRAME, &frame, 0);
-
- if (ret != DEC_OK || this->skipframes) {
- if( !this->skipframes )
- printf("divx4: decore DEC_OPT_FRAME command returned %s.\n",
- decore_retval(ret));
- img->bad_frame = 1; /* better skip this one */
- }
- else {
- divx4_copy_frame(this, img, pict);
- img->bad_frame = 0;
- }
-
- this->skipframes = img->draw(img);
- if( this->skipframes < 0 )
- this->skipframes = 0;
- img->free(img);
-
- this->size = 0;
- }
-}
-
-static void divx4_close (video_decoder_t *this_gen) {
-
- divx4_decoder_t *this = (divx4_decoder_t *) this_gen;
-
- printf ("divx4: close\n");
-
- if (this->decoder_ok) {
- /* FIXME: this segfaults here */
- /* Note: we NEED this; after 0.9.4, xine closes and reopens
- * decoders when seeking. If DEC_OPT_RELEASE is disabled, it will
- * cause a memory leak of plusminus 5M per shot */
- this->decore((unsigned long)this, DEC_OPT_RELEASE, 0, 0);
- this->decoder_ok = 0;
- this->video_out->close(this->video_out);
- }
-
- if (this->buf)
- free(this->buf);
- this->buf = NULL;
-}
-
-static void divx4_update_postproc(void *this_gen, xine_cfg_entry_t *entry) {
-
- divx4_decoder_t *this = (divx4_decoder_t *) this_gen;
-
- lprintf ("update_postproc this=0x%08x, decoder_ok = %d\n", this, this->decoder_ok);
-
- if( this->postproc != entry->num_value) {
- this->postproc = entry->num_value;
- divx4_set_pp( this );
- }
-}
-
-
-static char *divx4_get_id(void) {
- lprintf ("get_id\n");
- return "divx4 video decoder";
-}
-
-static void divx4_flush(video_decoder_t *this_gen) {
- lprintf ("flush\n");
-}
-
-static void divx4_reset(video_decoder_t *this_gen) {
- /* seems to handle seeking quite nicelly without any code here */
- lprintf ("reset\n");
-}
-
-static void divx4_dispose(video_decoder_t *this_gen) {
- lprintf ("dispose\n");
- free (this_gen);
-}
-
-/* This is pretty generic. I took the liberty to increase the
- priority over that of libffmpeg :-) */
-static void *init_video_decoder_plugin (xine_t *xine, void *data) {
-
- divx4_decoder_t *this ;
- char *libdecore_name;
- void *libdecore_handle;
- decoreFunc libdecore_func = 0;
- config_values_t *cfg;
-
- cfg = xine->config;
-
- /* Try to dlopen libdivxdecore, then look for decore function
- if it fails, print a message and return 0 so that xine ignores
- us from then on. */
- libdecore_name = cfg->register_string (cfg, "codec.divx4_libdivxdecore", "libdivxdecore.so",
- _("Relative path to libdivxdecore.so to open"),
- NULL, 0, NULL, NULL);
-
- libdecore_handle = dlopen(libdecore_name, RTLD_LAZY);
- if (libdecore_handle)
- libdecore_func = dlsym(libdecore_handle, "decore");
- if (! libdecore_func) {
- /* no library or no decore function. this plugin can do nothing */
- return NULL;
- }
-
- this = (divx4_decoder_t *) xine_xmalloc (sizeof (divx4_decoder_t));
-
- this->decoder_ok = 0;
-
- this->video_decoder.init = divx4_init;
- this->video_decoder.decode_data = divx4_decode_data;
- this->video_decoder.close = divx4_close;
- this->video_decoder.get_identifier = divx4_get_id;
- this->video_decoder.flush = divx4_flush;
- this->video_decoder.reset = divx4_reset;
- this->video_decoder.dispose = divx4_dispose;
- this->decore = libdecore_func;
- this->postproc = cfg->register_range (cfg, "codec.divx4_postproc", 3,
- 0, 6,
- _("the postprocessing level, 0 = none and fast, 6 = all and slow"),
- NULL, 10, divx4_update_postproc, this);
- this->can_handle_311 = cfg->register_bool (cfg, "codec.divx4_msmpeg4v3", 1,
- _("use divx4 plugin for msmpeg4v3 streams"),
- NULL, 10, NULL, NULL);
- this->size = 0;
- /* allow override of version checking by user */
- this->version = cfg->register_num(cfg, "codec.divx4_forceversion", 0,
- _("Divx version to check for (set to 0 (default) if unsure)"),
- NULL, 20, NULL, NULL);
-
- /* if the version set in the config file, we can check right now.
- * otherwise postpone until we retrieve the version from the library
- * in the first decoding call (we'll only ever get there if this
- * plugin has the highest priority, which by default it has not). */
- if ( this->version != 0 && divx4_check_version(this) == 0 ) { /* failed */
- free(this);
- return 0;
- }
- /* at the moment availabe values are 0-6, but future versions may support
- higher levels. Internally, postproc is multiplied by 10 and values
- between 0 and 100 are valid */
- if (this->postproc > 10) this->postproc=10;
- if (this->postproc < 0) this->postproc=0;
-
- lprintf ("this=0x%08x, decoder_ok = %d\n", this, this->decoder_ok);
-
- return (video_decoder_t *) this;
-}
-
-/*
- * exported plugin catalog entry
- */
-
-static uint32_t video_types[] = {
- /* BUF_VIDEO_MSMPEG4_V3 && this->can_handle_311 , */
- /* BUF_VIDEO_MSMPEG4_V2, */
- BUF_VIDEO_MPEG4, BUF_VIDEO_DIVX5,
- 0
- };
-
-static decoder_info_t dec_info_video = {
- video_types, /* supported types */
- 4 /* priority */
-};
-
-plugin_info_t xine_plugin_info[] = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_VIDEO_DECODER, 10, "divx4", XINE_VERSION_CODE, &dec_info_video, init_video_decoder_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 06:17:26 +0000