/***************************************************************************** * * - XviD 1.x decoder module for mplayer/mencoder - * * Copyright(C) 2003 Marco Belli * 2003-2004 Edouard Gomez * * This program 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. * * This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * *****************************************************************************/ /***************************************************************************** * Includes ****************************************************************************/ #include #include #include "config.h" #include "mp_msg.h" #include "vd_internal.h" #include "m_option.h" #include /***************************************************************************** * Configuration options ****************************************************************************/ static int do_dr2 = 1; static int filmeffect = 0; static int lumadeblock = 0; static int chromadeblock = 0; static int lumadering = 0; static int chromadering = 0; const m_option_t xvid_dec_opts[] = { { "dr2", &do_dr2, CONF_TYPE_FLAG, 0, 0, 1, NULL}, { "nodr2", &do_dr2, CONF_TYPE_FLAG, 0, 1, 0, NULL}, { "filmeffect", &filmeffect, CONF_TYPE_FLAG, 0, 0, 1, NULL}, { "deblock-luma", &lumadeblock, CONF_TYPE_FLAG, 0, 0, 1, NULL}, { "deblock-chroma", &chromadeblock, CONF_TYPE_FLAG, 0, 0, 1, NULL}, { "dering-luma", &lumadering, CONF_TYPE_FLAG, 0, 0, 1, NULL}, { "dering-chroma", &chromadering, CONF_TYPE_FLAG, 0, 0, 1, NULL}, {NULL, NULL, 0, 0, 0, 0, NULL} }; /***************************************************************************** * Module private data ****************************************************************************/ typedef struct { int cs; unsigned char img_type; void* hdl; mp_image_t* mpi; int vo_initialized; } priv_t; /***************************************************************************** * Module function helpers ****************************************************************************/ static float stats2aspect(xvid_dec_stats_t *stats); /***************************************************************************** * Video decoder API function definitions ****************************************************************************/ /*============================================================================ * control - to set/get/query special features/parameters *==========================================================================*/ static int control(sh_video_t *sh,int cmd,void* arg,...) { return(CONTROL_UNKNOWN); } /*============================================================================ * init - initialize the codec *==========================================================================*/ static int init(sh_video_t *sh) { xvid_gbl_info_t xvid_gbl_info; xvid_gbl_init_t xvid_ini; xvid_dec_create_t dec_p; priv_t* p; int cs; memset(&xvid_gbl_info, 0, sizeof(xvid_gbl_info_t)); xvid_gbl_info.version = XVID_VERSION; memset(&xvid_ini, 0, sizeof(xvid_gbl_init_t)); xvid_ini.version = XVID_VERSION; memset(&dec_p, 0, sizeof(xvid_dec_create_t)); dec_p.version = XVID_VERSION; switch(sh->codec->outfmt[sh->outfmtidx]){ case IMGFMT_YV12: /* We will use our own buffers, this speeds decoding avoiding * frame memcpy's overhead */ cs = (do_dr2)?XVID_CSP_INTERNAL:XVID_CSP_USER; break; case IMGFMT_YUY2: cs = XVID_CSP_YUY2; break; case IMGFMT_UYVY: cs = XVID_CSP_UYVY; break; case IMGFMT_I420: case IMGFMT_IYUV: /* We will use our own buffers, this speeds decoding avoiding * frame memcpy's overhead */ cs = (do_dr2)?XVID_CSP_INTERNAL:XVID_CSP_USER; break; case IMGFMT_BGR15: cs = XVID_CSP_RGB555; break; case IMGFMT_BGR16: cs = XVID_CSP_RGB565; break; case IMGFMT_BGR32: cs = XVID_CSP_BGRA; break; case IMGFMT_YVYU: cs = XVID_CSP_YVYU; break; default: mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unsupported out_fmt: 0x%X\n", sh->codec->outfmt[sh->outfmtidx]); return(0); } /* Gather some information about the host library */ if(xvid_global(NULL, XVID_GBL_INFO, &xvid_gbl_info, NULL) < 0) { mp_msg(MSGT_MENCODER,MSGL_INFO, "xvid: could not get information about the library\n"); } else { mp_msg(MSGT_MENCODER,MSGL_INFO, "xvid: using library version %d.%d.%d (build %s)\n", XVID_VERSION_MAJOR(xvid_gbl_info.actual_version), XVID_VERSION_MINOR(xvid_gbl_info.actual_version), XVID_VERSION_PATCH(xvid_gbl_info.actual_version), xvid_gbl_info.build); } /* Initialize the xvidcore library */ if(xvid_global(NULL, XVID_GBL_INIT, &xvid_ini, NULL)) return(0); /* We use 0 width and height so xvidcore will resize its buffers * if required. That allows this vd plugin to do resize on first * VOL encountered (don't trust containers' width and height) */ dec_p.width = 0; dec_p.height = 0; /* Get a decoder instance */ if(xvid_decore(0, XVID_DEC_CREATE, &dec_p, NULL)<0) { mp_msg(MSGT_DECVIDEO, MSGL_ERR, "XviD init failed\n"); return(0); } p = malloc(sizeof(priv_t)); p->cs = cs; p->hdl = dec_p.handle; p->vo_initialized = 0; sh->context = p; switch(cs) { case XVID_CSP_INTERNAL: p->img_type = MP_IMGTYPE_EXPORT; break; case XVID_CSP_USER: p->img_type = MP_IMGTYPE_STATIC; break; default: p->img_type = MP_IMGTYPE_TEMP; break; } return(1); } /*============================================================================ * uninit - close the codec *==========================================================================*/ static void uninit(sh_video_t *sh){ priv_t* p = sh->context; if(!p) return; xvid_decore(p->hdl,XVID_DEC_DESTROY, NULL, NULL); free(p); } /*============================================================================ * decode - decode a frame from stream *==========================================================================*/ static mp_image_t* decode(sh_video_t *sh, void* data, int len, int flags) { xvid_dec_frame_t dec; xvid_dec_stats_t stats; mp_image_t* mpi = NULL; priv_t* p = sh->context; if(!data || len <= 0) return(NULL); memset(&dec,0,sizeof(xvid_dec_frame_t)); memset(&stats, 0, sizeof(xvid_dec_stats_t)); dec.version = XVID_VERSION; stats.version = XVID_VERSION; dec.bitstream = data; dec.length = len; dec.general |= XVID_LOWDELAY /* XXX: if lowdelay is unset, and xvidcore internal buffers are * used => crash. MUST FIX */ | (filmeffect ? XVID_FILMEFFECT : 0 ) | (lumadeblock ? XVID_DEBLOCKY : 0 ) | (chromadeblock ? XVID_DEBLOCKUV : 0 ); #if XVID_API >= XVID_MAKE_API(4,1) dec.general |= (lumadering ? XVID_DEBLOCKY|XVID_DERINGY : 0 ); dec.general |= (chromadering ? XVID_DEBLOCKUV|XVID_DERINGUV : 0 ); #endif dec.output.csp = p->cs; /* Decoding loop because xvidcore may return VOL information for * on the fly buffer resizing. In that case we must decode VOL, * init VO, then decode the frame */ do { int consumed; /* If we don't know frame size yet, don't even try to request * a buffer, we must loop until we find a VOL, so VO plugin * is initialized and we can obviously output something */ if (p->vo_initialized) { mpi = mpcodecs_get_image(sh, p->img_type, MP_IMGFLAG_ACCEPT_STRIDE, sh->disp_w, sh->disp_h); if(p->cs != XVID_CSP_INTERNAL) { dec.output.plane[0] = mpi->planes[0]; dec.output.plane[1] = mpi->planes[1]; dec.output.plane[2] = mpi->planes[2]; dec.output.stride[0] = mpi->stride[0]; dec.output.stride[1] = mpi->stride[1]; dec.output.stride[2] = mpi->stride[2]; } } /* Decode data */ consumed = xvid_decore(p->hdl, XVID_DEC_DECODE, &dec, &stats); if (consumed < 0) { mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Decoding error\n"); return(NULL); } /* Found a VOL information stats, if VO plugin is not initialized * yet then do it now */ if (stats.type == XVID_TYPE_VOL && !p->vo_initialized) { sh->aspect = stats2aspect(&stats); if(!mpcodecs_config_vo(sh, stats.data.vol.width, stats.data.vol.height, IMGFMT_YV12)) return(NULL); /* Don't take this path twice */ p->vo_initialized = !p->vo_initialized; } /* Don't forget to update buffer position and buffer length */ dec.bitstream += consumed; dec.length -= consumed; } while ((stats.type == XVID_TYPE_VOL || stats.type == XVID_TYPE_NOTHING) && dec.length > 0); /* There are two ways to get out of the decoding loop: * - a frame has been returned * - no more data in buffer and no frames returned */ /* If mpi is NULL, it proves nothing has been returned by the decoder * so don't try to display internal buffers. */ if (mpi != NULL && p->cs == XVID_CSP_INTERNAL) { mpi->planes[0] = dec.output.plane[0]; mpi->planes[1] = dec.output.plane[1]; mpi->planes[2] = dec.output.plane[2]; mpi->stride[0] = dec.output.stride[0]; mpi->stride[1] = dec.output.stride[1]; mpi->stride[2] = dec.output.stride[2]; } /* If we got out the decoding loop because the buffer was empty and there was nothing * to output yet, then just return NULL */ return((stats.type == XVID_TYPE_NOTHING)? NULL: mpi); } /***************************************************************************** * Helper functions ****************************************************************************/ /* Returns DAR value according to VOL's informations contained in stats * param */ static float stats2aspect(xvid_dec_stats_t *stats) { if (stats->type == XVID_TYPE_VOL) { float wpar; float hpar; float dar; /* MPEG4 strem stores PAR (Pixel Aspect Ratio), mplayer uses * DAR (Display Aspect Ratio) * * Both are related thanks to the equation: * width * DAR = ----- x PAR * height * * As MPEG4 is so well designed (*cough*), VOL header carries * both informations together -- lucky eh ? */ switch (stats->data.vol.par) { case XVID_PAR_11_VGA: /* 1:1 vga (square), default if supplied PAR is not a valid value */ wpar = hpar = 1.0f; break; case XVID_PAR_43_PAL: /* 4:3 pal (12:11 625-line) */ wpar = 12; hpar = 11; break; case XVID_PAR_43_NTSC: /* 4:3 ntsc (10:11 525-line) */ wpar = 10; hpar = 11; break; case XVID_PAR_169_PAL: /* 16:9 pal (16:11 625-line) */ wpar = 16; hpar = 11; break; case XVID_PAR_169_NTSC: /* 16:9 ntsc (40:33 525-line) */ wpar = 40; hpar = 33; break; case XVID_PAR_EXT: /* extended par; use par_width, par_height */ wpar = stats->data.vol.par_width; hpar = stats->data.vol.par_height; break; default: wpar = hpar = 1.0f; break; } dar = ((float)stats->data.vol.width*wpar); dar /= ((float)stats->data.vol.height*hpar); return(dar); } return(0.0f); } /***************************************************************************** * Module structure definition ****************************************************************************/ static const vd_info_t info = { "XviD 1.0 decoder", "xvid", "Marco Belli , Edouard Gomez ", "Marco Belli , Edouard Gomez ", "No Comment" }; LIBVD_EXTERN(xvid) /* Please do not change that tag comment. * arch-tag: b7d654a5-76ea-4768-9713-2c791567fe7d mplayer xvid decoder module */