--- /dev/null
+/*****************************************************************************
+ * mash.c: Video decoder using openmash codec implementations
+ *****************************************************************************
+ * Copyright (C) 2004 VideoLAN
+ * $Id$
+ *
+ * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <vlc/vlc.h>
+#include <vlc/decoder.h>
+#include <vlc/vout.h>
+
+#include <p64/p64.h>
+
+/*****************************************************************************
+ * decoder_sys_t : video decoder descriptor
+ *****************************************************************************/
+struct decoder_sys_t
+{
+ /*
+ * Common properties
+ */
+ mtime_t i_pts;
+ IntraP64Decoder *p_decoder;
+ vlc_bool_t b_inited;
+ int i_counter;
+
+};
+
+/****************************************************************************
+ * Local prototypes
+ ****************************************************************************/
+static int OpenDecoder ( vlc_object_t * );
+static void CloseDecoder ( vlc_object_t * );
+
+static void *DecodeBlock ( decoder_t *, block_t ** );
+
+#if 0
+static picture_t *DecodeFrame( decoder_t *, block_t * );
+static block_t *SendFrame ( decoder_t *, block_t * );
+#endif
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( _("Video decoder using openmash") );
+ set_capability( "decoder", 50 );
+ set_callbacks( OpenDecoder, CloseDecoder );
+vlc_module_end();
+
+/*****************************************************************************
+ * OpenDecoder: probe the decoder and return score
+ *****************************************************************************/
+static int OpenDecoder( vlc_object_t *p_this )
+{
+ decoder_t *p_dec = (decoder_t*)p_this;
+ decoder_sys_t *p_sys;
+
+ switch( p_dec->fmt_in.i_codec )
+ {
+ /* Planar YUV */
+ case VLC_FOURCC('h','2','6','1'):
+ case VLC_FOURCC('H','2','6','1'):
+ break;
+
+ default:
+ return VLC_EGENERIC;
+ }
+
+ /* Allocate the memory needed to store the decoder's structure */
+ if( ( p_dec->p_sys = p_sys =
+ (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
+ {
+ msg_Err( p_dec, "out of memory" );
+ return VLC_EGENERIC;
+ }
+ /* Misc init */
+ p_sys->i_pts = 0;
+ p_sys->b_inited = VLC_FALSE;
+ p_sys->i_counter = 0;
+
+ /* Set output properties */
+ p_dec->fmt_out.i_cat = VIDEO_ES;
+ p_dec->fmt_out.i_codec = VLC_FOURCC('I','4','2','0');
+
+ /* Set callbacks */
+ p_dec->pf_decode_video = (picture_t *(*)(decoder_t *, block_t **))
+ DecodeBlock;
+ p_sys->p_decoder = new IntraP64Decoder();
+// foo->sync();
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * CloseDecoder: decoder destruction
+ *****************************************************************************/
+static void CloseDecoder( vlc_object_t *p_this )
+{
+ decoder_t *p_dec = (decoder_t*)p_this;
+ free( p_dec->p_sys );
+}
+
+
+/****************************************************************************
+ * DecodeBlock: the whole thing
+ ****************************************************************************
+ * This function must be fed with complete frames.
+ ****************************************************************************/
+static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ block_t *p_block;
+ picture_t *p_pic;
+ uint32_t i_video_header;
+ uint8_t *p_frame;
+ int cc, sbit, ebit, mba, gob, quant, mvdh, mvdv;
+ int i_width, i_height;
+
+ if( !pp_block || !*pp_block ) return NULL;
+
+ p_block = *pp_block;
+
+ if( !p_sys->i_pts && !p_block->i_pts && !p_block->i_dts )
+ {
+ /* We've just started the stream, wait for the first PTS. */
+ block_Release( p_block );
+ return NULL;
+ }
+
+
+ /* Date management */
+ if( p_block->i_pts > 0 || p_block->i_dts > 0 )
+ {
+ if( p_block->i_pts > 0 ) p_sys->i_pts = p_block->i_pts;
+ else if( p_block->i_dts > 0 ) p_sys->i_pts = p_block->i_dts;
+ }
+
+ i_video_header = *(uint32_t*)p_block->p_buffer; /* yes, it is native endian */
+ sbit = i_video_header >> 29; /* start bit position */
+ ebit = (i_video_header >> 26) & 7; /* end bit position */
+ msg_Dbg( p_dec, "sbit, ebit: %d,%d", sbit, ebit );
+ gob = (i_video_header >> 20) & 0xf; /* GOB number */
+ if( gob > 12 )
+ {
+ msg_Warn( p_dec, "invalid gob, buggy vic streamer?");
+ }
+ mba = (i_video_header >> 15) & 0x1f; /* Macroblock address predictor */
+ quant = (i_video_header >> 10) & 0x1f; /* quantizer */
+ mvdh = (i_video_header >> 5) & 0x1f; /* horizontal motion vector data */
+ mvdv = i_video_header & 0x1f; /* vertical motion vector data */
+ cc = p_block->i_buffer - 4;
+ msg_Dbg( p_dec, "packet size %d", cc );
+
+ /* Find out p_vdec->i_raw_size */
+ p_sys->p_decoder->decode( p_block->p_buffer + 4 /*bp?*/,
+ cc /*cc?*/,
+ sbit /*sbit?*/,
+ ebit /*ebit?*/,
+ mba /* mba?*/,
+ gob /* gob?*/,
+ quant /* quant?*/,
+ mvdh /* mvdh?*/,
+ mvdv /* mvdv?*/ );
+ i_width = p_sys->p_decoder->width();
+ i_height = p_sys->p_decoder->height();
+ if( !p_sys->b_inited )
+ {
+ msg_Dbg( p_dec, "video size is perhaps %dx%d", i_width,
+ i_height);
+ vout_InitFormat( &p_dec->fmt_out.video, VLC_FOURCC('I','4','2','0'),
+ i_width, i_height,
+ VOUT_ASPECT_FACTOR * i_width / i_height );
+ p_sys->b_inited = VLC_TRUE;
+ }
+ p_pic = NULL;
+ p_sys->i_counter++;
+// p_sys->p_decoder->sync();
+ if( p_block->i_flags & BLOCK_FLAG_END_OF_FRAME )
+ {
+ p_pic = p_dec->pf_vout_buffer_new( p_dec );
+ if( !p_pic )
+ {
+ block_Release( p_block );
+ return NULL;
+ }
+ p_sys->p_decoder->sync();
+ p_sys->i_counter = 0;
+ p_frame = p_sys->p_decoder->frame();
+ p_dec->p_vlc->pf_memcpy( p_pic->p[0].p_pixels, p_frame, i_width*i_height );
+ p_frame += i_width * i_height;
+ p_dec->p_vlc->pf_memcpy( p_pic->p[1].p_pixels, p_frame, i_width*i_height/4 );
+ p_frame += i_width * i_height/4;
+ p_dec->p_vlc->pf_memcpy( p_pic->p[2].p_pixels, p_frame, i_width*i_height/4 );
+ p_pic->date = p_sys->i_pts;
+ }
+ block_Release( p_block);
+ *pp_block = NULL;
+ return p_pic;
+// return NULL;
+}