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/*
* Copyright (c) 2004 The Unichrome project. All rights reserved.
*
* 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, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTIES OR REPRESENTATIONS; 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.
*
*
*/
#include "xine_internal.h"
#include "video_out.h"
#include "mpeg2.h"
#include "mpeg2_internal.h"
#include "xvmc_vld.h"
static uint8_t zig_zag_scan[64] ATTR_ALIGN(16) =
{
/* Zig-Zag scan pattern */
0, 1, 8,16, 9, 2, 3,10,
17,24,32,25,18,11, 4, 5,
12,19,26,33,40,48,41,34,
27,20,13, 6, 7,14,21,28,
35,42,49,56,57,50,43,36,
29,22,15,23,30,37,44,51,
58,59,52,45,38,31,39,46,
53,60,61,54,47,55,62,63
};
static uint8_t alternate_scan [64] ATTR_ALIGN(16) =
{
/* Alternate scan pattern */
0,8,16,24,1,9,2,10,17,25,32,40,48,56,57,49,
41,33,26,18,3,11,4,12,19,27,34,42,50,58,35,43,
51,59,20,28,5,13,6,14,21,29,36,44,52,60,37,45,
53,61,22,30,7,15,23,31,38,46,54,62,39,47,55,63
};
void mpeg2_xxmc_choose_coding(mpeg2dec_t *mpeg2dec, picture_t *picture,
double aspect_ratio, int flags)
{
int
decoder_format = mpeg2dec->frame_format;
if (picture->current_frame) {
if (XINE_IMGFMT_XXMC == decoder_format) {
xine_xxmc_t *xxmc = (xine_xxmc_t *)
picture->current_frame->accel_data;
/*
* Make a request for acceleration type and mpeg coding from
* the output plugin.
*/
xxmc->fallback_format = XINE_IMGFMT_YV12;
xxmc->acceleration = XINE_XVMC_ACCEL_VLD| XINE_XVMC_ACCEL_IDCT
| XINE_XVMC_ACCEL_MOCOMP ;
/*
* Standard MOCOMP / IDCT XvMC implementation for interlaced streams
* is buggy. The bug is inherited from the old XvMC driver. Don't use it until
* it has been fixed. (A volunteer ?)
*/
if ( picture->picture_structure != 3 ) {
xxmc->acceleration &= ~( XINE_XVMC_ACCEL_IDCT | XINE_XVMC_ACCEL_MOCOMP );
}
xxmc->mpeg = (picture->mpeg1) ? XINE_XVMC_MPEG_1:XINE_XVMC_MPEG_2;
xxmc->proc_xxmc_update_frame (picture->current_frame->driver,
picture->current_frame,
picture->coded_picture_width,
picture->coded_picture_height,
aspect_ratio,
XINE_IMGFMT_XXMC,flags);
}
}
}
void mpeg2_xxmc_slice( mpeg2dec_t *mpeg2dec, picture_t *picture, int code,
uint8_t *buffer)
{
vo_frame_t
*frame = picture->current_frame;
xine_xxmc_t
*xxmc = (xine_xxmc_t *) frame->accel_data;
xine_vld_frame_t
*vft = &xxmc->vld_frame;
unsigned
mb_frame_height;
int
i;
const uint8_t *
scan_pattern;
float
ms_per_slice;
if (1 == code) {
frame->bad_frame = 1;
/*
* Check that first field went through OK. Otherwise,
* indicate bad frame.
*/
if (picture->second_field) {
mpeg2dec->xvmc_last_slice_code = (xxmc->decoded) ? 0 : -1;
xxmc->decoded = 0;
} else {
mpeg2dec->xvmc_last_slice_code = 0;
}
mb_frame_height =
(!(picture->mpeg1) && (picture->progressive_sequence)) ?
2*((picture->coded_picture_height+31) >> 5) :
(picture->coded_picture_height+15) >> 4;
mpeg2dec->xxmc_mb_pic_height = (picture->picture_structure == FRAME_PICTURE ) ?
mb_frame_height : mb_frame_height >> 1;
ms_per_slice = 1000. / (90000. * mb_frame_height) * frame->duration;
xxmc->sleep = 1. / (ms_per_slice * 0.45);
if (xxmc->sleep < 1.) xxmc->sleep = 1.;
if (picture->mpeg1) {
vft->mv_ranges[0][0] = picture->b_motion.f_code[0];
vft->mv_ranges[0][1] = picture->b_motion.f_code[0];
vft->mv_ranges[1][0] = picture->f_motion.f_code[0];
vft->mv_ranges[1][1] = picture->f_motion.f_code[0];
} else {
vft->mv_ranges[0][0] = picture->b_motion.f_code[0];
vft->mv_ranges[0][1] = picture->b_motion.f_code[1];
vft->mv_ranges[1][0] = picture->f_motion.f_code[0];
vft->mv_ranges[1][1] = picture->f_motion.f_code[1];
}
vft->picture_structure = picture->picture_structure;
vft->picture_coding_type = picture->picture_coding_type;
vft->mpeg_coding = (picture->mpeg1) ? 0 : 1;
vft->progressive_sequence = picture->progressive_sequence;
vft->scan = (picture->scan == mpeg2_scan_alt);
vft->pred_dct_frame = picture->frame_pred_frame_dct;
vft->concealment_motion_vectors =
picture->concealment_motion_vectors;
vft->q_scale_type = picture->q_scale_type;
vft->intra_vlc_format = picture->intra_vlc_format;
vft->intra_dc_precision = picture->intra_dc_precision;
vft->second_field = picture->second_field;
/*
* Translation of libmpeg2's Q-matrix layout to VLD XvMC's.
* Errors here will give
* blocky artifacts and sometimes wrong colors.
*/
scan_pattern = (vft->scan) ? alternate_scan : zig_zag_scan;
if ((vft->load_intra_quantizer_matrix = picture->load_intra_quantizer_matrix)) {
for (i=0; i<64; ++i) {
vft->intra_quantizer_matrix[scan_pattern[i]] =
picture->intra_quantizer_matrix[picture->scan[i]];
}
}
if ((vft->load_non_intra_quantizer_matrix = picture->load_non_intra_quantizer_matrix)) {
for (i=0; i<64; ++i) {
vft->non_intra_quantizer_matrix[scan_pattern[i]] =
picture->non_intra_quantizer_matrix[picture->scan[i]];
}
}
picture->load_intra_quantizer_matrix = 0;
picture->load_non_intra_quantizer_matrix = 0;
vft->forward_reference_frame = picture->forward_reference_frame;
vft->backward_reference_frame = picture->backward_reference_frame;
xxmc->proc_xxmc_begin( frame );
if (xxmc->result != 0) {
xxmc->proc_xxmc_flush( frame );
mpeg2dec->xvmc_last_slice_code=-1;
}
}
if ((code == mpeg2dec->xvmc_last_slice_code + 1) &&
code <= mpeg2dec->xxmc_mb_pic_height) {
/*
* Send this slice to the output plugin. May stall for a long
* time in proc_slice;
*/
frame->bad_frame = 1;
xxmc->slice_data_size = mpeg2dec->chunk_size;
xxmc->slice_data = mpeg2dec->chunk_buffer;
xxmc->slice_code = code;
xxmc->proc_xxmc_slice( frame );
if (xxmc->result != 0) {
xxmc->proc_xxmc_flush( frame );
mpeg2dec->xvmc_last_slice_code=-1;
return;
}
if (code == mpeg2dec->xxmc_mb_pic_height) {
/*
* We've encountered the last slice of this frame.
* Release the decoder for a new frame and, if all
* went well, tell libmpeg2 that we are ready.
*/
mpeg2_xxmc_vld_frame_complete(mpeg2dec,picture,code);
return;
} else {
/*
* Keep track of slices.
*/
mpeg2dec->xvmc_last_slice_code++;
}
} else {
/*
* An error has occured.
*/
lprintf("libmpeg2: VLD XvMC: Slice error.\n");
mpeg2dec->xvmc_last_slice_code = -1;
xxmc->proc_xxmc_flush( frame );
return;
}
}
void mpeg2_xxmc_vld_frame_complete(mpeg2dec_t *mpeg2dec, picture_t *picture, int code)
{
vo_frame_t
*frame = picture->current_frame;
xine_xxmc_t
*xxmc = (xine_xxmc_t *) frame->accel_data;
if (xxmc->decoded) return;
if (mpeg2dec->xvmc_last_slice_code >= 1) {
xxmc->proc_xxmc_flush( frame );
if (xxmc->result) {
mpeg2dec->xvmc_last_slice_code=-1;
return;
}
xxmc->decoded = 1;
mpeg2dec->xvmc_last_slice_code++;
if (picture->picture_structure == 3 || picture->second_field) {
if (xxmc->result == 0)
frame->bad_frame = 0;
}
}
}
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