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Diffstat (limited to 'src/video_dec/libmpeg2/libmpeg2_accel.c')
-rw-r--r--src/video_dec/libmpeg2/libmpeg2_accel.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/src/video_dec/libmpeg2/libmpeg2_accel.c b/src/video_dec/libmpeg2/libmpeg2_accel.c
new file mode 100644
index 000000000..92c0e280b
--- /dev/null
+++ b/src/video_dec/libmpeg2/libmpeg2_accel.c
@@ -0,0 +1,223 @@
+/*
+ * libmpeg2_accel.c
+ * Copyright (C) 2004 The Unichrome Project.
+ * Copyright (C) 2005 Thomas Hellstrom.
+ *
+ * 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
+ */
+
+#include <xine/xine_internal.h>
+#include "mpeg2.h"
+#include "mpeg2_internal.h"
+#include "xvmc_vld.h"
+#include "libmpeg2_accel.h"
+
+
+void
+libmpeg2_accel_scan( mpeg2dec_accel_t *accel, uint8_t *scan_norm, uint8_t *scan_alt)
+{
+ xvmc_setup_scan_ptable();
+}
+
+
+int
+libmpeg2_accel_discontinuity(mpeg2dec_accel_t *accel, uint32_t frame_format, picture_t *picture)
+{
+ accel->xvmc_last_slice_code=-1;
+ if ( !picture->current_frame )
+ return 0;
+ if (frame_format == XINE_IMGFMT_XXMC) {
+ xine_xxmc_t *xxmc = (xine_xxmc_t *)
+ picture->current_frame->accel_data;
+ switch(xxmc->acceleration) {
+ case XINE_XVMC_ACCEL_VLD:
+ case XINE_XVMC_ACCEL_IDCT:
+ case XINE_XVMC_ACCEL_MOCOMP:
+ xxmc->proc_xxmc_flush( picture->current_frame );
+ break;
+ default:
+ break;
+ }
+ }
+ return 0;
+}
+
+int
+libmpeg2_accel_new_sequence(mpeg2dec_accel_t *accel, uint32_t frame_format, picture_t *picture)
+{
+ switch(frame_format) {
+ case XINE_IMGFMT_XXMC:
+ case XINE_IMGFMT_XVMC: {
+ xine_xvmc_t *xvmc = (xine_xvmc_t *)
+ picture->current_frame->accel_data;
+ picture->mc = xvmc->macroblocks;
+ return 0;
+ }
+ default:
+ break;
+ }
+ return 1;
+}
+
+int
+libmpeg2_accel_new_frame(mpeg2dec_accel_t *accel, uint32_t frame_format,
+ picture_t *picture, double ratio, uint32_t flags)
+{
+ if (picture->current_frame) {
+ if (XINE_IMGFMT_XXMC == frame_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 ) {
+ picture->top_field_first = (picture->picture_structure == 1);
+ 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,
+ ratio,
+ XINE_IMGFMT_XXMC, flags);
+ }
+ }
+ return 0;
+}
+
+void
+libmpeg2_accel_frame_completion(mpeg2dec_accel_t * accel, uint32_t frame_format, picture_t *picture,
+ int code)
+{
+
+ if ( !picture->current_frame ) return;
+
+ if (frame_format == XINE_IMGFMT_XXMC) {
+ xine_xxmc_t *xxmc = (xine_xxmc_t *)
+ picture->current_frame->accel_data;
+ if (!xxmc->decoded) {
+ switch(picture->current_frame->format) {
+ case XINE_IMGFMT_XXMC:
+ switch(xxmc->acceleration) {
+ case XINE_XVMC_ACCEL_VLD:
+ mpeg2_xxmc_vld_frame_complete(accel, picture, code);
+ break;
+ case XINE_XVMC_ACCEL_IDCT:
+ case XINE_XVMC_ACCEL_MOCOMP:
+ xxmc->decoded = !picture->current_frame->bad_frame;
+ xxmc->proc_xxmc_flush( picture->current_frame );
+ break;
+ default:
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ }
+}
+
+
+int
+libmpeg2_accel_slice(mpeg2dec_accel_t *accel, picture_t *picture, int code, char * buffer,
+ uint32_t chunk_size, uint8_t *chunk_buffer)
+{
+ /*
+ * Don't reference frames of other formats. They are invalid. This may happen if the
+ * xxmc plugin suddenly falls back to software decoding.
+ */
+
+ if (( picture->current_frame->picture_coding_type == XINE_PICT_P_TYPE ) ||
+ ( picture->current_frame->picture_coding_type == XINE_PICT_B_TYPE )) {
+ if (! picture->forward_reference_frame) return 1;
+ if (picture->forward_reference_frame->format != picture->current_frame->format) {
+ picture->v_offset = 0;
+ return 1;
+ }
+ }
+
+ if ( picture->current_frame->picture_coding_type == XINE_PICT_B_TYPE ) {
+ if (! picture->backward_reference_frame) return 1;
+ if (picture->backward_reference_frame->format != picture->current_frame->format) {
+ picture->v_offset = 0;
+ return 1;
+ }
+ }
+
+ switch( picture->current_frame->format ) {
+
+ case XINE_IMGFMT_XXMC:
+ {
+ xine_xxmc_t *xxmc = (xine_xxmc_t *)
+ picture->current_frame->accel_data;
+
+ if ( xxmc->proc_xxmc_lock_valid( picture->current_frame,
+ picture->forward_reference_frame,
+ picture->backward_reference_frame,
+ picture->current_frame->picture_coding_type)) {
+ picture->v_offset = 0;
+ return 1;
+ }
+
+ switch(picture->current_frame->format) {
+ case XINE_IMGFMT_XXMC:
+ switch(xxmc->acceleration) {
+ case XINE_XVMC_ACCEL_VLD:
+ mpeg2_xxmc_slice(accel, picture, code, buffer, chunk_size, chunk_buffer);
+ break;
+ case XINE_XVMC_ACCEL_IDCT:
+ case XINE_XVMC_ACCEL_MOCOMP:
+ mpeg2_xvmc_slice (accel, picture, code, buffer);
+ break;
+ default:
+ mpeg2_slice (picture, code, buffer);
+ break;
+ }
+ break;
+ default:
+ mpeg2_slice (picture, code, buffer);
+ break;
+ }
+ xxmc->proc_xxmc_unlock(picture->current_frame->driver);
+ break;
+ }
+
+ case XINE_IMGFMT_XVMC:
+ mpeg2_xvmc_slice (accel, picture, code, buffer);
+ break;
+
+ default:
+ mpeg2_slice (picture, code, buffer);
+ break;
+ }
+ return 0;
+}
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