*
**************************************************************************/
-#include <pipe/p_video_decoder.h>
-#include <util/u_memory.h>
+#include "pipe/p_video_decoder.h"
+#include "util/u_memory.h"
#include "vl_vlc.h"
#include "vl_mpeg12_bitstream.h"
int t;
for (t = 0; t < 2; ++t) {
int motion_code;
- int r_size = bs->desc.f_code[s][t];
+ int r_size = bs->desc->f_code[s][t];
vl_vlc_fillbits(&bs->vlc);
motion_code = vl_vlc_get_vlclbf(&bs->vlc, tbl_B10, 11);
if (mb->macroblock_modes.bits.frame_motion_type == PIPE_MPEG12_MO_TYPE_FIELD) {
mb->motion_vertical_field_select |= vl_vlc_get_uimsbf(&bs->vlc, 1) << s;
motion_vector(bs, 0, s, dmv, delta, dmvector);
- mb->PMV[0][s][0] = wrap(mb->PMV[0][s][0] + delta[0], bs->desc.f_code[s][0]);
- mb->PMV[0][s][1] = wrap(DIV2DOWN(mb->PMV[0][s][1]) + delta[1], bs->desc.f_code[s][1]) * 2;
+ mb->PMV[0][s][0] = wrap(mb->PMV[0][s][0] + delta[0], bs->desc->f_code[s][0]);
+ mb->PMV[0][s][1] = wrap(DIV2DOWN(mb->PMV[0][s][1]) + delta[1], bs->desc->f_code[s][1]) * 2;
mb->motion_vertical_field_select |= vl_vlc_get_uimsbf(&bs->vlc, 1) << (s + 2);
motion_vector(bs, 1, s, dmv, delta, dmvector);
- mb->PMV[1][s][0] = wrap(mb->PMV[1][s][0] + delta[0], bs->desc.f_code[s][0]);
- mb->PMV[1][s][1] = wrap(DIV2DOWN(mb->PMV[1][s][1]) + delta[1], bs->desc.f_code[s][1]) * 2;
+ mb->PMV[1][s][0] = wrap(mb->PMV[1][s][0] + delta[0], bs->desc->f_code[s][0]);
+ mb->PMV[1][s][1] = wrap(DIV2DOWN(mb->PMV[1][s][1]) + delta[1], bs->desc->f_code[s][1]) * 2;
} else {
motion_vector(bs, 0, s, dmv, delta, dmvector);
- mb->PMV[0][s][0] = wrap(mb->PMV[0][s][0] + delta[0], bs->desc.f_code[s][0]);
- mb->PMV[0][s][1] = wrap(mb->PMV[0][s][1] + delta[1], bs->desc.f_code[s][1]);
+ mb->PMV[0][s][0] = wrap(mb->PMV[0][s][0] + delta[0], bs->desc->f_code[s][0]);
+ mb->PMV[0][s][1] = wrap(mb->PMV[0][s][1] + delta[1], bs->desc->f_code[s][1]);
}
}
}
}
-static INLINE bool
-decode_slice(struct vl_mpg12_bs *bs)
+static INLINE void
+decode_slice(struct vl_mpg12_bs *bs, struct pipe_video_buffer *target)
{
struct pipe_mpeg12_macroblock mb;
short dct_blocks[64*6];
mb.blocks = dct_blocks;
reset_predictor(bs);
- dct_scale = quant_scale[bs->desc.q_scale_type][vl_vlc_get_uimsbf(&bs->vlc, 5)];
+ vl_vlc_fillbits(&bs->vlc);
+ dct_scale = quant_scale[bs->desc->q_scale_type][vl_vlc_get_uimsbf(&bs->vlc, 5)];
if (vl_vlc_get_uimsbf(&bs->vlc, 1))
while (vl_vlc_get_uimsbf(&bs->vlc, 9) & 1)
vl_vlc_fillbits(&bs->vlc);
vl_vlc_fillbits(&bs->vlc);
+ assert(vl_vlc_bits_left(&bs->vlc) > 23 && vl_vlc_peekbits(&bs->vlc, 23));
do {
int inc = 0;
- while (vl_vlc_peekbits(&bs->vlc, 11) == 15) {
- vl_vlc_eatbits(&bs->vlc, 11);
- vl_vlc_fillbits(&bs->vlc);
- }
+ if (bs->decoder->profile == PIPE_VIDEO_PROFILE_MPEG1)
+ while (vl_vlc_peekbits(&bs->vlc, 11) == 15) {
+ vl_vlc_eatbits(&bs->vlc, 11);
+ vl_vlc_fillbits(&bs->vlc);
+ }
while (vl_vlc_peekbits(&bs->vlc, 11) == 8) {
vl_vlc_eatbits(&bs->vlc, 11);
}
inc += vl_vlc_get_vlclbf(&bs->vlc, tbl_B1, 11);
if (x != -1) {
+ if (!inc)
+ return;
mb.num_skipped_macroblocks = inc - 1;
- bs->decoder->decode_macroblock(bs->decoder, &mb.base, 1);
+ bs->decoder->decode_macroblock(bs->decoder, target, &bs->desc->base, &mb.base, 1);
}
mb.x = x += inc;
- switch (bs->desc.picture_coding_type) {
+ switch (bs->desc->picture_coding_type) {
case PIPE_MPEG12_PICTURE_CODING_TYPE_I:
mb.macroblock_type = vl_vlc_get_vlclbf(&bs->vlc, tbl_B2, 2);
break;
mb.macroblock_modes.value = 0;
if (mb.macroblock_type & (PIPE_MPEG12_MB_TYPE_MOTION_FORWARD | PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD)) {
- if (bs->desc.picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME) {
- if (bs->desc.frame_pred_frame_dct == 0)
+ if (bs->desc->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME) {
+ if (bs->desc->frame_pred_frame_dct == 0)
mb.macroblock_modes.bits.frame_motion_type = vl_vlc_get_uimsbf(&bs->vlc, 2);
else
mb.macroblock_modes.bits.frame_motion_type = 2;
} else
mb.macroblock_modes.bits.field_motion_type = vl_vlc_get_uimsbf(&bs->vlc, 2);
- } else if ((mb.macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) && bs->desc.concealment_motion_vectors) {
- if (bs->desc.picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME)
+ } else if ((mb.macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) && bs->desc->concealment_motion_vectors) {
+ if (bs->desc->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME)
mb.macroblock_modes.bits.frame_motion_type = 2;
else
mb.macroblock_modes.bits.field_motion_type = 1;
}
- if (bs->desc.picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME &&
- bs->desc.frame_pred_frame_dct == 0 &&
+ if (bs->desc->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME &&
+ bs->desc->frame_pred_frame_dct == 0 &&
mb.macroblock_type & (PIPE_MPEG12_MB_TYPE_INTRA | PIPE_MPEG12_MB_TYPE_PATTERN))
mb.macroblock_modes.bits.dct_type = vl_vlc_get_uimsbf(&bs->vlc, 1);
if (mb.macroblock_type & PIPE_MPEG12_MB_TYPE_QUANT)
- dct_scale = quant_scale[bs->desc.q_scale_type][vl_vlc_get_uimsbf(&bs->vlc, 5)];
+ dct_scale = quant_scale[bs->desc->q_scale_type][vl_vlc_get_uimsbf(&bs->vlc, 5)];
- if (inc > 1 && bs->desc.picture_coding_type == PIPE_MPEG12_PICTURE_CODING_TYPE_P)
+ if (inc > 1 && bs->desc->picture_coding_type == PIPE_MPEG12_PICTURE_CODING_TYPE_P)
memset(mb.PMV, 0, sizeof(mb.PMV));
mb.motion_vertical_field_select = 0;
if ((mb.macroblock_type & PIPE_MPEG12_MB_TYPE_MOTION_FORWARD) ||
- (mb.macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA && bs->desc.concealment_motion_vectors)) {
- if (bs->desc.picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME)
+ (mb.macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA && bs->desc->concealment_motion_vectors)) {
+ if (bs->desc->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME)
motion_vector_frame(bs, 0, &mb);
else
motion_vector_field(bs, 0, &mb);
}
if (mb.macroblock_type & PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD) {
- if (bs->desc.picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME)
+ if (bs->desc->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME)
motion_vector_frame(bs, 1, &mb);
else
motion_vector_field(bs, 1, &mb);
}
- if (mb.macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA && bs->desc.concealment_motion_vectors) {
+ if (mb.macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA && bs->desc->concealment_motion_vectors) {
unsigned extra = vl_vlc_get_uimsbf(&bs->vlc, 1);
mb.PMV[1][0][0] = mb.PMV[0][0][0];
mb.PMV[1][0][1] = mb.PMV[0][0][1];
} while (vl_vlc_bits_left(&bs->vlc) && vl_vlc_peekbits(&bs->vlc, 23));
mb.num_skipped_macroblocks = 0;
- bs->decoder->decode_macroblock(bs->decoder, &mb.base, 1);
- return true;
+ bs->decoder->decode_macroblock(bs->decoder, target, &bs->desc->base, &mb.base, 1);
}
void
}
void
-vl_mpg12_bs_set_picture_desc(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc *picture)
-{
- bs->desc = *picture;
- bs->intra_dct_tbl = picture->intra_vlc_format ? tbl_B15 : tbl_B14_AC;
-}
-
-void
-vl_mpg12_bs_decode(struct vl_mpg12_bs *bs, unsigned num_bytes, const uint8_t *buffer)
+vl_mpg12_bs_decode(struct vl_mpg12_bs *bs,
+ struct pipe_video_buffer *target,
+ struct pipe_mpeg12_picture_desc *picture,
+ unsigned num_buffers,
+ const void * const *buffers,
+ const unsigned *sizes)
{
assert(bs);
- assert(buffer && num_bytes);
-
- while(num_bytes > 2) {
- if (buffer[0] == 0x00 && buffer[1] == 0x00 && buffer[2] == 0x01 &&
- buffer[3] >= 0x01 && buffer[3] < 0xAF) {
- unsigned consumed;
-
- buffer += 3;
- num_bytes -= 3;
-
- vl_vlc_init(&bs->vlc, buffer, num_bytes);
- if (!decode_slice(bs))
- return;
+ bs->desc = picture;
+ bs->intra_dct_tbl = picture->intra_vlc_format ? tbl_B15 : tbl_B14_AC;
- consumed = num_bytes - vl_vlc_bits_left(&bs->vlc) / 8;
+ vl_vlc_init(&bs->vlc, num_buffers, buffers, sizes);
+ while (vl_vlc_bits_left(&bs->vlc) > 32) {
+ uint32_t code = vl_vlc_peekbits(&bs->vlc, 32);
- /* crap, this is a bug we have consumed more bytes than left in the buffer */
- assert(consumed <= num_bytes);
+ if (code >= 0x101 && code <= 0x1AF) {
+ vl_vlc_eatbits(&bs->vlc, 24);
+ decode_slice(bs, target);
- num_bytes -= consumed;
- buffer += consumed;
+ /* align to a byte again */
+ vl_vlc_eatbits(&bs->vlc, vl_vlc_valid_bits(&bs->vlc) & 7);
} else {
- ++buffer;
- --num_bytes;
+ vl_vlc_eatbits(&bs->vlc, 8);
}
+
+ vl_vlc_fillbits(&bs->vlc);
}
}
projects / mesa.git / blobdiff