mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-06-29 04:17:06 +08:00
Cosmetics: reindent
Originally committed as revision 15505 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
258
libavcodec/vp3.c
258
libavcodec/vp3.c
@ -814,152 +814,152 @@ static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)
|
|||||||
if (s->keyframe)
|
if (s->keyframe)
|
||||||
return 0;
|
return 0;
|
||||||
|
|
||||||
memset(motion_x, 0, 6 * sizeof(int));
|
memset(motion_x, 0, 6 * sizeof(int));
|
||||||
memset(motion_y, 0, 6 * sizeof(int));
|
memset(motion_y, 0, 6 * sizeof(int));
|
||||||
|
|
||||||
/* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
|
/* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
|
||||||
coding_mode = get_bits1(gb);
|
coding_mode = get_bits1(gb);
|
||||||
|
|
||||||
/* iterate through all of the macroblocks that contain 1 or more
|
/* iterate through all of the macroblocks that contain 1 or more
|
||||||
* coded fragments */
|
* coded fragments */
|
||||||
for (i = 0; i < s->u_superblock_start; i++) {
|
for (i = 0; i < s->u_superblock_start; i++) {
|
||||||
|
|
||||||
for (j = 0; j < 4; j++) {
|
for (j = 0; j < 4; j++) {
|
||||||
current_macroblock = s->superblock_macroblocks[i * 4 + j];
|
current_macroblock = s->superblock_macroblocks[i * 4 + j];
|
||||||
if ((current_macroblock == -1) ||
|
if ((current_macroblock == -1) ||
|
||||||
(s->macroblock_coding[current_macroblock] == MODE_COPY))
|
(s->macroblock_coding[current_macroblock] == MODE_COPY))
|
||||||
continue;
|
continue;
|
||||||
if (current_macroblock >= s->macroblock_count) {
|
if (current_macroblock >= s->macroblock_count) {
|
||||||
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad macroblock number (%d >= %d)\n",
|
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad macroblock number (%d >= %d)\n",
|
||||||
current_macroblock, s->macroblock_count);
|
current_macroblock, s->macroblock_count);
|
||||||
return 1;
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
current_fragment = s->macroblock_fragments[current_macroblock * 6];
|
||||||
|
if (current_fragment >= s->fragment_count) {
|
||||||
|
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d\n",
|
||||||
|
current_fragment, s->fragment_count);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
switch (s->macroblock_coding[current_macroblock]) {
|
||||||
|
|
||||||
|
case MODE_INTER_PLUS_MV:
|
||||||
|
case MODE_GOLDEN_MV:
|
||||||
|
/* all 6 fragments use the same motion vector */
|
||||||
|
if (coding_mode == 0) {
|
||||||
|
motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
||||||
|
motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
||||||
|
} else {
|
||||||
|
motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
|
||||||
|
motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
|
||||||
}
|
}
|
||||||
|
|
||||||
current_fragment = s->macroblock_fragments[current_macroblock * 6];
|
for (k = 1; k < 6; k++) {
|
||||||
if (current_fragment >= s->fragment_count) {
|
motion_x[k] = motion_x[0];
|
||||||
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d\n",
|
motion_y[k] = motion_y[0];
|
||||||
current_fragment, s->fragment_count);
|
|
||||||
return 1;
|
|
||||||
}
|
}
|
||||||
switch (s->macroblock_coding[current_macroblock]) {
|
|
||||||
|
|
||||||
case MODE_INTER_PLUS_MV:
|
/* vector maintenance, only on MODE_INTER_PLUS_MV */
|
||||||
case MODE_GOLDEN_MV:
|
if (s->macroblock_coding[current_macroblock] ==
|
||||||
/* all 6 fragments use the same motion vector */
|
MODE_INTER_PLUS_MV) {
|
||||||
if (coding_mode == 0) {
|
|
||||||
motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
||||||
motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
||||||
} else {
|
|
||||||
motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
|
|
||||||
motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
|
|
||||||
}
|
|
||||||
|
|
||||||
for (k = 1; k < 6; k++) {
|
|
||||||
motion_x[k] = motion_x[0];
|
|
||||||
motion_y[k] = motion_y[0];
|
|
||||||
}
|
|
||||||
|
|
||||||
/* vector maintenance, only on MODE_INTER_PLUS_MV */
|
|
||||||
if (s->macroblock_coding[current_macroblock] ==
|
|
||||||
MODE_INTER_PLUS_MV) {
|
|
||||||
prior_last_motion_x = last_motion_x;
|
|
||||||
prior_last_motion_y = last_motion_y;
|
|
||||||
last_motion_x = motion_x[0];
|
|
||||||
last_motion_y = motion_y[0];
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case MODE_INTER_FOURMV:
|
|
||||||
/* vector maintenance */
|
|
||||||
prior_last_motion_x = last_motion_x;
|
|
||||||
prior_last_motion_y = last_motion_y;
|
|
||||||
|
|
||||||
/* fetch 4 vectors from the bitstream, one for each
|
|
||||||
* Y fragment, then average for the C fragment vectors */
|
|
||||||
motion_x[4] = motion_y[4] = 0;
|
|
||||||
for (k = 0; k < 4; k++) {
|
|
||||||
for (l = 0; l < s->coded_fragment_list_index; l++)
|
|
||||||
if (s->coded_fragment_list[l] == s->macroblock_fragments[6*current_macroblock + k])
|
|
||||||
break;
|
|
||||||
if (l < s->coded_fragment_list_index) {
|
|
||||||
if (coding_mode == 0) {
|
|
||||||
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
||||||
motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
|
||||||
} else {
|
|
||||||
motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
|
|
||||||
motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
|
|
||||||
}
|
|
||||||
last_motion_x = motion_x[k];
|
|
||||||
last_motion_y = motion_y[k];
|
|
||||||
} else {
|
|
||||||
motion_x[k] = 0;
|
|
||||||
motion_y[k] = 0;
|
|
||||||
}
|
|
||||||
motion_x[4] += motion_x[k];
|
|
||||||
motion_y[4] += motion_y[k];
|
|
||||||
}
|
|
||||||
|
|
||||||
motion_x[5]=
|
|
||||||
motion_x[4]= RSHIFT(motion_x[4], 2);
|
|
||||||
motion_y[5]=
|
|
||||||
motion_y[4]= RSHIFT(motion_y[4], 2);
|
|
||||||
break;
|
|
||||||
|
|
||||||
case MODE_INTER_LAST_MV:
|
|
||||||
/* all 6 fragments use the last motion vector */
|
|
||||||
motion_x[0] = last_motion_x;
|
|
||||||
motion_y[0] = last_motion_y;
|
|
||||||
for (k = 1; k < 6; k++) {
|
|
||||||
motion_x[k] = motion_x[0];
|
|
||||||
motion_y[k] = motion_y[0];
|
|
||||||
}
|
|
||||||
|
|
||||||
/* no vector maintenance (last vector remains the
|
|
||||||
* last vector) */
|
|
||||||
break;
|
|
||||||
|
|
||||||
case MODE_INTER_PRIOR_LAST:
|
|
||||||
/* all 6 fragments use the motion vector prior to the
|
|
||||||
* last motion vector */
|
|
||||||
motion_x[0] = prior_last_motion_x;
|
|
||||||
motion_y[0] = prior_last_motion_y;
|
|
||||||
for (k = 1; k < 6; k++) {
|
|
||||||
motion_x[k] = motion_x[0];
|
|
||||||
motion_y[k] = motion_y[0];
|
|
||||||
}
|
|
||||||
|
|
||||||
/* vector maintenance */
|
|
||||||
prior_last_motion_x = last_motion_x;
|
prior_last_motion_x = last_motion_x;
|
||||||
prior_last_motion_y = last_motion_y;
|
prior_last_motion_y = last_motion_y;
|
||||||
last_motion_x = motion_x[0];
|
last_motion_x = motion_x[0];
|
||||||
last_motion_y = motion_y[0];
|
last_motion_y = motion_y[0];
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
/* covers intra, inter without MV, golden without MV */
|
|
||||||
memset(motion_x, 0, 6 * sizeof(int));
|
|
||||||
memset(motion_y, 0, 6 * sizeof(int));
|
|
||||||
|
|
||||||
/* no vector maintenance */
|
|
||||||
break;
|
|
||||||
}
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
/* assign the motion vectors to the correct fragments */
|
case MODE_INTER_FOURMV:
|
||||||
for (k = 0; k < 6; k++) {
|
/* vector maintenance */
|
||||||
current_fragment =
|
prior_last_motion_x = last_motion_x;
|
||||||
s->macroblock_fragments[current_macroblock * 6 + k];
|
prior_last_motion_y = last_motion_y;
|
||||||
if (current_fragment == -1)
|
|
||||||
continue;
|
/* fetch 4 vectors from the bitstream, one for each
|
||||||
if (current_fragment >= s->fragment_count) {
|
* Y fragment, then average for the C fragment vectors */
|
||||||
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d)\n",
|
motion_x[4] = motion_y[4] = 0;
|
||||||
current_fragment, s->fragment_count);
|
for (k = 0; k < 4; k++) {
|
||||||
return 1;
|
for (l = 0; l < s->coded_fragment_list_index; l++)
|
||||||
|
if (s->coded_fragment_list[l] == s->macroblock_fragments[6*current_macroblock + k])
|
||||||
|
break;
|
||||||
|
if (l < s->coded_fragment_list_index) {
|
||||||
|
if (coding_mode == 0) {
|
||||||
|
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
||||||
|
motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
|
||||||
|
} else {
|
||||||
|
motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
|
||||||
|
motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
|
||||||
|
}
|
||||||
|
last_motion_x = motion_x[k];
|
||||||
|
last_motion_y = motion_y[k];
|
||||||
|
} else {
|
||||||
|
motion_x[k] = 0;
|
||||||
|
motion_y[k] = 0;
|
||||||
}
|
}
|
||||||
s->all_fragments[current_fragment].motion_x = motion_x[k];
|
motion_x[4] += motion_x[k];
|
||||||
s->all_fragments[current_fragment].motion_y = motion_y[k];
|
motion_y[4] += motion_y[k];
|
||||||
}
|
}
|
||||||
|
|
||||||
|
motion_x[5]=
|
||||||
|
motion_x[4]= RSHIFT(motion_x[4], 2);
|
||||||
|
motion_y[5]=
|
||||||
|
motion_y[4]= RSHIFT(motion_y[4], 2);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MODE_INTER_LAST_MV:
|
||||||
|
/* all 6 fragments use the last motion vector */
|
||||||
|
motion_x[0] = last_motion_x;
|
||||||
|
motion_y[0] = last_motion_y;
|
||||||
|
for (k = 1; k < 6; k++) {
|
||||||
|
motion_x[k] = motion_x[0];
|
||||||
|
motion_y[k] = motion_y[0];
|
||||||
|
}
|
||||||
|
|
||||||
|
/* no vector maintenance (last vector remains the
|
||||||
|
* last vector) */
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MODE_INTER_PRIOR_LAST:
|
||||||
|
/* all 6 fragments use the motion vector prior to the
|
||||||
|
* last motion vector */
|
||||||
|
motion_x[0] = prior_last_motion_x;
|
||||||
|
motion_y[0] = prior_last_motion_y;
|
||||||
|
for (k = 1; k < 6; k++) {
|
||||||
|
motion_x[k] = motion_x[0];
|
||||||
|
motion_y[k] = motion_y[0];
|
||||||
|
}
|
||||||
|
|
||||||
|
/* vector maintenance */
|
||||||
|
prior_last_motion_x = last_motion_x;
|
||||||
|
prior_last_motion_y = last_motion_y;
|
||||||
|
last_motion_x = motion_x[0];
|
||||||
|
last_motion_y = motion_y[0];
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
/* covers intra, inter without MV, golden without MV */
|
||||||
|
memset(motion_x, 0, 6 * sizeof(int));
|
||||||
|
memset(motion_y, 0, 6 * sizeof(int));
|
||||||
|
|
||||||
|
/* no vector maintenance */
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* assign the motion vectors to the correct fragments */
|
||||||
|
for (k = 0; k < 6; k++) {
|
||||||
|
current_fragment =
|
||||||
|
s->macroblock_fragments[current_macroblock * 6 + k];
|
||||||
|
if (current_fragment == -1)
|
||||||
|
continue;
|
||||||
|
if (current_fragment >= s->fragment_count) {
|
||||||
|
av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_vectors(): bad fragment number (%d >= %d)\n",
|
||||||
|
current_fragment, s->fragment_count);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
s->all_fragments[current_fragment].motion_x = motion_x[k];
|
||||||
|
s->all_fragments[current_fragment].motion_y = motion_y[k];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
Reference in New Issue
Block a user