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Diffstat (limited to 'libavcodec/mpegvideo_motion.c')
-rw-r--r--libavcodec/mpegvideo_motion.c88
1 files changed, 47 insertions, 41 deletions
diff --git a/libavcodec/mpegvideo_motion.c b/libavcodec/mpegvideo_motion.c
index 05375a1afa..51ba435231 100644
--- a/libavcodec/mpegvideo_motion.c
+++ b/libavcodec/mpegvideo_motion.c
@@ -4,25 +4,26 @@
*
* 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
+#include "libavutil/avassert.h"
#include "libavutil/internal.h"
#include "avcodec.h"
#include "h261.h"
@@ -178,7 +179,7 @@ static void gmc_motion(MpegEncContext *s,
s->sprite_delta[0][0], s->sprite_delta[0][1],
s->sprite_delta[1][0], s->sprite_delta[1][1],
a + 1, (1 << (2 * a + 1)) - s->no_rounding,
- s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+ (s->h_edge_pos + 1) >> 1, (s->v_edge_pos + 1) >> 1);
ptr = ref_picture[2];
s->mdsp.gmc(dest_cr, ptr, uvlinesize, 8,
@@ -186,7 +187,7 @@ static void gmc_motion(MpegEncContext *s,
s->sprite_delta[0][0], s->sprite_delta[0][1],
s->sprite_delta[1][0], s->sprite_delta[1][1],
a + 1, (1 << (2 * a + 1)) - s->no_rounding,
- s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+ (s->h_edge_pos + 1) >> 1, (s->v_edge_pos + 1) >> 1);
}
static inline int hpel_motion(MpegEncContext *s,
@@ -210,18 +211,16 @@ static inline int hpel_motion(MpegEncContext *s,
dxy |= (motion_y & 1) << 1;
src += src_y * s->linesize + src_x;
- if (s->unrestricted_mv) {
- if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 8, 0) ||
- (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 1) - 8, 0)) {
+ if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 1) - 7, 0) ||
+ (unsigned)src_y >= FFMAX(s->v_edge_pos - (motion_y & 1) - 7, 0)) {
s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
s->linesize, s->linesize,
9, 9,
- src_x, src_y, s->h_edge_pos,
- s->v_edge_pos);
+ src_x, src_y,
+ s->h_edge_pos, s->v_edge_pos);
src = s->sc.edge_emu_buffer;
emu = 1;
}
- }
pix_op[dxy](dest, src, s->linesize, 8);
return emu;
}
@@ -308,8 +307,8 @@ void mpeg_motion_internal(MpegEncContext *s,
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
- if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 16, 0) ||
- (unsigned)src_y > FFMAX(v_edge_pos - (motion_y & 1) - h, 0)) {
+ if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 1) - 15 , 0) ||
+ (unsigned)src_y >= FFMAX( v_edge_pos - (motion_y & 1) - h + 1, 0)) {
if (is_mpeg12 ||
s->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
s->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
@@ -318,26 +317,29 @@ void mpeg_motion_internal(MpegEncContext *s,
src_y);
return;
}
+ src_y = (unsigned)src_y << field_based;
s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
s->linesize, s->linesize,
17, 17 + field_based,
- src_x, src_y << field_based,
+ src_x, src_y,
s->h_edge_pos, s->v_edge_pos);
ptr_y = s->sc.edge_emu_buffer;
if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
- uint8_t *uvbuf = s->sc.edge_emu_buffer + 18 * s->linesize;
- s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
+ uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
+ uint8_t *vbuf = ubuf + 9 * s->uvlinesize;
+ uvsrc_y = (unsigned)uvsrc_y << field_based;
+ s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
- uvsrc_x, uvsrc_y << field_based,
+ uvsrc_x, uvsrc_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
+ s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
- uvsrc_x, uvsrc_y << field_based,
+ uvsrc_x, uvsrc_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ptr_cb = uvbuf;
- ptr_cr = uvbuf + 16;
+ ptr_cb = ubuf;
+ ptr_cr = vbuf;
}
}
@@ -395,7 +397,7 @@ static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y,
int motion_x, int motion_y, int h, int mb_y)
{
#if !CONFIG_SMALL
- if(s->out_format == FMT_MPEG1)
+ if (s->out_format == FMT_MPEG1)
mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
bottom_field, field_select, ref_picture, pix_op,
motion_x, motion_y, h, 1, mb_y);
@@ -470,7 +472,7 @@ static inline void obmc_motion(MpegEncContext *s,
int i;
uint8_t *ptr[5];
- assert(s->quarter_sample == 0);
+ av_assert2(s->quarter_sample == 0);
for (i = 0; i < 5; i++) {
if (i && mv[i][0] == mv[MID][0] && mv[i][1] == mv[MID][1]) {
@@ -537,8 +539,8 @@ static inline void qpel_motion(MpegEncContext *s,
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
- if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 3) - 16, 0) ||
- (unsigned)src_y > FFMAX(v_edge_pos - (motion_y & 3) - h, 0)) {
+ if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 3) - 15 , 0) ||
+ (unsigned)src_y >= FFMAX( v_edge_pos - (motion_y & 3) - h + 1, 0)) {
s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
s->linesize, s->linesize,
17, 17 + field_based,
@@ -546,19 +548,20 @@ static inline void qpel_motion(MpegEncContext *s,
s->h_edge_pos, s->v_edge_pos);
ptr_y = s->sc.edge_emu_buffer;
if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
- uint8_t *uvbuf = s->sc.edge_emu_buffer + 18 * s->linesize;
- s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
+ uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
+ uint8_t *vbuf = ubuf + 9 * s->uvlinesize;
+ s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
uvsrc_x, uvsrc_y << field_based,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
+ s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
uvsrc_x, uvsrc_y << field_based,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ptr_cb = uvbuf;
- ptr_cr = uvbuf + 16;
+ ptr_cb = ubuf;
+ ptr_cr = vbuf;
}
}
@@ -620,8 +623,8 @@ static void chroma_4mv_motion(MpegEncContext *s,
offset = src_y * s->uvlinesize + src_x;
ptr = ref_picture[1] + offset;
- if ((unsigned)src_x > FFMAX((s->h_edge_pos >> 1) - (dxy & 1) - 8, 0) ||
- (unsigned)src_y > FFMAX((s->v_edge_pos >> 1) - (dxy >> 1) - 8, 0)) {
+ if ((unsigned)src_x >= FFMAX((s->h_edge_pos >> 1) - (dxy & 1) - 7, 0) ||
+ (unsigned)src_y >= FFMAX((s->v_edge_pos >> 1) - (dxy >> 1) - 7, 0)) {
s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
s->uvlinesize, s->uvlinesize,
9, 9, src_x, src_y,
@@ -672,7 +675,7 @@ static inline void apply_obmc(MpegEncContext *s,
const int mot_xy = mb_x * 2 + mb_y * 2 * mot_stride;
int mx, my, i;
- assert(!s->mb_skipped);
+ av_assert2(!s->mb_skipped);
AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy]);
AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
@@ -778,8 +781,8 @@ static inline void apply_8x8(MpegEncContext *s,
dxy &= ~12;
ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
- if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 3) - 8, 0) ||
- (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 3) - 8, 0)) {
+ if ((unsigned)src_x >= FFMAX(s->h_edge_pos - (motion_x & 3) - 7, 0) ||
+ (unsigned)src_y >= FFMAX(s->v_edge_pos - (motion_y & 3) - 7, 0)) {
s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
s->linesize, s->linesize,
9, 9,
@@ -899,8 +902,8 @@ static av_always_inline void mpv_motion_internal(MpegEncContext *s,
s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y);
}
} else {
- if (s->picture_structure != s->field_select[dir][0] + 1 &&
- s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
+ if ( s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != AV_PICTURE_TYPE_B && !s->first_field
+ || !ref_picture[0]) {
ref_picture = s->current_picture_ptr->f->data;
}
@@ -914,8 +917,8 @@ static av_always_inline void mpv_motion_internal(MpegEncContext *s,
for (i = 0; i < 2; i++) {
uint8_t **ref2picture;
- if (s->picture_structure == s->field_select[dir][i] + 1
- || s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
+ if ((s->picture_structure == s->field_select[dir][i] + 1
+ || s->pict_type == AV_PICTURE_TYPE_B || s->first_field) && ref_picture[0]) {
ref2picture = ref_picture;
} else {
ref2picture = s->current_picture_ptr->f->data;
@@ -944,6 +947,9 @@ static av_always_inline void mpv_motion_internal(MpegEncContext *s,
pix_op = s->hdsp.avg_pixels_tab;
}
} else {
+ if (!ref_picture[0]) {
+ ref_picture = s->current_picture_ptr->f->data;
+ }
for (i = 0; i < 2; i++) {
mpeg_motion(s, dest_y, dest_cb, dest_cr,
s->picture_structure != i + 1,
@@ -962,7 +968,7 @@ static av_always_inline void mpv_motion_internal(MpegEncContext *s,
}
}
break;
- default: assert(0);
+ default: av_assert2(0);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-10 21:57:35 +0300