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avcodec/mpegvideo_motion: Remove dead checks for existence of reference

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These references now always exist due to dummy frames.
Also remove the corresponding checks in the lowres code
in mpegvideo_dec.c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
release/7.1
Andreas Rheinhardt 9 months ago
parent c85508f5a9
commit f44d212e0e
2 changed files with 8 additions and 16 deletions
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  1. 12
      libavcodec/mpegvideo_dec.c
  2. 12
      libavcodec/mpegvideo_motion.c

12
libavcodec/mpegvideo_dec.c
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@ -862,8 +862,8 @@ static inline void MPV_motion_lowres(MpegEncContext *s,
s->mv[dir][1][0], s->mv[dir][1][1],
block_s, mb_y);
} else {
if ( s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != AV_PICTURE_TYPE_B && !s->first_field
|| !ref_picture[0]) {
if (s->picture_structure != s->field_select[dir][0] + 1 &&
s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
ref_picture = s->current_picture_ptr->f->data;
}
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
@ -877,9 +877,8 @@ static inline void MPV_motion_lowres(MpegEncContext *s,
for (int i = 0; i < 2; i++) {
uint8_t *const *ref2picture;
if ((s->picture_structure == s->field_select[dir][i] + 1 ||
s->pict_type == AV_PICTURE_TYPE_B || s->first_field) &&
ref_picture[0]) {
if (s->picture_structure == s->field_select[dir][i] + 1 ||
s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
ref2picture = ref_picture;
} else {
ref2picture = s->current_picture_ptr->f->data;
@ -910,9 +909,6 @@ static inline void MPV_motion_lowres(MpegEncContext *s,
pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
}
} else {
if (!ref_picture[0]) {
ref_picture = s->current_picture_ptr->f->data;
}
for (int i = 0; i < 2; i++) {
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
0, 0, s->picture_structure != i + 1,

12
libavcodec/mpegvideo_motion.c
Unescape View File

@ -739,8 +739,8 @@ 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
|| !ref_picture[0]) {
if (s->picture_structure != s->field_select[dir][0] + 1 &&
s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
ref_picture = s->current_picture_ptr->f->data;
}
@ -755,9 +755,8 @@ static av_always_inline void mpv_motion_internal(MpegEncContext *s,
for (i = 0; i < 2; i++) {
uint8_t *const *ref2picture;
if ((s->picture_structure == s->field_select[dir][i] + 1 ||
s->pict_type == AV_PICTURE_TYPE_B || s->first_field) &&
ref_picture[0]) {
if (s->picture_structure == s->field_select[dir][i] + 1 ||
s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
ref2picture = ref_picture;
} else {
ref2picture = s->current_picture_ptr->f->data;
@ -787,9 +786,6 @@ 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,

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