The slice contexts don't have sub-slice contexts, so it makes
no sense for them to have an array of pointers to slice contexts.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/mjpegenc.c | 2 +-
libavcodec/mpeg12dec.c | 12 ++++++------
libavcodec/mpegvideo.c | 21 ++++++++++-----------
libavcodec/mpegvideo.h | 3 ++-
libavcodec/mpegvideo_dec.c | 11 ++++++-----
libavcodec/mpegvideo_enc.c | 29 +++++++++++++++--------------
6 files changed, 40 insertions(+), 38 deletions(-)
diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index faf59566b1..70636ffc91 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -86,7 +86,7 @@ static void mjpeg_encode_picture_header(MPVMainEncContext *m)
s->esc_pos = put_bytes_count(&s->pb, 0);
for (int i = 1; i < s->slice_context_count; i++)
- s->thread_context[i]->esc_pos = 0;
+ m2->thread_context[i]->esc_pos = 0;
}
void ff_mjpeg_amv_encode_picture_header(MPVMainEncContext *main)
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index ef2fa80aba..925c72e8ff 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -2503,10 +2503,10 @@ static int decode_chunks(AVCodecContext *avctx, AVFrame
*picture,
av_assert0(avctx->thread_count > 1);
avctx->execute(avctx, slice_decode_thread,
- &s2->thread_context[0], NULL,
+ &m2->thread_context[0], NULL,
s->slice_count, sizeof(void *));
for (i = 0; i < s->slice_count; i++)
- s2->er.error_count +=
s2->thread_context[i]->er.error_count;
+ s2->er.error_count +=
m2->thread_context[i]->er.error_count;
}
ret = slice_end(avctx, picture);
@@ -2575,10 +2575,10 @@ static int decode_chunks(AVCodecContext *avctx, AVFrame
*picture,
int i;
avctx->execute(avctx, slice_decode_thread,
- s2->thread_context, NULL,
+ m2->thread_context, NULL,
s->slice_count, sizeof(void *));
for (i = 0; i < s->slice_count; i++)
- s2->er.error_count +=
s2->thread_context[i]->er.error_count;
+ s2->er.error_count +=
m2->thread_context[i]->er.error_count;
s->slice_count = 0;
}
if (last_code == 0 || last_code == SLICE_MIN_START_CODE) {
@@ -2774,12 +2774,12 @@ static int decode_chunks(AVCodecContext *avctx, AVFrame
*picture,
s2->slice_context_count;
av_assert0(avctx->thread_count > 1);
if (threshold <= mb_y) {
- MPVDecContext *const thread_context =
s2->thread_context[s->slice_count];
+ MPVDecContext *const thread_context =
m2->thread_context[s->slice_count];
thread_context->start_mb_y = mb_y;
thread_context->end_mb_y = s2->mb_height;
if (s->slice_count) {
- s2->thread_context[s->slice_count - 1]->end_mb_y =
mb_y;
+ m2->thread_context[s->slice_count - 1]->end_mb_y =
mb_y;
ret = ff_update_duplicate_context(thread_context,
s2);
if (ret < 0)
return ret;
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 072a82e6b3..220f1c39f0 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -400,14 +400,15 @@ int ff_mpv_init_duplicate_contexts(MPVMainContext *m)
* fields allocated in init_duplicate_context are NULL after
* copying. This prevents double-frees upon allocation error. */
for (int i = 1; i < nb_slices; i++) {
- s->thread_context[i] = av_memdup(s, sizeof(MPVContext));
- if (!s->thread_context[i])
+ MPVContext *const s2 = av_memdup(s, sizeof(MPVContext));
+ if (!s2)
return AVERROR(ENOMEM);
- if ((ret = init_duplicate_context(s->thread_context[i])) < 0)
+ m->thread_context[i] = s2;
+ if ((ret = init_duplicate_context(s2)) < 0)
return ret;
- s->thread_context[i]->start_mb_y =
+ s2->start_mb_y =
(s->mb_height * (i ) + nb_slices / 2) / nb_slices;
- s->thread_context[i]->end_mb_y =
+ s2->end_mb_y =
(s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
}
s->start_mb_y = 0;
@@ -441,8 +442,8 @@ static void free_duplicate_contexts(MPVMainContext *m)
MPVContext *const s = &m->s;
for (int i = 1; i < s->slice_context_count; i++) {
- free_duplicate_context(s->thread_context[i]);
- av_freep(&s->thread_context[i]);
+ free_duplicate_context(m->thread_context[i]);
+ av_freep(&m->thread_context[i]);
}
free_duplicate_context(s);
}
@@ -621,8 +622,7 @@ static void clear_context(MPVMainContext *m)
memset(&s->current_picture, 0, sizeof(s->current_picture));
memset(&s->new_picture, 0, sizeof(s->new_picture));
- memset(s->thread_context, 0, sizeof(s->thread_context));
-
+ s->slice_context_count = 1;
s->me.map = NULL;
s->me.score_map = NULL;
s->dct_error_sum = NULL;
@@ -736,8 +736,7 @@ av_cold int ff_mpv_common_init(MPVMainContext *m)
#endif
s->context_initialized = 1;
- memset(s->thread_context, 0, sizeof(s->thread_context));
- s->thread_context[0] = s;
+ m->thread_context[0] = s;
s->slice_context_count = nb_slices;
// if (s->width && s->height) {
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 9adadc5b02..9005dcb58a 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -120,7 +120,6 @@ typedef struct MPVContext {
int start_mb_y; ///< start mb_y of this thread (so current
thread should process start_mb_y <= row < end_mb_y)
int end_mb_y; ///< end mb_y of this thread (so current
thread should process start_mb_y <= row < end_mb_y)
- struct MPVContext *thread_context[MAX_THREADS];
int slice_context_count; ///< number of used thread_contexts
/**
@@ -506,6 +505,8 @@ typedef struct MPVContext {
*/
typedef struct MPVMainContext {
MPVContext s;
+ /* The first entry of this array points to the above MPVContext. */
+ MPVContext *thread_context[MAX_THREADS];
} MPVMainContext;
/**
diff --git a/libavcodec/mpegvideo_dec.c b/libavcodec/mpegvideo_dec.c
index e70e306cf9..f202db33e9 100644
--- a/libavcodec/mpegvideo_dec.c
+++ b/libavcodec/mpegvideo_dec.c
@@ -197,13 +197,14 @@ do {\
int ff_mpv_common_frame_size_change(MPVMainDecContext *m)
{
+ MPVMainContext *const m2 = m;
MPVDecContext *const s = &m->s;
int err = 0;
if (!s->context_initialized)
return AVERROR(EINVAL);
- ff_mpv_free_context_frame(m);
+ ff_mpv_free_context_frame(m2);
if (s->picture)
for (int i = 0; i < MAX_PICTURE_COUNT; i++)
@@ -233,11 +234,11 @@ int ff_mpv_common_frame_size_change(MPVMainDecContext *m)
if ((err = ff_mpv_init_context_frame(m)))
goto fail;
- memset(s->thread_context, 0, sizeof(s->thread_context));
- s->thread_context[0] = s;
+ memset(m2->thread_context, 0, sizeof(m2->thread_context));
+ m2->thread_context[0] = s;
if (s->width && s->height) {
- err = ff_mpv_init_duplicate_contexts(m);
+ err = ff_mpv_init_duplicate_contexts(m2);
if (err < 0)
goto fail;
}
@@ -245,7 +246,7 @@ int ff_mpv_common_frame_size_change(MPVMainDecContext *m)
return 0;
fail:
- ff_mpv_free_context_frame(m);
+ ff_mpv_free_context_frame(m2);
s->context_reinit = 1;
return err;
}
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 656aab04cf..735c9d322f 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -1778,13 +1778,13 @@ int ff_mpv_encode_picture(AVCodecContext *avctx,
AVPacket *pkt,
}
for (i = 0; i < context_count; i++) {
- int start_y = s->thread_context[i]->start_mb_y;
- int end_y = s->thread_context[i]-> end_mb_y;
+ int start_y = m2->thread_context[i]->start_mb_y;
+ int end_y = m2->thread_context[i]-> end_mb_y;
int h = s->mb_height;
uint8_t *start = pkt->data + (size_t)(((int64_t) pkt->size) *
start_y / h);
uint8_t *end = pkt->data + (size_t)(((int64_t) pkt->size) *
end_y / h);
- init_put_bits(&s->thread_context[i]->pb, start, end - start);
+ init_put_bits(&m2->thread_context[i]->pb, start, end - start);
}
s->pict_type = s->new_picture.f->pict_type;
@@ -1838,7 +1838,7 @@ vbv_retry:
s->last_non_b_time = s->time - s->pp_time;
}
for (i = 0; i < context_count; i++) {
- PutBitContext *pb = &s->thread_context[i]->pb;
+ PutBitContext *pb = &m2->thread_context[i]->pb;
init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
}
s->vbv_ignore_qmax = 1;
@@ -3602,7 +3602,7 @@ static int encode_picture(MPVMainEncContext *m, int
picture_number)
s->mb_intra=0; //for the rate distortion & bit compare functions
for(i=1; i<context_count; i++){
- ret = ff_update_duplicate_context(s->thread_context[i], s);
+ ret = ff_update_duplicate_context(m2->thread_context[i], s);
if (ret < 0)
return ret;
}
@@ -3617,11 +3617,11 @@ static int encode_picture(MPVMainEncContext *m, int
picture_number)
if (s->pict_type != AV_PICTURE_TYPE_B) {
if ((m->me_pre && m->last_non_b_pict_type == AV_PICTURE_TYPE_I) ||
m->me_pre == 2) {
- s->avctx->execute(s->avctx, pre_estimate_motion_thread,
&s->thread_context[0], NULL, context_count, sizeof(void*));
+ s->avctx->execute(s->avctx, pre_estimate_motion_thread,
&m2->thread_context[0], NULL, context_count, sizeof(void*));
}
}
- s->avctx->execute(s->avctx, estimate_motion_thread,
&s->thread_context[0], NULL, context_count, sizeof(void*));
+ s->avctx->execute(s->avctx, estimate_motion_thread,
&m2->thread_context[0], NULL, context_count, sizeof(void*));
}else /* if(s->pict_type == AV_PICTURE_TYPE_I) */{
/* I-Frame */
for(i=0; i<s->mb_stride*s->mb_height; i++)
@@ -3629,11 +3629,11 @@ static int encode_picture(MPVMainEncContext *m, int
picture_number)
if (!m->fixed_qscale) {
/* finding spatial complexity for I-frame rate control */
- s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0],
NULL, context_count, sizeof(void*));
+ s->avctx->execute(s->avctx, mb_var_thread, &m2->thread_context[0],
NULL, context_count, sizeof(void*));
}
}
for(i=1; i<context_count; i++){
- merge_context_after_me(s, s->thread_context[i]);
+ merge_context_after_me(s, m2->thread_context[i]);
}
s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum=
s->me.mc_mb_var_sum_temp;
s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum=
s->me. mb_var_sum_temp;
@@ -3819,13 +3819,14 @@ static int encode_picture(MPVMainEncContext *m, int
picture_number)
m->header_bits = bits - s->last_bits;
for(i=1; i<context_count; i++){
- update_duplicate_context_after_me(s->thread_context[i], s);
+ update_duplicate_context_after_me(m2->thread_context[i], s);
}
- s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL,
context_count, sizeof(void*));
+ s->avctx->execute(s->avctx, encode_thread, &m2->thread_context[0], NULL,
context_count, sizeof(void*));
for(i=1; i<context_count; i++){
- if (s->pb.buf_end == s->thread_context[i]->pb.buf)
- set_put_bits_buffer_size(&s->pb,
FFMIN(s->thread_context[i]->pb.buf_end - s->pb.buf, INT_MAX/8-BUF_BITS));
- merge_context_after_encode(s, s->thread_context[i]);
+ MPVEncContext *const slice = m2->thread_context[i];
+ if (s->pb.buf_end == slice->pb.buf)
+ set_put_bits_buffer_size(&s->pb, FFMIN(slice->pb.buf_end -
s->pb.buf, INT_MAX/8-BUF_BITS));
+ merge_context_after_encode(s, slice);
}
emms_c();
return 0;
--
2.32.0
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