summaryrefslogtreecommitdiff
path: root/libavcodec/mpegvideo.c
diff options
context:
space:
mode:
Diffstat (limited to 'libavcodec/mpegvideo.c')
-rw-r--r--libavcodec/mpegvideo.c118
1 files changed, 7 insertions, 111 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 1190f29954..86fe5e4022 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -566,61 +566,13 @@ int ff_mpv_init_context_frame(MpegEncContext *s)
s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
- if (s->encoding) {
- /* Allocate MV tables */
- if (!FF_ALLOCZ_TYPED_ARRAY(s->p_mv_table_base, mv_table_size) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->b_forw_mv_table_base, mv_table_size) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->b_back_mv_table_base, mv_table_size) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_forw_mv_table_base, mv_table_size) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_back_mv_table_base, mv_table_size) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->b_direct_mv_table_base, mv_table_size))
- return AVERROR(ENOMEM);
- s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
- s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
- s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
- s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
- s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
- s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
-
- /* Allocate MB type table */
- if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_type, mb_array_size) ||
- !FF_ALLOCZ_TYPED_ARRAY(s->lambda_table, mb_array_size) ||
- !FF_ALLOC_TYPED_ARRAY (s->cplx_tab, mb_array_size) ||
- !FF_ALLOC_TYPED_ARRAY (s->bits_tab, mb_array_size))
- return AVERROR(ENOMEM);
-
-#define ALLOCZ_ARRAYS(p, mult, numb) ((p) = av_calloc(numb, mult * sizeof(*(p))))
- if (s->codec_id == AV_CODEC_ID_MPEG4 ||
- (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
- int16_t (*tmp1)[2];
- uint8_t *tmp2;
- if (!(tmp1 = ALLOCZ_ARRAYS(s->b_field_mv_table_base, 8, mv_table_size)) ||
- !(tmp2 = ALLOCZ_ARRAYS(s->b_field_select_table[0][0], 2 * 4, mv_table_size)) ||
- !ALLOCZ_ARRAYS(s->p_field_select_table[0], 2 * 2, mv_table_size))
- return AVERROR(ENOMEM);
-
- s->p_field_select_table[1] = s->p_field_select_table[0] + 2 * mv_table_size;
- tmp1 += s->mb_stride + 1;
-
- for (int i = 0; i < 2; i++) {
- for (int j = 0; j < 2; j++) {
- for (int k = 0; k < 2; k++) {
- s->b_field_mv_table[i][j][k] = tmp1;
- tmp1 += mv_table_size;
- }
- s->b_field_select_table[i][j] = tmp2;
- tmp2 += 2 * mv_table_size;
- }
- }
- }
- }
-
if (s->codec_id == AV_CODEC_ID_MPEG4 ||
(s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
- int16_t (*tmp)[2];
/* interlaced direct mode decoding tables */
- if (!(tmp = ALLOCZ_ARRAYS(s->p_field_mv_table_base, 4, mv_table_size)))
+ int16_t (*tmp)[2] = av_calloc(mv_table_size, 4 * sizeof(*tmp));
+ if (!tmp)
return AVERROR(ENOMEM);
+ s->p_field_mv_table_base = tmp;
tmp += s->mb_stride + 1;
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
@@ -663,8 +615,6 @@ int ff_mpv_init_context_frame(MpegEncContext *s)
static void clear_context(MpegEncContext *s)
{
- int i, j, k;
-
memset(&s->next_picture, 0, sizeof(s->next_picture));
memset(&s->last_picture, 0, sizeof(s->last_picture));
memset(&s->current_picture, 0, sizeof(s->current_picture));
@@ -693,31 +643,10 @@ static void clear_context(MpegEncContext *s)
s->bitstream_buffer = NULL;
s->allocated_bitstream_buffer_size = 0;
s->picture = NULL;
- s->mb_type = NULL;
- s->p_mv_table_base = NULL;
- s->b_forw_mv_table_base = NULL;
- s->b_back_mv_table_base = NULL;
- s->b_bidir_forw_mv_table_base = NULL;
- s->b_bidir_back_mv_table_base = NULL;
- s->b_direct_mv_table_base = NULL;
- s->p_mv_table = NULL;
- s->b_forw_mv_table = NULL;
- s->b_back_mv_table = NULL;
- s->b_bidir_forw_mv_table = NULL;
- s->b_bidir_back_mv_table = NULL;
- s->b_direct_mv_table = NULL;
- s->b_field_mv_table_base = NULL;
s->p_field_mv_table_base = NULL;
- for (i = 0; i < 2; i++) {
- for (j = 0; j < 2; j++) {
- for (k = 0; k < 2; k++) {
- s->b_field_mv_table[i][j][k] = NULL;
- }
- s->b_field_select_table[i][j] = NULL;
+ for (int i = 0; i < 2; i++)
+ for (int j = 0; j < 2; j++)
s->p_field_mv_table[i][j] = NULL;
- }
- s->p_field_select_table[i] = NULL;
- }
s->dc_val_base = NULL;
s->coded_block_base = NULL;
@@ -730,10 +659,6 @@ static void clear_context(MpegEncContext *s)
s->er.error_status_table = NULL;
s->er.er_temp_buffer = NULL;
s->mb_index2xy = NULL;
- s->lambda_table = NULL;
-
- s->cplx_tab = NULL;
- s->bits_tab = NULL;
}
/**
@@ -824,37 +749,12 @@ av_cold int ff_mpv_common_init(MpegEncContext *s)
void ff_mpv_free_context_frame(MpegEncContext *s)
{
- int i, j, k;
-
free_duplicate_contexts(s);
- av_freep(&s->mb_type);
- av_freep(&s->p_mv_table_base);
- av_freep(&s->b_forw_mv_table_base);
- av_freep(&s->b_back_mv_table_base);
- av_freep(&s->b_bidir_forw_mv_table_base);
- av_freep(&s->b_bidir_back_mv_table_base);
- av_freep(&s->b_direct_mv_table_base);
- s->p_mv_table = NULL;
- s->b_forw_mv_table = NULL;
- s->b_back_mv_table = NULL;
- s->b_bidir_forw_mv_table = NULL;
- s->b_bidir_back_mv_table = NULL;
- s->b_direct_mv_table = NULL;
- av_freep(&s->b_field_mv_table_base);
- av_freep(&s->b_field_select_table[0][0]);
av_freep(&s->p_field_mv_table_base);
- av_freep(&s->p_field_select_table[0]);
- for (i = 0; i < 2; i++) {
- for (j = 0; j < 2; j++) {
- for (k = 0; k < 2; k++) {
- s->b_field_mv_table[i][j][k] = NULL;
- }
- s->b_field_select_table[i][j] = NULL;
+ for (int i = 0; i < 2; i++)
+ for (int j = 0; j < 2; j++)
s->p_field_mv_table[i][j] = NULL;
- }
- s->p_field_select_table[i] = NULL;
- }
av_freep(&s->dc_val_base);
av_freep(&s->coded_block_base);
@@ -867,10 +767,6 @@ void ff_mpv_free_context_frame(MpegEncContext *s)
av_freep(&s->er.error_status_table);
av_freep(&s->er.er_temp_buffer);
av_freep(&s->mb_index2xy);
- av_freep(&s->lambda_table);
-
- av_freep(&s->cplx_tab);
- av_freep(&s->bits_tab);
s->linesize = s->uvlinesize = 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-19 14:09:57 +0000