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author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-09-27 15:55:27 +0200 |
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committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-11-06 13:57:49 +0100 |
commit | 0302728c9e18a75669cbf5beb47150b9318aa0f8 (patch) | |
tree | f5b680ac8b7e7e27073b7bd5574a63857ad3c57c /libavcodec/truemotion2.c | |
parent | fa1d105a6c44b75f583b1b3870d83aca69caee95 (diff) | |
download | ffmpeg-0302728c9e18a75669cbf5beb47150b9318aa0f8.tar.gz |
avcodec/truemotion2: Allocate buffers together
Reduces the number of allocations and frees.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavcodec/truemotion2.c')
-rw-r--r-- | libavcodec/truemotion2.c | 46 |
1 files changed, 19 insertions, 27 deletions
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index a90ff8cf01..0f4f345a6c 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -81,7 +81,7 @@ typedef struct TM2Context { int *clast; /* data for current and previous frame */ - int *Y1_base, *U1_base, *V1_base, *Y2_base, *U2_base, *V2_base; + int *Y_base, *UV_base; int *Y1, *U1, *V1, *Y2, *U2, *V2; int y_stride, uv_stride; int cur; @@ -966,32 +966,29 @@ static av_cold int decode_init(AVCodecContext *avctx) ff_bswapdsp_init(&l->bdsp); - l->last = av_malloc_array(w >> 2, 4 * sizeof(*l->last) ); - l->clast = av_malloc_array(w >> 2, 4 * sizeof(*l->clast)); + l->last = av_malloc_array(w, 2 * sizeof(*l->last)); + if (!l->last) + return AVERROR(ENOMEM); + l->clast = l->last + w; w += 8; h += 8; - l->Y1_base = av_calloc(w * h, sizeof(*l->Y1_base)); - l->Y2_base = av_calloc(w * h, sizeof(*l->Y2_base)); + l->Y_base = av_calloc(w * h, 2 * sizeof(*l->Y_base)); + if (!l->Y_base) + return AVERROR(ENOMEM); l->y_stride = w; + l->Y1 = l->Y_base + l->y_stride * 4 + 4; + l->Y2 = l->Y1 + w * h; w = (w + 1) >> 1; h = (h + 1) >> 1; - l->U1_base = av_calloc(w * h, sizeof(*l->U1_base)); - l->V1_base = av_calloc(w * h, sizeof(*l->V1_base)); - l->U2_base = av_calloc(w * h, sizeof(*l->U2_base)); - l->V2_base = av_calloc(w * h, sizeof(*l->V1_base)); - l->uv_stride = w; - if (!l->Y1_base || !l->Y2_base || !l->U1_base || - !l->V1_base || !l->U2_base || !l->V2_base || - !l->last || !l->clast) { + l->UV_base = av_calloc(w * h, 4 * sizeof(*l->UV_base)); + if (!l->UV_base) return AVERROR(ENOMEM); - } - l->Y1 = l->Y1_base + l->y_stride * 4 + 4; - l->Y2 = l->Y2_base + l->y_stride * 4 + 4; - l->U1 = l->U1_base + l->uv_stride * 2 + 2; - l->U2 = l->U2_base + l->uv_stride * 2 + 2; - l->V1 = l->V1_base + l->uv_stride * 2 + 2; - l->V2 = l->V2_base + l->uv_stride * 2 + 2; + l->uv_stride = w; + l->U1 = l->UV_base + l->uv_stride * 2 + 2; + l->U2 = l->U1 + w * h; + l->V1 = l->U2 + w * h; + l->V2 = l->V1 + w * h; return 0; } @@ -1002,16 +999,11 @@ static av_cold int decode_end(AVCodecContext *avctx) int i; av_freep(&l->last); - av_freep(&l->clast); for (i = 0; i < TM2_NUM_STREAMS; i++) av_freep(&l->tokens[i]); - av_freep(&l->Y1_base); - av_freep(&l->U1_base); - av_freep(&l->V1_base); - av_freep(&l->Y2_base); - av_freep(&l->U2_base); - av_freep(&l->V2_base); + av_freep(&l->Y_base); + av_freep(&l->UV_base); av_freep(&l->buffer); l->buffer_size = 0; |