From c9ec7564f0f37e0b672d1f61ee8175acd44c1b00 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Reimar=20D=C3=B6ffinger?= Date: Sun, 5 Nov 2006 16:18:37 +0000 Subject: [PATCH] Move idct block array variable onto rtjpeg_decode_frame_yuv420 stack since it is only used there and is only 128 byte large. Also make it aligned to fix playback with altivec. Originally committed as revision 6902 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/rtjpeg.c | 25 +++++++++++++------------ libavcodec/rtjpeg.h | 1 - 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/libavcodec/rtjpeg.c b/libavcodec/rtjpeg.c index 56bafd7..8e50820 100644 --- a/libavcodec/rtjpeg.c +++ b/libavcodec/rtjpeg.c @@ -98,6 +98,7 @@ static inline int get_block(GetBitContext *gb, DCTELEM *block, uint8_t *scan, */ int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f, uint8_t *buf, int buf_size) { + DECLARE_ALIGNED_16(DCTELEM, block[64]); GetBitContext gb; int w = c->w / 16, h = c->h / 16; int x, y; @@ -106,23 +107,23 @@ int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f, init_get_bits(&gb, buf, buf_size * 8); for (y = 0; y < h; y++) { for (x = 0; x < w; x++) { - if (get_block(&gb, c->block, c->scan, c->lquant)) - c->dsp->idct_put(y1, f->linesize[0], c->block); + if (get_block(&gb, block, c->scan, c->lquant)) + c->dsp->idct_put(y1, f->linesize[0], block); y1 += 8; - if (get_block(&gb, c->block, c->scan, c->lquant)) - c->dsp->idct_put(y1, f->linesize[0], c->block); + if (get_block(&gb, block, c->scan, c->lquant)) + c->dsp->idct_put(y1, f->linesize[0], block); y1 += 8; - if (get_block(&gb, c->block, c->scan, c->lquant)) - c->dsp->idct_put(y2, f->linesize[0], c->block); + if (get_block(&gb, block, c->scan, c->lquant)) + c->dsp->idct_put(y2, f->linesize[0], block); y2 += 8; - if (get_block(&gb, c->block, c->scan, c->lquant)) - c->dsp->idct_put(y2, f->linesize[0], c->block); + if (get_block(&gb, block, c->scan, c->lquant)) + c->dsp->idct_put(y2, f->linesize[0], block); y2 += 8; - if (get_block(&gb, c->block, c->scan, c->cquant)) - c->dsp->idct_put(u, f->linesize[1], c->block); + if (get_block(&gb, block, c->scan, c->cquant)) + c->dsp->idct_put(u, f->linesize[1], block); u += 8; - if (get_block(&gb, c->block, c->scan, c->cquant)) - c->dsp->idct_put(v, f->linesize[2], c->block); + if (get_block(&gb, block, c->scan, c->cquant)) + c->dsp->idct_put(v, f->linesize[2], block); v += 8; } y1 += 2 * 8 * (f->linesize[0] - w); diff --git a/libavcodec/rtjpeg.h b/libavcodec/rtjpeg.h index f592e08..daecc8a 100644 --- a/libavcodec/rtjpeg.h +++ b/libavcodec/rtjpeg.h @@ -25,7 +25,6 @@ typedef struct { int w, h; DSPContext *dsp; - DCTELEM block[64]; uint8_t scan[64]; uint32_t lquant[64]; uint32_t cquant[64]; -- 2.7.4