[FFmpeg-trac] #622(swscale:new): swscale crash when convert PIX_FMT_YUV420P -> PIX_FMT_YUVJ420P
FFmpeg
trac at avcodec.org
Tue Nov 8 12:24:25 CET 2011
#622: swscale crash when convert PIX_FMT_YUV420P -> PIX_FMT_YUVJ420P
---------------------------------------+---------------------------------
Reporter: kyh96403 | Owner: michael
Type: defect | Status: new
Priority: important | Component: swscale
Version: unspecified | Keywords: sescale
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
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swscale is crash below code.
#include <stdio.h>
#include <libswscale/swscale.h>
int main()
{
int ww = 624; // crash
int hh = 352;
// int ww = 48; // crash
// int hh = 48;
// int ww = 64; // not crash
// int hh = 64;
int SwsFlag = SWS_POINT | SWS_ACCURATE_RND;
struct SwsContext *context = NULL;
uint8_t *src_data[4], *dst_data[4];
int src_pitch[4], dst_pitch[4];
context = sws_getCachedContext(context, ww, hh, PIX_FMT_YUV420P,
ww, hh, PIX_FMT_YUVJ420P, SwsFlag, NULL, NULL, NULL);
src_data[0] = av_malloc(ww * hh);
src_data[1] = av_malloc(ww * hh / 4);
src_data[2] = av_malloc(ww * hh / 4);
src_data[3] = NULL;
dst_data[0] = av_malloc(ww * hh);
dst_data[1] = av_malloc(ww * hh / 4);
dst_data[2] = av_malloc(ww * hh / 4);
dst_data[3] = NULL;
src_pitch[0] = ww;
src_pitch[1] = ww / 2;
src_pitch[2] = ww / 2;
src_pitch[3] = 0;
dst_pitch[0] = ww;
dst_pitch[1] = ww / 2;
dst_pitch[2] = ww / 2;
dst_pitch[3] = 0;
sws_scale(context, src_data, src_pitch, 0, hh, dst_data,
dst_pitch);
return 0;
}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/622>
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