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some useful warning 

Originally committed as revision 1961 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Nick Kurshev 2003-06-16 08:28:43 +00:00
parent fb059921da
commit 0b15bfe7cc
1 changed files with 19 additions and 6 deletions
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25
libavcodec/ra288.c
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@ -406,33 +406,46 @@ static int ra288_decode_frame(AVCodecContext * avctx,
int h=((short*)(avctx->extradata))[1];
int cfs=((short*)(avctx->extradata))[3]; /* coded frame size */
int i,j;
if(buf_size<w*h) goto no_interleave;
if(buf_size<w*h)
{
fprintf(stderr,"ffra288: warning! Context was not interleaved [%d<%d]\n",buf_size,w*h);
goto no_interleave;
}
bp = buf;
for (j = 0; j < h; j++)
for (i = 0; i < h/2; i++)
{
memcpy(&b[i*2*w+j*cfs], bp, cfs);
bp += cfs;
if(bp-buf>=buf_size) break;
if(bp-buf>buf_size)
{
fprintf(stderr,"ffra288: warning! Context was partly interleaved [%d<%d]\n",buf_size,w*h);
break;
}
}
bret=bp-buf;
bp = b;
}
else { no_interleave: bret=buf_size; bp = buf; }
else
{
fprintf(stderr,"ffra288: warning! Context was not interleaved [%d<%d]\n",avctx->extradata_size,6);
no_interleave:
bret=buf_size;
bp = buf;
}
datao = data;
z=0;
while(z<bret)
{
unpack(buffer,bp,32);
unpack(buffer,&bp[z],32);
for (x=0;x<32;x++)
{
glob->phasep=(glob->phase=x&7)*5;
decode(glob,buffer[x]);
for (y=0;y<5;y++) *(((int16_t *)data)++)=8*glob->output[glob->phasep+y];
for (y=0;y<5;*(((int16_t *)data)++)=8*glob->output[glob->phasep+(y++)]);
if (glob->phase==3) update(glob);
}
z+=32;
bp+=32;
}
*data_size = data - datao;
return bret;