[FFmpeg-trac] #226(undetermined:new): QT RLE 1bpp support is buggy
FFmpeg
trac at avcodec.org
Fri May 20 23:36:23 CEST 2011
#226: QT RLE 1bpp support is buggy
--------------------------+--------------------------
Reporter: ami_stuff | Type: defect
Status: new | Priority: normal
Component: undetermined | Version: unspecified
Keywords: | Blocked By:
Blocking: | Reproduced: 0
Analyzed: 0 |
--------------------------+--------------------------
(issue 1529)
{{{
Author: ami_stuff Date: 2009-11-07.19:32:36
Attached QT RLE file decodes correctly except some gfx bugs:
1. at the beginning in the output AVI file there are visible white lines
2. there is visibe white line at the top of the screen
C:\>ffmpeg -i qt_rle_bw.mov -vcodec huffyuv qt_rle_bw.avi
FFmpeg version SVN-r20467, Copyright (c) 2000-2009 Fabrice Bellard, et al.
built on Nov 6 2009 04:04:33 with gcc 4.2.4
configuration: --enable-memalign-hack --prefix=/mingw --cross-
prefix=i686-ming
w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686
--cpu=i686 --e
nable-avisynth --enable-gpl --enable-version3 --enable-zlib --enable-bzlib
--ena
ble-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-
libthe
ora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-
libxvid
--enable-libschroedinger --enable-libx264 --enable-libopencore_amrwb
--enable-li
bopencore_amrnb
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.37. 1 / 52.37. 1
libavformat 52.39. 2 / 52.39. 2
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1
Seems stream 0 codec frame rate differs from container frame rate:
1000000.00 (1
000000/1) -> 15.00 (500000/33333)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'qt_rle_bw.mov':
Duration: 00:00:12.64, start: 0.000000, bitrate: 1197 kb/s
Stream #0.0(eng): Video: qtrle, monow, 320x240, 1195 kb/s, 15 tbr,
1000k tbn
, 1000k tbc
Metadata
major_brand : qt
minor_version : 537199360
compatible_brands: qt
Output #0, avi, to 'qt_rle_bw.avi':
Stream #0.0(eng): Video: huffyuv, yuv422p, 320x240, q=2-31, 200 kb/s,
15 tbn
, 15 tbc
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11522, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11524, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11522, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11532, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 44 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11526, pixel_limit = 11520
Last message repeated 1 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11556, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 3 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11524, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11550, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11534, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 12 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11528, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 19 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11532, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 6 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11536, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 4 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11552, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11528, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 14 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11556, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 6 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11554, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 1 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11526, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11524, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 9 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11530, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11522, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11540, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 2 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11524, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 3 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11532, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11560, pixel_limit = 11520
Last message repeated 13 times10410kB time=11.20 bitrate=7614.3kbits/s
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11526, pixel_limit = 11520
Last message repeated 1 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11524, pixel_limit = 11520
Last message repeated 1 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11534, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11522, pixel_limit = 11520
Last message repeated 4 times
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11524, pixel_limit = 11520
[qtrle @ 0x1a08480]Problem: pixel_ptr = 11532, pixel_limit = 11520
frame= 190 fps= 0 q=0.0 Lsize= 11759kB time=12.67
bitrate=7605.2kbits/s
video:11749kB audio:0kB global headers:0kB muxing overhead 0.085112%
}}}
{{{
Author: cehoyos Date: 2009-12-29.20:41:05
Since the sample decodes, I believe this is a minor issue.
}}}
XAnim decodes the sample correctly:
{{{
/********************* * * * *******************************************/
xaULONG QT_Decode_RLE1(image,delta,dsize,dec_info)
xaUBYTE *image; /* Image Buffer. */
xaUBYTE *delta; /* delta data. */
xaULONG dsize; /* delta size */
XA_DEC_INFO *dec_info; /* Decoder Info Header */
{ xaULONG imagex = dec_info->imagex; xaULONG imagey = dec_info->imagey;
xaULONG map_flag = dec_info->map_flag; xaULONG *map =
dec_info->map;
xaLONG x,y,d,lines; /* xaLONG min_x,max_x,min_y,max_y; */
xaUBYTE *dptr;
dptr = delta;
dptr += 4; /* skip codec size */
d = (*dptr++) << 8; d |= *dptr++; /* read code either 0008 or 0000 */
if (dsize < 8) /* NOP */
{
dec_info->xs = dec_info->ys = dec_info->xe = dec_info->ye = 0;
return(ACT_DLTA_NOP);
}
if (d & 0x0008) /* Header present */
{
y = (*dptr++) << 8; y |= *dptr++; /* start line */
dptr += 2; /* unknown */
lines = (*dptr++) << 8; lines |= *dptr++; /* number of lines */
dptr += 2; /* unknown */
}
else { y = 0; lines = imagey; }
x = 0; y--; lines++;
while(lines) /* loop thru lines */
{
xaULONG d,xskip,cnt;
xskip = *dptr++; /* skip x pixels */
cnt = *dptr++; /* RLE code */
if (cnt == 0) break; /* exit */
/* this can be removed */
if ((xskip == 0x80) && (cnt == 0x00)) /* end of codec */
{
lines = 0; y++; x = 0;
}
else if ((xskip == 0x80) && (cnt == 0xff)) /* skip line */
{lines--; y++; x = 0; }
else
{
if (xskip & 0x80) {lines--; y++; x = xskip & 0x7f;}
else x += xskip;
if (cnt < 0x80) /* run of data */
{
xaUBYTE *bptr; xaUSHORT *sptr; xaULONG *lptr;
if ((x11_bytes_pixel==1) || (map_flag==xaFALSE) )
bptr = (xaUBYTE *)(image + (y * imagex) + (x << 4) );
else if (x11_bytes_pixel==2)
sptr = (xaUSHORT *)(image + 2*(y * imagex) + (x << 5) );
else lptr = (xaULONG *)(image + 4*(y * imagex) + (x << 6) );
x += cnt;
while(cnt--)
{ xaULONG i,mask;
d = (*dptr++ << 8); d |= *dptr++;
mask = 0x8000;
for(i=0;i<16;i++)
{
if (map_flag==xaFALSE)
{ if (d & mask) *bptr++ = 0; else *bptr++ = 1; }
else if (x11_bytes_pixel==1) {if (d & mask)
*bptr++=(xaUBYTE)map[0];
else *bptr++=(xaUBYTE)map[1];}
else if (x11_bytes_pixel==2) {if (d & mask) *sptr++
=(xaUSHORT)map[0];
else *sptr++ =(xaUSHORT)map[1]; }
else { if (d & mask) *lptr++ = (xaULONG)map[0];
else *lptr++ = (xaULONG)map[1]; }
mask >>= 1;
}
}
} /* end run */
else /* repeat data */
{
xaUBYTE *bptr; xaUSHORT *sptr; xaULONG *lptr;
if ((x11_bytes_pixel==1) || (map_flag==xaFALSE) )
bptr = (xaUBYTE *)(image + (y * imagex) + (x << 4) );
else if (x11_bytes_pixel==2)
sptr = (xaUSHORT *)(image + 2*(y * imagex) + (x << 5) );
else lptr = (xaULONG *)(image + 4*(y * imagex) + (x << 6) );
cnt = 0x100 - cnt;
x += cnt;
d = (*dptr++ << 8); d |= *dptr++;
while(cnt--)
{ xaULONG i,mask;
mask = 0x8000;
for(i=0;i<16;i++)
{
if (map_flag==xaFALSE)
{ if (d & mask) *bptr++ = 0; else *bptr++ = 1; }
else if (x11_bytes_pixel==1) {if (d & mask)
*bptr++=(xaUBYTE)map[0];
else *bptr++=(xaUBYTE)map[1];}
else if (x11_bytes_pixel==2) {if (d & mask) *sptr++
=(xaUSHORT)map[0];
else *sptr++ =(xaUSHORT)map[1]; }
else { if (d & mask) *lptr++ = (xaULONG)map[0];
else *lptr++ = (xaULONG)map[1]; }
mask >>= 1;
}
}
} /* end repeat */
} /* end of code */
} /* end of lines */
dec_info->xs = dec_info->ys = 0; dec_info->xe = imagex; dec_info->ye =
imagey;
if (map_flag==xaTRUE) return(ACT_DLTA_MAPD);
else return(ACT_DLTA_NORM);
}
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/226>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list