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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-02-06 15:56:24 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-02-06 15:57:45 +0100 |
| commit | 769eba75eeaa6ee013d7d0573764531e674b6d9b (patch) | |
| tree | 4f05b00113df786611c178c9bfa535bbc36ed819 /libavcodec | |
| parent | 68c0144d028bb65ea93651503b154a056246b03d (diff) | |
| parent | 89f11f498b9c15bc71494a11a7ec560f4adf630d (diff) | |
| download | ffmpeg-769eba75eeaa6ee013d7d0573764531e674b6d9b.tar.gz | |
Merge commit '89f11f498b9c15bc71494a11a7ec560f4adf630d'
* commit '89f11f498b9c15bc71494a11a7ec560f4adf630d':
qtrle: fix the topmost line for 1bit
Conflicts:
tests/ref/fate/qtrle-1bit
See: 1af91978dbab35ba9fdede187577c00d643ae33b
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/qtrle.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c index 5acd2eb3ae..c4b387cdc3 100644 --- a/libavcodec/qtrle.c +++ b/libavcodec/qtrle.c @@ -56,7 +56,7 @@ typedef struct QtrleContext { static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change) { int rle_code; - int pixel_ptr = 0; + int pixel_ptr; int row_inc = s->frame.linesize[0]; unsigned char pi0, pi1; /* 2 8-pixel values */ unsigned char *rgb = s->frame.data[0]; @@ -70,8 +70,10 @@ static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change) * See: https://ffmpeg.org/trac/ffmpeg/ticket/226 * In the following decoding loop, row_ptr will be the position of the * _next_ row. */ - lines_to_change++; + row_ptr -= row_inc; + pixel_ptr = row_ptr; + lines_to_change++; while (lines_to_change) { skip = bytestream2_get_byte(&s->g); rle_code = (signed char)bytestream2_get_byte(&s->g); @@ -79,8 +81,8 @@ static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change) break; if(skip & 0x80) { lines_to_change--; - pixel_ptr = row_ptr + 2 * (skip & 0x7f); row_ptr += row_inc; + pixel_ptr = row_ptr + 2 * (skip & 0x7f); } else pixel_ptr += 2 * skip; CHECK_PIXEL_PTR(0); /* make sure pixel_ptr is positive */ |