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avformat/mov: Do not compute a grayscale palette for cinepak in mov.

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This was never done for avi files, the decoder always produced
output no matter if a palette was computed or not.
Since a non-standard palette was needed, this simplifies the code.
See issue 1067 and ticket #165.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Carl Eugen Hoyos 2013-12-12 13:42:10 +01:00 committed by Michael Niedermayer
parent 251c96a70b
commit d63e994361
1 changed files with 3 additions and 3 deletions
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6
libavformat/mov.c
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@ -1314,6 +1314,9 @@ static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
/* figure out the palette situation */
color_depth = st->codec->bits_per_coded_sample & 0x1F;
color_greyscale = st->codec->bits_per_coded_sample & 0x20;
/* Do not create a greyscale palette for cinepak */
if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
return;
/* if the depth is 2, 4, or 8 bpp, file is palettized */
if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
@ -1329,9 +1332,6 @@ static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
color_index = 255;
color_dec = 256 / (color_count - 1);
for (j = 0; j < color_count; j++) {
if (st->codec->codec_id == AV_CODEC_ID_CINEPAK){
r = g = b = color_count - 1 - color_index;
} else
r = g = b = color_index;
sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
color_index -= color_dec;