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authorMichael Niedermayer <michaelni@gmx.at>2012-02-18 02:20:19 +0100
committerMichael Niedermayer <michaelni@gmx.at>2012-02-18 02:20:19 +0100
commitbbb61a1cd5cb2046e480f367a7ae58a32f2ef907 (patch)
tree0e7cc2b59558e2dc31d6b8752d90f6b5b5c886e5 /libavcodec/cdxl.c
parentf6492476a63938cc66c51bf61c88407b7749f780 (diff)
parentaf468015d972c0dec5c8c37b2685ffa5cbe4ae87 (diff)
downloadffmpeg-streaming-bbb61a1cd5cb2046e480f367a7ae58a32f2ef907.zip
ffmpeg-streaming-bbb61a1cd5cb2046e480f367a7ae58a32f2ef907.tar.gz
Merge remote-tracking branch 'qatar/master'
* qatar/master: (22 commits) als: prevent infinite loop in zero_remaining(). cook: prevent div-by-zero if channels is zero. pamenc: switch to encode2(). svq1enc: switch to encode2(). dvenc: switch to encode2(). dpxenc: switch to encode2(). pngenc: switch to encode2(). v210enc: switch to encode2(). xwdenc: switch to encode2(). ttadec: use branchless unsigned-to-signed unfolding avcodec: add a Sun Rasterfile encoder sunrast: Move common defines to a new header file. cdxl: fix video decoding for some files cdxl: fix audio for some samples apetag: add proper support for binary tags ttadec: remove dead code swscale: make access to filter data conditional on filter type. swscale: update context offsets after removal of AlpMmxFilter. prores: initialise encoder and decoder parts only when needed swscale: make monowhite/black RGB-independent. ... Conflicts: Changelog libavcodec/alsdec.c libavcodec/dpxenc.c libavcodec/golomb.h libavcodec/pamenc.c libavcodec/pngenc.c libavformat/img2.c libswscale/output.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/cdxl.c')
-rw-r--r--libavcodec/cdxl.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/libavcodec/cdxl.c b/libavcodec/cdxl.c
index 8c9bea9..a854634 100644
--- a/libavcodec/cdxl.c
+++ b/libavcodec/cdxl.c
@@ -60,27 +60,29 @@ static void import_palette(CDXLVideoContext *c, uint32_t *new_palette)
}
}
-static void bitplanar2chunky(CDXLVideoContext *c, int width,
- int linesize, uint8_t *out)
+static void bitplanar2chunky(CDXLVideoContext *c, int linesize, uint8_t *out)
{
+ int skip = FFALIGN(c->avctx->width, 16) - c->avctx->width;
GetBitContext gb;
int x, y, plane;
init_get_bits(&gb, c->video, c->video_size * 8);
memset(out, 0, linesize * c->avctx->height);
- for (plane = 0; plane < c->bpp; plane++)
- for (y = 0; y < c->avctx->height; y++)
- for (x = 0; x < width; x++)
+ for (plane = 0; plane < c->bpp; plane++) {
+ for (y = 0; y < c->avctx->height; y++) {
+ for (x = 0; x < c->avctx->width; x++)
out[linesize * y + x] |= get_bits1(&gb) << plane;
+ skip_bits(&gb, skip);
+ }
+ }
}
static void cdxl_decode_rgb(CDXLVideoContext *c)
{
uint32_t *new_palette = (uint32_t *)c->frame.data[1];
- int padded_width = FFALIGN(c->avctx->width, 16);
import_palette(c, new_palette);
- bitplanar2chunky(c, padded_width, c->frame.linesize[0], c->frame.data[0]);
+ bitplanar2chunky(c, c->frame.linesize[0], c->frame.data[0]);
}
static void cdxl_decode_ham6(CDXLVideoContext *c)
@@ -94,7 +96,7 @@ static void cdxl_decode_ham6(CDXLVideoContext *c)
out = c->frame.data[0];
import_palette(c, new_palette);
- bitplanar2chunky(c, avctx->width, avctx->width, c->new_video);
+ bitplanar2chunky(c, avctx->width, c->new_video);
for (y = 0; y < avctx->height; y++) {
r = new_palette[0] & 0xFF0000;
@@ -137,7 +139,7 @@ static void cdxl_decode_ham8(CDXLVideoContext *c)
out = c->frame.data[0];
import_palette(c, new_palette);
- bitplanar2chunky(c, avctx->width, avctx->width, c->new_video);
+ bitplanar2chunky(c, avctx->width, c->new_video);
for (y = 0; y < avctx->height; y++) {
r = new_palette[0] & 0xFF0000;
@@ -209,16 +211,13 @@ static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
if (w != avctx->width || h != avctx->height)
avcodec_set_dimensions(avctx, w, h);
+ if (c->video_size < FFALIGN(avctx->width, 16) * avctx->height * c->bpp / 8)
+ return AVERROR_INVALIDDATA;
if (encoding == 0) {
- if (c->video_size < FFALIGN(avctx->width, 16) *
- avctx->height * c->bpp / 8)
- return AVERROR_INVALIDDATA;
avctx->pix_fmt = PIX_FMT_PAL8;
} else if (encoding == 1 && (c->bpp == 6 || c->bpp == 8)) {
if (c->palette_size != (1 << (c->bpp - 1)))
return AVERROR_INVALIDDATA;
- if (c->video_size < avctx->width * avctx->height * c->bpp / 8)
- return AVERROR_INVALIDDATA;
avctx->pix_fmt = PIX_FMT_BGR24;
} else {
av_log_ask_for_sample(avctx, "unsupported encoding %d and bpp %d\n",
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