diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2014-08-14 16:19:53 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-08-14 16:20:55 +0200 |
| commit | 5c7899a4834ee927f5629e4c02bfa225b846f016 (patch) | |
| tree | b10d62a60c11e30b5bf69408aa1c5cbe0ddf4b80 /libavcodec | |
| parent | 58d380f9a7ce323d34976ef3720e3d19ca107112 (diff) | |
avcodec/mjpegdec: Support AV_PIX_FMT_YUV420P16 with upscale_h
Fixes assertion failure
Fixes: test42f.jpg
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mjpegdec.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index ea84d9afe9..b6e0e68391 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -1895,6 +1895,7 @@ int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, int start_code; int i, index; int ret = 0; + int is16bit; av_dict_free(&s->exif_metadata); av_freep(&s->stereo3d); @@ -2073,6 +2074,9 @@ fail: s->got_picture = 0; return ret; the_end: + + is16bit = av_pix_fmt_desc_get(s->avctx->pix_fmt)->comp[0].step_minus1; + if (s->upscale_h) { int p; av_assert0(avctx->pix_fmt == AV_PIX_FMT_YUVJ444P || @@ -2082,6 +2086,7 @@ the_end: avctx->pix_fmt == AV_PIX_FMT_YUVA444P || avctx->pix_fmt == AV_PIX_FMT_YUVJ420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P || + avctx->pix_fmt == AV_PIX_FMT_YUV420P16|| avctx->pix_fmt == AV_PIX_FMT_GBRAP ); avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &hshift, &vshift); @@ -2093,8 +2098,12 @@ the_end: if (p==1 || p==2) w >>= hshift; for (i = 0; i < s->chroma_height; i++) { - for (index = w - 1; index; index--) - line[index] = (line[index / 2] + line[(index + 1) / 2]) >> 1; + for (index = w - 1; index; index--) { + if (is16bit) + ((uint16_t*)line)[index] = (((uint16_t*)line)[index / 2] + ((uint16_t*)line)[(index + 1) / 2]) >> 1; + else + line[index] = (line[index / 2] + line[(index + 1) / 2]) >> 1; + } line += s->linesize[p]; } } |