lavc/jpeg2000: Signal lossless / bit-exact video stream.

c239fcb9 · Carl Eugen Hoyos · Michael Niedermayer · 32d8726a · c239fcb9
Commit c239fcb9 authored Jul 19, 2015 by Carl Eugen Hoyos Committed by Michael Niedermayer Jul 19, 2015
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jpeg2000dec.c libavcodec/jpeg2000dec.c +3 -0

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--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -469,6 +469,9 @@ static int get_cox(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c)
    /* set integer 9/7 DWT in case of BITEXACT flag */
    if ((s->avctx->flags & CODEC_FLAG_BITEXACT) && (c->transform == FF_DWT97))
        c->transform = FF_DWT97_INT;
+    else if (c->transform == FF_DWT53) {
+        s->avctx->properties |= FF_CODEC_PROPERTY_LOSSLESS;
+    }

    if (c->csty & JPEG2000_CSTY_PREC) {
        int i;