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Forward interlaced field information from mov to ffv1 decoder.

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Only read the information for old ffv1, level/version 3 saves
the information in the bitstream.
Fixes a part of ticket #2190.

Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
This commit is contained in:
Tim.Nicholson 2013-08-02 23:31:40 +02:00 committed by Carl Eugen Hoyos
parent 401f6a7126
commit ae4c912bce
1 changed files with 7 additions and 0 deletions
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7
libavcodec/ffv1dec.c
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@ -784,6 +784,13 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
f->cur = p = f->picture.f;
if (f->version < 3 && avctx->field_order > AV_FIELD_PROGRESSIVE) {
/* we have interlaced material flagged in container */
p->interlaced_frame = 1;
if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)
p->top_field_first = 1;
}
f->avctx = avctx;
ff_init_range_decoder(c, buf, buf_size);
ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8);