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avcodec/ffv1enc: Fix size of first slice
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit cff1c0edaa797eca96663d9b83e4b8c1b609ff19) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -1222,7 +1222,6 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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FFV1Context *f = avctx->priv_data;
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RangeCoder *const c = &f->slice_context[0]->c;
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AVFrame *const p = f->picture.f;
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int used_count = 0;
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uint8_t keystate = 128;
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uint8_t *buf_p;
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int i, ret;
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@ -1307,11 +1306,17 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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}
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}
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for (i = 1; i < f->slice_count; i++) {
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for (i = 0; i < f->slice_count; i++) {
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FFV1Context *fs = f->slice_context[i];
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uint8_t *start = pkt->data + (pkt->size - used_count) * (int64_t)i / f->slice_count;
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uint8_t *start = pkt->data + pkt->size * (int64_t)i / f->slice_count;
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int len = pkt->size / f->slice_count;
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ff_init_range_encoder(&fs->c, start, len);
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if (i) {
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ff_init_range_encoder(&fs->c, start, len);
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} else {
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av_assert0(fs->c.bytestream_end >= fs->c.bytestream_start + len);
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av_assert0(fs->c.bytestream < fs->c.bytestream_start + len);
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fs->c.bytestream_end = fs->c.bytestream_start + len;
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}
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}
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avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL,
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f->slice_count, sizeof(void *));
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