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avcodec/mpegvideo_enc: Limit bitrate tolerance to the representable

Fixes: error: 1.66789e+11 is outside the range of representable values of type 'int' Fixes: Ticket8201

Michael Niedermayer committed 5 years ago

Commit 245017e1 parent 48bbeac1 file · +5 −1Browse files

Unified · Split

libavcodec/mpegvideo_enc.c+5−1
@@ -463,9 +463,13 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx) · 462 unmodified lines
463 if (!s->fixed_qscale &&463 if (!s->fixed_qscale &&
464 avctx->bit_rate * av_q2d(avctx->time_base) >464 avctx->bit_rate * av_q2d(avctx->time_base) >
465 avctx->bit_rate_tolerance) {465 avctx->bit_rate_tolerance) {
466 double nbt = avctx->bit_rate * av_q2d(avctx->time_base) * 5;
466 av_log(avctx, AV_LOG_WARNING,467 av_log(avctx, AV_LOG_WARNING,
467 "bitrate tolerance %d too small for bitrate %"PRId64", overriding\n", avctx->bit_rate_tolerance, avctx->bit_rate);468 "bitrate tolerance %d too small for bitrate %"PRId64", overriding\n", avctx->bit_rate_tolerance, avctx->bit_rate);
468 avctx->bit_rate_tolerance = 5 * avctx->bit_rate * av_q2d(avctx->time_base);469 if (nbt <= INT_MAX) {
470 avctx->bit_rate_tolerance = nbt;
471 } else
472 avctx->bit_rate_tolerance = INT_MAX;
469 }473 }
470 474
471 if (avctx->rc_max_rate &&475 if (avctx->rc_max_rate &&

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