mirror of https://git.ffmpeg.org/ffmpeg.git
lavc: make avcodec_open2() fail when the timebase is not set for encoding
Many encoders use it. There is also a divide by the timebase lower in this function, which would crash when it is not set.
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@ -994,6 +994,13 @@ FF_DISABLE_DEPRECATION_WARNINGS
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}
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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if (avctx->time_base.num <= 0 || avctx->time_base.den <= 0) {
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av_log(avctx, AV_LOG_ERROR, "The encoder timebase is not set.\n");
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ret = AVERROR(EINVAL);
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goto free_and_end;
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}
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if (avctx->codec->sample_fmts) {
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for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) {
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if (avctx->sample_fmt == avctx->codec->sample_fmts[i])
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