1. ffmpeg
  2. Commit 035c13e307daeb2a250b86f0ddef3b783a6393e5
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ffmpeg: warn if samples need to be converted in a lossy way for lossless encoders. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer authored on 2011/06/19 04:54:11
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ffmpeg.c
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@@ -617,6 +617,8 @@ static void choose_sample_fmt(AVStream *st, AVCodec *codec)
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                 break;
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         }
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         if (*p == -1) {
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+            if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
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+                av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
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             av_log(NULL, AV_LOG_WARNING,
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                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
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                    av_get_sample_fmt_name(st->codec->sample_fmt),