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lavc/libtheoraenc: clarify comment about global_quality to quality conversion

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This commit is contained in:
Stefano Sabatini 2013-03-19 13:19:12 +01:00
parent b448c0a68d
commit 37fce84e27
1 changed files with 5 additions and 5 deletions
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10
libavcodec/libtheoraenc.c
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@ -207,11 +207,11 @@ static av_cold int encode_init(AVCodecContext* avc_context)
avcodec_get_chroma_sub_sample(avc_context->pix_fmt, &h->uv_hshift, &h->uv_vshift);
if (avc_context->flags & CODEC_FLAG_QSCALE) {
/* to be constant with the libvorbis implementation, clip global_quality to 0 - 10
Theora accepts a quality parameter p, which is:
* 0 <= p <=63
* an int value
*/
/* Clip global_quality in QP units to the [0 - 10] range
to be consistent with the libvorbis implementation.
Theora accepts a quality parameter which is an int value in
the [0 - 63] range.
*/
t_info.quality = av_clipf(avc_context->global_quality / (float)FF_QP2LAMBDA, 0, 10) * 6.3;
t_info.target_bitrate = 0;
} else {