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| author | Arwa Arif <arwaarif1994@gmail.com> | 2015-01-10 01:43:42 +0530 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-01-10 02:22:02 +0100 |
| commit | 4df01d5d44cf65c141e5569c9cb6c57a77c70e39 (patch) | |
| tree | f3295e63789963015bcba9b41acb0c690700b049 /libavfilter/internal.h | |
| parent | aab74a38b8ba910a383dd82953061d5c42772ae9 (diff) | |
| download | ffmpeg-4df01d5d44cf65c141e5569c9cb6c57a77c70e39.tar.gz | |
avfilter: Factorize the use of norm_qscale in pp7
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavfilter/internal.h')
| -rw-r--r-- | libavfilter/internal.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libavfilter/internal.h b/libavfilter/internal.h index 308b115b89..d3a859cfe4 100644 --- a/libavfilter/internal.h +++ b/libavfilter/internal.h @@ -31,6 +31,7 @@ #include "thread.h" #include "version.h" #include "video.h" +#include "libavcodec/avcodec.h" #define POOL_SIZE 32 typedef struct AVFilterPool { @@ -374,4 +375,18 @@ AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name); */ void ff_filter_graph_remove_filter(AVFilterGraph *graph, AVFilterContext *filter); +/** + * Normalize the qscale factor + */ +static inline int ff_norm_qscale(int qscale, int type) +{ + switch (type) { + case FF_QSCALE_TYPE_MPEG1: return qscale; + case FF_QSCALE_TYPE_MPEG2: return qscale >> 1; + case FF_QSCALE_TYPE_H264: return qscale >> 2; + case FF_QSCALE_TYPE_VP56: return (63 - qscale + 2) >> 2; + } + return qscale; +} + #endif /* AVFILTER_INTERNAL_H */ |