mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/mpegpicture: Use union for b_scratchpad and rd_scratchpad
These pointers point to the same buffers, so one can just use a union for them and avoid synchronising one of them. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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@ -175,7 +175,6 @@ int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me,
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sc->linesize = linesizeabs;
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me->temp = me->scratchpad;
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sc->rd_scratchpad = me->scratchpad;
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sc->b_scratchpad = me->scratchpad;
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sc->obmc_scratchpad = me->scratchpad + 16;
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@ -33,9 +33,11 @@
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typedef struct ScratchpadContext {
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uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data
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uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
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uint8_t *obmc_scratchpad;
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union {
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uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
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uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
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};
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int linesize; ///< linesize that the buffers in this context have been allocated for
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} ScratchpadContext;
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@ -440,7 +440,6 @@ static void free_duplicate_context(MpegEncContext *s)
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av_freep(&s->sc.edge_emu_buffer);
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av_freep(&s->me.scratchpad);
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s->me.temp =
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s->sc.rd_scratchpad =
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s->sc.b_scratchpad =
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s->sc.obmc_scratchpad = NULL;
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s->sc.linesize = 0;
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