[FFmpeg-cvslog] x86: h264qpel: Move stray comment to the right spot and clarify it

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Thu Jan 24 17:01:32 2013 +0100| [033a86f9bb6fd59ca71d4951b8e2e27cdc1b29d9] | committer: Diego Biurrun

x86: h264qpel: Move stray comment to the right spot and clarify it

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=033a86f9bb6fd59ca71d4951b8e2e27cdc1b29d9
---

 libavcodec/x86/dsputil_mmx.c |    2 --
 libavcodec/x86/h264_qpel.c   |    4 ++++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c
index f9da04f..f72500e 100644
--- a/libavcodec/x86/dsputil_mmx.c
+++ b/libavcodec/x86/dsputil_mmx.c
@@ -2181,8 +2181,6 @@ static void dsputil_init_avx(DSPContext *c, AVCodecContext *avctx, int mm_flags)
     const int bit_depth = avctx->bits_per_raw_sample;
 
     if (bit_depth == 10) {
-        // AVX implies !cache64.
-        // TODO: Port cache(32|64) detection from x264.
         if (CONFIG_H264CHROMA) {
             c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_avx;
             c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_avx;
diff --git a/libavcodec/x86/h264_qpel.c b/libavcodec/x86/h264_qpel.c
index 9157223..64af8fe 100644
--- a/libavcodec/x86/h264_qpel.c
+++ b/libavcodec/x86/h264_qpel.c
@@ -611,6 +611,10 @@ void ff_h264qpel_init_x86(H264QpelContext *c, int bit_depth)
     }
 
     if (EXTERNAL_AVX(mm_flags)) {
+        /* AVX implies 64 byte cache lines without the need to avoid unaligned
+         * memory accesses that cross the boundary between two cache lines.
+         * TODO: Port X264_CPU_CACHELINE_32/64 detection from x264 to avoid
+         * having to treat SSE2 functions with such properties as AVX. */
         if (bit_depth == 10) {
             H264_QPEL_FUNCS_10(1, 0, sse2);
             H264_QPEL_FUNCS_10(2, 0, sse2);