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authorOskar Arvidsson <oskar@irock.se>2011-03-29 17:48:59 +0200
committerMichael Niedermayer <michaelni@gmx.at>2011-04-10 22:33:42 +0200
commit8dbe5856410ee10ac4a9368105149efdacfac994 (patch)
tree6f332567746e6ef0bf33be492911263192153984 /libavcodec/alpha
parentd268bed209828923b891aeab7979d7ef14a730b2 (diff)
downloadffmpeg-streaming-8dbe5856410ee10ac4a9368105149efdacfac994.zip
ffmpeg-streaming-8dbe5856410ee10ac4a9368105149efdacfac994.tar.gz
Adds 8-, 9- and 10-bit versions of some of the functions used by the h264 decoder.
This patch lets e.g. dsputil_init chose dsp functions with respect to the bit depth to decode. The naming scheme of bit depth dependent functions is <base name>_<bit depth>[_<prefix>] (i.e. the old clear_blocks_c is now named clear_blocks_8_c). Note: Some of the functions for high bit depth is not dependent on the bit depth, but only on the pixel size. This leaves some room for optimizing binary size. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/alpha')
-rw-r--r--libavcodec/alpha/dsputil_alpha.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/alpha/dsputil_alpha.c b/libavcodec/alpha/dsputil_alpha.c
index b87367f..96e7030 100644
--- a/libavcodec/alpha/dsputil_alpha.c
+++ b/libavcodec/alpha/dsputil_alpha.c
@@ -270,6 +270,9 @@ static void put_pixels16_axp_asm(uint8_t *block, const uint8_t *pixels,
void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx)
{
+ const int h264_high_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;
+
+ if (!h264_high_depth) {
c->put_pixels_tab[0][0] = put_pixels16_axp_asm;
c->put_pixels_tab[0][1] = put_pixels16_x2_axp;
c->put_pixels_tab[0][2] = put_pixels16_y2_axp;
@@ -311,6 +314,7 @@ void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx)
c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels_xy2_axp;
c->clear_blocks = clear_blocks_axp;
+ }
/* amask clears all bits that correspond to present features. */
if (amask(AMASK_MVI) == 0) {
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