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: Ronald S. Bultje <rsbultje@gmail.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/libavcodec/arm/h264pred_init_arm.c b/libavcodec/arm/h264pred_init_arm.c
index 3f1c5c64fd..cae32d7567 100644
--- a/libavcodec/arm/h264pred_init_arm.c
+++ b/libavcodec/arm/h264pred_init_arm.c
@@ -42,8 +42,13 @@ void ff_pred8x8_0lt_dc_neon(uint8_t *src, int stride);
 void ff_pred8x8_l00_dc_neon(uint8_t *src, int stride);
 void ff_pred8x8_0l0_dc_neon(uint8_t *src, int stride);
 
-static void ff_h264_pred_init_neon(H264PredContext *h, int codec_id)
+static void ff_h264_pred_init_neon(H264PredContext *h, int codec_id, const int bit_depth)
 {
+    const int high_depth = bit_depth > 8;
+
+    if (high_depth)
+        return;
+
     h->pred8x8[VERT_PRED8x8     ] = ff_pred8x8_vert_neon;
     h->pred8x8[HOR_PRED8x8      ] = ff_pred8x8_hor_neon;
     if (codec_id != CODEC_ID_VP8)
@@ -69,7 +74,7 @@ static void ff_h264_pred_init_neon(H264PredContext *h, int codec_id)
         h->pred16x16[PLANE_PRED8x8  ] = ff_pred16x16_plane_neon;
 }
 
-void ff_h264_pred_init_arm(H264PredContext *h, int codec_id)
+void ff_h264_pred_init_arm(H264PredContext *h, int codec_id, bit_depth)
 {
-    if (HAVE_NEON)    ff_h264_pred_init_neon(h, codec_id);
+    if (HAVE_NEON)    ff_h264_pred_init_neon(h, codec_id, bit_depth);
 }