x86: dsputil: Separate ff_add_hfyu_median_prediction_cmov from dsputil_mmx

[ffmpeg] / libavcodec / h264dsp.h

diff --git a/libavcodec/h264dsp.h b/libavcodec/h264dsp.h
index 757caf81622e8f88cf0d644f939e2af52ccab57f..6249ba70d58a1b4dc64cee54539d23bcd658362b 100644 (file)
--- a/libavcodec/h264dsp.h
+++ b/libavcodec/h264dsp.h
@@ -103,8 +103,17 @@ typedef struct H264DSPContext {
     void (*h264_chroma_dc_dequant_idct)(int16_t *block, int qmul);
 
     /* bypass-transform */
-    void (*h264_add_pixels8)(uint8_t *dst, int16_t *block, int stride);
-    void (*h264_add_pixels4)(uint8_t *dst, int16_t *block, int stride);
+    void (*h264_add_pixels8_clear)(uint8_t *dst, int16_t *block, int stride);
+    void (*h264_add_pixels4_clear)(uint8_t *dst, int16_t *block, int stride);
+
+    /**
+     * Search buf from the start for up to size bytes. Return the index
+     * of a zero byte, or >= size if not found. Ideally, use lookahead
+     * to filter out any zero bytes that are known to not be followed by
+     * one or more further zero bytes and a one byte. Better still, filter
+     * out any bytes that form the trailing_zero_8bits syntax element too.
+     */
+    int (*h264_find_start_code_candidate)(const uint8_t *buf, int size);
 } H264DSPContext;
 
 void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,