Merge remote-tracking branch 'origin/master' into combined

6 files changed, 133 insertions, 7 deletions

diff --git a/libavutil/avstring.c b/libavutil/avstring.c
index 2f00374176..e2422c0a59 100644
--- a/libavutil/avstring.c
+++ b/libavutil/avstring.c
@@ -69,11 +69,11 @@ char *av_strnstr(const char *haystack, const char *needle, size_t hay_length)
 {
     size_t needle_len = strlen(needle);
     if (!needle_len)
-        return haystack;
+        return (char*)haystack;
     while (hay_length >= needle_len) {
         hay_length--;
         if (!memcmp(haystack, needle, needle_len))
-            return haystack;
+            return (char*)haystack;
         haystack++;
     }
     return NULL;
diff --git a/libavutil/dict.c b/libavutil/dict.c
index 06f963cf62..967c9e2fff 100644
--- a/libavutil/dict.c
+++ b/libavutil/dict.c
@@ -94,10 +94,13 @@ int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags
             m->elems[m->count].value = (char*)(intptr_t)value;
         } else if (oldval && flags & AV_DICT_APPEND) {
             int len = strlen(oldval) + strlen(value) + 1;
-            if (!(oldval = av_realloc(oldval, len)))
+            char *newval = av_mallocz(len);
+            if (!newval)
                 return AVERROR(ENOMEM);
-            av_strlcat(oldval, value, len);
-            m->elems[m->count].value = oldval;
+            av_strlcat(newval, oldval, len);
+            av_freep(&oldval);
+            av_strlcat(newval, value, len);
+            m->elems[m->count].value = newval;
         } else
             m->elems[m->count].value = av_strdup(value);
         m->count++;
diff --git a/libavutil/eval.c b/libavutil/eval.c
index 22b491fef3..712d2f2678 100644
--- a/libavutil/eval.c
+++ b/libavutil/eval.c
@@ -467,7 +467,7 @@ static int parse_dB(AVExpr **e, Parser *p, int *sign)
        for example, -3dB is not the same as -(3dB) */
     if (*p->s == '-') {
         char *next;
-        strtod(p->s, &next);
+        double av_unused v = strtod(p->s, &next);
         if (next != p->s && next[0] == 'd' && next[1] == 'B') {
             *sign = 0;
             return parse_primary(e, p);
diff --git a/libavutil/mips/float_dsp_mips.c b/libavutil/mips/float_dsp_mips.c
index e39a4bf2bb..5211a265d4 100644
--- a/libavutil/mips/float_dsp_mips.c
+++ b/libavutil/mips/float_dsp_mips.c
@@ -106,6 +106,43 @@ static void vector_fmul_mips(float *dst, const float *src0, const float *src1,
     }
 }
 
+static void vector_fmul_scalar_mips(float *dst, const float *src, float mul,
+                                 int len)
+{
+    float temp0, temp1, temp2, temp3;
+    float *local_src = (float*)src;
+    float *end = local_src + len;
+
+    /* loop unrolled 4 times */
+    __asm__ volatile(
+        ".set    push                             \n\t"
+        ".set    noreorder                        \n\t"
+    "1:                                           \n\t"
+        "lwc1    %[temp0],   0(%[src])            \n\t"
+        "lwc1    %[temp1],   4(%[src])            \n\t"
+        "lwc1    %[temp2],   8(%[src])            \n\t"
+        "lwc1    %[temp3],   12(%[src])           \n\t"
+        "addiu   %[dst],     %[dst],     16       \n\t"
+        "mul.s   %[temp0],   %[temp0],   %[mul]   \n\t"
+        "mul.s   %[temp1],   %[temp1],   %[mul]   \n\t"
+        "mul.s   %[temp2],   %[temp2],   %[mul]   \n\t"
+        "mul.s   %[temp3],   %[temp3],   %[mul]   \n\t"
+        "addiu   %[src],     %[src],     16       \n\t"
+        "swc1    %[temp0],   -16(%[dst])          \n\t"
+        "swc1    %[temp1],   -12(%[dst])          \n\t"
+        "swc1    %[temp2],   -8(%[dst])           \n\t"
+        "bne     %[src],     %[end],     1b       \n\t"
+        " swc1   %[temp3],   -4(%[dst])           \n\t"
+        ".set    pop                              \n\t"
+
+        : [temp0]"=&f"(temp0), [temp1]"=&f"(temp1),
+          [temp2]"=&f"(temp2), [temp3]"=&f"(temp3),
+          [dst]"+r"(dst), [src]"+r"(local_src)
+        : [end]"r"(end), [mul]"f"(mul)
+        : "memory"
+    );
+}
+
 static void vector_fmul_window_mips(float *dst, const float *src0,
         const float *src1, const float *win, int len)
 {
@@ -216,11 +253,91 @@ static void vector_fmul_window_mips(float *dst, const float *src0,
         );
     }
 }
+
+static void butterflies_float_mips(float *av_restrict v1, float *av_restrict v2,
+                                int len)
+{
+    float temp0, temp1, temp2, temp3, temp4;
+    float temp5, temp6, temp7, temp8, temp9;
+    float temp10, temp11, temp12, temp13, temp14, temp15;
+    int pom;
+    pom = (len >> 2)-1;
+
+    /* loop unrolled 4 times */
+    __asm__ volatile (
+        "lwc1     %[temp0],    0(%[v1])                 \n\t"
+        "lwc1     %[temp1],    4(%[v1])                 \n\t"
+        "lwc1     %[temp2],    8(%[v1])                 \n\t"
+        "lwc1     %[temp3],    12(%[v1])                \n\t"
+        "lwc1     %[temp4],    0(%[v2])                 \n\t"
+        "lwc1     %[temp5],    4(%[v2])                 \n\t"
+        "lwc1     %[temp6],    8(%[v2])                 \n\t"
+        "lwc1     %[temp7],    12(%[v2])                \n\t"
+        "beq      %[pom],      $zero,       2f          \n\t"
+    "1:                                                 \n\t"
+        "sub.s    %[temp8],    %[temp0],    %[temp4]    \n\t"
+        "add.s    %[temp9],    %[temp0],    %[temp4]    \n\t"
+        "sub.s    %[temp10],   %[temp1],    %[temp5]    \n\t"
+        "add.s    %[temp11],   %[temp1],    %[temp5]    \n\t"
+        "sub.s    %[temp12],   %[temp2],    %[temp6]    \n\t"
+        "add.s    %[temp13],   %[temp2],    %[temp6]    \n\t"
+        "sub.s    %[temp14],   %[temp3],    %[temp7]    \n\t"
+        "add.s    %[temp15],   %[temp3],    %[temp7]    \n\t"
+        "addiu    %[v1],       %[v1],       16          \n\t"
+        "addiu    %[v2],       %[v2],       16          \n\t"
+        "addiu    %[pom],      %[pom],      -1          \n\t"
+        "lwc1     %[temp0],    0(%[v1])                 \n\t"
+        "lwc1     %[temp1],    4(%[v1])                 \n\t"
+        "lwc1     %[temp2],    8(%[v1])                 \n\t"
+        "lwc1     %[temp3],    12(%[v1])                \n\t"
+        "lwc1     %[temp4],    0(%[v2])                 \n\t"
+        "lwc1     %[temp5],    4(%[v2])                 \n\t"
+        "lwc1     %[temp6],    8(%[v2])                 \n\t"
+        "lwc1     %[temp7],    12(%[v2])                \n\t"
+        "swc1     %[temp9],    -16(%[v1])               \n\t"
+        "swc1     %[temp8],    -16(%[v2])               \n\t"
+        "swc1     %[temp11],   -12(%[v1])               \n\t"
+        "swc1     %[temp10],   -12(%[v2])               \n\t"
+        "swc1     %[temp13],   -8(%[v1])                \n\t"
+        "swc1     %[temp12],   -8(%[v2])                \n\t"
+        "swc1     %[temp15],   -4(%[v1])                \n\t"
+        "swc1     %[temp14],   -4(%[v2])                \n\t"
+        "bgtz     %[pom],      1b                       \n\t"
+    "2:                                                 \n\t"
+        "sub.s    %[temp8],    %[temp0],    %[temp4]    \n\t"
+        "add.s    %[temp9],    %[temp0],    %[temp4]    \n\t"
+        "sub.s    %[temp10],   %[temp1],    %[temp5]    \n\t"
+        "add.s    %[temp11],   %[temp1],    %[temp5]    \n\t"
+        "sub.s    %[temp12],   %[temp2],    %[temp6]    \n\t"
+        "add.s    %[temp13],   %[temp2],    %[temp6]    \n\t"
+        "sub.s    %[temp14],   %[temp3],    %[temp7]    \n\t"
+        "add.s    %[temp15],   %[temp3],    %[temp7]    \n\t"
+        "swc1     %[temp9],    0(%[v1])                 \n\t"
+        "swc1     %[temp8],    0(%[v2])                 \n\t"
+        "swc1     %[temp11],   4(%[v1])                 \n\t"
+        "swc1     %[temp10],   4(%[v2])                 \n\t"
+        "swc1     %[temp13],   8(%[v1])                 \n\t"
+        "swc1     %[temp12],   8(%[v2])                 \n\t"
+        "swc1     %[temp15],   12(%[v1])                \n\t"
+        "swc1     %[temp14],   12(%[v2])                \n\t"
+
+        : [v1]"+r"(v1), [v2]"+r"(v2), [pom]"+r"(pom), [temp0] "=&f" (temp0),
+          [temp1]"=&f"(temp1), [temp2]"=&f"(temp2), [temp3]"=&f"(temp3),
+          [temp4]"=&f"(temp4), [temp5]"=&f"(temp5), [temp6]"=&f"(temp6),
+          [temp7]"=&f"(temp7), [temp8]"=&f"(temp8), [temp9]"=&f"(temp9),
+          [temp10]"=&f"(temp10), [temp11]"=&f"(temp11), [temp12]"=&f"(temp12),
+          [temp13]"=&f"(temp13), [temp14]"=&f"(temp14), [temp15]"=&f"(temp15)
+        :
+        : "memory"
+    );
+}
 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */
 
 void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp) {
 #if HAVE_INLINE_ASM && HAVE_MIPSFPU
     fdsp->vector_fmul = vector_fmul_mips;
+    fdsp->vector_fmul_scalar  = vector_fmul_scalar_mips;
     fdsp->vector_fmul_window = vector_fmul_window_mips;
+    fdsp->butterflies_float = butterflies_float_mips;
 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */
 }
diff --git a/libavutil/parseutils.c b/libavutil/parseutils.c
index ca40569e6a..73e400ac62 100644
--- a/libavutil/parseutils.c
+++ b/libavutil/parseutils.c
@@ -109,6 +109,12 @@ static const VideoSizeAbbr video_size_abbrs[] = {
     { "hd480",     852, 480 },
     { "hd720",    1280, 720 },
     { "hd1080",   1920,1080 },
+    { "2k",       2048,1080 }, /* Digital Cinema System Specification */
+    { "2kflat",   1998,1080 },
+    { "2kscope",  2048, 858 },
+    { "4k",       4096,2160 }, /* Digital Cinema System Specification */
+    { "4kflat",   3996,2160 },
+    { "4kscope",  4096,1716 },
 };
 
 static const VideoRateAbbr video_rate_abbrs[]= {
diff --git a/libavutil/version.h b/libavutil/version.h
index 2b574f57ff..3d53261291 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -76,7 +76,7 @@
 
 #define LIBAVUTIL_VERSION_MAJOR  52
 #define LIBAVUTIL_VERSION_MINOR  17
-#define LIBAVUTIL_VERSION_MICRO 100
+#define LIBAVUTIL_VERSION_MICRO 101
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                                LIBAVUTIL_VERSION_MINOR, \