Merge remote-tracking branch 'qatar/master'

* qatar/master:
  configure: fix tests for 2-arg math functions
  doc: git-howto: Clarify comment about pushing series of commits
  ivi_common: Drop unused function parameter from decode_band()
  cook: Remove some silly Doxygen comments
  cook: Remove senseless maybe_reformat_buffer32() function
  cook: cosmetics: Better names for joint_decode() function parameters
  cook: cosmetics: Better name for ccpl COOKSubpacket member
  doxygen: Add av_alloc_size to list of predefined macros
  doxygen: Drop some pointless entries from PREDEFINED macros list
  h263: avoid memcpys over array bound in motion vector caching for obmc

Conflicts:
	configure
	doc/git-howto.texi
	libavcodec/cook.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

5 files changed, 55 insertions, 83 deletions

diff --git a/configure b/configure
index 65562516a8..7f9fe4f0b7 100755
--- a/configure
+++ b/configure
@@ -852,23 +852,13 @@ EOF
 check_mathfunc(){
     log check_mathfunc "$@"
     func=$1
-    shift
-    disable $func
-    check_ld "cc" "$@" <<EOF && enable $func
-#include <math.h>
-float foo(float f) { return $func(f); }
-int main(void){ return (int) foo; }
-EOF
-}
-
-check_math2func(){
-    log check_math2func "$@"
-    func=$1
-    shift
+    narg=$2
+    shift 2
+    test $narg = 2 && args="f, g" || args="f"
     disable $func
     check_ld "cc" "$@" <<EOF && enable $func
 #include <math.h>
-float foo(float f) { return $func(f, f); }
+float foo(float f, float g) { return $func($args); }
 int main(void){ return (int) foo; }
 EOF
 }
@@ -1279,6 +1269,7 @@ HAVE_LIST_PUB='
 
 MATH_FUNCS="
     atanf
+    atan2f
     cbrtf
     cosf
     exp2
@@ -1286,6 +1277,7 @@ MATH_FUNCS="
     expf
     isinf
     isnan
+    ldexpf
     llrint
     llrintf
     log2
@@ -1293,6 +1285,7 @@ MATH_FUNCS="
     log10f
     lrint
     lrintf
+    powf
     rint
     round
     roundf
@@ -1301,12 +1294,6 @@ MATH_FUNCS="
     truncf
 "
 
-MATH2_FUNCS="
-    atan2f
-    ldexpf
-    powf
-"
-
 HAVE_LIST="
     $ARCH_EXT_LIST
     $(add_suffix _external $ARCH_EXT_LIST)
@@ -1315,7 +1302,6 @@ HAVE_LIST="
     $HAVE_LIST_PUB
     $THREADS_LIST
     $MATH_FUNCS
-    $MATH2_FUNCS
     aligned_malloc
     aligned_stack
     alsa_asoundlib_h
@@ -3671,12 +3657,12 @@ check_lib math.h sin -lm && LIBM="-lm"
 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
 enabled vaapi && require vaapi va/va.h vaInitialize -lva
 
-for func in $MATH_FUNCS; do
-    check_mathfunc $func
-done
+atan2f_args=2
+ldexpf_args=2
+powf_args=2
 
-for func in $MATH2_FUNCS; do
-    check_math2func $func
+for func in $MATH_FUNCS; do
+    eval check_mathfunc $func \${${func}_args:-1}
 done
 
 # these are off by default, so fail if requested and not available
diff --git a/doc/Doxyfile b/doc/Doxyfile
index 2627a7e23c..69e9d25c35 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -1373,14 +1373,9 @@ INCLUDE_FILE_PATTERNS  =
 # instead of the = operator.
 
 PREDEFINED             = "__attribute__(x)=" \
-                         "RENAME(x)=x ## _TMPL" \
-                         "DEF(x)=x ## _TMPL" \
-                         HAVE_AV_CONFIG_H \
-                         HAVE_MMX \
-                         HAVE_MMXEXT \
-                         HAVE_AMD3DNOW \
                          "DECLARE_ALIGNED(a,t,n)=t n" \
-                         "offsetof(x,y)=0x42"
+                         "offsetof(x,y)=0x42" \
+                         av_alloc_size \
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 # this tag can be used to specify a list of macro names that should be expanded.
diff --git a/libavcodec/cook.c b/libavcodec/cook.c
index ac2d502a7a..ea8aad62ef 100644
--- a/libavcodec/cook.c
+++ b/libavcodec/cook.c
@@ -79,16 +79,16 @@ typedef struct {
     int                 samples_per_channel;
     int                 log2_numvector_size;
     unsigned int        channel_mask;
-    VLC                 ccpl;                 ///< channel coupling
+    VLC                 channel_coupling;
     int                 joint_stereo;
     int                 bits_per_subpacket;
     int                 bits_per_subpdiv;
     int                 total_subbands;
-    int                 numvector_size;       ///< 1 << log2_numvector_size;
+    int                 numvector_size;       // 1 << log2_numvector_size;
 
     float               mono_previous_buffer1[1024];
     float               mono_previous_buffer2[1024];
-    /** gain buffers */
+
     cook_gains          gains1;
     cook_gains          gains2;
     int                 gain_1[9];
@@ -205,7 +205,8 @@ static av_cold int init_cook_vlc_tables(COOKContext *q)
 
     for (i = 0; i < q->num_subpackets; i++) {
         if (q->subpacket[i].joint_stereo == 1) {
-            result |= init_vlc(&q->subpacket[i].ccpl, 6, (1 << q->subpacket[i].js_vlc_bits) - 1,
+            result |= init_vlc(&q->subpacket[i].channel_coupling, 6,
+                               (1 << q->subpacket[i].js_vlc_bits) - 1,
                                ccpl_huffbits[q->subpacket[i].js_vlc_bits - 2], 1, 1,
                                ccpl_huffcodes[q->subpacket[i].js_vlc_bits - 2], 2, 2, 0);
             av_log(q->avctx, AV_LOG_DEBUG, "subpacket %i Joint-stereo VLC used.\n", i);
@@ -240,17 +241,11 @@ static av_cold int init_cook_mlt(COOKContext *q)
     return 0;
 }
 
-static const float *maybe_reformat_buffer32(COOKContext *q, const float *ptr, int n)
-{
-    if (1)
-        return ptr;
-}
-
 static av_cold void init_cplscales_table(COOKContext *q)
 {
     int i;
     for (i = 0; i < 5; i++)
-        q->cplscales[i] = maybe_reformat_buffer32(q, cplscales[i], (1 << (i + 2)) - 1);
+        q->cplscales[i] = cplscales[i];
 }
 
 /*************** init functions end ***********/
@@ -304,9 +299,6 @@ static inline int decode_bytes(const uint8_t *inbuffer, uint8_t *out, int bytes)
     return off;
 }
 
-/**
- * Cook uninit
- */
 static av_cold int cook_decode_close(AVCodecContext *avctx)
 {
     int i;
@@ -326,7 +318,7 @@ static av_cold int cook_decode_close(AVCodecContext *avctx)
     for (i = 0; i < 7; i++)
         ff_free_vlc(&q->sqvh[i]);
     for (i = 0; i < q->num_subpackets; i++)
-        ff_free_vlc(&q->subpacket[i].ccpl);
+        ff_free_vlc(&q->subpacket[i].channel_coupling);
 
     av_log(avctx, AV_LOG_DEBUG, "Memory deallocated.\n");
 
@@ -636,12 +628,6 @@ static void decode_vectors(COOKContext *q, COOKSubpacket *p, int *category,
 }
 
 
-/**
- * function for decoding mono data
- *
- * @param q                 pointer to the COOKContext
- * @param mlt_buffer        pointer to mlt coefficients
- */
 static int mono_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer)
 {
     int category_index[128] = { 0 };
@@ -756,7 +742,6 @@ static void imlt_gain(COOKContext *q, float *inbuffer,
  *
  * @param q                 pointer to the COOKContext
  * @param decouple_tab      decoupling array
- *
  */
 static int decouple_info(COOKContext *q, COOKSubpacket *p, int *decouple_tab)
 {
@@ -771,7 +756,9 @@ static int decouple_info(COOKContext *q, COOKSubpacket *p, int *decouple_tab)
 
     if (vlc)
         for (i = 0; i < length; i++)
-            decouple_tab[start + i] = get_vlc2(&q->gb, p->ccpl.table, p->ccpl.bits, 2);
+            decouple_tab[start + i] = get_vlc2(&q->gb,
+                                               p->channel_coupling.table,
+                                               p->channel_coupling.bits, 2);
     else
         for (i = 0; i < length; i++) {
             int v = get_bits(&q->gb, p->js_vlc_bits);
@@ -817,8 +804,8 @@ static void decouple_float(COOKContext *q,
  * @param mlt_buffer1       pointer to left channel mlt coefficients
  * @param mlt_buffer2       pointer to right channel mlt coefficients
  */
-static int joint_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer1,
-                        float *mlt_buffer2)
+static int joint_decode(COOKContext *q, COOKSubpacket *p,
+                        float *mlt_buffer_left, float *mlt_buffer_right)
 {
     int i, j, res;
     int decouple_tab[SUBBAND_SIZE] = { 0 };
@@ -830,8 +817,8 @@ static int joint_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer1,
     memset(decode_buffer, 0, sizeof(q->decode_buffer_0));
 
     /* Make sure the buffers are zeroed out. */
-    memset(mlt_buffer1, 0, 1024 * sizeof(*mlt_buffer1));
-    memset(mlt_buffer2, 0, 1024 * sizeof(*mlt_buffer2));
+    memset(mlt_buffer_left,  0, 1024 * sizeof(*mlt_buffer_left));
+    memset(mlt_buffer_right, 0, 1024 * sizeof(*mlt_buffer_right));
     if ((res = decouple_info(q, p, decouple_tab)) < 0)
         return res;
     if ((res = mono_decode(q, p, decode_buffer)) < 0)
@@ -839,8 +826,8 @@ static int joint_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer1,
     /* The two channels are stored interleaved in decode_buffer. */
     for (i = 0; i < p->js_subband_start; i++) {
         for (j = 0; j < SUBBAND_SIZE; j++) {
-            mlt_buffer1[i * 20 + j] = decode_buffer[i * 40 + j];
-            mlt_buffer2[i * 20 + j] = decode_buffer[i * 40 + 20 + j];
+            mlt_buffer_left[i  * 20 + j] = decode_buffer[i * 40 + j];
+            mlt_buffer_right[i * 20 + j] = decode_buffer[i * 40 + 20 + j];
         }
     }
 
@@ -853,7 +840,8 @@ static int joint_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer1,
         cplscale = q->cplscales[p->js_vlc_bits - 2];  // choose decoupler table
         f1 = cplscale[decouple_tab[cpl_tmp] + 1];
         f2 = cplscale[idx];
-        q->decouple(q, p, i, f1, f2, decode_buffer, mlt_buffer1, mlt_buffer2);
+        q->decouple(q, p, i, f1, f2, decode_buffer,
+                    mlt_buffer_left, mlt_buffer_right);
         idx = (1 << p->js_vlc_bits) - 1;
     }
 
@@ -968,11 +956,6 @@ static int decode_subpacket(COOKContext *q, COOKSubpacket *p,
 }
 
 
-/**
- * Cook frame decoding
- *
- * @param avctx     pointer to the AVCodecContext
- */
 static int cook_decode_frame(AVCodecContext *avctx, void *data,
                              int *got_frame_ptr, AVPacket *avpkt)
 {
diff --git a/libavcodec/ivi_common.c b/libavcodec/ivi_common.c
index 17d8af4102..e261dca418 100644
--- a/libavcodec/ivi_common.c
+++ b/libavcodec/ivi_common.c
@@ -650,7 +650,7 @@ void ff_ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, int dst_pitch)
  *  @param[in]      avctx  ptr to the AVCodecContext
  *  @return         result code: 0 = OK, -1 = error
  */
-static int decode_band(IVI45DecContext *ctx, int plane_num,
+static int decode_band(IVI45DecContext *ctx,
                        IVIBandDesc *band, AVCodecContext *avctx)
 {
     int         result, i, t, idx1, idx2, pos;
@@ -791,7 +791,7 @@ int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         ctx->buf_invalid[ctx->dst_buf] = 1;
         for (p = 0; p < 3; p++) {
             for (b = 0; b < ctx->planes[p].num_bands; b++) {
-                result = decode_band(ctx, p, &ctx->planes[p].bands[b], avctx);
+                result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);
                 if (result) {
                     av_log(avctx, AV_LOG_ERROR,
                            "Error while decoding band: %d, plane: %d\n", b, p);
diff --git a/libavcodec/mpegvideo_motion.c b/libavcodec/mpegvideo_motion.c
index 2e5f7e611e..261fc1c405 100644
--- a/libavcodec/mpegvideo_motion.c
+++ b/libavcodec/mpegvideo_motion.c
@@ -639,37 +639,45 @@ static av_always_inline void MPV_motion_internal(MpegEncContext *s,
     prefetch_motion(s, ref_picture, dir);
 
     if(!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B){
-        int16_t mv_cache[4][4][2];
+        LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
+        AVFrame *cur_frame = &s->current_picture.f;
         const int xy= s->mb_x + s->mb_y*s->mb_stride;
         const int mot_stride= s->b8_stride;
         const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
 
         av_assert2(!s->mb_skipped);
 
-        memcpy(mv_cache[1][1], s->current_picture.f.motion_val[0][mot_xy             ], sizeof(int16_t) * 4);
-        memcpy(mv_cache[2][1], s->current_picture.f.motion_val[0][mot_xy + mot_stride], sizeof(int16_t) * 4);
-        memcpy(mv_cache[3][1], s->current_picture.f.motion_val[0][mot_xy + mot_stride], sizeof(int16_t) * 4);
+        AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy    ]);
+        AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
 
-        if (mb_y == 0 || IS_INTRA(s->current_picture.f.mb_type[xy - s->mb_stride])) {
-            memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
+        AV_COPY32(mv_cache[2][1], cur_frame->motion_val[0][mot_xy + mot_stride    ]);
+        AV_COPY32(mv_cache[2][2], cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
+
+        AV_COPY32(mv_cache[3][1], cur_frame->motion_val[0][mot_xy + mot_stride    ]);
+        AV_COPY32(mv_cache[3][2], cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
+
+        if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
+            AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
+            AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
         }else{
-            memcpy(mv_cache[0][1], s->current_picture.f.motion_val[0][mot_xy - mot_stride], sizeof(int16_t) * 4);
+            AV_COPY32(mv_cache[0][1], cur_frame->motion_val[0][mot_xy - mot_stride    ]);
+            AV_COPY32(mv_cache[0][2], cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
         }
 
-        if (mb_x == 0 || IS_INTRA(s->current_picture.f.mb_type[xy - 1])) {
+        if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
             AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
             AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
         }else{
-            AV_COPY32(mv_cache[1][0], s->current_picture.f.motion_val[0][mot_xy - 1]);
-            AV_COPY32(mv_cache[2][0], s->current_picture.f.motion_val[0][mot_xy - 1 + mot_stride]);
+            AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
+            AV_COPY32(mv_cache[2][0], cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
         }
 
-        if (mb_x + 1 >= s->mb_width || IS_INTRA(s->current_picture.f.mb_type[xy + 1])) {
+        if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
             AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
             AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
         }else{
-            AV_COPY32(mv_cache[1][3], s->current_picture.f.motion_val[0][mot_xy + 2]);
-            AV_COPY32(mv_cache[2][3], s->current_picture.f.motion_val[0][mot_xy + 2 + mot_stride]);
+            AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
+            AV_COPY32(mv_cache[2][3], cur_frame->motion_val[0][mot_xy + 2 + mot_stride]);
         }
 
         mx = 0;