Merge remote-tracking branch 'qatar/master'

* qatar/master: (28 commits)
  dfa: use more meaningful return codes
  eatgv: check vector_bits
  eatgv: check motion vectors
  Mark a number of variables only used in av_dlog() calls as av_unused.
  dvdec: drop const qualifier from variable to eliminate a warning
  avcodec: Improve comment for thread_safe_callbacks to avoid misinterpretation.
  tests/utils: don't ignore the return value of fwrite()
  lavfi/formats: use sizeof(var) instead of sizeof(type).
  lavfi: remove avfilter_default_config_input_link() declaration
  lavfi: always enable the scale filter and depend on sws.
  vf_split: support user-specifiable number of outputs.
  avconv: remove stray useless comment.
  mpegmux: add stuffing to avoid incomplete PCM frames
  rtsp: avoid const warnings from strtol() call
  avserver: check return value of ftruncate()
  lagarith: make offset array type unsigned
  dfa: add some checks to ensure that decoder won't write past frame end
  aacps: NEON optimisations
  aacps: align some arrays
  aacps: move some loops to function pointers
  ...

Conflicts:
	configure
	doc/filters.texi
	libavcodec/dfa.c
	libavcodec/eatgv.c
	libavfilter/Makefile
	libavfilter/allfilters.c
	libavfilter/avfilter.h
	libavfilter/formats.c
	libavfilter/vf_split.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

configure

@@ -1697,6 +1697,7 @@ yadif_filter_deps="gpl"
 
 # libraries
 avdevice_deps="avcodec avformat"
+avfilter_deps="swscale"
 avformat_deps="avcodec"
 postproc_deps="gpl"
 

doc/filters.texi

@@ -2735,8 +2735,16 @@ faster due to better use of the memory cache.
 
 @section split
 
-Pass on the input video to two outputs. Both outputs are identical to
-the input video.
+Split input video into several identical outputs.
+
+The filter accepts a single parameter which specifies the number of outputs. If
+unspecified, it defaults to 2.
+
+For example
+@example
+ffmpeg -i INPUT -filter_complex split=5 OUTPUT
+@end example
+will create 5 copies of the input video.
 
 For example:
 @example

ffmpeg.c

@@ -728,7 +728,6 @@ static int configure_video_filters(FilterGraph *fg)
     InputStream  *ist = fg->inputs[0]->ist;
     OutputStream *ost = fg->outputs[0]->ost;
     AVFilterContext *last_filter, *filter;
-    /** filter graph containing all filters including input & output */
     AVCodecContext *codec = ost->st->codec;
     enum PixelFormat *pix_fmts = choose_pixel_fmts(ost);
     AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();

ffserver.c

@@ -2585,8 +2585,11 @@ static int http_start_receive_data(HTTPContext *c)
     if (c->stream->truncate) {
         /* truncate feed file */
         ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
-        ftruncate(c->feed_fd, FFM_PACKET_SIZE);
         http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
+        if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
+            http_log("Error truncating feed file: %s\n", strerror(errno));
+            return -1;
+        }
     } else {
         if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
             http_log("Error reading write index from feed file: %s\n", strerror(errno));

libavcodec/Makefile

@@ -57,7 +57,7 @@ OBJS-$(CONFIG_A64MULTI_ENCODER)        += a64multienc.o elbg.o
 OBJS-$(CONFIG_A64MULTI5_ENCODER)       += a64multienc.o elbg.o
 OBJS-$(CONFIG_AAC_DECODER)             += aacdec.o aactab.o aacsbr.o aacps.o \
                                           aacadtsdec.o mpeg4audio.o kbdwin.o \
-                                          sbrdsp.o
+                                          sbrdsp.o aacpsdsp.o
 OBJS-$(CONFIG_AAC_ENCODER)             += aacenc.o aaccoder.o    \
                                           aacpsy.o aactab.o      \
                                           psymodel.o iirfilter.o \

libavcodec/aacps.h

@@ -24,6 +24,7 @@
 
 #include <stdint.h>
 
+#include "aacpsdsp.h"
 #include "avcodec.h"
 #include "get_bits.h"
 
@@ -60,18 +61,19 @@ typedef struct {
     int    is34bands;
     int    is34bands_old;
 
-    float  in_buf[5][44][2];
-    float  delay[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2];
-    float  ap_delay[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2];
-    float  peak_decay_nrg[34];
-    float  power_smooth[34];
-    float  peak_decay_diff_smooth[34];
-    float  H11[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
-    float  H12[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
-    float  H21[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
-    float  H22[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, float, in_buf)[5][44][2];
+    DECLARE_ALIGNED(16, float, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2];
+    DECLARE_ALIGNED(16, float, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2];
+    DECLARE_ALIGNED(16, float, peak_decay_nrg)[34];
+    DECLARE_ALIGNED(16, float, power_smooth)[34];
+    DECLARE_ALIGNED(16, float, peak_decay_diff_smooth)[34];
+    DECLARE_ALIGNED(16, float, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, float, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, float, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, float, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
     int8_t opd_hist[PS_MAX_NR_IIDICC];
     int8_t ipd_hist[PS_MAX_NR_IIDICC];
+    PSDSPContext dsp;
 } PSContext;
 
 void ff_ps_init(void);

libavcodec/aacps_tablegen.c

@@ -69,23 +69,23 @@ int main(void)
     write_float_3d_array(HB, 46, 8, 4);
     printf("};\n");
 
-    printf("static const float f20_0_8[8][7][2] = {\n");
-    write_float_3d_array(f20_0_8, 8, 7, 2);
+    printf("static const DECLARE_ALIGNED(16, float, f20_0_8)[8][8][2] = {\n");
+    write_float_3d_array(f20_0_8, 8, 8, 2);
     printf("};\n");
-    printf("static const float f34_0_12[12][7][2] = {\n");
-    write_float_3d_array(f34_0_12, 12, 7, 2);
+    printf("static const DECLARE_ALIGNED(16, float, f34_0_12)[12][8][2] = {\n");
+    write_float_3d_array(f34_0_12, 12, 8, 2);
     printf("};\n");
-    printf("static const float f34_1_8[8][7][2] = {\n");
-    write_float_3d_array(f34_1_8, 8, 7, 2);
+    printf("static const DECLARE_ALIGNED(16, float, f34_1_8)[8][8][2] = {\n");
+    write_float_3d_array(f34_1_8, 8, 8, 2);
     printf("};\n");
-    printf("static const float f34_2_4[4][7][2] = {\n");
-    write_float_3d_array(f34_2_4, 4, 7, 2);
+    printf("static const DECLARE_ALIGNED(16, float, f34_2_4)[4][8][2] = {\n");
+    write_float_3d_array(f34_2_4, 4, 8, 2);
     printf("};\n");
 
-    printf("static const float Q_fract_allpass[2][50][3][2] = {\n");
+    printf("static const DECLARE_ALIGNED(16, float, Q_fract_allpass)[2][50][3][2] = {\n");
     write_float_4d_array(Q_fract_allpass, 2, 50, 3, 2);
     printf("};\n");
-    printf("static const float phi_fract[2][50][2] = {\n");
+    printf("static const DECLARE_ALIGNED(16, float, phi_fract)[2][50][2] = {\n");
     write_float_3d_array(phi_fract, 2, 50, 2);
     printf("};\n");
 

libavcodec/aacps_tablegen.h

@@ -31,6 +31,7 @@
 #else
 #include "libavutil/common.h"
 #include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
 #define NR_ALLPASS_BANDS20 30
 #define NR_ALLPASS_BANDS34 50
 #define PS_AP_LINKS 3
@@ -38,12 +39,12 @@ static float pd_re_smooth[8*8*8];
 static float pd_im_smooth[8*8*8];
 static float HA[46][8][4];
 static float HB[46][8][4];
-static float f20_0_8 [ 8][7][2];
-static float f34_0_12[12][7][2];
-static float f34_1_8 [ 8][7][2];
-static float f34_2_4 [ 4][7][2];
-static float Q_fract_allpass[2][50][3][2];
-static float phi_fract[2][50][2];
+static DECLARE_ALIGNED(16, float, f20_0_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, float, f34_0_12)[12][8][2];
+static DECLARE_ALIGNED(16, float, f34_1_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, float, f34_2_4) [ 4][8][2];
+static DECLARE_ALIGNED(16, float, Q_fract_allpass)[2][50][3][2];
+static DECLARE_ALIGNED(16, float, phi_fract)[2][50][2];
 
 static const float g0_Q8[] = {
     0.00746082949812f, 0.02270420949825f, 0.04546865930473f, 0.07266113929591f,
@@ -65,7 +66,7 @@ static const float g2_Q4[] = {
      0.16486303567403f,  0.23279856662996f, 0.25f
 };
 
-static void make_filters_from_proto(float (*filter)[7][2], const float *proto, int bands)
+static void make_filters_from_proto(float (*filter)[8][2], const float *proto, int bands)
 {
     int q, n;
     for (q = 0; q < bands; q++) {

libavcodec/aacpsdsp.c

+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "aacpsdsp.h"
+
+static void ps_add_squares_c(float *dst, const float (*src)[2], int n)
+{
+    int i;
+    for (i = 0; i < n; i++)
+        dst[i] += src[i][0] * src[i][0] + src[i][1] * src[i][1];
+}
+
+static void ps_mul_pair_single_c(float (*dst)[2], float (*src0)[2], float *src1,
+                                 int n)
+{
+    int i;
+    for (i = 0; i < n; i++) {
+        dst[i][0] = src0[i][0] * src1[i];
+        dst[i][1] = src0[i][1] * src1[i];
+    }
+}
+
+static void ps_hybrid_analysis_c(float (*out)[2], float (*in)[2],
+                                 const float (*filter)[8][2],
+                                 int stride, int n)
+{
+    int i, j;
+
+    for (i = 0; i < n; i++) {
+        float sum_re = filter[i][6][0] * in[6][0];
+        float sum_im = filter[i][6][0] * in[6][1];
+
+        for (j = 0; j < 6; j++) {
+            float in0_re = in[j][0];
+            float in0_im = in[j][1];
+            float in1_re = in[12-j][0];
+            float in1_im = in[12-j][1];
+            sum_re += filter[i][j][0] * (in0_re + in1_re) -
+                      filter[i][j][1] * (in0_im - in1_im);
+            sum_im += filter[i][j][0] * (in0_im + in1_im) +
+                      filter[i][j][1] * (in0_re - in1_re);
+        }
+        out[i * stride][0] = sum_re;
+        out[i * stride][1] = sum_im;
+    }
+}
+
+static void ps_hybrid_analysis_ileave_c(float (*out)[32][2], float L[2][38][64],
+                                        int i, int len)
+{
+    int j;
+
+    for (; i < 64; i++) {
+        for (j = 0; j < len; j++) {
+            out[i][j][0] = L[0][j][i];
+            out[i][j][1] = L[1][j][i];
+        }
+    }
+}
+
+static void ps_hybrid_synthesis_deint_c(float out[2][38][64],
+                                        float (*in)[32][2],
+                                        int i, int len)
+{
+    int n;
+
+    for (; i < 64; i++) {
+        for (n = 0; n < len; n++) {
+            out[0][n][i] = in[i][n][0];
+            out[1][n][i] = in[i][n][1];
+        }
+    }
+}
+
+static void ps_decorrelate_c(float (*out)[2], float (*delay)[2],
+                             float (*ap_delay)[PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2],
+                             const float phi_fract[2], float (*Q_fract)[2],
+                             const float *transient_gain,
+                             float g_decay_slope,
+                             int len)
+{
+    static const float a[] = { 0.65143905753106f,
+                               0.56471812200776f,
+                               0.48954165955695f };
+    float ag[PS_AP_LINKS];
+    int m, n;
+
+    for (m = 0; m < PS_AP_LINKS; m++)
+        ag[m] = a[m] * g_decay_slope;
+
+    for (n = 0; n < len; n++) {
+        float in_re = delay[n][0] * phi_fract[0] - delay[n][1] * phi_fract[1];
+        float in_im = delay[n][0] * phi_fract[1] + delay[n][1] * phi_fract[0];
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            float a_re                = ag[m] * in_re;
+            float a_im                = ag[m] * in_im;
+            float link_delay_re       = ap_delay[m][n+2-m][0];
+            float link_delay_im       = ap_delay[m][n+2-m][1];
+            float fractional_delay_re = Q_fract[m][0];
+            float fractional_delay_im = Q_fract[m][1];
+            float apd_re = in_re;
+            float apd_im = in_im;
+            in_re = link_delay_re * fractional_delay_re -
+                    link_delay_im * fractional_delay_im - a_re;
+            in_im = link_delay_re * fractional_delay_im +
+                    link_delay_im * fractional_delay_re - a_im;
+            ap_delay[m][n+5][0] = apd_re + ag[m] * in_re;
+            ap_delay[m][n+5][1] = apd_im + ag[m] * in_im;
+        }
+        out[n][0] = transient_gain[n] * in_re;
+        out[n][1] = transient_gain[n] * in_im;
+    }
+}
+
+static void ps_stereo_interpolate_c(float (*l)[2], float (*r)[2],
+                                    float h[2][4], float h_step[2][4],
+                                    int len)
+{
+    float h0 = h[0][0];
+    float h1 = h[0][1];
+    float h2 = h[0][2];
+    float h3 = h[0][3];
+    float hs0 = h_step[0][0];
+    float hs1 = h_step[0][1];
+    float hs2 = h_step[0][2];
+    float hs3 = h_step[0][3];
+    int n;
+
+    for (n = 0; n < len; n++) {
+        //l is s, r is d
+        float l_re = l[n][0];
+        float l_im = l[n][1];
+        float r_re = r[n][0];
+        float r_im = r[n][1];
+        h0 += hs0;
+        h1 += hs1;
+        h2 += hs2;
+        h3 += hs3;
+        l[n][0] = h0 * l_re + h2 * r_re;
+        l[n][1] = h0 * l_im + h2 * r_im;
+        r[n][0] = h1 * l_re + h3 * r_re;
+        r[n][1] = h1 * l_im + h3 * r_im;
+    }
+}
+
+static void ps_stereo_interpolate_ipdopd_c(float (*l)[2], float (*r)[2],
+                                           float h[2][4], float h_step[2][4],
+                                           int len)
+{
+    float h00  = h[0][0],      h10  = h[1][0];
+    float h01  = h[0][1],      h11  = h[1][1];
+    float h02  = h[0][2],      h12  = h[1][2];
+    float h03  = h[0][3],      h13  = h[1][3];
+    float hs00 = h_step[0][0], hs10 = h_step[1][0];
+    float hs01 = h_step[0][1], hs11 = h_step[1][1];
+    float hs02 = h_step[0][2], hs12 = h_step[1][2];
+    float hs03 = h_step[0][3], hs13 = h_step[1][3];
+    int n;
+
+    for (n = 0; n < len; n++) {
+        //l is s, r is d
+        float l_re = l[n][0];
+        float l_im = l[n][1];
+        float r_re = r[n][0];
+        float r_im = r[n][1];
+        h00 += hs00;
+        h01 += hs01;
+        h02 += hs02;
+        h03 += hs03;
+        h10 += hs10;
+        h11 += hs11;
+        h12 += hs12;
+        h13 += hs13;
+
+        l[n][0] = h00 * l_re + h02 * r_re - h10 * l_im - h12 * r_im;
+        l[n][1] = h00 * l_im + h02 * r_im + h10 * l_re + h12 * r_re;
+        r[n][0] = h01 * l_re + h03 * r_re - h11 * l_im - h13 * r_im;
+        r[n][1] = h01 * l_im + h03 * r_im + h11 * l_re + h13 * r_re;
+    }
+}
+
+av_cold void ff_psdsp_init(PSDSPContext *s)
+{
+    s->add_squares            = ps_add_squares_c;
+    s->mul_pair_single        = ps_mul_pair_single_c;
+    s->hybrid_analysis        = ps_hybrid_analysis_c;
+    s->hybrid_analysis_ileave = ps_hybrid_analysis_ileave_c;
+    s->hybrid_synthesis_deint = ps_hybrid_synthesis_deint_c;
+    s->decorrelate            = ps_decorrelate_c;
+    s->stereo_interpolate[0]  = ps_stereo_interpolate_c;
+    s->stereo_interpolate[1]  = ps_stereo_interpolate_ipdopd_c;
+
+    if (ARCH_ARM)
+        ff_psdsp_init_arm(s);
+}

libavcodec/aacpsdsp.h

+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LIBAVCODEC_AACPSDSP_H
+#define LIBAVCODEC_AACPSDSP_H
+
+#define PS_QMF_TIME_SLOTS 32
+#define PS_AP_LINKS 3
+#define PS_MAX_AP_DELAY 5
+
+typedef struct PSDSPContext {
+    void (*add_squares)(float *dst, const float (*src)[2], int n);
+    void (*mul_pair_single)(float (*dst)[2], float (*src0)[2], float *src1,
+                            int n);
+    void (*hybrid_analysis)(float (*out)[2], float (*in)[2],
+                            const float (*filter)[8][2],
+                            int stride, int n);
+    void (*hybrid_analysis_ileave)(float (*out)[32][2], float L[2][38][64],
+                                   int i, int len);
+    void (*hybrid_synthesis_deint)(float out[2][38][64], float (*in)[32][2],
+                                   int i, int len);
+    void (*decorrelate)(float (*out)[2], float (*delay)[2],
+                        float (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
+                        const float phi_fract[2], float (*Q_fract)[2],
+                        const float *transient_gain,
+                        float g_decay_slope,
+                        int len);
+    void (*stereo_interpolate[2])(float (*l)[2], float (*r)[2],
+                                  float h[2][4], float h_step[2][4],
+                                  int len);
+} PSDSPContext;
+
+void ff_psdsp_init(PSDSPContext *s);
+void ff_psdsp_init_arm(PSDSPContext *s);
+
+#endif /* LIBAVCODEC_AACPSDSP_H */

libavcodec/arm/Makefile

 OBJS-$(CONFIG_AC3DSP)                  += arm/ac3dsp_init_arm.o         \
                                           arm/ac3dsp_arm.o
 
-OBJS-$(CONFIG_AAC_DECODER)             += arm/sbrdsp_init_arm.o
+OBJS-$(CONFIG_AAC_DECODER)             += arm/sbrdsp_init_arm.o         \
+                                          arm/aacpsdsp_init_arm.o
 
 OBJS-$(CONFIG_DCA_DECODER)             += arm/dcadsp_init_arm.o         \
 
@@ -59,7 +60,8 @@ NEON-OBJS-$(CONFIG_H264PRED)           += arm/h264pred_neon.o           \
 
 NEON-OBJS-$(CONFIG_AC3DSP)             += arm/ac3dsp_neon.o
 
-NEON-OBJS-$(CONFIG_AAC_DECODER)        += arm/sbrdsp_neon.o
+NEON-OBJS-$(CONFIG_AAC_DECODER)        += arm/sbrdsp_neon.o             \
+                                          arm/aacpsdsp_neon.o
 
 NEON-OBJS-$(CONFIG_DCA_DECODER)        += arm/dcadsp_neon.o             \
                                           arm/synth_filter_neon.o       \

libavcodec/arm/aacpsdsp_init_arm.c

+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/arm/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/aacpsdsp.h"
+
+void ff_ps_add_squares_neon(float *dst, const float (*src)[2], int n);
+void ff_ps_mul_pair_single_neon(float (*dst)[2], float (*src0)[2],
+                                float *src1, int n);
+void ff_ps_hybrid_analysis_neon(float (*out)[2], float (*in)[2],
+                                const float (*filter)[8][2],
+                                int stride, int n);
+void ff_ps_hybrid_analysis_ileave_neon(float (*out)[32][2], float L[2][38][64],
+                                       int i, int len);
+void ff_ps_hybrid_synthesis_deint_neon(float out[2][38][64], float (*in)[32][2],
+                                       int i, int len);
+void ff_ps_decorrelate_neon(float (*out)[2], float (*delay)[2],
+                            float (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
+                            const float phi_fract[2], float (*Q_fract)[2],
+                            const float *transient_gain, float g_decay_slope,
+                            int len);
+void ff_ps_stereo_interpolate_neon(float (*l)[2], float (*r)[2],
+                                   float h[2][4], float h_step[2][4],
+                                   int len);
+
+av_cold void ff_psdsp_init_arm(PSDSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->add_squares            = ff_ps_add_squares_neon;
+        s->mul_pair_single        = ff_ps_mul_pair_single_neon;
+        s->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_neon;
+        s->hybrid_analysis        = ff_ps_hybrid_analysis_neon;
+        s->stereo_interpolate[0]  = ff_ps_stereo_interpolate_neon;
+    }
+}

libavcodec/arm/aacpsdsp_neon.S

+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "asm.S"
+
+function ff_ps_add_squares_neon, export=1
+        mov             r3,  r0
+        sub             r2,  r2,  #4
+        vld1.32         {q0},     [r1,:128]!
+        vmul.f32        q0,  q0,  q0
+        vld1.32         {q2},     [r1,:128]!
+        vmul.f32        q2,  q2,  q2
+        vld1.32         {q1},     [r0,:128]!
+1:
+        vpadd.f32       d6,  d0,  d1
+        vld1.32         {q0},     [r1,:128]!
+        vpadd.f32       d7,  d4,  d5
+        vmul.f32        q0,  q0,  q0
+        vld1.32         {q2},     [r1,:128]!
+        vadd.f32        q3,  q1,  q3
+        vld1.32         {q1},     [r0,:128]!
+        vmul.f32        q2,  q2,  q2
+        vst1.32         {q3},     [r3,:128]!
+        subs            r2,  r2,  #4
+        bgt             1b
+        vpadd.f32       d6,  d0,  d1
+        vpadd.f32       d7,  d4,  d5
+        vadd.f32        q1,  q1,  q3
+        vst1.32         {q1},     [r3,:128]!
+        bx              lr
+endfunc
+
+function ff_ps_mul_pair_single_neon, export=1
+        sub             r3,  r3,  #4
+        tst             r1,  #8
+        bne             2f
+        vld1.32         {q0},     [r1,:128]!
+1:
+        vld1.32         {q3},     [r2,:128]!
+        vmul.f32        d4,  d0,  d6[0]
+        vmul.f32        d5,  d1,  d6[1]
+        vld1.32         {q1},     [r1,:128]!
+        vmul.f32        d6,  d2,  d7[0]
+        vmul.f32        d7,  d3,  d7[1]
+        vld1.32         {q0},     [r1,:128]!
+        vst1.32         {q2,q3},  [r0,:128]!
+        subs            r3,  r3,  #4
+        bgt             1b
+        vld1.32         {q3},     [r2,:128]!
+        vmul.f32        d4,  d0,  d6[0]
+        vmul.f32        d5,  d1,  d6[1]
+        vld1.32         {q1},     [r1,:128]!
+        vmul.f32        d6,  d2,  d7[0]
+        vmul.f32        d7,  d3,  d7[1]
+        vst1.32         {q2,q3},  [r0,:128]!
+        bx              lr
+2:
+        vld1.32         {d0},     [r1,:64]!
+        vld1.32         {d1,d2},  [r1,:128]!
+1:
+        vld1.32         {q3},     [r2,:128]!
+        vmul.f32        d4,  d0,  d6[0]
+        vmul.f32        d5,  d1,  d6[1]
+        vld1.32         {d0,d1},  [r1,:128]!
+        vmul.f32        d6,  d2,  d7[0]
+        vmul.f32        d7,  d0,  d7[1]
+        vmov            d0,  d1
+        vld1.32         {d1,d2},  [r1,:128]!
+        vst1.32         {q2,q3},  [r0,:128]!
+        subs            r3,  r3,  #4
+        bgt             1b
+        vld1.32         {q3},     [r2,:128]!
+        vmul.f32        d4,  d0,  d6[0]
+        vmul.f32        d5,  d1,  d6[1]
+        vld1.32         {d0},     [r1,:64]!
+        vmul.f32        d6,  d2,  d7[0]
+        vmul.f32        d7,  d0,  d7[1]
+        vst1.32         {q2,q3},  [r0,:128]!
+        bx              lr
+endfunc
+
+function ff_ps_hybrid_synthesis_deint_neon, export=1
+        push            {r4-r8,lr}
+        add             r0,  r0,  r2,  lsl #2
+        add             r1,  r1,  r2,  lsl #5+1+2
+        rsb             r2,  r2,  #64
+        mov             r5,  #64*4
+        mov             lr,  r0
+        add             r4,  r0,  #38*64*4
+        mov             r12, r3
+2:
+        vld1.32         {d0,d1},  [r1,:128]!
+        vst1.32         {d0[0]},  [lr,:32], r5
+        vst1.32         {d0[1]},  [r4,:32], r5
+        vst1.32         {d1[0]},  [lr,:32], r5
+        vst1.32         {d1[1]},  [r4,:32], r5
+        subs            r12, r12, #2
+        bgt             2b
+        add             r0,  r0,  #4
+        sub             r2,  r2,  #1
+        tst             r2,  #2
+        bne             6f
+1:
+        mov             lr,  r0
+        add             r4,  r0,  #38*64*4
+        add             r6,  r1,  #  32*2*4
+        add             r7,  r1,  #2*32*2*4
+        add             r8,  r1,  #3*32*2*4
+        mov             r12, r3
+2:
+        vld1.32         {d0,d1},  [r1,:128]!
+        vld1.32         {d2,d3},  [r6,:128]!
+        vld1.32         {d4,d5},  [r7,:128]!
+        vld1.32         {d6,d7},  [r8,:128]!
+        vst4.32         {d0[0],d2[0],d4[0],d6[0]}, [lr,:128], r5
+        vst4.32         {d0[1],d2[1],d4[1],d6[1]}, [r4,:128], r5
+        vst4.32         {d1[0],d3[0],d5[0],d7[0]}, [lr,:128], r5
+        vst4.32         {d1[1],d3[1],d5[1],d7[1]}, [r4,:128], r5
+        subs            r12, r12, #2
+        bgt             2b
+        add             r0,  r0,  #16
+        add             r1,  r1,  #3*32*2*4
+        subs            r2,  r2,  #4
+        bgt             1b
+        pop             {r4-r8,pc}
+6:
+        mov             lr,  r0
+        add             r4,  r0,  #38*64*4
+        add             r6,  r1,  #32*2*4
+        mov             r12, r3
+2:
+        vld1.32         {d0,d1},  [r1,:128]!
+        vld1.32         {d2,d3},  [r6,:128]!
+        vst2.32         {d0[0],d2[0]}, [lr,:64], r5
+        vst2.32         {d0[1],d2[1]}, [r4,:64], r5
+        vst2.32         {d1[0],d3[0]}, [lr,:64], r5
+        vst2.32         {d1[1],d3[1]}, [r4,:64], r5
+        subs            r12, r12, #2
+        bgt             2b
+        add             r0,  r0,  #8
+        add             r1,  r1,  #32*2*4
+        sub             r2,  r2,  #2
+        b               1b
+endfunc
+
+function ff_ps_hybrid_analysis_neon, export=1
+        vldm            r1,  {d19-d31}
+        ldr             r12, [sp]
+        lsl             r3,  r3,  #3
+        vadd.f32        d16, d19, d31
+        vadd.f32        d17, d20, d30
+        vsub.f32        d18, d19, d31
+        vsub.f32        d19, d20, d30
+        vsub.f32        d0,  d21, d29
+        vsub.f32        d1,  d22, d28
+        vadd.f32        d2,  d21, d29
+        vadd.f32        d3,  d22, d28
+        vadd.f32        d20, d23, d27
+        vadd.f32        d21, d24, d26
+        vsub.f32        d22, d23, d27
+        vsub.f32        d23, d24, d26
+        vmov.i32        d6,  #1<<31
+        vmov.i32        d7,  #0
+        vmov.f32        q14, #0.0
+        vmov.f32        q15, #0.0
+        vtrn.32         d6,  d7
+        vrev64.32       q9,  q9
+        vrev64.32       q0,  q0
+        vrev64.32       q11, q11
+        veor            q9,  q9,  q3
+        veor            q0,  q0,  q3
+        veor            q11, q11, q3
+        vld1.32         {q13},    [r2,:128]!
+        vtrn.32         q8,  q9
+        vtrn.32         q1,  q0
+        vtrn.32         q10, q11
+        sub             r12, r12, #1
+        vmla.f32        q14, q8,  q13
+        vld1.32         {q2},     [r2,:128]!
+        vmla.f32        q15, q9,  q13
+1:
+        vmla.f32        q14, q1,  q2
+        vld1.32         {q13},    [r2,:128]!
+        vmla.f32        q15, q0,  q2
+        vmla.f32        q14, q10, q13
+        vld1.32         {q2},     [r2,:128]!
+        vmla.f32        q15, q11, q13
+        vld1.32         {q13},    [r2,:128]!
+        vadd.f32        d6,  d28, d29
+        vadd.f32        d7,  d30, d31
+        vmov.f32        q14, #0.0
+        vmov.f32        q15, #0.0
+        vmla.f32        q14, q8,  q13
+        vpadd.f32       d6,  d6,  d7
+        vmla.f32        q15, q9,  q13
+        vmla.f32        d6,  d25, d4[0]
+        vld1.32         {q2},     [r2,:128]!
+        vst1.32         {d6},     [r0,:64], r3
+        subs            r12, r12, #1
+        bgt             1b
+        vmla.f32        q14, q1,  q2
+        vld1.32         {q13},    [r2,:128]!
+        vmla.f32        q15, q0,  q2
+        vmla.f32        q14, q10, q13
+        vld1.32         {q2},     [r2,:128]!
+        vmla.f32        q15, q11, q13
+        vadd.f32        d6,  d28, d29
+        vadd.f32        d7,  d30, d31
+        vpadd.f32       d6,  d6,  d7
+        vmla.f32        d6,  d25, d4[0]
+        vst1.32         {d6},     [r0,:64], r3
+        bx              lr
+endfunc
+
+function ff_ps_stereo_interpolate_neon, export=1
+        vld1.32         {q0},     [r2]
+        vld1.32         {q14},    [r3]
+        vadd.f32        q15, q14, q14
+        mov             r2,  r0
+        mov             r3,  r1
+        ldr             r12, [sp]
+        vadd.f32        q1,  q0,  q14
+        vadd.f32        q0,  q0,  q15
+        vld1.32         {q2},     [r0,:64]!
+        vld1.32         {q3},     [r1,:64]!
+        subs            r12, r12, #1
+        beq             2f
+1:
+        vmul.f32        d16, d4,  d2[0]
+        vmul.f32        d17, d5,  d0[0]
+        vmul.f32        d18, d4,  d2[1]
+        vmul.f32        d19, d5,  d0[1]
+        vmla.f32        d16, d6,  d3[0]
+        vmla.f32        d17, d7,  d1[0]
+        vmla.f32        d18, d6,  d3[1]
+        vmla.f32        d19, d7,  d1[1]
+        vadd.f32        q1,  q1,  q15
+        vadd.f32        q0,  q0,  q15
+        vld1.32         {q2},     [r0,:64]!
+        vld1.32         {q3},     [r1,:64]!
+        vst1.32         {q8},     [r2,:64]!
+        vst1.32         {q9},     [r3,:64]!
+        subs            r12, r12, #2
+        bgt             1b
+        it              lt
+        bxlt            lr
+2:
+        vmul.f32        d16, d4,  d2[0]
+        vmul.f32        d18, d4,  d2[1]
+        vmla.f32        d16, d6,  d3[0]
+        vmla.f32        d18, d6,  d3[1]
+        vst1.32         {d16},    [r2,:64]!
+        vst1.32         {d18},    [r3,:64]!
+        bx              lr
+endfunc

libavcodec/avcodec.h

@@ -2722,7 +2722,7 @@ typedef struct AVCodecContext {
 
     /**
      * Set by the client if its custom get_buffer() callback can be called
-     * from another thread, which allows faster multithreaded decoding.
+     * synchronously from another thread, which allows faster multithreaded decoding.
      * draw_horiz_band() will be called from other threads regardless of this setting.
      * Ignored if the default get_buffer() is used.
      * - encoding: Set by user.

libavcodec/dfa.c

@@ -49,7 +49,7 @@ static int decode_copy(GetByteContext *gb, uint8_t *frame, int width, int height
     const int size = width * height;
 
     if (bytestream2_get_buffer(gb, frame, size) != size)
-        return -1;
+        return AVERROR_INVALIDDATA;
     return 0;
 }
 
@@ -66,23 +66,23 @@ static int decode_tsw1(GetByteContext *gb, uint8_t *frame, int width, int height
     if (segments == 0 && offset == frame_end - frame)
         return 0; // skip frame
     if (frame_end - frame <= offset)
-        return -1;
+        return AVERROR_INVALIDDATA;
     frame += offset;
     while (segments--) {
         if (bytestream2_get_bytes_left(gb) < 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         if (mask == 0x10000) {
             bitbuf = bytestream2_get_le16u(gb);
             mask = 1;
         }
         if (frame_end - frame < 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         if (bitbuf & mask) {
             v = bytestream2_get_le16(gb);
             offset = (v & 0x1FFF) << 1;
             count = ((v >> 13) + 2) << 1;
             if (frame - frame_start < offset || frame_end - frame < count)
-                return -1;
+                return AVERROR_INVALIDDATA;
             av_memcpy_backptr(frame, offset, count);
             frame += count;
         } else {
@@ -105,19 +105,19 @@ static int decode_dsw1(GetByteContext *gb, uint8_t *frame, int width, int height
     segments = bytestream2_get_le16(gb);
     while (segments--) {
         if (bytestream2_get_bytes_left(gb) < 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         if (mask == 0x10000) {
             bitbuf = bytestream2_get_le16u(gb);
             mask = 1;
         }
         if (frame_end - frame < 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         if (bitbuf & mask) {
             v = bytestream2_get_le16(gb);
             offset = (v & 0x1FFF) << 1;
             count = ((v >> 13) + 2) << 1;
             if (frame - frame_start < offset || frame_end - frame < count)
-                return -1;
+                return AVERROR_INVALIDDATA;
             // can't use av_memcpy_backptr() since it can overwrite following pixels
             for (v = 0; v < count; v++)
                 frame[v] = frame[v - offset];
@@ -144,19 +144,19 @@ static int decode_dds1(GetByteContext *gb, uint8_t *frame, int width, int height
     segments = bytestream2_get_le16(gb);
     while (segments--) {
         if (bytestream2_get_bytes_left(gb) < 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         if (mask == 0x10000) {
             bitbuf = bytestream2_get_le16u(gb);
             mask = 1;
         }
         if (frame_end - frame < width + 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         if (bitbuf & mask) {
             v = bytestream2_get_le16(gb);
             offset = (v & 0x1FFF) << 2;
             count = ((v >> 13) + 2) << 1;
             if (frame - frame_start < offset || frame_end - frame < count*2 + width)
-                return -1;
+                return AVERROR_INVALIDDATA;
             for (i = 0; i < count; i++) {
                 frame[0] = frame[1] =
                 frame[width] = frame[width + 1] = frame[-offset];
@@ -166,6 +166,8 @@ static int decode_dds1(GetByteContext *gb, uint8_t *frame, int width, int height
         } else if (bitbuf & (mask << 1)) {
             frame += bytestream2_get_le16(gb) * 2;
         } else {
+            if (frame_end - frame < width + 2)
+                return AVERROR_INVALIDDATA;
             frame[0] = frame[1] =
             frame[width] = frame[width + 1] =  bytestream2_get_byte(gb);
             frame += 2;
@@ -186,32 +188,32 @@ static int decode_bdlt(GetByteContext *gb, uint8_t *frame, int width, int height
 
     count = bytestream2_get_le16(gb);
     if (count >= height)
-        return -1;
+        return AVERROR_INVALIDDATA;
     frame += width * count;
     lines = bytestream2_get_le16(gb);
     if (count + lines > height)
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     while (lines--) {
         if (bytestream2_get_bytes_left(gb) < 1)
-            return -1;
+            return AVERROR_INVALIDDATA;
         line_ptr = frame;
         frame += width;
         segments = bytestream2_get_byteu(gb);
         while (segments--) {
             if (frame - line_ptr <= bytestream2_peek_byte(gb))
-                return -1;
+                return AVERROR_INVALIDDATA;
             line_ptr += bytestream2_get_byte(gb);
             count = (int8_t)bytestream2_get_byte(gb);
             if (count >= 0) {
                 if (frame - line_ptr < count)
-                    return -1;
+                    return AVERROR_INVALIDDATA;
                 if (bytestream2_get_buffer(gb, line_ptr, count) != count)
-                    return -1;
+                    return AVERROR_INVALIDDATA;
             } else {
                 count = -count;
                 if (frame - line_ptr < count)
-                    return -1;
+                    return AVERROR_INVALIDDATA;
                 memset(line_ptr, bytestream2_get_byte(gb), count);
             }
             line_ptr += count;
@@ -226,20 +228,23 @@ static int decode_wdlt(GetByteContext *gb, uint8_t *frame, int width, int height
     const uint8_t *frame_end   = frame + width * height;
     uint8_t *line_ptr;
     int count, i, v, lines, segments;
+    int y = 0;
 
     lines = bytestream2_get_le16(gb);
     if (lines > height)
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     while (lines--) {
         if (bytestream2_get_bytes_left(gb) < 2)
-            return -1;
+            return AVERROR_INVALIDDATA;
         segments = bytestream2_get_le16u(gb);
         while ((segments & 0xC000) == 0xC000) {
+            unsigned skip_lines = -(int16_t)segments;
             unsigned delta = -((int16_t)segments * width);
-            if (frame_end - frame <= delta)
-                return -1;
+            if (frame_end - frame <= delta || y + lines + skip_lines > height)
+                return AVERROR_INVALIDDATA;
             frame    += delta;
+            y        += skip_lines;
             segments = bytestream2_get_le16(gb);
         }
         if (frame_end <= frame)
@@ -250,21 +255,22 @@ static int decode_wdlt(GetByteContext *gb, uint8_t *frame, int width, int height
         }
         line_ptr = frame;
         frame += width;
+        y++;
         while (segments--) {
             if (frame - line_ptr <= bytestream2_peek_byte(gb))
-                return -1;
+                return AVERROR_INVALIDDATA;
             line_ptr += bytestream2_get_byte(gb);
             count = (int8_t)bytestream2_get_byte(gb);
             if (count >= 0) {
                 if (frame - line_ptr < count * 2)
-                    return -1;
+                    return AVERROR_INVALIDDATA;
                 if (bytestream2_get_buffer(gb, line_ptr, count * 2) != count * 2)
-                    return -1;
+                    return AVERROR_INVALIDDATA;
                 line_ptr += count * 2;
             } else {
                 count = -count;
                 if (frame - line_ptr < count * 2)
-                    return -1;
+                    return AVERROR_INVALIDDATA;
                 v = bytestream2_get_le16(gb);
                 for (i = 0; i < count; i++)
                     bytestream_put_le16(&line_ptr, v);
@@ -277,7 +283,7 @@ static int decode_wdlt(GetByteContext *gb, uint8_t *frame, int width, int height
 
 static int decode_unk6(GetByteContext *gb, uint8_t *frame, int width, int height)
 {
-    return -1;
+    return AVERROR_PATCHWELCOME;
 }
 
 static int decode_blck(GetByteContext *gb, uint8_t *frame, int width, int height)
@@ -336,7 +342,7 @@ static int dfa_decode_frame(AVCodecContext *avctx,
             if (decoder[chunk_type - 2](&gb, s->frame_buf, avctx->width, avctx->height)) {
                 av_log(avctx, AV_LOG_ERROR, "Error decoding %s chunk\n",
                        chunk_name[chunk_type - 2]);
-                return -1;
+                return AVERROR_INVALIDDATA;
             }
         } else {
             av_log(avctx, AV_LOG_WARNING, "Ignoring unknown chunk type %d\n",

libavcodec/dvdec.c

@@ -313,7 +313,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
                                  void *data, int *data_size,
                                  AVPacket *avpkt)
 {
-    const uint8_t *buf = avpkt->data;
+    uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     DVVideoContext *s = avctx->priv_data;
     const uint8_t* vsc_pack;

libavcodec/eatgv.c

@@ -138,7 +138,6 @@ static int unpack(const uint8_t *src, const uint8_t *src_end, unsigned char *dst
  * @return 0 on success, -1 on critical buffer underflow
  */
 static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *buf_end){
-    unsigned last_frame_size = s->avctx->height*s->last_frame.linesize[0];
     int num_mvs;
     int num_blocks_raw;
     int num_blocks_packed;
@@ -158,7 +157,8 @@ static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *b
     buf += 12;
 
     if (vector_bits > MIN_CACHE_BITS || !vector_bits) {
-        av_log(s->avctx, AV_LOG_ERROR, "vector_bits %d invalid\n", vector_bits);
+        av_log(s->avctx, AV_LOG_ERROR,
+               "Invalid value for motion vector bits: %d\n", vector_bits);
         return AVERROR_INVALIDDATA;
     }
 
@@ -212,14 +212,17 @@ static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *b
         int src_stride;
 
         if (vector < num_mvs) {
-            unsigned offset =
-                (y*4 + s->mv_codebook[vector][1])*s->last_frame.linesize[0] +
-                 x*4 + s->mv_codebook[vector][0];
+            int mx = x * 4 + s->mv_codebook[vector][0];
+            int my = y * 4 + s->mv_codebook[vector][1];
 
-            src_stride = s->last_frame.linesize[0];
-            if (offset >= last_frame_size - (3*src_stride+3))
+            if (   mx < 0 || mx + 4 > s->avctx->width
+                || my < 0 || my + 4 > s->avctx->height) {
+                av_log(s->avctx, AV_LOG_ERROR, "MV %d %d out of picture\n", mx, my);
                 continue;
-            src = s->last_frame.data[0] + offset;
+            }
+
+            src = s->last_frame.data[0] + mx + my * s->last_frame.linesize[0];
+            src_stride = s->last_frame.linesize[0];
         }else{
             int offset = vector - num_mvs;
             if (offset<num_blocks_raw)

libavcodec/lagarith.c

@@ -467,7 +467,7 @@ static int lag_decode_frame(AVCodecContext *avctx,
     AVFrame *const p = &l->picture;
     uint8_t frametype = 0;
     uint32_t offset_gu = 0, offset_bv = 0, offset_ry = 9;
-    int offs[4];
+    uint32_t offs[4];
     uint8_t *srcs[4], *dst;
     int i, j, planes = 3;
 

libavcodec/wmalosslessdec.c

@@ -22,6 +22,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/attributes.h"
 #include "avcodec.h"
 #include "internal.h"
 #include "get_bits.h"
@@ -1045,7 +1046,7 @@ static int decode_frame(WmallDecodeCtx *s)
     /* no idea what these are for, might be the number of samples
        that need to be skipped at the beginning or end of a stream */
     if (get_bits1(gb)) {
-        int skip;
+        int av_unused skip;
 
         /* usually true for the first frame */
         if (get_bits1(gb)) {

libavfilter/Makefile

 include $(SUBDIR)../config.mak
 
 NAME = avfilter
-FFLIBS = avutil
+FFLIBS = avutil swscale
 
 FFLIBS-$(CONFIG_ACONVERT_FILTER)             += swresample
 FFLIBS-$(CONFIG_AMOVIE_FILTER)               += avformat avcodec
 FFLIBS-$(CONFIG_ARESAMPLE_FILTER)            += swresample
 FFLIBS-$(CONFIG_MOVIE_FILTER)                += avformat avcodec
 FFLIBS-$(CONFIG_PAN_FILTER)                  += swresample
-FFLIBS-$(CONFIG_REMOVELOGO_FILTER)           += swscale avformat avcodec
-FFLIBS-$(CONFIG_SCALE_FILTER)                += swscale
+FFLIBS-$(CONFIG_REMOVELOGO_FILTER)           += avformat avcodec
 FFLIBS-$(CONFIG_MP_FILTER)                   += avcodec postproc
 
 HEADERS = asrc_abuffer.h avcodec.h avfilter.h avfiltergraph.h buffersink.h buffersrc.h version.h vsrc_buffer.h
@@ -24,6 +23,7 @@ OBJS = allfilters.o                                                     \
        graphparser.o                                                    \
        src_buffer.o                                                     \
        transform.o                                                      \
+       vf_scale.o                                                       \
 
 OBJS-$(CONFIG_AVCODEC)                       += avcodec.o
 OBJS-$(CONFIG_AVFORMAT)                      += lavfutils.o
@@ -83,7 +83,6 @@ OBJS-$(CONFIG_OVERLAY_FILTER)                += vf_overlay.o
 OBJS-$(CONFIG_PAD_FILTER)                    += vf_pad.o
 OBJS-$(CONFIG_PIXDESCTEST_FILTER)            += vf_pixdesctest.o
 OBJS-$(CONFIG_REMOVELOGO_FILTER)             += bbox.o lswsutils.o lavfutils.o vf_removelogo.o
-OBJS-$(CONFIG_SCALE_FILTER)                  += vf_scale.o
 OBJS-$(CONFIG_SELECT_FILTER)                 += vf_select.o
 OBJS-$(CONFIG_SETDAR_FILTER)                 += vf_aspect.o
 OBJS-$(CONFIG_SETFIELD_FILTER)               += vf_setfield.o

libavfilter/allfilters.c

@@ -89,7 +89,6 @@ void avfilter_register_all(void)
     REGISTER_FILTER (PAD,         pad,         vf);
     REGISTER_FILTER (PIXDESCTEST, pixdesctest, vf);
     REGISTER_FILTER (REMOVELOGO,  removelogo,  vf);
-    REGISTER_FILTER (SCALE,       scale,       vf);
     REGISTER_FILTER (SELECT,      select,      vf);
     REGISTER_FILTER (SETDAR,      setdar,      vf);
     REGISTER_FILTER (SETFIELD,    setfield,    vf);
@@ -123,9 +122,14 @@ void avfilter_register_all(void)
     REGISTER_FILTER (BUFFERSINK,  buffersink,  vsink);
     REGISTER_FILTER (NULLSINK,    nullsink,    vsink);
 
-    /* vsrc_buffer is a part of public API => registered unconditionally */
+    /* those filters are part of public or internal API => registered
+     * unconditionally */
     {
         extern AVFilter avfilter_vsrc_buffer;
         avfilter_register(&avfilter_vsrc_buffer);
     }
+    {
+        extern AVFilter avfilter_vf_scale;
+        avfilter_register(&avfilter_vf_scale);
+    }
 }

libavfilter/formats.c

@@ -49,7 +49,7 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b)
 
     if (a == b) return a;
 
-    ret = av_mallocz(sizeof(AVFilterFormats));
+    ret = av_mallocz(sizeof(*ret));
 
     /* merge list of formats */
     ret->formats = av_malloc(sizeof(*ret->formats) * FFMIN(a->format_count,
@@ -74,7 +74,7 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b)
         return NULL;
     }
 
-    ret->refs = av_malloc(sizeof(AVFilterFormats**)*(a->refcount+b->refcount));
+    ret->refs = av_malloc(sizeof(*ret->refs) * (a->refcount + b->refcount));
 
     merge_ref(ret, a);
     merge_ref(ret, b);
@@ -158,7 +158,7 @@ int avfilter_add_format(AVFilterFormats **avff, int64_t fmt)
 {
     int64_t *fmts;
 
-    if (!(*avff) && !(*avff = av_mallocz(sizeof(AVFilterFormats))))
+    if (!(*avff) && !(*avff = av_mallocz(sizeof(**avff))))
         return AVERROR(ENOMEM);
 
     fmts = av_realloc((*avff)->formats,
@@ -217,7 +217,7 @@ AVFilterFormats *avfilter_make_all_packing_formats(void)
 void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
 {
     *ref = f;
-    f->refs = av_realloc(f->refs, sizeof(AVFilterFormats**) * ++f->refcount);
+    f->refs = av_realloc(f->refs, sizeof(*f->refs) * ++f->refcount);
     f->refs[f->refcount-1] = ref;
 }
 
@@ -239,9 +239,9 @@ void avfilter_formats_unref(AVFilterFormats **ref)
 
     idx = find_ref_index(ref);
 
-    if (idx >= 0)
-        memmove((*ref)->refs + idx, (*ref)->refs + idx+1,
-            sizeof(AVFilterFormats**) * ((*ref)->refcount-idx-1));
+    if(idx >= 0)
+        memmove((*ref)->refs + idx, (*ref)->refs + idx + 1,
+            sizeof(*(*ref)->refs) * ((*ref)->refcount - idx - 1));
 
     if (!--(*ref)->refcount) {
         av_free((*ref)->formats);

libavfilter/vf_split.c

@@ -25,24 +25,67 @@
 
 #include "avfilter.h"
 
+static int split_init(AVFilterContext *ctx, const char *args, void *opaque)
+{
+    int i, nb_outputs = 2;
+
+    if (args) {
+        nb_outputs = strtol(args, NULL, 0);
+        if (nb_outputs <= 0) {
+            av_log(ctx, AV_LOG_ERROR, "Invalid number of outputs specified: %d.\n",
+                   nb_outputs);
+            return AVERROR(EINVAL);
+        }
+    }
+
+    for (i = 0; i < nb_outputs; i++) {
+        char name[32];
+        AVFilterPad pad = { 0 };
+
+        snprintf(name, sizeof(name), "output%d", i);
+        pad.type = AVMEDIA_TYPE_VIDEO;
+        pad.name = av_strdup(name);
+
+        avfilter_insert_outpad(ctx, i, &pad);
+    }
+
+    return 0;
+}
+
+static void split_uninit(AVFilterContext *ctx)
+{
+    int i;
+
+    for (i = 0; i < ctx->output_count; i++)
+        av_freep(&ctx->output_pads[i].name);
+}
+
 static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
 {
-    avfilter_start_frame(inlink->dst->outputs[0],
-                         avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
-    avfilter_start_frame(inlink->dst->outputs[1],
-                         avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
+    AVFilterContext *ctx = inlink->dst;
+    int i;
+
+    for (i = 0; i < ctx->output_count; i++)
+        avfilter_start_frame(ctx->outputs[i],
+                             avfilter_ref_buffer(picref, ~AV_PERM_WRITE));
 }
 
 static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
 {
-    avfilter_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
-    avfilter_draw_slice(inlink->dst->outputs[1], y, h, slice_dir);
+    AVFilterContext *ctx = inlink->dst;
+    int i;
+
+    for (i = 0; i < ctx->output_count; i++)
+        avfilter_draw_slice(ctx->outputs[i], y, h, slice_dir);
 }
 
 static void end_frame(AVFilterLink *inlink)
 {
-    avfilter_end_frame(inlink->dst->outputs[0]);
-    avfilter_end_frame(inlink->dst->outputs[1]);
+    AVFilterContext *ctx = inlink->dst;
+    int i;
+
+    for (i = 0; i < ctx->output_count; i++)
+        avfilter_end_frame(ctx->outputs[i]);
 
     avfilter_unref_buffer(inlink->cur_buf);
 }
@@ -51,6 +94,9 @@ AVFilter avfilter_vf_split = {
     .name      = "split",
     .description = NULL_IF_CONFIG_SMALL("Pass on the input to two outputs."),
 
+    .init   = split_init,
+    .uninit = split_uninit,
+
     .inputs    = (const AVFilterPad[]) {{ .name      = "default",
                                     .type            = AVMEDIA_TYPE_VIDEO,
                                     .get_video_buffer= avfilter_null_get_video_buffer,
@@ -58,9 +104,5 @@ AVFilter avfilter_vf_split = {
                                     .draw_slice      = draw_slice,
                                     .end_frame       = end_frame, },
                                   { .name = NULL}},
-    .outputs   = (const AVFilterPad[]) {{ .name      = "output1",
-                                    .type            = AVMEDIA_TYPE_VIDEO, },
-                                  { .name            = "output2",
-                                    .type            = AVMEDIA_TYPE_VIDEO, },
-                                  { .name = NULL}},
+    .outputs   = (AVFilterPad[]) {{ .name = NULL}},
 };

libavformat/mov.c

@@ -25,6 +25,7 @@
 //#define DEBUG
 //#define MOV_EXPORT_ALL_METADATA
 
+#include "libavutil/attributes.h"
 #include "libavutil/audioconvert.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/intfloat.h"
@@ -627,8 +628,9 @@ static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     AVStream *st;
-    uint8_t version;
-    uint32_t flags, layout_tag, bitmap, num_descr, label_mask;
+    uint8_t av_unused version;
+    uint32_t av_unused flags;
+    uint32_t layout_tag, bitmap, num_descr, label_mask;
     int i;
 
     if (c->fc->nb_streams < 1)

libavformat/mpegenc.c

@@ -835,6 +835,12 @@ static int flush_packet(AVFormatContext *ctx, int stream_index,
 
         if (stuffing_size < 0)
             stuffing_size = 0;
+
+        if (startcode == PRIVATE_STREAM_1 && id >= 0xa0) {
+            if (payload_size < av_fifo_size(stream->fifo))
+                stuffing_size += payload_size % stream->lpcm_align;
+        }
+
         if (stuffing_size > 16) {    /*<=16 for MPEG-1, <=32 for MPEG-2*/
             pad_packet_bytes += stuffing_size;
             packet_size      -= stuffing_size;

libavformat/nsvdec.c

@@ -19,6 +19,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/attributes.h"
 #include "libavutil/mathematics.h"
 #include "avformat.h"
 #include "internal.h"
@@ -272,7 +273,7 @@ static int nsv_parse_NSVf_header(AVFormatContext *s)
 {
     NSVContext *nsv = s->priv_data;
     AVIOContext *pb = s->pb;
-    unsigned int file_size;
+    unsigned int av_unused file_size;
     unsigned int size;
     int64_t duration;
     int strings_size;
@@ -594,7 +595,7 @@ null_chunk_retry:
     av_dlog(s, "NSV CHUNK %d aux, %u bytes video, %d bytes audio\n", auxcount, vsize, asize);
     /* skip aux stuff */
     for (i = 0; i < auxcount; i++) {
-        uint32_t auxtag;
+        uint32_t av_unused auxtag;
         auxsize = avio_rl16(pb);
         auxtag = avio_rl32(pb);
         av_dlog(s, "NSV aux data: '%c%c%c%c', %d bytes\n",

libavformat/rtsp.c

@@ -637,16 +637,17 @@ static int rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
 #if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
 static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp)
 {
-    const char *p;
+    const char *q;
+    char *p;
     int v;
 
-    p = *pp;
-    p += strspn(p, SPACE_CHARS);
-    v = strtol(p, (char **)&p, 10);
+    q = *pp;
+    q += strspn(q, SPACE_CHARS);
+    v = strtol(q, &p, 10);
     if (*p == '-') {
         p++;
         *min_ptr = v;
-        v = strtol(p, (char **)&p, 10);
+        v = strtol(p, &p, 10);
         *max_ptr = v;
     } else {
         *min_ptr = v;

tests/utils.c

@@ -18,13 +18,22 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #define SCALEBITS 8
 #define ONE_HALF  (1 << (SCALEBITS - 1))
 #define FIX(x)    ((int) ((x) * (1L << SCALEBITS) + 0.5))
 
+#define err_if(expr) do {                                              \
+    if (expr) {                                                        \
+        fprintf(stderr, "%s\n", strerror(errno));                      \
+        exit(1);                                                       \
+    }                                                                  \
+} while (0)
+
 static void rgb24_to_yuv420p(unsigned char *lum, unsigned char *cb,
                              unsigned char *cr, unsigned char *src,
                              int width, int height)
@@ -110,14 +119,14 @@ static void pgmyuv_save(const char *filename, int w, int h,
 
     f = fopen(filename, "wb");
     fprintf(f, "P5\n%d %d\n%d\n", w, h * 3 / 2, 255);
-    fwrite(lum_tab, 1, w * h, f);
+    err_if(fwrite(lum_tab, 1, w * h, f) != w * h);
     h2 = h / 2;
     w2 = w / 2;
     cb = cb_tab;
     cr = cr_tab;
     for (i = 0; i < h2; i++) {
-        fwrite(cb, 1, w2, f);
-        fwrite(cr, 1, w2, f);
+        err_if(fwrite(cb, 1, w2, f) != w2);
+        err_if(fwrite(cr, 1, w2, f) != w2);
         cb += w2;
         cr += w2;
     }