Merge remote-tracking branch 'qatar/master'

* qatar/master: (27 commits)
  asfdec: add side data to ASFStream packet instead of output packet.
  idroqdec: set AVFMTCTX_NOHEADER and create streams as they occur.
  nellymoserdec: Indicate that the decoder can handle changed parameters
  libavcodec: Apply parameter change side data when decoding audio
  flvdec: Add param change side data if the sample rate or channels have changed
  libavformat: Add a utility function for adding parameter change side data
  libavcodec: Define a side data type for parameter changes
  aacdec: Handle new extradata passed as side data
  flvdec: Export new AAC/H.264 extradata as side data on the next packet
  libavcodec: Define a side data type for new extradata
  flacdec: skip all track indices at once instead of looping.
  mxf: Add PictureEssenceCoding UL for V210.
  mxfdec: consider QuantizationBits between 17 and 24 to be pcm_s24*
  mxfenc: Add support for MPEG-2 MP@HL-14 in mxf container.
  mxf: H.264/MPEG-4 AVC Intra support
  configure: Show whether the safe bitstream reader is enabled
  x86: Tighten register constraints for decode_significance*_x86.
  Replace Subversion revisions in comments by Git hashes.
  h264_cabac: synchronize decode_significance_*_x86 conditionals
  w32threads: wait for the waked thread in pthread_cond_signal.
  ...

Conflicts:
	libavcodec/avcodec.h
	libavcodec/version.h
	libavformat/flvdec.c
	libavformat/utils.c
	tests/ref/lavfi/pixdesc
	tests/ref/lavfi/pixfmts_copy
	tests/ref/lavfi/pixfmts_null
	tests/ref/lavfi/pixfmts_scale
	tests/ref/lavfi/pixfmts_vflip

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

23 files changed, 450 insertions, 249 deletions

diff --git a/configure b/configure
index 50d811dd41..9978cb67eb 100755
--- a/configure
+++ b/configure
@@ -3311,6 +3311,7 @@ elif enabled gcc; then
     check_cflags -fno-tree-vectorize
     check_cflags -Werror=implicit-function-declaration
     check_cflags -Werror=missing-prototypes
+    check_cflags -Werror=declaration-after-statement
 elif enabled llvm_gcc; then
     check_cflags -mllvm -stack-alignment=16
 elif enabled clang; then
@@ -3406,6 +3407,7 @@ echo "postprocessing support    ${postproc-no}"
 echo "new filter support        ${avfilter-no}"
 echo "network support           ${network-no}"
 echo "threading support         ${thread_type-no}"
+echo "safe bitstream reader     ${safe_bitstream_reader-no}"
 echo "SDL support               ${sdl-no}"
 echo "Sun medialib support      ${mlib-no}"
 echo "libdxva2 enabled          ${dxva2-no}"
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 3183ff2373..c9ca0a66a2 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -722,16 +722,13 @@ static void decode_ltp(AACContext *ac, LongTermPrediction *ltp,
 
 /**
  * Decode Individual Channel Stream info; reference: table 4.6.
- *
- * @param   common_window   Channels have independent [0], or shared [1], Individual Channel Stream information.
  */
 static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics,
-                           GetBitContext *gb, int common_window)
+                           GetBitContext *gb)
 {
     if (get_bits1(gb)) {
         av_log(ac->avctx, AV_LOG_ERROR, "Reserved bit set.\n");
-        memset(ics, 0, sizeof(IndividualChannelStream));
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
     ics->window_sequence[1] = ics->window_sequence[0];
     ics->window_sequence[0] = get_bits(gb, 2);
@@ -766,13 +763,11 @@ static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics,
         if (ics->predictor_present) {
             if (ac->m4ac.object_type == AOT_AAC_MAIN) {
                 if (decode_prediction(ac, ics, gb)) {
-                    memset(ics, 0, sizeof(IndividualChannelStream));
-                    return -1;
+                    return AVERROR_INVALIDDATA;
                 }
             } else if (ac->m4ac.object_type == AOT_AAC_LC) {
                 av_log(ac->avctx, AV_LOG_ERROR, "Prediction is not allowed in AAC-LC.\n");
-                memset(ics, 0, sizeof(IndividualChannelStream));
-                return -1;
+                return AVERROR_INVALIDDATA;
             } else {
                 if ((ics->ltp.present = get_bits(gb, 1)))
                     decode_ltp(ac, &ics->ltp, gb, ics->max_sfb);
@@ -784,8 +779,7 @@ static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics,
         av_log(ac->avctx, AV_LOG_ERROR,
                "Number of scalefactor bands in group (%d) exceeds limit (%d).\n",
                ics->max_sfb, ics->num_swb);
-        memset(ics, 0, sizeof(IndividualChannelStream));
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
     return 0;
@@ -1390,8 +1384,8 @@ static int decode_ics(AACContext *ac, SingleChannelElement *sce,
     global_gain = get_bits(gb, 8);
 
     if (!common_window && !scale_flag) {
-        if (decode_ics_info(ac, ics, gb, 0) < 0)
-            return -1;
+        if (decode_ics_info(ac, ics, gb) < 0)
+            return AVERROR_INVALIDDATA;
     }
 
     if (decode_band_types(ac, sce->band_type, sce->band_type_run_end, gb, ics) < 0)
@@ -1507,8 +1501,8 @@ static int decode_cpe(AACContext *ac, GetBitContext *gb, ChannelElement *cpe)
 
     common_window = get_bits1(gb);
     if (common_window) {
-        if (decode_ics_info(ac, &cpe->ch[0].ics, gb, 1))
-            return -1;
+        if (decode_ics_info(ac, &cpe->ch[0].ics, gb))
+            return AVERROR_INVALIDDATA;
         i = cpe->ch[1].ics.use_kb_window[0];
         cpe->ch[1].ics = cpe->ch[0].ics;
         cpe->ch[1].ics.use_kb_window[1] = i;
@@ -2282,12 +2276,31 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
 static int aac_decode_frame(AVCodecContext *avctx, void *data,
                             int *got_frame_ptr, AVPacket *avpkt)
 {
+    AACContext *ac = avctx->priv_data;
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     GetBitContext gb;
     int buf_consumed;
     int buf_offset;
     int err;
+    int new_extradata_size;
+    const uint8_t *new_extradata = av_packet_get_side_data(avpkt,
+                                       AV_PKT_DATA_NEW_EXTRADATA,
+                                       &new_extradata_size);
+
+    if (new_extradata) {
+        av_free(avctx->extradata);
+        avctx->extradata = av_mallocz(new_extradata_size +
+                                      FF_INPUT_BUFFER_PADDING_SIZE);
+        if (!avctx->extradata)
+            return AVERROR(ENOMEM);
+        avctx->extradata_size = new_extradata_size;
+        memcpy(avctx->extradata, new_extradata, new_extradata_size);
+        if (decode_audio_specific_config(ac, ac->avctx, &ac->m4ac,
+                                         avctx->extradata,
+                                         avctx->extradata_size*8, 1) < 0)
+            return AVERROR_INVALIDDATA;
+    }
 
     init_get_bits(&gb, buf, buf_size * 8);
 
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 0b9405ff4d..90719dc9ee 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -792,6 +792,10 @@ typedef struct RcOverride{
  */
 #define CODEC_CAP_SLICE_THREADS    0x2000
 /**
+ * Codec supports changed parameters at any point.
+ */
+#define CODEC_CAP_PARAM_CHANGE     0x4000
+/**
  * Codec is lossless.
  */
 #define CODEC_CAP_LOSSLESS         0x80000000
@@ -877,6 +881,8 @@ typedef struct AVPanScan{
 
 enum AVPacketSideDataType {
     AV_PKT_DATA_PALETTE,
+    AV_PKT_DATA_NEW_EXTRADATA,
+    AV_PKT_DATA_PARAM_CHANGE,
 };
 
 typedef struct AVPacket {
@@ -946,6 +952,27 @@ typedef struct AVPacket {
 #define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
 
 /**
+ * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
+ * u32le param_flags
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
+ *     s32le channel_count
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
+ *     u64le channel_layout
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
+ *     s32le sample_rate
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
+ *     s32le width
+ *     s32le height
+ */
+
+enum AVSideDataParamChangeFlags {
+    AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT  = 0x0001,
+    AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
+    AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE    = 0x0004,
+    AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS     = 0x0008,
+};
+
+/**
  * Audio Video Frame.
  * New fields can be added to the end of AVFRAME with minor version
  * bumps. Similarly fields that are marked as to be only accessed by
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 652a4e9ff9..9978188620 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -4195,13 +4195,13 @@ int main(void){
 
         s= show_bits(&gb, 24);
 
-        START_TIMER
+        {START_TIMER
         j= get_ue_golomb(&gb);
         if(j != i){
             printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
 //            return -1;
         }
-        STOP_TIMER("get_ue_golomb");
+        STOP_TIMER("get_ue_golomb");}
     }
 
 
@@ -4220,13 +4220,13 @@ int main(void){
 
         s= show_bits(&gb, 24);
 
-        START_TIMER
+        {START_TIMER
         j= get_se_golomb(&gb);
         if(j != i - COUNT/2){
             printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
 //            return -1;
         }
-        STOP_TIMER("get_se_golomb");
+        STOP_TIMER("get_se_golomb");}
     }
 
     printf("Testing RBSP\n");
diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index 0b33e30808..5482294afd 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -1657,7 +1657,7 @@ decode_cabac_residual_internal(H264Context *h, DCTELEM *block,
             index[coeff_count++] = last;\
         }
         const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD];
-#if ARCH_X86 && HAVE_7REGS && HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS)
+#if ARCH_X86 && HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS)
         coeff_count= decode_significance_8x8_x86(CC, significant_coeff_ctx_base, index,
                                                  last_coeff_ctx_base, sig_off);
     } else {
diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c
index c27208823d..3401226d0f 100644
--- a/libavcodec/lpc.c
+++ b/libavcodec/lpc.c
@@ -35,8 +35,9 @@ static void lpc_apply_welch_window_c(const int32_t *data, int len,
     double w;
     double c;
 
-    assert(!(len&1)); //the optimization in r11881 does not support odd len
-                      //if someone wants odd len extend the change in r11881
+    /* The optimization in commit fa4ed8c does not support odd len.
+     * If someone wants odd len extend that change. */
+    assert(!(len & 1));
 
     n2 = (len >> 1);
     c = 2.0 / (len - 1.0);
diff --git a/libavcodec/nellymoserdec.c b/libavcodec/nellymoserdec.c
index 3386b8241e..c2e7cda461 100644
--- a/libavcodec/nellymoserdec.c
+++ b/libavcodec/nellymoserdec.c
@@ -226,7 +226,7 @@ AVCodec ff_nellymoser_decoder = {
     .init           = decode_init,
     .close          = decode_end,
     .decode         = decode_tag,
-    .capabilities   = CODEC_CAP_DR1,
+    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_PARAM_CHANGE,
     .long_name = NULL_IF_CONFIG_SMALL("Nellymoser Asao"),
     .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
                                                       AV_SAMPLE_FMT_S16,
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 03e367f4c2..7d30f7631f 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -41,6 +41,7 @@
 #include "thread.h"
 #include "audioconvert.h"
 #include "internal.h"
+#include "bytestream.h"
 #include <stdlib.h>
 #include <stdarg.h>
 #include <limits.h>
@@ -1028,6 +1029,47 @@ int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *sa
 }
 #endif
 
+static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
+{
+    int size = 0;
+    const uint8_t *data;
+    uint32_t flags;
+
+    if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
+        return;
+
+    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
+    if (!data || size < 4)
+        return;
+    flags = bytestream_get_le32(&data);
+    size -= 4;
+    if (size < 4) /* Required for any of the changes */
+        return;
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
+        avctx->channels = bytestream_get_le32(&data);
+        size -= 4;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
+        if (size < 8)
+            return;
+        avctx->channel_layout = bytestream_get_le64(&data);
+        size -= 8;
+    }
+    if (size < 4)
+        return;
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
+        avctx->sample_rate = bytestream_get_le32(&data);
+        size -= 4;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
+        if (size < 8)
+            return;
+        avctx->width  = bytestream_get_le32(&data);
+        avctx->height = bytestream_get_le32(&data);
+        size -= 8;
+    }
+}
+
 int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
                                               AVFrame *frame,
                                               int *got_frame_ptr,
@@ -1044,6 +1086,8 @@ int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
 
     if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
         av_packet_split_side_data(avpkt);
+        apply_param_change(avctx, avpkt);
+
         avctx->pkt = avpkt;
         ret = avctx->codec->decode(avctx, frame, got_frame_ptr, avpkt);
         if (ret >= 0 && *got_frame_ptr) {
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 360068a95f..5d4807cdbe 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -21,8 +21,8 @@
 #define AVCODEC_VERSION_H
 
 #define LIBAVCODEC_VERSION_MAJOR 53
-#define LIBAVCODEC_VERSION_MINOR 46
-#define LIBAVCODEC_VERSION_MICRO  1
+#define LIBAVCODEC_VERSION_MINOR 47
+#define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
diff --git a/libavcodec/w32pthreads.h b/libavcodec/w32pthreads.h
index 2d1470c5ee..3cdbc2c343 100644
--- a/libavcodec/w32pthreads.h
+++ b/libavcodec/w32pthreads.h
@@ -139,7 +139,7 @@ static void pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
     win32_cond->semaphore = CreateSemaphore(NULL, 0, 0x7fffffff, NULL);
     if (!win32_cond->semaphore)
         return;
-    win32_cond->waiters_done = CreateEvent(NULL, FALSE, FALSE, NULL);
+    win32_cond->waiters_done = CreateEvent(NULL, TRUE, FALSE, NULL);
     if (!win32_cond->waiters_done)
         return;
 
@@ -204,11 +204,10 @@ static void pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
 
     /* non native condition variables */
     pthread_mutex_lock(&win32_cond->mtx_broadcast);
-    pthread_mutex_unlock(&win32_cond->mtx_broadcast);
-
     pthread_mutex_lock(&win32_cond->mtx_waiter_count);
     win32_cond->waiter_count++;
     pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
+    pthread_mutex_unlock(&win32_cond->mtx_broadcast);
 
     // unlock the external mutex
     pthread_mutex_unlock(mutex);
@@ -216,7 +215,7 @@ static void pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
 
     pthread_mutex_lock(&win32_cond->mtx_waiter_count);
     win32_cond->waiter_count--;
-    last_waiter = !win32_cond->waiter_count && win32_cond->is_broadcast;
+    last_waiter = !win32_cond->waiter_count || !win32_cond->is_broadcast;
     pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
 
     if (last_waiter)
@@ -235,13 +234,20 @@ static void pthread_cond_signal(pthread_cond_t *cond)
         return;
     }
 
+    pthread_mutex_lock(&win32_cond->mtx_broadcast);
+
     /* non-native condition variables */
     pthread_mutex_lock(&win32_cond->mtx_waiter_count);
     have_waiter = win32_cond->waiter_count;
     pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
 
-    if (have_waiter)
+    if (have_waiter) {
         ReleaseSemaphore(win32_cond->semaphore, 1, NULL);
+        WaitForSingleObject(win32_cond->waiters_done, INFINITE);
+        ResetEvent(win32_cond->waiters_done);
+    }
+
+    pthread_mutex_unlock(&win32_cond->mtx_broadcast);
 }
 
 static void w32thread_init(void)
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c
index 2b32bccba1..0af01de390 100644
--- a/libavcodec/wmalosslessdec.c
+++ b/libavcodec/wmalosslessdec.c
@@ -1338,6 +1338,7 @@ static int decode_packet(AVCodecContext *avctx,
     *data_size = 0;
 
     if (s->packet_done || s->packet_loss) {
+        int seekable_frame_in_packet, spliced_packet;
         s->packet_done = 0;
 
         /** sanity check for the buffer length */
@@ -1351,8 +1352,8 @@ static int decode_packet(AVCodecContext *avctx,
         /** parse packet header */
         init_get_bits(gb, buf, s->buf_bit_size);
         packet_sequence_number = get_bits(gb, 4);
-        int seekable_frame_in_packet = get_bits1(gb);
-        int spliced_packet = get_bits1(gb);
+        seekable_frame_in_packet = get_bits1(gb);
+        spliced_packet = get_bits1(gb);
 
         /** get number of bits that need to be added to the previous frame */
         num_bits_prev_frame = get_bits(gb, s->log2_frame_size);
diff --git a/libavcodec/x86/h264_i386.h b/libavcodec/x86/h264_i386.h
index 089762b1dd..0bc6a611f1 100644
--- a/libavcodec/x86/h264_i386.h
+++ b/libavcodec/x86/h264_i386.h
@@ -36,7 +36,7 @@
 
 //FIXME use some macros to avoid duplicating get_cabac (cannot be done yet
 //as that would make optimization work hard)
-#if HAVE_6REGS && !defined(BROKEN_RELOCATIONS)
+#if HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS)
 static int decode_significance_x86(CABACContext *c, int max_coeff,
                                    uint8_t *significant_coeff_ctx_base,
                                    int *index, x86_reg last_off){
@@ -144,6 +144,6 @@ static int decode_significance_8x8_x86(CABACContext *c,
     );
     return coeff_count;
 }
-#endif /* HAVE_6REGS && !defined(BROKEN_RELOCATIONS) */
+#endif /* HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS) */
 
 #endif /* AVCODEC_X86_H264_I386_H */
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 0bb210bcd6..5af112d334 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -987,7 +987,7 @@ static int ff_asf_parse_packet(AVFormatContext *s, AVIOContext *pb, AVPacket *pk
             asf_st->packet_pos= asf->packet_pos;
             if (asf_st->pkt.data && asf_st->palette_changed) {
                 uint8_t *pal;
-                pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
+                pal = av_packet_new_side_data(&asf_st->pkt, AV_PKT_DATA_PALETTE,
                                               AVPALETTE_SIZE);
                 if (!pal) {
                     av_log(s, AV_LOG_ERROR, "Cannot append palette to packet\n");
diff --git a/libavformat/flacdec.c b/libavformat/flacdec.c
index 163d2fac61..070f9af3f6 100644
--- a/libavformat/flacdec.c
+++ b/libavformat/flacdec.c
@@ -102,7 +102,7 @@ static int flac_read_header(AVFormatContext *s,
             uint8_t isrc[13];
             uint64_t start;
             const uint8_t *offset;
-            int i, j, chapters, track, ti;
+            int i, chapters, track, ti;
             if (metadata_size < 431)
                 return AVERROR_INVALIDDATA;
             offset = buffer + 395;
@@ -119,8 +119,7 @@ static int flac_read_header(AVFormatContext *s,
                 offset += 14;
                 ti = bytestream_get_byte(&offset);
                 if (ti <= 0) return AVERROR_INVALIDDATA;
-                for (j = 0; j < ti; j++)
-                    offset += 12;
+                offset += ti * 12;
                 avpriv_new_chapter(s, track, st->time_base, start, AV_NOPTS_VALUE, isrc);
             }
         } else {
diff --git a/libavformat/flv.h b/libavformat/flv.h
index 2165357b6b..ef8eaabb44 100644
--- a/libavformat/flv.h
+++ b/libavformat/flv.h
@@ -66,6 +66,7 @@ enum {
     FLV_STREAM_TYPE_VIDEO,
     FLV_STREAM_TYPE_AUDIO,
     FLV_STREAM_TYPE_DATA,
+    FLV_STREAM_TYPE_NB,
 };
 
 enum {
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index 34945299b6..765eee5893 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -37,6 +37,10 @@
 
 typedef struct {
     int wrong_dts; ///< wrong dts due to negative cts
+    uint8_t *new_extradata[FLV_STREAM_TYPE_NB];
+    int      new_extradata_size[FLV_STREAM_TYPE_NB];
+    int      last_sample_rate;
+    int      last_channels;
 } FLVContext;
 
 static int flv_probe(AVProbeData *p)
@@ -50,8 +54,7 @@ static int flv_probe(AVProbeData *p)
     return 0;
 }
 
-static void flv_set_audio_codec(AVFormatContext *s, AVStream *astream, int flv_codecid) {
-    AVCodecContext *acodec = astream->codec;
+static void flv_set_audio_codec(AVFormatContext *s, AVStream *astream, AVCodecContext *acodec, int flv_codecid) {
     switch(flv_codecid) {
         //no distinction between S16 and S8 PCM codec flags
         case FLV_CODECID_PCM:
@@ -411,6 +414,15 @@ static int flv_read_header(AVFormatContext *s,
     return 0;
 }
 
+static int flv_read_close(AVFormatContext *s)
+{
+    int i;
+    FLVContext *flv = s->priv_data;
+    for(i=0; i<FLV_STREAM_TYPE_NB; i++)
+        av_freep(&flv->new_extradata[i]);
+    return 0;
+}
+
 static int flv_get_extradata(AVFormatContext *s, AVStream *st, int size)
 {
     av_free(st->codec->extradata);
@@ -422,6 +434,18 @@ static int flv_get_extradata(AVFormatContext *s, AVStream *st, int size)
     return 0;
 }
 
+static int flv_queue_extradata(FLVContext *flv, AVIOContext *pb, int stream,
+                               int size)
+{
+    av_free(flv->new_extradata[stream]);
+    flv->new_extradata[stream] = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+    if (!flv->new_extradata[stream])
+        return AVERROR(ENOMEM);
+    flv->new_extradata_size[stream] = size;
+    avio_read(pb, flv->new_extradata[stream], size);
+    return 0;
+}
+
 static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     FLVContext *flv = s->priv_data;
@@ -429,6 +453,7 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
     int stream_type=-1;
     int64_t next, pos;
     int64_t dts, pts = AV_NOPTS_VALUE;
+    int sample_rate, channels;
     AVStream *st = NULL;
 
  for(;;avio_skip(s->pb, 4)){ /* pkt size is repeated at end. skip it */
@@ -518,13 +543,24 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
     }
 
     if(stream_type == FLV_STREAM_TYPE_AUDIO){
+        int bits_per_coded_sample;
+        channels    = (flags & FLV_AUDIO_CHANNEL_MASK) == FLV_STEREO ? 2 : 1;
+        sample_rate = (44100 << ((flags & FLV_AUDIO_SAMPLERATE_MASK) >> FLV_AUDIO_SAMPLERATE_OFFSET) >> 3);
+        bits_per_coded_sample = (flags & FLV_AUDIO_SAMPLESIZE_MASK) ? 16 : 8;
         if(!st->codec->channels || !st->codec->sample_rate || !st->codec->bits_per_coded_sample) {
-            st->codec->channels = (flags & FLV_AUDIO_CHANNEL_MASK) == FLV_STEREO ? 2 : 1;
-            st->codec->sample_rate = (44100 << ((flags & FLV_AUDIO_SAMPLERATE_MASK) >> FLV_AUDIO_SAMPLERATE_OFFSET) >> 3);
-            st->codec->bits_per_coded_sample = (flags & FLV_AUDIO_SAMPLESIZE_MASK) ? 16 : 8;
+            st->codec->channels              = channels;
+            st->codec->sample_rate           = sample_rate;
+            st->codec->bits_per_coded_sample = bits_per_coded_sample;
         }
         if(!st->codec->codec_id){
-            flv_set_audio_codec(s, st, flags & FLV_AUDIO_CODECID_MASK);
+            flv_set_audio_codec(s, st, st->codec, flags & FLV_AUDIO_CODECID_MASK);
+            flv->last_sample_rate = st->codec->sample_rate;
+            flv->last_channels    = st->codec->channels;
+        } else {
+            AVCodecContext ctx;
+            ctx.sample_rate = sample_rate;
+            flv_set_audio_codec(s, st, &ctx, flags & FLV_AUDIO_CODECID_MASK);
+            sample_rate = ctx.sample_rate;
         }
     } else if(stream_type == FLV_STREAM_TYPE_VIDEO) {
         size -= flv_set_video_codec(s, st, flags & FLV_VIDEO_CODECID_MASK);
@@ -545,8 +581,13 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
             if (flv->wrong_dts)
                 dts = AV_NOPTS_VALUE;
         }
-
-        if (type == 0 && !st->codec->extradata) {
+        if (type == 0 && (!st->codec->extradata || st->codec->codec_id != CODEC_ID_H264)) {
+            if (st->codec->extradata) {
+                if ((ret = flv_queue_extradata(flv, s->pb, stream_type, size)) < 0)
+                    return ret;
+                ret = AVERROR(EAGAIN);
+                goto leave;
+            }
             if ((ret = flv_get_extradata(s, st, size)) < 0)
                 return ret;
             if (st->codec->codec_id == CODEC_ID_AAC) {
@@ -583,8 +624,22 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
     pkt->dts = dts;
     pkt->pts = pts == AV_NOPTS_VALUE ? dts : pts;
     pkt->stream_index = st->index;
-    if(st->codec->codec_id == CODEC_ID_NELLYMOSER)
-        av_packet_new_side_data(pkt, 'F', 1)[0]= flags;
+    if (flv->new_extradata[stream_type]) {
+        uint8_t *side = av_packet_new_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
+                                                flv->new_extradata_size[stream_type]);
+        if (side) {
+            memcpy(side, flv->new_extradata[stream_type],
+                   flv->new_extradata_size[stream_type]);
+            av_freep(&flv->new_extradata[stream_type]);
+            flv->new_extradata_size[stream_type] = 0;
+        }
+    }
+    if (stream_type == FLV_STREAM_TYPE_AUDIO && (sample_rate != flv->last_sample_rate ||
+                     channels != flv->last_channels)) {
+        flv->last_sample_rate = sample_rate;
+        flv->last_channels    = channels;
+        ff_add_param_change(pkt, channels, 0, sample_rate, 0, 0);
+    }
 
     if (    stream_type == FLV_STREAM_TYPE_AUDIO ||
             ((flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_KEY) ||
@@ -640,6 +695,7 @@ AVInputFormat ff_flv_demuxer = {
 #if 0
     .read_seek2 = flv_read_seek2,
 #endif
+    .read_close = flv_read_close,
     .extensions = "flv",
     .value = CODEC_ID_FLV1,
 };
diff --git a/libavformat/idroqdec.c b/libavformat/idroqdec.c
index 9ac32eb668..fffee9d76e 100644
--- a/libavformat/idroqdec.c
+++ b/libavformat/idroqdec.c
@@ -45,6 +45,7 @@
 
 typedef struct RoqDemuxContext {
 
+    int frame_rate;
     int width;
     int height;
     int audio_channels;
@@ -71,29 +72,21 @@ static int roq_read_header(AVFormatContext *s,
 {
     RoqDemuxContext *roq = s->priv_data;
     AVIOContext *pb = s->pb;
-    int framerate;
-    AVStream *st;
     unsigned char preamble[RoQ_CHUNK_PREAMBLE_SIZE];
 
     /* get the main header */
     if (avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) !=
         RoQ_CHUNK_PREAMBLE_SIZE)
         return AVERROR(EIO);
-    framerate = AV_RL16(&preamble[6]);
+    roq->frame_rate = AV_RL16(&preamble[6]);
 
     /* init private context parameters */
     roq->width = roq->height = roq->audio_channels = roq->video_pts =
     roq->audio_frame_count = 0;
     roq->audio_stream_index = -1;
+    roq->video_stream_index = -1;
 
-    st = avformat_new_stream(s, NULL);
-    if (!st)
-        return AVERROR(ENOMEM);
-    avpriv_set_pts_info(st, 63, 1, framerate);
-    roq->video_stream_index = st->index;
-    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    st->codec->codec_id = CODEC_ID_ROQ;
-    st->codec->codec_tag = 0;  /* no fourcc */
+    s->ctx_flags |= AVFMTCTX_NOHEADER;
 
     return 0;
 }
@@ -131,8 +124,16 @@ static int roq_read_packet(AVFormatContext *s,
         switch (chunk_type) {
 
         case RoQ_INFO:
-            if (!roq->width || !roq->height) {
-                AVStream *st = s->streams[roq->video_stream_index];
+            if (roq->video_stream_index == -1) {
+                AVStream *st = avformat_new_stream(s, NULL);
+                if (!st)
+                    return AVERROR(ENOMEM);
+                avpriv_set_pts_info(st, 63, 1, roq->frame_rate);
+                roq->video_stream_index = st->index;
+                st->codec->codec_type   = AVMEDIA_TYPE_VIDEO;
+                st->codec->codec_id     = CODEC_ID_ROQ;
+                st->codec->codec_tag    = 0;  /* no fourcc */
+
                 if (avio_read(pb, preamble, RoQ_CHUNK_PREAMBLE_SIZE) != RoQ_CHUNK_PREAMBLE_SIZE)
                     return AVERROR(EIO);
                 st->codec->width  = roq->width  = AV_RL16(preamble);
diff --git a/libavformat/internal.h b/libavformat/internal.h
index c3be0df380..c8376f7dda 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -298,4 +298,12 @@ int64_t ff_gen_search(AVFormatContext *s, int stream_index,
 void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
                          unsigned int pts_num, unsigned int pts_den);
 
+/**
+ * Add side data to a packet for changing parameters to the given values.
+ * Parameters set to 0 aren't included in the change.
+ */
+int ff_add_param_change(AVPacket *pkt, int32_t channels,
+                        uint64_t channel_layout, int32_t sample_rate,
+                        int32_t width, int32_t height);
+
 #endif /* AVFORMAT_INTERNAL_H */
diff --git a/libavformat/network.c b/libavformat/network.c
index e27c64d3c0..9beaaaf350 100644
--- a/libavformat/network.c
+++ b/libavformat/network.c
@@ -124,13 +124,16 @@ int ff_network_inited_globally;
 
 int ff_network_init(void)
 {
+#if HAVE_WINSOCK2_H
+    WSADATA wsaData;
+#endif
+
     if (!ff_network_inited_globally)
         av_log(NULL, AV_LOG_WARNING, "Using network protocols without global "
                                      "network initialization. Please use "
                                      "avformat_network_init(), this will "
                                      "become mandatory later.\n");
 #if HAVE_WINSOCK2_H
-    WSADATA wsaData;
     if (WSAStartup(MAKEWORD(1,1), &wsaData))
         return 0;
 #endif
diff --git a/libavformat/utils.c b/libavformat/utils.c
index edcae2fe37..65b1fe3c97 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -26,6 +26,7 @@
 #include "internal.h"
 #include "libavcodec/internal.h"
 #include "libavcodec/raw.h"
+#include "libavcodec/bytestream.h"
 #include "libavutil/opt.h"
 #include "libavutil/dict.h"
 #include "libavutil/pixdesc.h"
@@ -4290,3 +4291,45 @@ int avformat_network_deinit(void)
 #endif
     return 0;
 }
+
+int ff_add_param_change(AVPacket *pkt, int32_t channels,
+                        uint64_t channel_layout, int32_t sample_rate,
+                        int32_t width, int32_t height)
+{
+    uint32_t flags = 0;
+    int size = 4;
+    uint8_t *data;
+    if (!pkt)
+        return AVERROR(EINVAL);
+    if (channels) {
+        size += 4;
+        flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT;
+    }
+    if (channel_layout) {
+        size += 8;
+        flags |= AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT;
+    }
+    if (sample_rate) {
+        size += 4;
+        flags |= AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE;
+    }
+    if (width || height) {
+        size += 8;
+        flags |= AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS;
+    }
+    data = av_packet_new_side_data(pkt, AV_PKT_DATA_PARAM_CHANGE, size);
+    if (!data)
+        return AVERROR(ENOMEM);
+    bytestream_put_le32(&data, flags);
+    if (channels)
+        bytestream_put_le32(&data, channels);
+    if (channel_layout)
+        bytestream_put_le64(&data, channel_layout);
+    if (sample_rate)
+        bytestream_put_le32(&data, sample_rate);
+    if (width || height) {
+        bytestream_put_le32(&data, width);
+        bytestream_put_le32(&data, height);
+    }
+    return 0;
+}
diff --git a/libavutil/aes.c b/libavutil/aes.c
index 46b290ccc4..7950902280 100644
--- a/libavutil/aes.c
+++ b/libavutil/aes.c
@@ -33,7 +33,7 @@ typedef union {
 
 typedef struct AVAES {
     // Note: round_key[16] is accessed in the init code, but this only
-    // overwrites state, which does not matter (see also r7471).
+    // overwrites state, which does not matter (see also commit ba554c0).
     av_aes_block round_key[15];
     av_aes_block state[2];
     int rounds;
diff --git a/libpostproc/postprocess_altivec_template.c b/libpostproc/postprocess_altivec_template.c
index c53ebc0b4a..3a37562452 100644
--- a/libpostproc/postprocess_altivec_template.c
+++ b/libpostproc/postprocess_altivec_template.c
@@ -530,6 +530,39 @@ static inline void doVertDefFilter_altivec(uint8_t src[], int stride, PPContext
 }
 
 static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
+    const vector signed int vsint32_8 = vec_splat_s32(8);
+    const vector unsigned int vuint32_4 = vec_splat_u32(4);
+    const vector signed char neg1 = vec_splat_s8(-1);
+
+    const vector unsigned char permA1 = (vector unsigned char)
+        {0x00, 0x01, 0x02, 0x10, 0x11, 0x12, 0x1F, 0x1F,
+         0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F};
+    const vector unsigned char permA2 = (vector unsigned char)
+        {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x10, 0x11,
+         0x12, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F};
+    const vector unsigned char permA1inc = (vector unsigned char)
+        {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+    const vector unsigned char permA2inc = (vector unsigned char)
+        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
+         0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+    const vector unsigned char magic = (vector unsigned char)
+        {0x01, 0x02, 0x01, 0x02, 0x04, 0x02, 0x01, 0x02,
+         0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+    const vector unsigned char extractPerm = (vector unsigned char)
+        {0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01,
+         0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01};
+    const vector unsigned char extractPermInc = (vector unsigned char)
+        {0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
+         0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01};
+    const vector unsigned char identity = vec_lvsl(0,(unsigned char *)0);
+    const vector unsigned char tenRight = (vector unsigned char)
+        {0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+    const vector unsigned char eightLeft = (vector unsigned char)
+        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08};
+
     /*
     this code makes no assumption on src or stride.
     One could remove the recomputation of the perm
@@ -539,11 +572,9 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     src & stride :-(
     */
     uint8_t *srcCopy = src;
-    DECLARE_ALIGNED(16, uint8_t, dt)[16];
+    DECLARE_ALIGNED(16, uint8_t, dt)[16] = { deringThreshold };
     const vector signed int zero = vec_splat_s32(0);
-    vector unsigned char v_dt;
-    dt[0] = deringThreshold;
-    v_dt = vec_splat(vec_ld(0, dt), 0);
+    vector unsigned char v_dt = vec_splat(vec_ld(0, dt), 0);
 
 #define LOAD_LINE(i)                                                  \
     const vector unsigned char perm##i =                              \
@@ -565,6 +596,11 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
 #undef LOAD_LINE
 
     vector unsigned char v_avg;
+    DECLARE_ALIGNED(16, signed int, S)[8];
+    DECLARE_ALIGNED(16, int, tQP2)[4] = { c->QP/2 + 1 };
+    vector signed int vQP2 = vec_ld(0, tQP2);
+    vQP2 = vec_splat(vQP2, 0);
+
     {
     const vector unsigned char trunc_perm = (vector unsigned char)
         {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
@@ -575,21 +611,22 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     const vector unsigned char trunc_src78 = vec_perm(src7, src8, trunc_perm);
 
 #define EXTRACT(op) do {                                                \
-    const vector unsigned char s##op##_1   = vec_##op(trunc_src12, trunc_src34); \
-    const vector unsigned char s##op##_2   = vec_##op(trunc_src56, trunc_src78); \
-    const vector unsigned char s##op##_6   = vec_##op(s##op##_1, s##op##_2);     \
-    const vector unsigned char s##op##_8h  = vec_mergeh(s##op##_6, s##op##_6);   \
-    const vector unsigned char s##op##_8l  = vec_mergel(s##op##_6, s##op##_6);   \
-    const vector unsigned char s##op##_9   = vec_##op(s##op##_8h, s##op##_8l);   \
-    const vector unsigned char s##op##_9h  = vec_mergeh(s##op##_9, s##op##_9);   \
-    const vector unsigned char s##op##_9l  = vec_mergel(s##op##_9, s##op##_9);   \
-    const vector unsigned char s##op##_10  = vec_##op(s##op##_9h, s##op##_9l);   \
-    const vector unsigned char s##op##_10h = vec_mergeh(s##op##_10, s##op##_10); \
-    const vector unsigned char s##op##_10l = vec_mergel(s##op##_10, s##op##_10); \
-    const vector unsigned char s##op##_11  = vec_##op(s##op##_10h, s##op##_10l); \
-    const vector unsigned char s##op##_11h = vec_mergeh(s##op##_11, s##op##_11); \
-    const vector unsigned char s##op##_11l = vec_mergel(s##op##_11, s##op##_11); \
-    v_##op = vec_##op(s##op##_11h, s##op##_11l); } while (0)
+    const vector unsigned char s_1   = vec_##op(trunc_src12, trunc_src34); \
+    const vector unsigned char s_2   = vec_##op(trunc_src56, trunc_src78); \
+    const vector unsigned char s_6   = vec_##op(s_1, s_2);     \
+    const vector unsigned char s_8h  = vec_mergeh(s_6, s_6);   \
+    const vector unsigned char s_8l  = vec_mergel(s_6, s_6);   \
+    const vector unsigned char s_9   = vec_##op(s_8h, s_8l);   \
+    const vector unsigned char s_9h  = vec_mergeh(s_9, s_9);   \
+    const vector unsigned char s_9l  = vec_mergel(s_9, s_9);   \
+    const vector unsigned char s_10  = vec_##op(s_9h, s_9l);   \
+    const vector unsigned char s_10h = vec_mergeh(s_10, s_10); \
+    const vector unsigned char s_10l = vec_mergel(s_10, s_10); \
+    const vector unsigned char s_11  = vec_##op(s_10h, s_10l); \
+    const vector unsigned char s_11h = vec_mergeh(s_11, s_11); \
+    const vector unsigned char s_11l = vec_mergel(s_11, s_11); \
+    v_##op = vec_##op(s_11h, s_11l);                           \
+} while (0)
 
     vector unsigned char v_min;
     vector unsigned char v_max;
@@ -603,7 +640,6 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     v_avg = vec_avg(v_min, v_max);
     }
 
-    DECLARE_ALIGNED(16, signed int, S)[8];
     {
     const vector unsigned short mask1 = (vector unsigned short)
                                         {0x0001, 0x0002, 0x0004, 0x0008,
@@ -615,22 +651,27 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     const vector unsigned int vuint32_16 = vec_sl(vec_splat_u32(1), vec_splat_u32(4));
     const vector unsigned int vuint32_1 = vec_splat_u32(1);
 
+    vector signed int sumA2;
+    vector signed int sumB2;
+    vector signed int sum0, sum1, sum2, sum3, sum4;
+    vector signed int sum5, sum6, sum7, sum8, sum9;
+
 #define COMPARE(i)                                                      \
-    vector signed int sum##i;                                           \
     do {                                                                \
-        const vector unsigned char cmp##i =                             \
+        const vector unsigned char cmp =                                \
             (vector unsigned char)vec_cmpgt(src##i, v_avg);             \
-        const vector unsigned short cmpHi##i =                          \
-            (vector unsigned short)vec_mergeh(cmp##i, cmp##i);          \
-        const vector unsigned short cmpLi##i =                          \
-            (vector unsigned short)vec_mergel(cmp##i, cmp##i);          \
-        const vector signed short cmpHf##i =                            \
-            (vector signed short)vec_and(cmpHi##i, mask1);              \
-        const vector signed short cmpLf##i =                            \
-            (vector signed short)vec_and(cmpLi##i, mask2);              \
-        const vector signed int sump##i = vec_sum4s(cmpHf##i, zero);    \
-        const vector signed int sumq##i = vec_sum4s(cmpLf##i, sump##i); \
-        sum##i  = vec_sums(sumq##i, zero); } while (0)
+        const vector unsigned short cmpHi =                             \
+            (vector unsigned short)vec_mergeh(cmp, cmp);                \
+        const vector unsigned short cmpLi =                             \
+            (vector unsigned short)vec_mergel(cmp, cmp);                \
+        const vector signed short cmpHf =                               \
+            (vector signed short)vec_and(cmpHi, mask1);                 \
+        const vector signed short cmpLf =                               \
+            (vector signed short)vec_and(cmpLi, mask2);                 \
+        const vector signed int sump = vec_sum4s(cmpHf, zero);          \
+        const vector signed int sumq = vec_sum4s(cmpLf, sump);          \
+        sum##i  = vec_sums(sumq, zero);                                 \
+    } while (0)
 
     COMPARE(0);
     COMPARE(1);
@@ -644,8 +685,6 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     COMPARE(9);
 #undef COMPARE
 
-    vector signed int sumA2;
-    vector signed int sumB2;
     {
     const vector signed int sump02 = vec_mergel(sum0, sum2);
     const vector signed int sump13 = vec_mergel(sum1, sum3);
@@ -699,86 +738,43 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     /* I'm not sure the following is actually faster
        than straight, unvectorized C code :-( */
 
-    DECLARE_ALIGNED(16, int, tQP2)[4];
-    tQP2[0]= c->QP/2 + 1;
-    vector signed int vQP2 = vec_ld(0, tQP2);
-    vQP2 = vec_splat(vQP2, 0);
-    const vector signed int vsint32_8 = vec_splat_s32(8);
-    const vector unsigned int vuint32_4 = vec_splat_u32(4);
-
-    const vector unsigned char permA1 = (vector unsigned char)
-        {0x00, 0x01, 0x02, 0x10, 0x11, 0x12, 0x1F, 0x1F,
-         0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F};
-    const vector unsigned char permA2 = (vector unsigned char)
-        {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x10, 0x11,
-         0x12, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F};
-    const vector unsigned char permA1inc = (vector unsigned char)
-        {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
-         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-    const vector unsigned char permA2inc = (vector unsigned char)
-        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
-         0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-    const vector unsigned char magic = (vector unsigned char)
-        {0x01, 0x02, 0x01, 0x02, 0x04, 0x02, 0x01, 0x02,
-         0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-    const vector unsigned char extractPerm = (vector unsigned char)
-        {0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01,
-         0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01};
-    const vector unsigned char extractPermInc = (vector unsigned char)
-        {0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
-         0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01};
-    const vector unsigned char identity = vec_lvsl(0,(unsigned char *)0);
-    const vector unsigned char tenRight = (vector unsigned char)
-        {0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-    const vector unsigned char eightLeft = (vector unsigned char)
-        {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08};
-
-
-#define F_INIT(i)                                       \
-    vector unsigned char tenRightM##i = tenRight;       \
-    vector unsigned char permA1M##i = permA1;           \
-    vector unsigned char permA2M##i = permA2;           \
-    vector unsigned char extractPermM##i = extractPerm
+#define F_INIT()                                       \
+    vector unsigned char tenRightM = tenRight;         \
+    vector unsigned char permA1M = permA1;             \
+    vector unsigned char permA2M = permA2;             \
+    vector unsigned char extractPermM = extractPerm
 
 #define F2(i, j, k, l)                                                  \
     if (S[i] & (1 << (l+1))) {                                          \
-        const vector unsigned char a_##j##_A##l =                       \
-            vec_perm(src##i, src##j, permA1M##i);                       \
-        const vector unsigned char a_##j##_B##l =                       \
-            vec_perm(a_##j##_A##l, src##k, permA2M##i);                 \
-        const vector signed int a_##j##_sump##l =                       \
-            (vector signed int)vec_msum(a_##j##_B##l, magic,            \
-                                        (vector unsigned int)zero);     \
-        vector signed int F_##j##_##l =                                 \
-            vec_sr(vec_sums(a_##j##_sump##l, vsint32_8), vuint32_4);    \
-        F_##j##_##l = vec_splat(F_##j##_##l, 3);                        \
-        const vector signed int p_##j##_##l =                           \
-            (vector signed int)vec_perm(src##j,                         \
-                                        (vector unsigned char)zero,     \
-                                        extractPermM##i);               \
-        const vector signed int sum_##j##_##l  = vec_add( p_##j##_##l, vQP2);\
-        const vector signed int diff_##j##_##l = vec_sub( p_##j##_##l, vQP2);\
-        vector signed int newpm_##j##_##l;                              \
-        if (vec_all_lt(sum_##j##_##l, F_##j##_##l))                     \
-            newpm_##j##_##l = sum_##j##_##l;                            \
-        else if (vec_all_gt(diff_##j##_##l, F_##j##_##l))               \
-            newpm_##j##_##l = diff_##j##_##l;                           \
-        else newpm_##j##_##l = F_##j##_##l;                             \
-        const vector unsigned char newpm2_##j##_##l =                   \
-            vec_splat((vector unsigned char)newpm_##j##_##l, 15);       \
-        const vector unsigned char mask##j##l = vec_add(identity,       \
-                                                        tenRightM##i);  \
-        src##j = vec_perm(src##j, newpm2_##j##_##l, mask##j##l);        \
+        const vector unsigned char a_A = vec_perm(src##i, src##j, permA1M); \
+        const vector unsigned char a_B = vec_perm(a_A, src##k, permA2M); \
+        const vector signed int a_sump =                                \
+            (vector signed int)vec_msum(a_B, magic, (vector unsigned int)zero);\
+        vector signed int F = vec_sr(vec_sums(a_sump, vsint32_8), vuint32_4); \
+        const vector signed int p =                                     \
+            (vector signed int)vec_perm(src##j, (vector unsigned char)zero, \
+                                        extractPermM);                  \
+        const vector signed int sum  = vec_add(p, vQP2);                \
+        const vector signed int diff = vec_sub(p, vQP2);                \
+        vector signed int newpm;                                        \
+        vector unsigned char newpm2, mask;                              \
+        F = vec_splat(F, 3);                                            \
+        if (vec_all_lt(sum, F))                                         \
+            newpm = sum;                                                \
+        else if (vec_all_gt(diff, F))                                   \
+            newpm = diff;                                               \
+        else newpm = F;                                                 \
+        newpm2 = vec_splat((vector unsigned char)newpm, 15);            \
+        mask = vec_add(identity, tenRightM);                            \
+        src##j = vec_perm(src##j, newpm2, mask);                        \
     }                                                                   \
-    permA1M##i = vec_add(permA1M##i, permA1inc);                        \
-    permA2M##i = vec_add(permA2M##i, permA2inc);                        \
-    tenRightM##i = vec_sro(tenRightM##i, eightLeft);                    \
-    extractPermM##i = vec_add(extractPermM##i, extractPermInc)
+    permA1M = vec_add(permA1M, permA1inc);                              \
+    permA2M = vec_add(permA2M, permA2inc);                              \
+    tenRightM = vec_sro(tenRightM, eightLeft);                          \
+    extractPermM = vec_add(extractPermM, extractPermInc)
 
-#define ITER(i, j, k)                           \
-    F_INIT(i);                                  \
+#define ITER(i, j, k) do {                      \
+    F_INIT();                                   \
     F2(i, j, k, 0);                             \
     F2(i, j, k, 1);                             \
     F2(i, j, k, 2);                             \
@@ -786,7 +782,8 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     F2(i, j, k, 4);                             \
     F2(i, j, k, 5);                             \
     F2(i, j, k, 6);                             \
-    F2(i, j, k, 7)
+    F2(i, j, k, 7);                             \
+} while (0)
 
     ITER(0, 1, 2);
     ITER(1, 2, 3);
@@ -797,19 +794,18 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
     ITER(6, 7, 8);
     ITER(7, 8, 9);
 
-    const vector signed char neg1 = vec_splat_s8(-1);
-
-#define STORE_LINE(i)                                   \
-    const vector unsigned char permST##i =              \
+#define STORE_LINE(i) do {                              \
+    const vector unsigned char permST =                 \
         vec_lvsr(i * stride, srcCopy);                  \
-    const vector unsigned char maskST##i =              \
+    const vector unsigned char maskST =                 \
         vec_perm((vector unsigned char)zero,            \
-                 (vector unsigned char)neg1, permST##i);\
-    src##i = vec_perm(src##i ,src##i, permST##i);       \
-    sA##i= vec_sel(sA##i, src##i, maskST##i);           \
-    sB##i= vec_sel(src##i, sB##i, maskST##i);           \
+                 (vector unsigned char)neg1, permST);   \
+    src##i = vec_perm(src##i ,src##i, permST);          \
+    sA##i= vec_sel(sA##i, src##i, maskST);              \
+    sB##i= vec_sel(src##i, sB##i, maskST);              \
     vec_st(sA##i, i * stride, srcCopy);                 \
-    vec_st(sB##i, i * stride + 16, srcCopy)
+    vec_st(sB##i, i * stride + 16, srcCopy);            \
+} while (0)
 
     STORE_LINE(1);
     STORE_LINE(2);
@@ -832,16 +828,16 @@ static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
 static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
                                             uint8_t *tempBlurred, uint32_t *tempBlurredPast, int *maxNoise)
 {
+    const vector signed char neg1 = vec_splat_s8(-1);
+    const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+                                                                     0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F};
+
     const vector signed int zero = vec_splat_s32(0);
     const vector signed short vsint16_1 = vec_splat_s16(1);
     vector signed int v_dp = zero;
     vector signed int v_sysdp = zero;
     int d, sysd, i;
 
-    tempBlurredPast[127]= maxNoise[0];
-    tempBlurredPast[128]= maxNoise[1];
-    tempBlurredPast[129]= maxNoise[2];
-
 #define LOAD_LINE(src, i)                                               \
     register int j##src##i = i * stride;                                \
     vector unsigned char perm##src##i = vec_lvsl(j##src##i, src);       \
@@ -872,11 +868,12 @@ static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
     LOAD_LINE(tempBlurred, 7);
 #undef LOAD_LINE
 
-#define ACCUMULATE_DIFFS(i)                                     \
-    vector signed short v_d##i = vec_sub(v_tempBlurredAss##i,   \
-                                         v_srcAss##i);          \
-    v_dp = vec_msums(v_d##i, v_d##i, v_dp);                     \
-    v_sysdp = vec_msums(v_d##i, vsint16_1, v_sysdp)
+#define ACCUMULATE_DIFFS(i) do {                                \
+        vector signed short v_d = vec_sub(v_tempBlurredAss##i,  \
+                                          v_srcAss##i);         \
+        v_dp = vec_msums(v_d, v_d, v_dp);                       \
+        v_sysdp = vec_msums(v_d, vsint16_1, v_sysdp);           \
+    } while (0)
 
     ACCUMULATE_DIFFS(0);
     ACCUMULATE_DIFFS(1);
@@ -888,6 +885,10 @@ static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
     ACCUMULATE_DIFFS(7);
 #undef ACCUMULATE_DIFFS
 
+    tempBlurredPast[127]= maxNoise[0];
+    tempBlurredPast[128]= maxNoise[1];
+    tempBlurredPast[129]= maxNoise[2];
+
     v_dp = vec_sums(v_dp, zero);
     v_sysdp = vec_sums(v_sysdp, zero);
 
@@ -938,13 +939,12 @@ static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
             const vector signed short vsint16_4 = vec_splat_s16(4);
             const vector unsigned short vuint16_3 = vec_splat_u16(3);
 
-#define OP(i)                                                   \
-            const vector signed short v_temp##i =               \
-                vec_mladd(v_tempBlurredAss##i,                  \
-                          vsint16_7, v_srcAss##i);              \
-            const vector signed short v_temp2##i =              \
-                vec_add(v_temp##i, vsint16_4);                  \
-            v_tempBlurredAss##i = vec_sr(v_temp2##i, vuint16_3)
+#define OP(i) do {                                                      \
+            const vector signed short v_temp =                          \
+                vec_mladd(v_tempBlurredAss##i, vsint16_7, v_srcAss##i); \
+            const vector signed short v_temp2 = vec_add(v_temp, vsint16_4); \
+            v_tempBlurredAss##i = vec_sr(v_temp2, vuint16_3);           \
+        } while (0)
 
             OP(0);
             OP(1);
@@ -959,13 +959,13 @@ static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
             const vector signed short vsint16_3 = vec_splat_s16(3);
             const vector signed short vsint16_2 = vec_splat_s16(2);
 
-#define OP(i)                                                   \
-            const vector signed short v_temp##i =               \
-                vec_mladd(v_tempBlurredAss##i,                  \
-                          vsint16_3, v_srcAss##i);              \
-            const vector signed short v_temp2##i =              \
-                vec_add(v_temp##i, vsint16_2);                  \
-            v_tempBlurredAss##i = vec_sr(v_temp2##i, (vector unsigned short)vsint16_2)
+#define OP(i) do {                                              \
+            const vector signed short v_temp =                  \
+                vec_mladd(v_tempBlurredAss##i, vsint16_3, v_srcAss##i); \
+            const vector signed short v_temp2 = vec_add(v_temp, vsint16_2); \
+            v_tempBlurredAss##i =                                       \
+                vec_sr(v_temp2, (vector unsigned short)vsint16_2);      \
+        } while (0)
 
             OP(0);
             OP(1);
@@ -979,27 +979,19 @@ static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
         }
     }
 
-    const vector signed char neg1 = vec_splat_s8(-1);
-    const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-                                                                     0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F};
-
-#define PACK_AND_STORE(src, i)                                  \
-    const vector unsigned char perms##src##i =                  \
-        vec_lvsr(i * stride, src);                              \
-    const vector unsigned char vf##src##i =                     \
-        vec_packsu(v_tempBlurredAss##i, (vector signed short)zero); \
-    const vector unsigned char vg##src##i =                     \
-        vec_perm(vf##src##i, v_##src##A##i, permHH);            \
-    const vector unsigned char mask##src##i =                   \
-        vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##src##i); \
-    const vector unsigned char vg2##src##i =                    \
-        vec_perm(vg##src##i, vg##src##i, perms##src##i);        \
-    const vector unsigned char svA##src##i =                    \
-        vec_sel(v_##src##A1##i, vg2##src##i, mask##src##i);     \
-    const vector unsigned char svB##src##i =                    \
-        vec_sel(vg2##src##i, v_##src##A2##i, mask##src##i);     \
-    vec_st(svA##src##i, i * stride, src);                       \
-    vec_st(svB##src##i, i * stride + 16, src)
+#define PACK_AND_STORE(src, i) do {                                      \
+    const vector unsigned char perms = vec_lvsr(i * stride, src);        \
+    const vector unsigned char vf =                                      \
+        vec_packsu(v_tempBlurredAss##1, (vector signed short)zero);     \
+    const vector unsigned char vg = vec_perm(vf, v_##src##A##i, permHH); \
+    const vector unsigned char mask =                                    \
+        vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms); \
+    const vector unsigned char vg2 = vec_perm(vg, vg, perms);            \
+    const vector unsigned char svA = vec_sel(v_##src##A1##i, vg2, mask); \
+    const vector unsigned char svB = vec_sel(vg2, v_##src##A2##i, mask); \
+    vec_st(svA, i * stride, src);                                        \
+    vec_st(svB, i * stride + 16, src);                                   \
+} while (0)
 
     PACK_AND_STORE(src, 0);
     PACK_AND_STORE(src, 1);
@@ -1127,6 +1119,7 @@ static inline void transpose_16x8_char_toPackedAlign_altivec(unsigned char* dst,
 
 static inline void transpose_8x16_char_fromPackedAlign_altivec(unsigned char* dst, unsigned char* src, int stride) {
     const vector unsigned char zero = vec_splat_u8(0);
+    const vector signed   char neg1 = vec_splat_s8(-1);
 
 #define LOAD_DOUBLE_LINE(i, j)                                  \
     vector unsigned char src##i = vec_ld(i * 16, src);            \
@@ -1187,26 +1180,28 @@ static inline void transpose_8x16_char_fromPackedAlign_altivec(unsigned char* ds
     temp7 = vec_mergel(tempD, tempL);
 
 
-    const vector signed char neg1 = vec_splat_s8(-1);
-#define STORE_DOUBLE_LINE(i, j)                                         \
-    vector unsigned char dstA##i = vec_ld(i * stride, dst);             \
-    vector unsigned char dstB##i = vec_ld(i * stride + 16, dst);        \
-    vector unsigned char dstA##j = vec_ld(j * stride, dst);             \
-    vector unsigned char dstB##j = vec_ld(j * stride+ 16, dst);         \
-    vector unsigned char align##i = vec_lvsr(i * stride, dst);          \
-    vector unsigned char align##j = vec_lvsr(j * stride, dst);          \
-    vector unsigned char mask##i = vec_perm(zero, (vector unsigned char)neg1, align##i); \
-    vector unsigned char mask##j = vec_perm(zero, (vector unsigned char)neg1, align##j); \
-    vector unsigned char dstR##i = vec_perm(temp##i, temp##i, align##i);\
-    vector unsigned char dstR##j = vec_perm(temp##j, temp##j, align##j);\
-    vector unsigned char dstAF##i = vec_sel(dstA##i, dstR##i, mask##i); \
-    vector unsigned char dstBF##i = vec_sel(dstR##i, dstB##i, mask##i); \
-    vector unsigned char dstAF##j = vec_sel(dstA##j, dstR##j, mask##j); \
-    vector unsigned char dstBF##j = vec_sel(dstR##j, dstB##j, mask##j); \
-    vec_st(dstAF##i, i * stride, dst);                                  \
-    vec_st(dstBF##i, i * stride + 16, dst);                             \
-    vec_st(dstAF##j, j * stride, dst);                                  \
-    vec_st(dstBF##j, j * stride + 16, dst)
+#define STORE_DOUBLE_LINE(i, j) do {                                    \
+    vector unsigned char dstAi = vec_ld(i * stride, dst);               \
+    vector unsigned char dstBi = vec_ld(i * stride + 16, dst);          \
+    vector unsigned char dstAj = vec_ld(j * stride, dst);               \
+    vector unsigned char dstBj = vec_ld(j * stride+ 16, dst);           \
+    vector unsigned char aligni = vec_lvsr(i * stride, dst);            \
+    vector unsigned char alignj = vec_lvsr(j * stride, dst);            \
+    vector unsigned char maski =                                        \
+        vec_perm(zero, (vector unsigned char)neg1, aligni);             \
+    vector unsigned char maskj =                                        \
+        vec_perm(zero, (vector unsigned char)neg1, alignj);             \
+    vector unsigned char dstRi = vec_perm(temp##i, temp##i, aligni);    \
+    vector unsigned char dstRj = vec_perm(temp##j, temp##j, alignj);    \
+    vector unsigned char dstAFi = vec_sel(dstAi, dstRi, maski);         \
+    vector unsigned char dstBFi = vec_sel(dstRi, dstBi, maski);         \
+    vector unsigned char dstAFj = vec_sel(dstAj, dstRj, maskj);         \
+    vector unsigned char dstBFj = vec_sel(dstRj, dstBj, maskj);         \
+    vec_st(dstAFi, i * stride, dst);                                    \
+    vec_st(dstBFi, i * stride + 16, dst);                               \
+    vec_st(dstAFj, j * stride, dst);                                    \
+    vec_st(dstBFj, j * stride + 16, dst);                               \
+} while (0)
 
     STORE_DOUBLE_LINE(0,1);
     STORE_DOUBLE_LINE(2,3);
diff --git a/libpostproc/postprocess_template.c b/libpostproc/postprocess_template.c
index 934855bc70..04dd36c314 100644
--- a/libpostproc/postprocess_template.c
+++ b/libpostproc/postprocess_template.c
@@ -3515,9 +3515,10 @@ static void RENAME(postProcess)(const uint8_t src[], int srcStride, uint8_t dst[
                 else if(mode & H_DEBLOCK){
 #if HAVE_ALTIVEC
                     DECLARE_ALIGNED(16, unsigned char, tempBlock)[272];
+                    int t;
                     transpose_16x8_char_toPackedAlign_altivec(tempBlock, dstBlock - (4 + 1), stride);
 
-                    const int t=vertClassify_altivec(tempBlock-48, 16, &c);
+                    t = vertClassify_altivec(tempBlock-48, 16, &c);
                     if(t==1) {
                         doVertLowPass_altivec(tempBlock-48, 16, &c);
                         transpose_8x16_char_fromPackedAlign_altivec(dstBlock - (4 + 1), tempBlock, stride);