Merge remote-tracking branch 'qatar/master'

* qatar/master:
  yuv4mpeg: return proper error codes.
  Give all anonymously typedeffed structs in headers a name
  fate: Add parseutils test
  parseutils-test: Drop random colors from parsing test
  vf_pad/scale: use double precision for aspect ratios.
  build: error on variable-length arrays
  ppc: swscale: rework yuv2planeX_altivec()
  ppc: fmtconvert: kill VLA in float_to_int16_interleave_altivec()
  x86: dsputil: kill VLA in gmc_mmx()
  libspeexenc: Updated commentary to reflect recent changes
  libspeexenc: Add an option for enabling DTX
  doc/APIchanges: fill in missing dates and hashes.
  lavr: bump major to 1 and declare it stable.
  lavr: change the type of the data buffers to uint8_t**.
  lavc: deprecate the audio resampling API.

Conflicts:
	cmdutils.h
	configure
	doc/APIchanges
	ffplay.c
	libavcodec/dwt.h
	libavcodec/libspeexenc.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavformat/asf.h
	tests/fate/libavutil.mak
	tests/ref/fate/parseutils

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

77 files changed, 269 insertions, 293 deletions

diff --git a/cmdutils.h b/cmdutils.h
index 1973c07317..2fd2fb4c39 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -139,7 +139,7 @@ typedef struct SpecifierOpt {
     } u;
 } SpecifierOpt;
 
-typedef struct {
+typedef struct OptionDef {
     const char *name;
     int flags;
 #define HAS_ARG    0x0001
diff --git a/configure b/configure
index b55599e621..3b1b3bf684 100755
--- a/configure
+++ b/configure
@@ -3911,6 +3911,7 @@ elif enabled gcc; then
     check_optflags -fno-tree-vectorize
     check_cflags -Werror=implicit-function-declaration
     check_cflags -Werror=missing-prototypes
+#    check_cflags -Werror=vla
 elif enabled llvm_gcc; then
     check_cflags -mllvm -stack-alignment=16
 elif enabled clang; then
diff --git a/doc/APIchanges b/doc/APIchanges
index b941c64d64..06b5a8e9ea 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -97,7 +97,12 @@ API changes, most recent first:
 2012-03-26 - a67d9cf - lavfi 2.66.100
   Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
 
-2012-09-23 - a42aada - lavc 54.28.0 - avcodec.h
+2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
+  Data planes parameters to avresample_convert() and
+  avresample_read() are now uint8_t** instead of void**.
+  Libavresample is now stable.
+
+2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
   Add avcodec_free_frame(). This function must now
   be used for freeing an AVFrame.
 
diff --git a/libavcodec/aac.h b/libavcodec/aac.h
index a1e91b09b6..1070e5f310 100644
--- a/libavcodec/aac.h
+++ b/libavcodec/aac.h
@@ -113,7 +113,7 @@ enum OCStatus {
     OC_LOCKED,      ///< Output configuration locked in place
 };
 
-typedef struct {
+typedef struct OutputConfiguration {
     MPEG4AudioConfig m4ac;
     uint8_t layout_map[MAX_ELEM_ID*4][3];
     int layout_map_tags;
@@ -125,7 +125,7 @@ typedef struct {
 /**
  * Predictor State
  */
-typedef struct {
+typedef struct PredictorState {
     float cor0;
     float cor1;
     float var0;
@@ -146,7 +146,7 @@ typedef struct {
 /**
  * Long Term Prediction
  */
-typedef struct {
+typedef struct LongTermPrediction {
     int8_t present;
     int16_t lag;
     float coef;
@@ -156,7 +156,7 @@ typedef struct {
 /**
  * Individual Channel Stream
  */
-typedef struct {
+typedef struct IndividualChannelStream {
     uint8_t max_sfb;            ///< number of scalefactor bands per group
     enum WindowSequence window_sequence[2];
     uint8_t use_kb_window[2];   ///< If set, use Kaiser-Bessel window, otherwise use a sinus window.
@@ -177,7 +177,7 @@ typedef struct {
 /**
  * Temporal Noise Shaping
  */
-typedef struct {
+typedef struct TemporalNoiseShaping {
     int present;
     int n_filt[8];
     int length[8][4];
@@ -189,7 +189,7 @@ typedef struct {
 /**
  * Dynamic Range Control - decoded from the bitstream but not processed further.
  */
-typedef struct {
+typedef struct DynamicRangeControl {
     int pce_instance_tag;                           ///< Indicates with which program the DRC info is associated.
     int dyn_rng_sgn[17];                            ///< DRC sign information; 0 - positive, 1 - negative
     int dyn_rng_ctl[17];                            ///< DRC magnitude information
@@ -202,7 +202,7 @@ typedef struct {
                                                      */
 } DynamicRangeControl;
 
-typedef struct {
+typedef struct Pulse {
     int num_pulse;
     int start;
     int pos[4];
@@ -212,7 +212,7 @@ typedef struct {
 /**
  * coupling parameters
  */
-typedef struct {
+typedef struct ChannelCoupling {
     enum CouplingPoint coupling_point;  ///< The point during decoding at which coupling is applied.
     int num_coupled;       ///< number of target elements
     enum RawDataBlockType type[8];   ///< Type of channel element to be coupled - SCE or CPE.
@@ -226,7 +226,7 @@ typedef struct {
 /**
  * Single Channel Element - used for both SCE and LFE elements.
  */
-typedef struct {
+typedef struct SingleChannelElement {
     IndividualChannelStream ics;
     TemporalNoiseShaping tns;
     Pulse pulse;
@@ -245,7 +245,7 @@ typedef struct {
 /**
  * channel element - generic struct for SCE/CPE/CCE/LFE
  */
-typedef struct {
+typedef struct ChannelElement {
     // CPE specific
     int common_window;        ///< Set if channels share a common 'IndividualChannelStream' in bitstream.
     int     ms_mode;          ///< Signals mid/side stereo flags coding mode (used by encoder)
@@ -260,7 +260,7 @@ typedef struct {
 /**
  * main AAC context
  */
-typedef struct {
+typedef struct AACContext {
     AVCodecContext *avctx;
     AVFrame frame;
 
diff --git a/libavcodec/aacadtsdec.h b/libavcodec/aacadtsdec.h
index fb2cbd9b35..d0584ef36a 100644
--- a/libavcodec/aacadtsdec.h
+++ b/libavcodec/aacadtsdec.h
@@ -28,7 +28,7 @@
 
 #define AAC_ADTS_HEADER_SIZE 7
 
-typedef struct {
+typedef struct AACADTSHeaderInfo {
     uint32_t sample_rate;
     uint32_t samples;
     uint32_t bit_rate;
diff --git a/libavcodec/aacps.h b/libavcodec/aacps.h
index d310c91b95..29323ffc0a 100644
--- a/libavcodec/aacps.h
+++ b/libavcodec/aacps.h
@@ -38,7 +38,7 @@
 #define PS_AP_LINKS 3
 #define PS_MAX_AP_DELAY 5
 
-typedef struct {
+typedef struct PSContext {
     int    start;
     int    enable_iid;
     int    iid_quant;
diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index b9f34b9d90..e609bb51ce 100644
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -93,7 +93,7 @@ typedef struct AC3BitAllocParameters {
  * @struct AC3HeaderInfo
  * Coded AC-3 header values up to the lfeon element, plus derived values.
  */
-typedef struct {
+typedef struct AC3HeaderInfo {
     /** @name Coded elements
      * @{
      */
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h
index e0f3dc7be4..c3a43bf5cf 100644
--- a/libavcodec/ac3dec.h
+++ b/libavcodec/ac3dec.h
@@ -65,7 +65,7 @@
 /** Large enough for maximum possible frame size when the specification limit is ignored */
 #define AC3_FRAME_BUFFER_SIZE 32768
 
-typedef struct {
+typedef struct AC3DecodeContext {
     AVClass        *class;                  ///< class for AVOptions
     AVCodecContext *avctx;                  ///< parent context
     AVFrame frame;                          ///< AVFrame for decoded output
diff --git a/libavcodec/acelp_vectors.h b/libavcodec/acelp_vectors.h
index d92f288de4..fae834dac1 100644
--- a/libavcodec/acelp_vectors.h
+++ b/libavcodec/acelp_vectors.h
@@ -50,7 +50,7 @@ void ff_acelp_vectors_init(ACELPVContext *c);
 void ff_acelp_vectors_init_mips(ACELPVContext *c);
 
 /** Sparse representation for the algebraic codebook (fixed) vector */
-typedef struct {
+typedef struct AMRFixed {
     int      n;
     int      x[10];
     float    y[10];
diff --git a/libavcodec/adx.h b/libavcodec/adx.h
index a14ddce499..85b35d15be 100644
--- a/libavcodec/adx.h
+++ b/libavcodec/adx.h
@@ -35,11 +35,11 @@
 
 #include "avcodec.h"
 
-typedef struct {
+typedef struct ADXChannelState {
     int s1,s2;
 } ADXChannelState;
 
-typedef struct {
+typedef struct ADXContext {
     AVFrame frame;
     int channels;
     ADXChannelState prev[2];
diff --git a/libavcodec/amrnbdata.h b/libavcodec/amrnbdata.h
index 6e555bfdb4..435fd9924b 100644
--- a/libavcodec/amrnbdata.h
+++ b/libavcodec/amrnbdata.h
@@ -55,7 +55,7 @@ enum Mode {
 /**
  * AMRNB unpacked data subframe
  */
-typedef struct {
+typedef struct AMRNBSubframe {
     uint16_t p_lag;      ///< index to decode the pitch lag
     uint16_t p_gain;     ///< index to decode the pitch gain
     uint16_t fixed_gain; ///< index to decode the fixed gain factor, for MODE_12k2 and MODE_7k95
@@ -65,7 +65,7 @@ typedef struct {
 /**
  * AMRNB unpacked data frame
  */
-typedef struct {
+typedef struct AMRNBFrame {
     uint16_t lsf[5];           ///< lsf parameters: 5 parameters for MODE_12k2, only 3 for other modes
     AMRNBSubframe subframe[4]; ///< unpacked data for each subframe
 } AMRNBFrame;
diff --git a/libavcodec/amrwbdata.h b/libavcodec/amrwbdata.h
index 83390fc393..8390582b05 100644
--- a/libavcodec/amrwbdata.h
+++ b/libavcodec/amrwbdata.h
@@ -66,7 +66,7 @@ enum Mode {
 
 /* All decoded parameters in these structs must be 2 bytes long
  * because of the direct indexing at the frame parsing */
-typedef struct {
+typedef struct AMRWBSubFrame {
     uint16_t adap;                         ///< adaptive codebook index
     uint16_t ltp;                          ///< ltp-filtering flag
     uint16_t vq_gain;                      ///< VQ adaptive and innovative gains
@@ -75,7 +75,7 @@ typedef struct {
     uint16_t pul_il[4];                    ///< LSBs part of codebook index
 } AMRWBSubFrame;
 
-typedef struct {
+typedef struct AMRWBFrame {
     uint16_t vad;                          ///< voice activity detection flag
     uint16_t isp_id[7];                    ///< index of ISP subvectors
     AMRWBSubFrame subframe[4];             ///< data for subframes
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 2683ee5887..719921a779 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -4323,9 +4323,11 @@ int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
  * @}
  */
 
+#if FF_API_AVCODEC_RESAMPLE
 /**
  * @defgroup lavc_resample Audio resampling
  * @ingroup libavc
+ * @deprecated use libswresample instead
  *
  * @{
  */
@@ -4350,6 +4352,7 @@ typedef struct ReSampleContext ReSampleContext;
  * @param cutoff           cutoff frequency, 1.0 corresponds to half the output sampling rate
  * @return allocated ReSampleContext, NULL if error occurred
  */
+attribute_deprecated
 ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
                                         int output_rate, int input_rate,
                                         enum AVSampleFormat sample_fmt_out,
@@ -4357,6 +4360,7 @@ ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
                                         int filter_length, int log2_phase_count,
                                         int linear, double cutoff);
 
+attribute_deprecated
 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
 
 /**
@@ -4365,6 +4369,7 @@ int audio_resample(ReSampleContext *s, short *output, short *input, int nb_sampl
  * @param s a non-NULL pointer to a resample context previously
  *          created with av_audio_resample_init()
  */
+attribute_deprecated
 void audio_resample_close(ReSampleContext *s);
 
 
@@ -4377,6 +4382,7 @@ void audio_resample_close(ReSampleContext *s);
                  between the 2 closest, if 0 the closest will be used
  * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
  */
+attribute_deprecated
 struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
 
 /**
@@ -4388,6 +4394,7 @@ struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter
  * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context.
  * @return the number of samples written in dst or -1 if an error occurred
  */
+attribute_deprecated
 int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
 
 
@@ -4403,12 +4410,15 @@ int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consum
  * note, due to rounding the actual compensation might be slightly different,
  * especially if the compensation_distance is large and the in_rate used during init is small
  */
+attribute_deprecated
 void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
+attribute_deprecated
 void av_resample_close(struct AVResampleContext *c);
 
 /**
  * @}
  */
+#endif
 
 /**
  * @addtogroup lavc_picture
diff --git a/libavcodec/bytestream.h b/libavcodec/bytestream.h
index 39a1e28a12..af7f75bd45 100644
--- a/libavcodec/bytestream.h
+++ b/libavcodec/bytestream.h
@@ -29,11 +29,11 @@
 #include "libavutil/common.h"
 #include "libavutil/intreadwrite.h"
 
-typedef struct {
+typedef struct GetByteContext {
     const uint8_t *buffer, *buffer_end, *buffer_start;
 } GetByteContext;
 
-typedef struct {
+typedef struct PutByteContext {
     uint8_t *buffer, *buffer_end, *buffer_start;
     int eof;
 } PutByteContext;
diff --git a/libavcodec/cavs.h b/libavcodec/cavs.h
index 461d7c8ba8..039053dddb 100644
--- a/libavcodec/cavs.h
+++ b/libavcodec/cavs.h
@@ -152,7 +152,7 @@ struct dec_2dvlc {
   int8_t max_run;
 };
 
-typedef struct {
+typedef struct AVSContext {
     MpegEncContext s;
     CAVSDSPContext cdsp;
     Picture picture; ///< currently decoded frame
diff --git a/libavcodec/dirac.h b/libavcodec/dirac.h
index 542d4910f8..b0f955bf46 100644
--- a/libavcodec/dirac.h
+++ b/libavcodec/dirac.h
@@ -34,7 +34,7 @@
 #include "avcodec.h"
 #include "get_bits.h"
 
-typedef struct {
+typedef struct dirac_source_params {
     unsigned width;
     unsigned height;
     uint8_t chroma_format;          ///< 0: 444  1: 422  2: 420
diff --git a/libavcodec/dnxhddata.h b/libavcodec/dnxhddata.h
index 6e774b5c88..6ebee3d0f3 100644
--- a/libavcodec/dnxhddata.h
+++ b/libavcodec/dnxhddata.h
@@ -25,7 +25,7 @@
 #include <stdint.h>
 #include "avcodec.h"
 
-typedef struct {
+typedef struct CIDEntry {
     int cid;
     unsigned int width, height;
     int interlaced;
diff --git a/libavcodec/dnxhdenc.h b/libavcodec/dnxhdenc.h
index e57047d5dc..36a42fb100 100644
--- a/libavcodec/dnxhdenc.h
+++ b/libavcodec/dnxhdenc.h
@@ -29,12 +29,12 @@
 #include "mpegvideo.h"
 #include "dnxhddata.h"
 
-typedef struct {
+typedef struct RCCMPEntry {
     uint16_t mb;
     int value;
 } RCCMPEntry;
 
-typedef struct {
+typedef struct RCEntry {
     int ssd;
     int bits;
 } RCEntry;
diff --git a/libavcodec/dwt.h b/libavcodec/dwt.h
index 6df32f39f2..d82e510006 100644
--- a/libavcodec/dwt.h
+++ b/libavcodec/dwt.h
@@ -29,7 +29,7 @@ typedef short IDWTELEM;
 #define MAX_DWT_SUPPORT 8
 #define MAX_DECOMPOSITIONS 8
 
-typedef struct {
+typedef struct DWTCompose {
     IDWTELEM *b[MAX_DWT_SUPPORT];
 
     IDWTELEM *b0;
diff --git a/libavcodec/g722.h b/libavcodec/g722.h
index eb3b9b872e..bab1da48cc 100644
--- a/libavcodec/g722.h
+++ b/libavcodec/g722.h
@@ -30,7 +30,7 @@
 
 #define PREV_SAMPLES_BUF_SIZE 1024
 
-typedef struct {
+typedef struct G722Context {
     const AVClass *class;
     AVFrame frame;
     int     bits_per_codeword;
diff --git a/libavcodec/gsmdec_data.h b/libavcodec/gsmdec_data.h
index 3eb30b84b7..6abe2b47b3 100644
--- a/libavcodec/gsmdec_data.h
+++ b/libavcodec/gsmdec_data.h
@@ -25,7 +25,7 @@
 #include <stdint.h>
 #include "avcodec.h"
 
-typedef struct {
+typedef struct GSMContext {
     AVFrame frame;
     // Contains first 120 elements from the previous frame
     // (used by long_term_synth according to the "lag"),
diff --git a/libavcodec/huffman.h b/libavcodec/huffman.h
index 2fdf88d405..4f9ccbad50 100644
--- a/libavcodec/huffman.h
+++ b/libavcodec/huffman.h
@@ -29,7 +29,7 @@
 #include "avcodec.h"
 #include "get_bits.h"
 
-typedef struct {
+typedef struct Node {
     int16_t  sym;
     int16_t  n0;
     uint32_t count;
diff --git a/libavcodec/indeo3data.h b/libavcodec/indeo3data.h
index e6f370c84d..0b5648eb20 100644
--- a/libavcodec/indeo3data.h
+++ b/libavcodec/indeo3data.h
@@ -320,7 +320,7 @@ static const int32_t delta_tab_3_4_m10[79]  = { TAB_3_4 };
 static const int32_t delta_tab_3_5_m10[79]  = { TAB_3_5 };
 
 
-typedef struct {
+typedef struct vqEntry {
     const int16_t  *deltas;     ///< delta tables for 4x4 block modes
     const int32_t  *deltas_m10; ///< delta tables for 8x8 block modes
     uint8_t        num_dyads;   ///< number of two-pixel deltas
diff --git a/libavcodec/intrax8.h b/libavcodec/intrax8.h
index dd2dc7d696..40d689a93c 100644
--- a/libavcodec/intrax8.h
+++ b/libavcodec/intrax8.h
@@ -23,7 +23,7 @@
 #include "mpegvideo.h"
 #include "intrax8dsp.h"
 
-typedef struct{
+typedef struct IntraX8Context {
     VLC * j_ac_vlc[4];//they point to the static j_mb_vlc
     VLC * j_orient_vlc;
     VLC * j_dc_vlc[3];
diff --git a/libavcodec/ivi_common.h b/libavcodec/ivi_common.h
index 4636f6ce52..44b28cd231 100644
--- a/libavcodec/ivi_common.h
+++ b/libavcodec/ivi_common.h
@@ -40,7 +40,7 @@
 /**
  *  huffman codebook descriptor
  */
-typedef struct {
+typedef struct IVIHuffDesc {
     int32_t     num_rows;
     uint8_t     xbits[16];
 } IVIHuffDesc;
@@ -48,7 +48,7 @@ typedef struct {
 /**
  *  macroblock/block huffman table descriptor
  */
-typedef struct {
+typedef struct IVIHuffTab {
     int32_t     tab_sel;    /// index of one of the predefined tables
                             /// or "7" for custom one
     VLC         *tab;       /// pointer to the table associated with tab_sel
@@ -85,7 +85,7 @@ typedef void (DCTransformPtr) (const int32_t *in, int16_t *out, uint32_t pitch,
 /**
  *  run-value (RLE) table descriptor
  */
-typedef struct {
+typedef struct RVMapDesc {
     uint8_t     eob_sym; ///< end of block symbol
     uint8_t     esc_sym; ///< escape symbol
     uint8_t     runtab[256];
@@ -98,7 +98,7 @@ extern const RVMapDesc ff_ivi_rvmap_tabs[9];
 /**
  *  information for Indeo macroblock (16x16, 8x8 or 4x4)
  */
-typedef struct {
+typedef struct IVIMbInfo {
     int16_t     xpos;
     int16_t     ypos;
     uint32_t    buf_offs; ///< address in the output buffer for this mb
@@ -113,7 +113,7 @@ typedef struct {
 /**
  *  information for Indeo tile
  */
-typedef struct {
+typedef struct IVITile {
     int         xpos;
     int         ypos;
     int         width;
@@ -130,7 +130,7 @@ typedef struct {
 /**
  *  information for Indeo wavelet band
  */
-typedef struct {
+typedef struct IVIBandDesc {
     int             plane;          ///< plane number this band belongs to
     int             band_num;       ///< band number
     int             width;
@@ -178,7 +178,7 @@ typedef struct {
 /**
  *  color plane (luma or chroma) information
  */
-typedef struct {
+typedef struct IVIPlaneDesc {
     uint16_t    width;
     uint16_t    height;
     uint8_t     num_bands;  ///< number of bands this plane subdivided into
@@ -186,7 +186,7 @@ typedef struct {
 } IVIPlaneDesc;
 
 
-typedef struct {
+typedef struct IVIPicConfig {
     uint16_t    pic_width;
     uint16_t    pic_height;
     uint16_t    chroma_width;
diff --git a/libavcodec/libschroedinger.h b/libavcodec/libschroedinger.h
index bacc0da050..df8ab985be 100644
--- a/libavcodec/libschroedinger.h
+++ b/libavcodec/libschroedinger.h
@@ -31,7 +31,7 @@
 
 #include "avcodec.h"
 
-typedef struct {
+typedef struct SchroVideoFormatInfo {
     uint16_t width;
     uint16_t height;
     uint16_t frame_rate_num;
diff --git a/libavcodec/libspeexenc.c b/libavcodec/libspeexenc.c
index e3db143f75..fb597efb6e 100644
--- a/libavcodec/libspeexenc.c
+++ b/libavcodec/libspeexenc.c
@@ -219,7 +219,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
     /* Activiting Discontinuous Transmission */
     if (s->dtx) {
         speex_encoder_ctl(s->enc_state, SPEEX_SET_DTX, &s->dtx);
-        if ( !(s->abr || s->vad || s->header.vbr))
+        if (!(s->abr || s->vad || s->header.vbr))
             av_log(avctx, AV_LOG_WARNING, "DTX is not much of use without ABR, VAD or VBR\n");
     }
 
diff --git a/libavcodec/mlp.h b/libavcodec/mlp.h
index 628b58d318..d8d1292903 100644
--- a/libavcodec/mlp.h
+++ b/libavcodec/mlp.h
@@ -71,7 +71,7 @@
 #define IIR 1
 
 /** filter data */
-typedef struct {
+typedef struct FilterParams {
     uint8_t     order; ///< number of taps in filter
     uint8_t     shift; ///< Right shift to apply to output of filter.
 
@@ -79,7 +79,7 @@ typedef struct {
 } FilterParams;
 
 /** sample data coding information */
-typedef struct {
+typedef struct ChannelParams {
     FilterParams filter_params[NUM_FILTERS];
     int32_t     coeff[NUM_FILTERS][MAX_FIR_ORDER];
 
diff --git a/libavcodec/mpc.h b/libavcodec/mpc.h
index 34ef263b40..7ee402b356 100644
--- a/libavcodec/mpc.h
+++ b/libavcodec/mpc.h
@@ -41,7 +41,7 @@
 #define MPC_FRAME_SIZE   (BANDS * SAMPLES_PER_BAND)
 
 /** Subband structure - hold all variables for each subband */
-typedef struct {
+typedef struct Band {
     int msf; ///< mid-stereo flag
     int res[2];
     int scfi[2];
@@ -49,7 +49,7 @@ typedef struct {
     int Q[2];
 }Band;
 
-typedef struct {
+typedef struct MPCContext {
     AVFrame frame;
     DSPContext dsp;
     MPADSPContext mpadsp;
diff --git a/libavcodec/mpeg4audio.h b/libavcodec/mpeg4audio.h
index 21000a9acc..64839c6617 100644
--- a/libavcodec/mpeg4audio.h
+++ b/libavcodec/mpeg4audio.h
@@ -26,7 +26,7 @@
 #include "get_bits.h"
 #include "put_bits.h"
 
-typedef struct {
+typedef struct MPEG4AudioConfig {
     int object_type;
     int sampling_index;
     int sample_rate;
diff --git a/libavcodec/ppc/fmtconvert_altivec.c b/libavcodec/ppc/fmtconvert_altivec.c
index 3cb11543dd..7eff9f04d1 100644
--- a/libavcodec/ppc/fmtconvert_altivec.c
+++ b/libavcodec/ppc/fmtconvert_altivec.c
@@ -83,6 +83,22 @@ static void float_to_int16_altivec(int16_t *dst, const float *src, long len)
     }
 }
 
+static void float_to_int16_stride_altivec(int16_t *dst, const float *src,
+                                          long len, int stride)
+{
+    int i, j;
+    vector signed short d, s;
+
+    for (i = 0; i < len - 7; i += 8) {
+        d = float_to_int16_one_altivec(src + i);
+        for (j = 0; j < 8; j++) {
+            s = vec_splat(d, j);
+            vec_ste(s, 0, dst);
+            dst += stride;
+        }
+    }
+}
+
 static void float_to_int16_interleave_altivec(int16_t *dst, const float **src,
                                               long len, int channels)
 {
@@ -124,13 +140,8 @@ static void float_to_int16_interleave_altivec(int16_t *dst, const float **src,
                 }
             }
         } else {
-            DECLARE_ALIGNED(16, int16_t, tmp)[len];
-            int c, j;
-            for (c = 0; c < channels; c++) {
-                float_to_int16_altivec(tmp, src[c], len);
-                for (i = 0, j = c; i < len; i++, j+=channels)
-                    dst[j] = tmp[i];
-            }
+            for (i = 0; i < channels; i++)
+                float_to_int16_stride_altivec(dst + i, src[i], len, channels);
         }
     }
 }
diff --git a/libavcodec/proresdsp.h b/libavcodec/proresdsp.h
index a35e0d627e..09541d9642 100644
--- a/libavcodec/proresdsp.h
+++ b/libavcodec/proresdsp.h
@@ -27,7 +27,7 @@
 
 #define PRORES_BITS_PER_SAMPLE 10 ///< output precision of prores decoder
 
-typedef struct {
+typedef struct ProresDSPContext {
     int idct_permutation_type;
     uint8_t idct_permutation[64];
     int dct_permutation_type;
diff --git a/libavcodec/qcelpdata.h b/libavcodec/qcelpdata.h
index 4a7dcdb38b..d58e9f8316 100644
--- a/libavcodec/qcelpdata.h
+++ b/libavcodec/qcelpdata.h
@@ -37,7 +37,7 @@
 /**
  * QCELP unpacked data frame
  */
-typedef struct {
+typedef struct QCELPFrame {
 /// @name QCELP excitation codebook parameters
 /// @{
     uint8_t cbsign[16]; ///< sign of the codebook gain for each codebook subframe
@@ -73,7 +73,7 @@ typedef struct {
  */
 static const float qcelp_hammsinc_table[4] = { -0.006822,  0.041249, -0.143459,  0.588863};
 
-typedef struct {
+typedef struct QCELPBitmap {
     uint8_t index;  /**< index into the QCELPContext structure */
     uint8_t bitpos; /**< position of the lowest bit in the value's byte */
     uint8_t bitlen; /**< number of bits to read */
diff --git a/libavcodec/ra144.h b/libavcodec/ra144.h
index 03c4860367..331dc35f3c 100644
--- a/libavcodec/ra144.h
+++ b/libavcodec/ra144.h
@@ -33,7 +33,7 @@
 #define FRAMESIZE       20      ///< size of encoded frame
 #define LPC_ORDER       10      ///< order of LPC filter
 
-typedef struct {
+typedef struct RA144Context {
     AVCodecContext *avctx;
     AVFrame frame;
     LPCContext lpc_ctx;
diff --git a/libavcodec/resample.c b/libavcodec/resample.c
index 04e5aab371..dfaad66216 100644
--- a/libavcodec/resample.c
+++ b/libavcodec/resample.c
@@ -32,6 +32,8 @@
 #include "libavutil/mem.h"
 #include "libavutil/samplefmt.h"
 
+#if FF_API_AVCODEC_RESAMPLE
+
 #define MAX_CHANNELS 8
 
 struct AVResampleContext;
@@ -429,3 +431,5 @@ void audio_resample_close(ReSampleContext *s)
     av_audio_convert_free(s->convert_ctx[1]);
     av_free(s);
 }
+
+#endif
diff --git a/libavcodec/resample2.c b/libavcodec/resample2.c
index 38186121ca..3a3cd13dfe 100644
--- a/libavcodec/resample2.c
+++ b/libavcodec/resample2.c
@@ -30,6 +30,8 @@
 #include "dsputil.h"
 #include "libavutil/common.h"
 
+#if FF_API_AVCODEC_RESAMPLE
+
 #ifndef CONFIG_RESAMPLE_HP
 #define FILTER_SHIFT 15
 
@@ -321,3 +323,5 @@ av_log(NULL, AV_LOG_DEBUG, "%d %d %d\n", c->dst_incr, c->ideal_dst_incr, c->comp
 
     return dst_index;
 }
+
+#endif
diff --git a/libavcodec/roqvideo.h b/libavcodec/roqvideo.h
index 6fc7161c8a..2f9493d3b6 100644
--- a/libavcodec/roqvideo.h
+++ b/libavcodec/roqvideo.h
@@ -27,16 +27,16 @@
 #include "bytestream.h"
 #include "dsputil.h"
 
-typedef struct {
+typedef struct roq_cell {
     unsigned char y[4];
     unsigned char u, v;
 } roq_cell;
 
-typedef struct {
+typedef struct roq_qcell {
     int idx[4];
 } roq_qcell;
 
-typedef struct {
+typedef struct motion_vect {
     int d[2];
 } motion_vect;
 
diff --git a/libavcodec/rtjpeg.h b/libavcodec/rtjpeg.h
index 5b359db9eb..0fd24a356c 100644
--- a/libavcodec/rtjpeg.h
+++ b/libavcodec/rtjpeg.h
@@ -29,7 +29,7 @@
 #define RTJPEG_FILE_VERSION 0
 #define RTJPEG_HEADER_SIZE 12
 
-typedef struct {
+typedef struct RTJpegContext {
     int w, h;
     DSPContext *dsp;
     uint8_t scan[64];
diff --git a/libavcodec/sbr.h b/libavcodec/sbr.h
index e68b3cf916..7c0afdc84c 100644
--- a/libavcodec/sbr.h
+++ b/libavcodec/sbr.h
@@ -37,7 +37,7 @@
 /**
  * Spectral Band Replication header - spectrum parameters that invoke a reset if they differ from the previous header.
  */
-typedef struct {
+typedef struct SpectrumParameters {
     uint8_t bs_start_freq;
     uint8_t bs_stop_freq;
     uint8_t bs_xover_band;
@@ -57,7 +57,7 @@ typedef struct {
 /**
  * Spectral Band Replication per channel data
  */
-typedef struct {
+typedef struct SBRData {
     /**
      * @name Main bitstream data variables
      * @{
@@ -111,7 +111,7 @@ typedef struct {
 /**
  * Spectral Band Replication
  */
-typedef struct {
+typedef struct SpectralBandReplication {
     int                sample_rate;
     int                start;
     int                reset;
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 39888179b5..b2f4bb010f 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -94,5 +94,8 @@
 #ifndef FF_API_VDA_ASYNC
 #define FF_API_VDA_ASYNC         (LIBAVCODEC_VERSION_MAJOR < 55)
 #endif
+#ifndef FF_API_AVCODEC_RESAMPLE
+#define FF_API_AVCODEC_RESAMPLE  (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
 
 #endif /* AVCODEC_VERSION_H */
diff --git a/libavcodec/vorbis.h b/libavcodec/vorbis.h
index 14045ec53e..0bab0b9c0f 100644
--- a/libavcodec/vorbis.h
+++ b/libavcodec/vorbis.h
@@ -29,7 +29,7 @@ extern const uint8_t ff_vorbis_channel_layout_offsets[8][8];
 extern const uint8_t ff_vorbis_encoding_channel_layout_offsets[8][8];
 extern const uint64_t ff_vorbis_channel_layouts[9];
 
-typedef struct {
+typedef struct vorbis_floor1_entry {
     uint16_t x;
     uint16_t sort;
     uint16_t low;
diff --git a/libavcodec/vp56.h b/libavcodec/vp56.h
index 44bd229a6d..65245a2246 100644
--- a/libavcodec/vp56.h
+++ b/libavcodec/vp56.h
@@ -35,7 +35,7 @@
 
 typedef struct vp56_context VP56Context;
 
-typedef struct {
+typedef struct VP56mv {
     DECLARE_ALIGNED(4, int16_t, x);
     int16_t y;
 } VP56mv;
@@ -52,7 +52,7 @@ typedef int  (*VP56ParseCoeffModels)(VP56Context *s);
 typedef int  (*VP56ParseHeader)(VP56Context *s, const uint8_t *buf,
                                 int buf_size);
 
-typedef struct {
+typedef struct VP56RangeCoder {
     int high;
     int bits; /* stored negated (i.e. negative "bits" is a positive number of
                  bits left) in order to eliminate a negate in cache refilling */
@@ -61,18 +61,18 @@ typedef struct {
     unsigned int code_word;
 } VP56RangeCoder;
 
-typedef struct {
+typedef struct VP56RefDc {
     uint8_t not_null_dc;
     VP56Frame ref_frame;
     DCTELEM dc_coeff;
 } VP56RefDc;
 
-typedef struct {
+typedef struct VP56Macroblock {
     uint8_t type;
     VP56mv mv;
 } VP56Macroblock;
 
-typedef struct {
+typedef struct VP56Model {
     uint8_t coeff_reorder[64];       /* used in vp6 only */
     uint8_t coeff_index_to_pos[64];  /* used in vp6 only */
     uint8_t vector_sig[2];           /* delta sign */
diff --git a/libavcodec/vp56data.h b/libavcodec/vp56data.h
index d48a89cbe9..f30732ed94 100644
--- a/libavcodec/vp56data.h
+++ b/libavcodec/vp56data.h
@@ -51,7 +51,7 @@ typedef enum {
     VP56_MB_INTER_V2_GF    = 9,  /**< Inter MB, second vector, from golden frame */
 } VP56mb;
 
-typedef struct {
+typedef struct VP56Tree {
   int8_t val;
   int8_t prob_idx;
 } VP56Tree;
diff --git a/libavcodec/vp8.h b/libavcodec/vp8.h
index 4f026dfe8d..eb4aad278f 100644
--- a/libavcodec/vp8.h
+++ b/libavcodec/vp8.h
@@ -72,13 +72,13 @@ enum inter_splitmvmode {
     VP8_SPLITMVMODE_NONE,        ///< (only used in prediction) no split MVs
 };
 
-typedef struct {
+typedef struct VP8FilterStrength {
     uint8_t filter_level;
     uint8_t inner_limit;
     uint8_t inner_filter;
 } VP8FilterStrength;
 
-typedef struct {
+typedef struct VP8Macroblock {
     uint8_t skip;
     // todo: make it possible to check for at least (i4x4 or split_mv)
     // in one op. are others needed?
@@ -93,7 +93,7 @@ typedef struct {
     VP56mv bmv[16];
 } VP8Macroblock;
 
-typedef struct {
+typedef struct VP8ThreadData {
     DECLARE_ALIGNED(16, DCTELEM, block)[6][4][16];
     DECLARE_ALIGNED(16, DCTELEM, block_dc)[16];
     /**
@@ -123,7 +123,7 @@ typedef struct {
 } VP8ThreadData;
 
 #define MAX_THREADS 8
-typedef struct {
+typedef struct VP8Context {
     VP8ThreadData *thread_data;
     AVCodecContext *avctx;
     AVFrame *framep[4];
diff --git a/libavcodec/w32pthreads.h b/libavcodec/w32pthreads.h
index c4bbb9a51b..29185c71ec 100644
--- a/libavcodec/w32pthreads.h
+++ b/libavcodec/w32pthreads.h
@@ -43,7 +43,7 @@
 #include "libavutil/internal.h"
 #include "libavutil/mem.h"
 
-typedef struct {
+typedef struct pthread_t {
     void *handle;
     void *(*func)(void* arg);
     void *arg;
@@ -57,7 +57,7 @@ typedef CRITICAL_SECTION pthread_mutex_t;
 /* This is the CONDITIONAL_VARIABLE typedef for using Window's native
  * conditional variables on kernels 6.0+.
  * MinGW does not currently have this typedef. */
-typedef struct {
+typedef struct pthread_cond_t {
     void *ptr;
 } pthread_cond_t;
 
@@ -118,7 +118,7 @@ static inline int pthread_mutex_unlock(pthread_mutex_t *m)
 
 /* for pre-Windows 6.0 platforms we need to define and use our own condition
  * variable and api */
-typedef struct {
+typedef struct  win32_cond_t {
     pthread_mutex_t mtx_broadcast;
     pthread_mutex_t mtx_waiter_count;
     volatile int waiter_count;
diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c
index c36a027229..f608f661dd 100644
--- a/libavcodec/x86/dsputil_mmx.c
+++ b/libavcodec/x86/dsputil_mmx.c
@@ -1929,15 +1929,10 @@ static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src,
 
 #if HAVE_INLINE_ASM
 
-typedef void emulated_edge_mc_func(uint8_t *dst, const uint8_t *src,
-                                   int linesize, int block_w, int block_h,
-                                   int src_x, int src_y, int w, int h);
-
-static av_always_inline void gmc(uint8_t *dst, uint8_t *src,
-                                 int stride, int h, int ox, int oy,
-                                 int dxx, int dxy, int dyx, int dyy,
-                                 int shift, int r, int width, int height,
-                                 emulated_edge_mc_func *emu_edge_fn)
+static void gmc_mmx(uint8_t *dst, uint8_t *src,
+                    int stride, int h, int ox, int oy,
+                    int dxx, int dxy, int dyx, int dyy,
+                    int shift, int r, int width, int height)
 {
     const int w    = 8;
     const int ix   = ox  >> (16 + shift);
@@ -1952,7 +1947,6 @@ static av_always_inline void gmc(uint8_t *dst, uint8_t *src,
     const uint16_t dxy4[4] = { dxys, dxys, dxys, dxys };
     const uint16_t dyy4[4] = { dyys, dyys, dyys, dyys };
     const uint64_t shift2 = 2 * shift;
-    uint8_t edge_buf[(h + 1) * stride];
     int x, y;
 
     const int dxw = (dxx - (1 << (16 + shift))) * (w - 1);
@@ -1963,7 +1957,9 @@ static av_always_inline void gmc(uint8_t *dst, uint8_t *src,
         ((ox ^ (ox + dxw)) | (ox ^ (ox + dxh)) | (ox ^ (ox + dxw + dxh)) |
          (oy ^ (oy + dyw)) | (oy ^ (oy + dyh)) | (oy ^ (oy + dyw + dyh))) >> (16 + shift)
         // uses more than 16 bits of subpel mv (only at huge resolution)
-        || (dxx | dxy | dyx | dyy) & 15) {
+        || (dxx | dxy | dyx | dyy) & 15 ||
+        (unsigned)ix >= width  - w ||
+        (unsigned)iy >= height - h) {
         // FIXME could still use mmx for some of the rows
         ff_gmc_c(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy,
                  shift, r, width, height);
@@ -1971,11 +1967,6 @@ static av_always_inline void gmc(uint8_t *dst, uint8_t *src,
     }
 
     src += ix + iy * stride;
-    if ((unsigned)ix >= width  - w ||
-        (unsigned)iy >= height - h) {
-        emu_edge_fn(edge_buf, src, stride, w + 1, h + 1, ix, iy, width, height);
-        src = edge_buf;
-    }
 
     __asm__ volatile (
         "movd         %0, %%mm6         \n\t"
@@ -2054,36 +2045,6 @@ static av_always_inline void gmc(uint8_t *dst, uint8_t *src,
     }
 }
 
-#if HAVE_YASM
-#if ARCH_X86_32
-static void gmc_mmx(uint8_t *dst, uint8_t *src,
-                    int stride, int h, int ox, int oy,
-                    int dxx, int dxy, int dyx, int dyy,
-                    int shift, int r, int width, int height)
-{
-    gmc(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r,
-        width, height, &emulated_edge_mc_mmx);
-}
-#endif
-static void gmc_sse(uint8_t *dst, uint8_t *src,
-                    int stride, int h, int ox, int oy,
-                    int dxx, int dxy, int dyx, int dyy,
-                    int shift, int r, int width, int height)
-{
-    gmc(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r,
-        width, height, &emulated_edge_mc_sse);
-}
-#else
-static void gmc_mmx(uint8_t *dst, uint8_t *src,
-                    int stride, int h, int ox, int oy,
-                    int dxx, int dxy, int dyx, int dyy,
-                    int shift, int r, int width, int height)
-{
-    gmc(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r,
-        width, height, &ff_emulated_edge_mc_8);
-}
-#endif
-
 #define PREFETCH(name, op)                      \
 static void name(void *mem, int stride, int h)  \
 {                                               \
@@ -2584,9 +2545,7 @@ static void dsputil_init_mmx(DSPContext *c, AVCodecContext *avctx, int mm_flags)
         SET_HPEL_FUNCS(avg_no_rnd, 1,  8, mmx);
     }
 
-#if ARCH_X86_32 || !HAVE_YASM
     c->gmc = gmc_mmx;
-#endif
 
     c->add_bytes = add_bytes_mmx;
 
@@ -2841,9 +2800,6 @@ static void dsputil_init_sse(DSPContext *c, AVCodecContext *avctx, int mm_flags)
 
     if (!high_bit_depth)
         c->emulated_edge_mc = emulated_edge_mc_sse;
-#if HAVE_INLINE_ASM
-    c->gmc = gmc_sse;
-#endif
 #endif /* HAVE_YASM */
 }
 
diff --git a/libavcodec/x86/dsputil_mmx.h b/libavcodec/x86/dsputil_mmx.h
index 100381cb48..16d741d573 100644
--- a/libavcodec/x86/dsputil_mmx.h
+++ b/libavcodec/x86/dsputil_mmx.h
@@ -26,7 +26,7 @@
 #include "libavcodec/dsputil.h"
 #include "libavutil/x86/asm.h"
 
-typedef struct { uint64_t a, b; } xmm_reg;
+typedef struct xmm_reg { uint64_t a, b; } xmm_reg;
 
 extern const uint64_t ff_bone;
 extern const uint64_t ff_wtwo;
diff --git a/libavdevice/alsa-audio.h b/libavdevice/alsa-audio.h
index 00acf9f3ee..44b7c72fc0 100644
--- a/libavdevice/alsa-audio.h
+++ b/libavdevice/alsa-audio.h
@@ -45,7 +45,7 @@ typedef void (*ff_reorder_func)(const void *, void *, int);
 
 #define ALSA_BUFFER_SIZE_MAX 65536
 
-typedef struct {
+typedef struct AlsaData {
     AVClass *class;
     snd_pcm_t *h;
     int frame_size;  ///< bytes per sample * channels
diff --git a/libavdevice/sndio_common.h b/libavdevice/sndio_common.h
index 5111dc7a92..74f41f59bf 100644
--- a/libavdevice/sndio_common.h
+++ b/libavdevice/sndio_common.h
@@ -28,7 +28,7 @@
 #include "libavutil/log.h"
 #include "avdevice.h"
 
-typedef struct {
+typedef struct SndioData {
     AVClass *class;
     struct sio_hdl *hdl;
     enum AVCodecID codec_id;
diff --git a/libavfilter/af_asyncts.c b/libavfilter/af_asyncts.c
index 18892d4826..41cb47565e 100644
--- a/libavfilter/af_asyncts.c
+++ b/libavfilter/af_asyncts.c
@@ -127,7 +127,7 @@ static int request_frame(AVFilterLink *link)
                                                      nb_samples);
         if (!buf)
             return AVERROR(ENOMEM);
-        ret = avresample_convert(s->avr, (void**)buf->extended_data,
+        ret = avresample_convert(s->avr, buf->extended_data,
                                  buf->linesize[0], nb_samples, NULL, 0, 0);
         if (ret <= 0) {
             avfilter_unref_bufferp(&buf);
@@ -143,7 +143,7 @@ static int request_frame(AVFilterLink *link)
 
 static int write_to_fifo(ASyncContext *s, AVFilterBufferRef *buf)
 {
-    int ret = avresample_convert(s->avr, NULL, 0, 0, (void**)buf->extended_data,
+    int ret = avresample_convert(s->avr, NULL, 0, 0, buf->extended_data,
                                  buf->linesize[0], buf->audio->nb_samples);
     avfilter_unref_buffer(buf);
     return ret;
@@ -204,7 +204,7 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *buf)
             goto fail;
         }
 
-        avresample_read(s->avr, (void**)buf_out->extended_data, out_size);
+        avresample_read(s->avr, buf_out->extended_data, out_size);
         buf_out->pts = s->pts;
 
         if (delta > 0) {
@@ -224,7 +224,7 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *buf)
     avresample_read(s->avr, NULL, avresample_available(s->avr));
 
     s->pts = pts - avresample_get_delay(s->avr);
-    ret = avresample_convert(s->avr, NULL, 0, 0, (void**)buf->extended_data,
+    ret = avresample_convert(s->avr, NULL, 0, 0, buf->extended_data,
                              buf->linesize[0], buf->audio->nb_samples);
 
 fail:
diff --git a/libavfilter/af_resample.c b/libavfilter/af_resample.c
index eb2d2f9e21..c51f9d243b 100644
--- a/libavfilter/af_resample.c
+++ b/libavfilter/af_resample.c
@@ -149,7 +149,7 @@ static int request_frame(AVFilterLink *outlink)
         if (!buf)
             return AVERROR(ENOMEM);
 
-        ret = avresample_convert(s->avr, (void**)buf->extended_data,
+        ret = avresample_convert(s->avr, buf->extended_data,
                                  buf->linesize[0], nb_samples,
                                  NULL, 0, 0);
         if (ret <= 0) {
@@ -186,9 +186,9 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *buf)
             goto fail;
         }
 
-        ret     = avresample_convert(s->avr, (void**)buf_out->extended_data,
+        ret     = avresample_convert(s->avr, buf_out->extended_data,
                                      buf_out->linesize[0], nb_samples,
-                                     (void**)buf->extended_data, buf->linesize[0],
+                                     buf->extended_data, buf->linesize[0],
                                      buf->audio->nb_samples);
         if (ret < 0) {
             avfilter_unref_buffer(buf_out);
diff --git a/libavfilter/gradfun.h b/libavfilter/gradfun.h
index 3ceb13397d..939b129aaa 100644
--- a/libavfilter/gradfun.h
+++ b/libavfilter/gradfun.h
@@ -25,7 +25,7 @@
 #include "avfilter.h"
 
 /// Holds instance-specific information for gradfun.
-typedef struct {
+typedef struct GradFunContext {
     int thresh;    ///< threshold for gradient algorithm
     int radius;    ///< blur radius
     int chroma_w;  ///< width of the chroma planes
diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c
index 7d2ea92a7f..9918272924 100644
--- a/libavfilter/vf_pad.c
+++ b/libavfilter/vf_pad.c
@@ -126,9 +126,9 @@ static int config_input(AVFilterLink *inlink)
     var_values[VAR_IN_H]  = var_values[VAR_IH] = inlink->h;
     var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
     var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
-    var_values[VAR_A]     = (float) inlink->w / inlink->h;
+    var_values[VAR_A]     = (double) inlink->w / inlink->h;
     var_values[VAR_SAR]   = inlink->sample_aspect_ratio.num ?
-        (float) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
+        (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
     var_values[VAR_DAR]   = var_values[VAR_A] * var_values[VAR_SAR];
     var_values[VAR_HSUB]  = 1 << pad->draw.hsub_max;
     var_values[VAR_VSUB]  = 1 << pad->draw.vsub_max;
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index 49988bfbd8..c7cbdfe2c8 100644
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -172,9 +172,9 @@ static int config_props(AVFilterLink *outlink)
     var_values[VAR_IN_H]  = var_values[VAR_IH] = inlink->h;
     var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
     var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
-    var_values[VAR_A]     = (float) inlink->w / inlink->h;
+    var_values[VAR_A]     = (double) inlink->w / inlink->h;
     var_values[VAR_SAR]   = inlink->sample_aspect_ratio.num ?
-        (float) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
+        (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
     var_values[VAR_DAR]   = var_values[VAR_A] * var_values[VAR_SAR];
     var_values[VAR_HSUB]  = 1<<av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
     var_values[VAR_VSUB]  = 1<<av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
diff --git a/libavfilter/yadif.h b/libavfilter/yadif.h
index 45bb1dc8ee..41691de65d 100644
--- a/libavfilter/yadif.h
+++ b/libavfilter/yadif.h
@@ -22,7 +22,7 @@
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 
-typedef struct {
+typedef struct YADIFContext {
     /**
      * 0: send 1 frame for each frame
      * 1: send 1 frame for each field
diff --git a/libavformat/asf.h b/libavformat/asf.h
index 5562865f68..822cd6bbea 100644
--- a/libavformat/asf.h
+++ b/libavformat/asf.h
@@ -28,7 +28,7 @@
 
 #define PACKET_SIZE 3200
 
-typedef struct {
+typedef struct ASFStream {
     int num;
     unsigned char seq;
     /* use for reading */
@@ -49,7 +49,7 @@ typedef struct {
     uint32_t palette[256];
 } ASFStream;
 
-typedef struct {
+typedef struct ASFMainHeader {
     ff_asf_guid guid;                  ///< generated by client computer
     uint64_t file_size;         /**< in bytes
                                  *   invalid if broadcasting */
@@ -75,7 +75,7 @@ typedef struct {
 } ASFMainHeader;
 
 
-typedef struct {
+typedef struct ASFIndex {
     uint32_t packet_number;
     uint16_t packet_count;
 } ASFIndex;
diff --git a/libavformat/audiointerleave.h b/libavformat/audiointerleave.h
index b37c8aefbd..4d77832fa1 100644
--- a/libavformat/audiointerleave.h
+++ b/libavformat/audiointerleave.h
@@ -26,7 +26,7 @@
 #include "libavutil/fifo.h"
 #include "avformat.h"
 
-typedef struct {
+typedef struct AudioInterleaveContext {
     AVFifoBuffer *fifo;
     unsigned fifo_size;           ///< size of currently allocated FIFO
     uint64_t dts;                 ///< current dts
diff --git a/libavformat/httpauth.h b/libavformat/httpauth.h
index 62dd25e637..fc17c94859 100644
--- a/libavformat/httpauth.h
+++ b/libavformat/httpauth.h
@@ -32,7 +32,7 @@ typedef enum HTTPAuthType {
     HTTP_AUTH_DIGEST,      /**< HTTP 1.1 Digest auth from RFC 2617 */
 } HTTPAuthType;
 
-typedef struct {
+typedef struct DigestParams {
     char nonce[300];       /**< Server specified nonce */
     char algorithm[10];    /**< Server specified digest algorithm */
     char qop[30];          /**< Quality of protection, containing the one
@@ -52,7 +52,7 @@ typedef struct {
  * HTTP Authentication state structure. Must be zero-initialized
  * before used with the functions below.
  */
-typedef struct {
+typedef struct HTTPAuthState {
     /**
      * The currently chosen auth type.
      */
diff --git a/libavformat/isom.h b/libavformat/isom.h
index 370ba43a25..f6eba56220 100644
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -42,18 +42,18 @@ int ff_mov_lang_to_iso639(unsigned code, char to[4]);
  * Here we just use what is needed to read the chunks
  */
 
-typedef struct {
+typedef struct MOVStts {
     int count;
     int duration;
 } MOVStts;
 
-typedef struct {
+typedef struct MOVStsc {
     int first;
     int count;
     int id;
 } MOVStsc;
 
-typedef struct {
+typedef struct MOVDref {
     uint32_t type;
     char *path;
     char *dir;
@@ -62,14 +62,14 @@ typedef struct {
     int16_t nlvl_to, nlvl_from;
 } MOVDref;
 
-typedef struct {
+typedef struct MOVAtom {
     uint32_t type;
     int64_t size; /* total size (excluding the size and type fields) */
 } MOVAtom;
 
 struct MOVParseTableEntry;
 
-typedef struct {
+typedef struct MOVFragment {
     unsigned track_id;
     uint64_t base_data_offset;
     uint64_t moof_offset;
@@ -79,7 +79,7 @@ typedef struct {
     unsigned flags;
 } MOVFragment;
 
-typedef struct {
+typedef struct MOVTrackExt {
     unsigned track_id;
     unsigned stsd_id;
     unsigned duration;
@@ -87,7 +87,7 @@ typedef struct {
     unsigned flags;
 } MOVTrackExt;
 
-typedef struct {
+typedef struct MOVSbgp {
     unsigned int count;
     unsigned int index;
 } MOVSbgp;
diff --git a/libavformat/mms.h b/libavformat/mms.h
index cbfa79a838..57e3d7e18a 100644
--- a/libavformat/mms.h
+++ b/libavformat/mms.h
@@ -23,11 +23,11 @@
 
 #include "url.h"
 
-typedef struct {
+typedef struct MMSStream {
     int id;
 }MMSStream;
 
-typedef struct {
+typedef struct MMSContext {
     URLContext *mms_hd;                  ///< TCP connection handle
     MMSStream *streams;
 
diff --git a/libavformat/movenc.h b/libavformat/movenc.h
index da6f19bbe0..7c87f6b14d 100644
--- a/libavformat/movenc.h
+++ b/libavformat/movenc.h
@@ -62,13 +62,13 @@ typedef struct HintSample {
     int own_data;
 } HintSample;
 
-typedef struct {
+typedef struct HintSampleQueue {
     int size;
     int len;
     HintSample *samples;
 } HintSampleQueue;
 
-typedef struct {
+typedef struct MOVFragmentInfo {
     int64_t offset;
     int64_t time;
     int64_t duration;
diff --git a/libavformat/mpegts.h b/libavformat/mpegts.h
index eae9d46ad4..98c4b93736 100644
--- a/libavformat/mpegts.h
+++ b/libavformat/mpegts.h
@@ -65,7 +65,7 @@ int ff_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt,
                            const uint8_t *buf, int len);
 void ff_mpegts_parse_close(MpegTSContext *ts);
 
-typedef struct {
+typedef struct SLConfigDescr {
     int use_au_start;
     int use_au_end;
     int use_rand_acc_pt;
@@ -82,7 +82,7 @@ typedef struct {
     int packet_seq_num_len;
 } SLConfigDescr;
 
-typedef struct {
+typedef struct Mp4Descr {
     int es_id;
     int dec_config_descr_len;
     uint8_t *dec_config_descr;
diff --git a/libavformat/mxf.h b/libavformat/mxf.h
index ed3225b769..a91d53fdb2 100644
--- a/libavformat/mxf.h
+++ b/libavformat/mxf.h
@@ -55,13 +55,13 @@ enum MXFFrameLayout {
     SegmentedFrame,
 };
 
-typedef struct {
+typedef struct KLVPacket {
     UID key;
     int64_t offset;
     uint64_t length;
 } KLVPacket;
 
-typedef struct {
+typedef struct MXFCodecUL {
     UID uid;
     unsigned matching_len;
     int id;
diff --git a/libavformat/nut.h b/libavformat/nut.h
index 39743db1b3..53b5ebc4db 100644
--- a/libavformat/nut.h
+++ b/libavformat/nut.h
@@ -53,14 +53,14 @@ typedef enum{
     FLAG_INVALID    =8192, ///<if set, frame_code is invalid
 } Flag;
 
-typedef struct {
+typedef struct Syncpoint {
     uint64_t pos;
     uint64_t back_ptr;
 //    uint64_t global_key_pts;
     int64_t ts;
 } Syncpoint;
 
-typedef struct {
+typedef struct FrameCode {
     uint16_t flags;
     uint8_t  stream_id;
     uint16_t size_mul;
@@ -70,7 +70,7 @@ typedef struct {
     uint8_t  header_idx;
 } FrameCode;
 
-typedef struct {
+typedef struct StreamContext {
     int last_flags;
     int skip_until_key_frame;
     int64_t last_pts;
@@ -82,11 +82,11 @@ typedef struct {
     int64_t *keyframe_pts;
 } StreamContext;
 
-typedef struct {
+typedef struct ChapterContext {
     AVRational *time_base;
 } ChapterContext;
 
-typedef struct {
+typedef struct NUTContext {
     AVFormatContext *avf;
 //    int written_packet_size;
 //    int64_t packet_start;
@@ -110,7 +110,7 @@ typedef struct {
 extern const AVCodecTag ff_nut_subtitle_tags[];
 extern const AVCodecTag ff_nut_video_tags[];
 
-typedef struct {
+typedef struct Dispositions {
     char str[9];
     int flag;
 } Dispositions;
diff --git a/libavformat/rtpdec.h b/libavformat/rtpdec.h
index 521b2f5be4..3d7019024a 100644
--- a/libavformat/rtpdec.h
+++ b/libavformat/rtpdec.h
@@ -72,7 +72,7 @@ void ff_rtp_send_punch_packets(URLContext* rtp_handle);
 int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, int count);
 
 // these statistics are used for rtcp receiver reports...
-typedef struct {
+typedef struct RTPStatistics {
     uint16_t max_seq;           ///< highest sequence number seen
     uint32_t cycles;            ///< shifted count of sequence number cycles
     uint32_t base_seq;          ///< base sequence number
diff --git a/libavformat/swf.h b/libavformat/swf.h
index 3c0c6076f2..5f0d486233 100644
--- a/libavformat/swf.h
+++ b/libavformat/swf.h
@@ -70,7 +70,7 @@
 #undef NDEBUG
 #include <assert.h>
 
-typedef struct {
+typedef struct SWFContext {
     int64_t duration_pos;
     int64_t tag_pos;
     int64_t vframes_pos;
diff --git a/libavformat/yuv4mpeg.c b/libavformat/yuv4mpeg.c
index a53d30fb37..b67209423c 100644
--- a/libavformat/yuv4mpeg.c
+++ b/libavformat/yuv4mpeg.c
@@ -497,7 +497,7 @@ static int yuv4_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     int i;
     char header[MAX_FRAME_HEADER+1];
-    int packet_size, width, height;
+    int packet_size, width, height, ret;
     AVStream *st = s->streams[0];
     struct frame_attributes *s1 = s->priv_data;
 
@@ -508,20 +508,28 @@ static int yuv4_read_packet(AVFormatContext *s, AVPacket *pkt)
             break;
         }
     }
-    if (i == MAX_FRAME_HEADER)
-        return -1;
+    if (s->pb->error)
+        return s->pb->error;
+    else if (s->pb->eof_reached)
+        return AVERROR_EOF;
+    else if (i == MAX_FRAME_HEADER)
+        return AVERROR_INVALIDDATA;
+
     if (strncmp(header, Y4M_FRAME_MAGIC, strlen(Y4M_FRAME_MAGIC)))
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     width  = st->codec->width;
     height = st->codec->height;
 
     packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
     if (packet_size < 0)
-        return -1;
+        return packet_size;
 
-    if (av_get_packet(s->pb, pkt, packet_size) != packet_size)
-        return AVERROR(EIO);
+    ret = av_get_packet(s->pb, pkt, packet_size);
+    if (ret < 0)
+        return ret;
+    else if (ret != packet_size)
+        return s->pb->eof_reached ? AVERROR_EOF : AVERROR(EIO);
 
     if (st->codec->coded_frame) {
         st->codec->coded_frame->interlaced_frame = s1->interlaced_frame;
diff --git a/libavresample/audio_data.c b/libavresample/audio_data.c
index d624ad3796..199a68cb11 100644
--- a/libavresample/audio_data.c
+++ b/libavresample/audio_data.c
@@ -62,7 +62,7 @@ int ff_audio_data_set_channels(AudioData *a, int channels)
     return 0;
 }
 
-int ff_audio_data_init(AudioData *a, void **src, int plane_size, int channels,
+int ff_audio_data_init(AudioData *a, uint8_t **src, int plane_size, int channels,
                        int nb_samples, enum AVSampleFormat sample_fmt,
                        int read_only, const char *name)
 {
diff --git a/libavresample/audio_data.h b/libavresample/audio_data.h
index 4609ebc284..558e7e67ec 100644
--- a/libavresample/audio_data.h
+++ b/libavresample/audio_data.h
@@ -73,7 +73,7 @@ int ff_audio_data_set_channels(AudioData *a, int channels);
  * @param name            name for debug logging (can be NULL)
  * @return                0 on success, negative AVERROR value on error
  */
-int ff_audio_data_init(AudioData *a, void **src, int plane_size, int channels,
+int ff_audio_data_init(AudioData *a, uint8_t **src, int plane_size, int channels,
                        int nb_samples, enum AVSampleFormat sample_fmt,
                        int read_only, const char *name);
 
diff --git a/libavresample/avresample-test.c b/libavresample/avresample-test.c
index 0d4f2df37c..ab49e489cd 100644
--- a/libavresample/avresample-test.c
+++ b/libavresample/avresample-test.c
@@ -305,8 +305,8 @@ int main(int argc, char **argv)
                                 goto end;
                             }
 
-                            ret = avresample_convert(s, (void **)out_data, out_linesize, out_rate * 6,
-                                                        (void **) in_data,  in_linesize,  in_rate * 6);
+                            ret = avresample_convert(s, out_data, out_linesize, out_rate * 6,
+                                                         in_data,  in_linesize,  in_rate * 6);
                             if (ret < 0) {
                                 char errbuf[256];
                                 av_strerror(ret, errbuf, sizeof(errbuf));
diff --git a/libavresample/avresample.h b/libavresample/avresample.h
index b93aba5d73..ea93952e2e 100644
--- a/libavresample/avresample.h
+++ b/libavresample/avresample.h
@@ -234,8 +234,8 @@ int avresample_set_compensation(AVAudioResampleContext *avr, int sample_delta,
  *                        not including converted samples added to the internal
  *                        output FIFO
  */
-int avresample_convert(AVAudioResampleContext *avr, void **output,
-                       int out_plane_size, int out_samples, void **input,
+int avresample_convert(AVAudioResampleContext *avr, uint8_t **output,
+                       int out_plane_size, int out_samples, uint8_t **input,
                        int in_plane_size, int in_samples);
 
 /**
@@ -287,6 +287,6 @@ int avresample_available(AVAudioResampleContext *avr);
  * @param nb_samples  number of samples to read from the FIFO
  * @return            the number of samples written to output
  */
-int avresample_read(AVAudioResampleContext *avr, void **output, int nb_samples);
+int avresample_read(AVAudioResampleContext *avr, uint8_t **output, int nb_samples);
 
 #endif /* AVRESAMPLE_AVRESAMPLE_H */
diff --git a/libavresample/utils.c b/libavresample/utils.c
index 81292930d4..2a0aacd4c0 100644
--- a/libavresample/utils.c
+++ b/libavresample/utils.c
@@ -247,8 +247,8 @@ static int handle_buffered_output(AVAudioResampleContext *avr,
 }
 
 int attribute_align_arg avresample_convert(AVAudioResampleContext *avr,
-                                           void **output, int out_plane_size,
-                                           int out_samples, void **input,
+                                           uint8_t **output, int out_plane_size,
+                                           int out_samples, uint8_t **input,
                                            int in_plane_size, int in_samples)
 {
     AudioData input_buffer;
@@ -410,11 +410,11 @@ int avresample_available(AVAudioResampleContext *avr)
     return av_audio_fifo_size(avr->out_fifo);
 }
 
-int avresample_read(AVAudioResampleContext *avr, void **output, int nb_samples)
+int avresample_read(AVAudioResampleContext *avr, uint8_t **output, int nb_samples)
 {
     if (!output)
         return av_audio_fifo_drain(avr->out_fifo, nb_samples);
-    return av_audio_fifo_read(avr->out_fifo, output, nb_samples);
+    return av_audio_fifo_read(avr->out_fifo, (void**)output, nb_samples);
 }
 
 unsigned avresample_version(void)
diff --git a/libavresample/version.h b/libavresample/version.h
index c4741e420e..53ba802d85 100644
--- a/libavresample/version.h
+++ b/libavresample/version.h
@@ -19,9 +19,9 @@
 #ifndef AVRESAMPLE_VERSION_H
 #define AVRESAMPLE_VERSION_H
 
-#define LIBAVRESAMPLE_VERSION_MAJOR  0
+#define LIBAVRESAMPLE_VERSION_MAJOR  1
 #define LIBAVRESAMPLE_VERSION_MINOR  0
-#define LIBAVRESAMPLE_VERSION_MICRO  3
+#define LIBAVRESAMPLE_VERSION_MICRO  0
 
 #define LIBAVRESAMPLE_VERSION_INT  AV_VERSION_INT(LIBAVRESAMPLE_VERSION_MAJOR, \
                                                   LIBAVRESAMPLE_VERSION_MINOR, \
diff --git a/libavutil/dict.h b/libavutil/dict.h
index 7f9924b128..fde3650184 100644
--- a/libavutil/dict.h
+++ b/libavutil/dict.h
@@ -74,7 +74,7 @@
 #define AV_DICT_APPEND         32   /**< If the entry already exists, append to it.  Note that no
                                       delimiter is added, the strings are simply concatenated. */
 
-typedef struct {
+typedef struct AVDictionaryEntry {
     char *key;
     char *value;
 } AVDictionaryEntry;
diff --git a/libavutil/lfg.h b/libavutil/lfg.h
index 854ffce737..ec90562cf2 100644
--- a/libavutil/lfg.h
+++ b/libavutil/lfg.h
@@ -22,7 +22,7 @@
 #ifndef AVUTIL_LFG_H
 #define AVUTIL_LFG_H
 
-typedef struct {
+typedef struct AVLFG {
     unsigned int state[64];
     int index;
 } AVLFG;
diff --git a/libswscale/ppc/swscale_altivec.c b/libswscale/ppc/swscale_altivec.c
index c621866eed..e013f03c3b 100644
--- a/libswscale/ppc/swscale_altivec.c
+++ b/libswscale/ppc/swscale_altivec.c
@@ -32,78 +32,37 @@
 
 #define vzero vec_splat_s32(0)
 
-static inline void altivec_packIntArrayToCharArray(int *val, uint8_t *dest,
-                                                   int dstW)
+#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do {     \
+        vector signed short l2  = vec_ld(((x) << 1) + 16, src); \
+        vector signed short ls  = vec_perm(l1, l2, perm);       \
+        vector signed int   i1  = vec_mule(filter, ls);         \
+        vector signed int   i2  = vec_mulo(filter, ls);         \
+        vector signed int   vf1 = vec_mergeh(i1, i2);           \
+        vector signed int   vf2 = vec_mergel(i1, i2);           \
+        d1 = vec_add(d1, vf1);                                  \
+        d2 = vec_add(d2, vf2);                                  \
+        l1 = l2;                                                \
+    } while (0)
+
+static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize,
+                                  const int16_t **src, uint8_t *dest,
+                                  const uint8_t *dither, int offset, int x)
 {
-    register int i;
+    register int i, j;
+    DECLARE_ALIGNED(16, int, val)[16];
+    vector signed int vo1, vo2, vo3, vo4;
+    vector unsigned short vs1, vs2;
+    vector unsigned char vf;
     vector unsigned int altivec_vectorShiftInt19 =
         vec_add(vec_splat_u32(10), vec_splat_u32(9));
-    if ((uintptr_t)dest % 16) {
-        /* badly aligned store, we force store alignment */
-        /* and will handle load misalignment on val w/ vec_perm */
-        vector unsigned char perm1;
-        vector signed int v1;
-        for (i = 0; (i < dstW) &&
-             (((uintptr_t)dest + i) % 16); i++) {
-            int t = val[i] >> 19;
-            dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t);
-        }
-        perm1 = vec_lvsl(i << 2, val);
-        v1    = vec_ld(i << 2, val);
-        for (; i < (dstW - 15); i += 16) {
-            int offset = i << 2;
-            vector signed int v2  = vec_ld(offset + 16, val);
-            vector signed int v3  = vec_ld(offset + 32, val);
-            vector signed int v4  = vec_ld(offset + 48, val);
-            vector signed int v5  = vec_ld(offset + 64, val);
-            vector signed int v12 = vec_perm(v1, v2, perm1);
-            vector signed int v23 = vec_perm(v2, v3, perm1);
-            vector signed int v34 = vec_perm(v3, v4, perm1);
-            vector signed int v45 = vec_perm(v4, v5, perm1);
-
-            vector signed int vA      = vec_sra(v12, altivec_vectorShiftInt19);
-            vector signed int vB      = vec_sra(v23, altivec_vectorShiftInt19);
-            vector signed int vC      = vec_sra(v34, altivec_vectorShiftInt19);
-            vector signed int vD      = vec_sra(v45, altivec_vectorShiftInt19);
-            vector unsigned short vs1 = vec_packsu(vA, vB);
-            vector unsigned short vs2 = vec_packsu(vC, vD);
-            vector unsigned char vf   = vec_packsu(vs1, vs2);
-            vec_st(vf, i, dest);
-            v1 = v5;
-        }
-    } else { // dest is properly aligned, great
-        for (i = 0; i < (dstW - 15); i += 16) {
-            int offset = i << 2;
-            vector signed int v1      = vec_ld(offset, val);
-            vector signed int v2      = vec_ld(offset + 16, val);
-            vector signed int v3      = vec_ld(offset + 32, val);
-            vector signed int v4      = vec_ld(offset + 48, val);
-            vector signed int v5      = vec_sra(v1, altivec_vectorShiftInt19);
-            vector signed int v6      = vec_sra(v2, altivec_vectorShiftInt19);
-            vector signed int v7      = vec_sra(v3, altivec_vectorShiftInt19);
-            vector signed int v8      = vec_sra(v4, altivec_vectorShiftInt19);
-            vector unsigned short vs1 = vec_packsu(v5, v6);
-            vector unsigned short vs2 = vec_packsu(v7, v8);
-            vector unsigned char vf   = vec_packsu(vs1, vs2);
-            vec_st(vf, i, dest);
-        }
-    }
-    for (; i < dstW; i++) {
-        int t = val[i] >> 19;
-        dest[i] = (t < 0) ? 0 : ((t > 255) ? 255 : t);
-    }
-}
 
-// FIXME remove the usage of scratch buffers.
-static void yuv2planeX_altivec(const int16_t *filter, int filterSize,
-                               const int16_t **src, uint8_t *dest, int dstW,
-                               const uint8_t *dither, int offset)
-{
-    register int i, j;
-    DECLARE_ALIGNED(16, int, val)[dstW];
+    for (i = 0; i < 16; i++)
+        val[i] = dither[(x + i + offset) & 7] << 12;
 
-    for (i = 0; i < dstW; i++)
-        val[i] = dither[(i + offset) & 7] << 12;
+    vo1 = vec_ld(0,  val);
+    vo2 = vec_ld(16, val);
+    vo3 = vec_ld(32, val);
+    vo4 = vec_ld(48, val);
 
     for (j = 0; j < filterSize; j++) {
         vector signed short l1, vLumFilter = vec_ld(j << 1, filter);
@@ -111,36 +70,51 @@ static void yuv2planeX_altivec(const int16_t *filter, int filterSize,
         vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0);
         vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter
 
-        perm = vec_lvsl(0, src[j]);
-        l1   = vec_ld(0, src[j]);
+        perm = vec_lvsl(x << 1, src[j]);
+        l1   = vec_ld(x << 1, src[j]);
 
-        for (i = 0; i < (dstW - 7); i += 8) {
-            int offset = i << 2;
-            vector signed short l2 = vec_ld((i << 1) + 16, src[j]);
+        yuv2planeX_8(vo1, vo2, l1, src[j], x,     perm, vLumFilter);
+        yuv2planeX_8(vo3, vo4, l1, src[j], x + 8, perm, vLumFilter);
+    }
 
-            vector signed int v1 = vec_ld(offset, val);
-            vector signed int v2 = vec_ld(offset + 16, val);
+    vo1 = vec_sra(vo1, altivec_vectorShiftInt19);
+    vo2 = vec_sra(vo2, altivec_vectorShiftInt19);
+    vo3 = vec_sra(vo3, altivec_vectorShiftInt19);
+    vo4 = vec_sra(vo4, altivec_vectorShiftInt19);
+    vs1 = vec_packsu(vo1, vo2);
+    vs2 = vec_packsu(vo3, vo4);
+    vf  = vec_packsu(vs1, vs2);
+    vec_st(vf, 0, dest);
+}
 
-            vector signed short ls = vec_perm(l1, l2, perm); // lumSrc[j][i] ... lumSrc[j][i+7]
+static inline void yuv2planeX_u(const int16_t *filter, int filterSize,
+                                const int16_t **src, uint8_t *dest, int dstW,
+                                const uint8_t *dither, int offset, int x)
+{
+    int i, j;
 
-            vector signed int i1 = vec_mule(vLumFilter, ls);
-            vector signed int i2 = vec_mulo(vLumFilter, ls);
+    for (i = x; i < dstW; i++) {
+        int t = dither[(i + offset) & 7] << 12;
+        for (j = 0; j < filterSize; j++)
+            t += src[j][i] * filter[j];
+        dest[i] = av_clip_uint8(t >> 19);
+    }
+}
 
-            vector signed int vf1 = vec_mergeh(i1, i2);
-            vector signed int vf2 = vec_mergel(i1, i2); // lumSrc[j][i] * lumFilter[j] ... lumSrc[j][i+7] * lumFilter[j]
+static void yuv2planeX_altivec(const int16_t *filter, int filterSize,
+                               const int16_t **src, uint8_t *dest, int dstW,
+                               const uint8_t *dither, int offset)
+{
+    int dst_u = -(uintptr_t)dest & 15;
+    int i;
 
-            vector signed int vo1 = vec_add(v1, vf1);
-            vector signed int vo2 = vec_add(v2, vf2);
+    yuv2planeX_u(filter, filterSize, src, dest, dst_u, dither, offset, 0);
 
-            vec_st(vo1, offset, val);
-            vec_st(vo2, offset + 16, val);
+    for (i = dst_u; i < dstW - 15; i += 16)
+        yuv2planeX_16_altivec(filter, filterSize, src, dest + i, dither,
+                              offset, i);
 
-            l1 = l2;
-        }
-        for (; i < dstW; i++)
-            val[i] += src[j][i] * filter[j];
-    }
-    altivec_packIntArrayToCharArray(val, dest, dstW);
+    yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i);
 }
 
 static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
diff --git a/libswscale/swscale.h b/libswscale/swscale.h
index a9e803db43..71cb5d8108 100644
--- a/libswscale/swscale.h
+++ b/libswscale/swscale.h
@@ -115,13 +115,13 @@ const int *sws_getCoefficients(int colorspace);
 
 // when used for filters they must have an odd number of elements
 // coeffs cannot be shared between vectors
-typedef struct {
+typedef struct SwsVector {
     double *coeff;              ///< pointer to the list of coefficients
     int length;                 ///< number of coefficients in the vector
 } SwsVector;
 
 // vectors can be shared
-typedef struct {
+typedef struct SwsFilter {
     SwsVector *lumH;
     SwsVector *lumV;
     SwsVector *chrH;