diff --git a/.gitignore b/.gitignore
index 3e8ed0046e..c922b8855d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,5 +44,4 @@ tools/pktdumper
 tools/probetest
 tools/qt-faststart
 tools/trasher
-tools/trasher*.d
 version.h
diff --git a/doc/TODO b/doc/TODO
deleted file mode 100644
index 8ff8a6b388..0000000000
--- a/doc/TODO
+++ /dev/null
@@ -1,82 +0,0 @@
-ffmpeg TODO list:
-----------------
-
-Fabrice's TODO list: (unordered)
--------------------
-Short term:
-
-- use AVFMTCTX_DISCARD_PKT in ffplay so that DV has a chance to work
-- add RTSP regression test (both client and server)
-- make ffserver allocate AVFormatContext
-- clean up (incompatible change, for 0.5.0):
-    * AVStream -> AVComponent
-    * AVFormatContext -> AVInputStream/AVOutputStream
-    * suppress rate_emu from AVCodecContext
-- add new float/integer audio filterting and conversion : suppress
-  CODEC_ID_PCM_xxc and use CODEC_ID_RAWAUDIO.
-- fix telecine and frame rate conversion
-
-Long term (ask me if you want to help):
-
-- commit new imgconvert API and new PIX_FMT_xxx alpha formats
-- commit new LGPL'ed float and integer-only AC3 decoder
-- add WMA integer-only decoder
-- add new MPEG4-AAC audio decoder (both integer-only and float version)
-
-Michael's TODO list: (unordered) (if anyone wanna help with sth, just ask)
--------------------
-- optimize H264 CABAC
-- more optimizations
-- simper rate control
-
-Philip'a TODO list: (alphabetically ordered) (please help)
-------------------
-- Add a multi-ffm filetype so that feeds can be recorded into multiple files rather
-  than one big file.
-- Authenticated users support -- where the authentication is in the URL
-- Change ASF files so that the embedded timestamp in the frames is right rather
-  than being an offset from the start of the stream
-- Make ffm files more resilient to changes in the codec structures so that you
-  can play old ffm files.
-
-Baptiste's TODO list:
------------------
-- mov edit list support (AVEditList)
-- YUV 10 bit per component support "2vuy"
-- mxf muxer
-- mpeg2 non linear quantizer
-
-unassigned TODO: (unordered)
----------------
-- use AVFrame for audio codecs too
-- rework aviobuf.c buffering strategy and fix url_fskip
-- generate optimal huffman tables for mjpeg encoding
-- fix ffserver regression tests
-- support xvids motion estimation
-- support x264s motion estimation
-- support x264s rate control
-- SNOW: non translational motion compensation
-- SNOW: more optimal quantization
-- SNOW: 4x4 block support
-- SNOW: 1/8 pel motion compensation support
-- SNOW: iterative motion estimation based on subsampled images
-- SNOW: try B frames and MCTF and see how their PSNR/bitrate/complexity behaves
-- SNOW: try to use the wavelet transformed MC-ed reference frame as context for the entropy coder
-- SNOW: think about/analyize how to make snow use multiple cpus/threads
-- SNOW: finish spec
-- FLAC: lossy encoding (viterbi and naive scalar quantization)
-- libavfilter
-- JPEG2000 decoder & encoder
-- MPEG4 GMC encoding support
-- macroblock based pixel format (better cache locality, somewhat complex, one paper claimed it faster for high res)
-- regression tests for codecs which do not have an encoder (I+P-frame bitstream in the 'master' branch)
-- add support for using mplayers video filters to ffmpeg
-- H264 encoder
-- per MB ratecontrol (so VCD and such do work better)
-- write a script which iteratively changes all functions between always_inline and noinline and benchmarks the result to find the best set of inlined functions
-- convert all the non SIMD asm into small asm vs. C testcases and submit them to the gcc devels so they can improve gcc
-- generic audio mixing API
-- extract PES packetizer from PS muxer and use it for new TS muxer
-- implement automatic AVBistreamFilter activation
-- make cabac encoder use bytestream (see http://trac.videolan.org/x264/changeset/?format=diff&new=651)
-- merge imdct and windowing, the current code does considerable amounts of redundant work
diff --git a/ffmpeg.c b/ffmpeg.c
index dc746488c3..781ebf5fa4 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -1155,7 +1155,7 @@ static void do_video_out(AVFormatContext *s,
                          AVOutputStream *ost,
                          AVInputStream *ist,
                          AVFrame *in_picture,
-                         int *frame_size)
+                         int *frame_size, float quality)
 {
     int nb_frames, i, ret, av_unused resample_changed;
     AVFrame *final_picture, *formatted_picture;
@@ -1286,7 +1286,7 @@ static void do_video_out(AVFormatContext *s,
 
             /* handles sameq here. This is not correct because it may
                not be a global option */
-            big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
+            big_picture.quality = quality;
             if(!me_threshold)
                 big_picture.pict_type = 0;
 //            big_picture.pts = AV_NOPTS_VALUE;
@@ -1530,6 +1530,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
 #if CONFIG_AVFILTER
     int frame_available;
 #endif
+    float quality;
 
     AVPacket avpkt;
     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
@@ -1610,7 +1611,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
 
                     ret = avcodec_decode_video2(ist->st->codec,
                                                 &picture, &got_output, &avpkt);
-                    ist->st->quality= picture.quality;
+                    quality = same_quality ? picture.quality : 0;
                     if (ret < 0)
                         goto fail_decode;
                     if (!got_output) {
@@ -1736,7 +1737,8 @@ static int output_packet(AVInputStream *ist, int ist_index,
                             if (ost->picref->video && !ost->frame_aspect_ratio)
                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
 #endif
-                            do_video_out(os, ost, ist, &picture, &frame_size);
+                            do_video_out(os, ost, ist, &picture, &frame_size,
+                                         same_quality ? quality : ost->st->codec->global_quality);
                             if (vstats_filename && frame_size)
                                 do_video_stats(os, ost, frame_size);
                             break;
@@ -3602,8 +3604,7 @@ static void new_video_stream(AVFormatContext *oc, int file_idx)
             video_enc->gop_size = 0;
         if (video_qscale || same_quality) {
             video_enc->flags |= CODEC_FLAG_QSCALE;
-            video_enc->global_quality=
-                st->quality = FF_QP2LAMBDA * video_qscale;
+            video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
         }
 
         if(intra_matrix)
@@ -3721,7 +3722,7 @@ static void new_audio_stream(AVFormatContext *oc, int file_idx)
 
         if (audio_qscale > QSCALE_NONE) {
             audio_enc->flags |= CODEC_FLAG_QSCALE;
-            audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
+            audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
         }
         if (audio_channels)
             audio_enc->channels = audio_channels;
diff --git a/ffserver.c b/ffserver.c
index b2a32bb9fa..d589f6decf 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -2128,13 +2128,12 @@ static int open_input_stream(HTTPContext *c, const char *info)
     char buf[128];
     char input_filename[1024];
     AVFormatContext *s = NULL;
-    int buf_size, i, ret;
+    int i, ret;
     int64_t stream_pos;
 
     /* find file name */
     if (c->stream->feed) {
         strcpy(input_filename, c->stream->feed->feed_filename);
-        buf_size = FFM_PACKET_SIZE;
         /* compute position (absolute time) */
         if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
             if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
@@ -2146,7 +2145,6 @@ static int open_input_stream(HTTPContext *c, const char *info)
             stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
     } else {
         strcpy(input_filename, c->stream->feed_filename);
-        buf_size = 0;
         /* compute position (relative time) */
         if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
             if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
diff --git a/libavcodec/binkaudio.c b/libavcodec/binkaudio.c
index ff36458c7e..d7dbd283e8 100644
--- a/libavcodec/binkaudio.c
+++ b/libavcodec/binkaudio.c
@@ -90,8 +90,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
         return -1;
     }
 
-    if (avctx->extradata && avctx->extradata_size > 0)
-        s->version_b = avctx->extradata[0];
+    s->version_b = avctx->extradata && avctx->extradata[3] == 'b';
 
     if (avctx->codec->id == CODEC_ID_BINKAUDIO_RDFT) {
         // audio is already interleaved for the RDFT format variant
diff --git a/libavcodec/flashsv.c b/libavcodec/flashsv.c
index a57e851078..c80fa33594 100644
--- a/libavcodec/flashsv.c
+++ b/libavcodec/flashsv.c
@@ -25,26 +25,10 @@
  * Flash Screen Video decoder
  * @author Alex Beregszaszi
  * @author Benjamin Larsson
- */
-
-/* Bitstream description
- * The picture is divided into blocks that are zlib compressed.
- *
- * The decoder is fed complete frames, the frameheader contains:
- * 4bits of block width
- * 12bits of frame width
- * 4bits of block height
- * 12bits of frame height
  *
- * Directly after the header are the compressed blocks. The blocks
- * have their compressed size represented with 16bits in the beginnig.
- * If the size = 0 then the block is unchanged from the previous frame.
- * All blocks are decompressed until the buffer is consumed.
- *
- * Encoding ideas, a basic encoder would just use a fixed block size.
- * Block sizes can be multipels of 16, from 16 to 256. The blocks don't
- * have to be quadratic. A brute force search with a set of diffrent
- * block sizes should give a better result then to just use a fixed size.
+ * A description of the bitstream format for Flash Screen Video version 1/2
+ * is part of the SWF File Format Specification (version 10), which can be
+ * downloaded from http://www.adobe.com/devnet/swf.html.
  */
 
 #include <stdio.h>
@@ -71,7 +55,7 @@ static void copy_region(uint8_t *sptr, uint8_t *dptr,
     int i;
 
     for (i = dx + h; i > dx; i--) {
-        memcpy(dptr + (i * stride) + dy * 3, sptr, w * 3);
+        memcpy(dptr + i * stride + dy * 3, sptr, w * 3);
         sptr += w * 3;
     }
 }
@@ -86,7 +70,7 @@ static av_cold int flashsv_decode_init(AVCodecContext *avctx)
     s->zstream.zalloc = Z_NULL;
     s->zstream.zfree  = Z_NULL;
     s->zstream.opaque = Z_NULL;
-    zret = inflateInit(&(s->zstream));
+    zret = inflateInit(&s->zstream);
     if (zret != Z_OK) {
         av_log(avctx, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
         return 1;
@@ -102,7 +86,6 @@ static av_cold int flashsv_decode_init(AVCodecContext *avctx)
 static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
                                 int *data_size, AVPacket *avpkt)
 {
-    const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
     FlashSVContext *s  = avctx->priv_data;
     int h_blocks, v_blocks, h_part, v_part, i, j;
@@ -114,7 +97,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
     if (buf_size < 4)
         return -1;
 
-    init_get_bits(&gb, buf, buf_size * 8);
+    init_get_bits(&gb, avpkt->data, buf_size * 8);
 
     /* start to parse the bitstream */
     s->block_width  = 16 * (get_bits(&gb,  4) + 1);
@@ -122,7 +105,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
     s->block_height = 16 * (get_bits(&gb,  4) + 1);
     s->image_height =       get_bits(&gb, 12);
 
-    /* calculate amount of blocks and the size of the border blocks */
+    /* calculate number of blocks and size of border (partial) blocks */
     h_blocks = s->image_width  / s->block_width;
     h_part   = s->image_width  % s->block_width;
     v_blocks = s->image_height / s->block_height;
@@ -139,26 +122,29 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
     }
     s->block_size = s->block_width * s->block_height;
 
-    /* init the image size once */
-    if ((avctx->width == 0) && (avctx->height == 0)) {
+    /* initialize the image size once */
+    if (avctx->width == 0 && avctx->height == 0) {
         avctx->width  = s->image_width;
         avctx->height = s->image_height;
     }
 
     /* check for changes of image width and image height */
-    if ((avctx->width != s->image_width) || (avctx->height != s->image_height)) {
-        av_log(avctx, AV_LOG_ERROR, "Frame width or height differs from first frames!\n");
-        av_log(avctx, AV_LOG_ERROR, "fh = %d, fv %d  vs  ch = %d, cv = %d\n", avctx->height,
-        avctx->width, s->image_height, s->image_width);
-        return -1;
+    if (avctx->width != s->image_width || avctx->height != s->image_height) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Frame width or height differs from first frames!\n");
+        av_log(avctx, AV_LOG_ERROR, "fh = %d, fv %d  vs  ch = %d, cv = %d\n",
+               avctx->height, avctx->width, s->image_height, s->image_width);
+        return AVERROR_INVALIDDATA;
     }
 
-    av_log(avctx, AV_LOG_DEBUG, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n",
-           s->image_width, s->image_height, s->block_width, s->block_height,
-           h_blocks, v_blocks, h_part, v_part);
+    av_dlog(avctx, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n",
+            s->image_width, s->image_height, s->block_width, s->block_height,
+            h_blocks, v_blocks, h_part, v_part);
 
-    s->frame.reference    = 1;
-    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
+    s->frame.reference    = 3;
+    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID    |
+                            FF_BUFFER_HINTS_PRESERVE |
+                            FF_BUFFER_HINTS_REUSABLE;
     if (avctx->reget_buffer(avctx, &s->frame) < 0) {
         av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
         return -1;
@@ -167,48 +153,50 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
     /* loop over all block columns */
     for (j = 0; j < v_blocks + (v_part ? 1 : 0); j++) {
 
-        int hp = j * s->block_height; // horiz position in frame
-        int hs = (j < v_blocks) ? s->block_height : v_part; // size of block
+        int hp = j * s->block_height; // vertical position in frame
+        int hs = (j < v_blocks) ? s->block_height : v_part; // block size
 
 
         /* loop over all block rows */
         for (i = 0; i < h_blocks + (h_part ? 1 : 0); i++) {
-            int wp = i * s->block_width; // vert position in frame
-            int ws = (i < h_blocks) ? s->block_width : h_part; // size of block
+            int wp = i * s->block_width; // horizontal position in frame
+            int ws = (i < h_blocks) ? s->block_width : h_part; // block size
 
             /* get the size of the compressed zlib chunk */
             int size = get_bits(&gb, 16);
             if (8 * size > get_bits_left(&gb)) {
                 avctx->release_buffer(avctx, &s->frame);
                 s->frame.data[0] = NULL;
-                return -1;
+                return AVERROR_INVALIDDATA;
             }
 
-            if (size == 0) {
-                /* no change, don't do anything */
-            } else {
+            /* skip unchanged blocks, which have size 0 */
+            if (size) {
                 /* decompress block */
-                int ret = inflateReset(&(s->zstream));
+                int ret = inflateReset(&s->zstream);
                 if (ret != Z_OK) {
-                    av_log(avctx, AV_LOG_ERROR, "error in decompression (reset) of block %dx%d\n", i, j);
+                    av_log(avctx, AV_LOG_ERROR,
+                           "error in decompression (reset) of block %dx%d\n", i, j);
                     /* return -1; */
                 }
-                s->zstream.next_in   = buf + (get_bits_count(&gb) / 8);
+                s->zstream.next_in   = avpkt->data + get_bits_count(&gb) / 8;
                 s->zstream.avail_in  = size;
                 s->zstream.next_out  = s->tmpblock;
                 s->zstream.avail_out = s->block_size * 3;
-                ret = inflate(&(s->zstream), Z_FINISH);
+                ret = inflate(&s->zstream, Z_FINISH);
                 if (ret == Z_DATA_ERROR) {
                     av_log(avctx, AV_LOG_ERROR, "Zlib resync occurred\n");
-                    inflateSync(&(s->zstream));
-                    ret = inflate(&(s->zstream), Z_FINISH);
+                    inflateSync(&s->zstream);
+                    ret = inflate(&s->zstream, Z_FINISH);
                 }
 
-                if ((ret != Z_OK) && (ret != Z_STREAM_END)) {
-                    av_log(avctx, AV_LOG_ERROR, "error in decompression of block %dx%d: %d\n", i, j, ret);
+                if (ret != Z_OK && ret != Z_STREAM_END) {
+                    av_log(avctx, AV_LOG_ERROR,
+                           "error in decompression of block %dx%d: %d\n", i, j, ret);
                     /* return -1; */
                 }
-                copy_region(s->tmpblock, s->frame.data[0], s->image_height - (hp + hs + 1),
+                copy_region(s->tmpblock, s->frame.data[0],
+                            s->image_height - (hp + hs + 1),
                             wp, hs, ws, s->frame.linesize[0]);
                 skip_bits_long(&gb, 8 * size);   /* skip the consumed bits */
             }
@@ -230,7 +218,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
 static av_cold int flashsv_decode_end(AVCodecContext *avctx)
 {
     FlashSVContext *s = avctx->priv_data;
-    inflateEnd(&(s->zstream));
+    inflateEnd(&s->zstream);
     /* release the frame if needed */
     if (s->frame.data[0])
         avctx->release_buffer(avctx, &s->frame);
diff --git a/libavcodec/h264_loopfilter.c b/libavcodec/h264_loopfilter.c
index c51ada287a..74c7dae523 100644
--- a/libavcodec/h264_loopfilter.c
+++ b/libavcodec/h264_loopfilter.c
@@ -100,7 +100,7 @@ static const uint8_t tc0_table[52*3][4] = {
     {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
 };
 
-static void av_always_inline filter_mb_edgev( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h) {
+static void av_always_inline filter_mb_edgev( uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, H264Context *h) {
     const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;
     const int alpha = alpha_table[index_a];
@@ -118,7 +118,7 @@ static void av_always_inline filter_mb_edgev( uint8_t *pix, int stride, int16_t
         h->h264dsp.h264_h_loop_filter_luma_intra(pix, stride, alpha, beta);
     }
 }
-static void av_always_inline filter_mb_edgecv( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
+static void av_always_inline filter_mb_edgecv( uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, H264Context *h ) {
     const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;
     const int alpha = alpha_table[index_a];
@@ -137,7 +137,7 @@ static void av_always_inline filter_mb_edgecv( uint8_t *pix, int stride, int16_t
     }
 }
 
-static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[7], int bsi, int qp ) {
+static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, const int16_t bS[7], int bsi, int qp ) {
     const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
     int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;
     int alpha = alpha_table[index_a];
@@ -155,7 +155,7 @@ static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int
         h->h264dsp.h264_h_loop_filter_luma_mbaff_intra(pix, stride, alpha, beta);
     }
 }
-static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[7], int bsi, int qp ) {
+static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, const int16_t bS[7], int bsi, int qp ) {
     const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
     int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;
     int alpha = alpha_table[index_a];
@@ -174,7 +174,7 @@ static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, in
     }
 }
 
-static void av_always_inline filter_mb_edgeh( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
+static void av_always_inline filter_mb_edgeh( uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, H264Context *h ) {
     const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;
     const int alpha = alpha_table[index_a];
@@ -193,7 +193,7 @@ static void av_always_inline filter_mb_edgeh( uint8_t *pix, int stride, int16_t
     }
 }
 
-static void av_always_inline filter_mb_edgech( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
+static void av_always_inline filter_mb_edgech( uint8_t *pix, int stride, const int16_t bS[4], unsigned int qp, H264Context *h ) {
     const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8);
     const unsigned int index_a = qp - qp_bd_offset + h->slice_alpha_c0_offset;
     const int alpha = alpha_table[index_a];
@@ -247,9 +247,9 @@ void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y,
         return;
 
     if( IS_INTRA(mb_type) ) {
-        int16_t bS4[4] = {4,4,4,4};
-        int16_t bS3[4] = {3,3,3,3};
-        int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
+        static const int16_t bS4[4] = {4,4,4,4};
+        static const int16_t bS3[4] = {3,3,3,3};
+        const int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
         if(left_type)
             filter_mb_edgev( &img_y[4*0], linesize, bS4, qp0, h);
         if( IS_8x8DCT(mb_type) ) {
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 6b0cd4917b..f8eb7f7c9d 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -528,12 +528,14 @@ typedef struct AVStream {
     int stream_copy; /**< If set, just copy stream. */
     enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed.
 
+#if FF_API_AVSTREAM_QUALITY
     //FIXME move stuff to a flags field?
     /**
      * Quality, as it has been removed from AVCodecContext and put in AVVideoFrame.
      * MN: dunno if that is the right place for it
      */
-    float quality;
+    attribute_deprecated float quality;
+#endif
 
     /**
      * Decoding: pts of the first frame of the stream, in stream time base.
diff --git a/libavformat/bink.c b/libavformat/bink.c
index eed52cdb49..34c1a9944f 100644
--- a/libavformat/bink.c
+++ b/libavformat/bink.c
@@ -134,15 +134,18 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
             if (!ast)
                 return AVERROR(ENOMEM);
             ast->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
+            ast->codec->codec_tag   = 0;
             ast->codec->sample_rate = avio_rl16(pb);
             av_set_pts_info(ast, 64, 1, ast->codec->sample_rate);
             flags = avio_rl16(pb);
             ast->codec->codec_id = flags & BINK_AUD_USEDCT ?
                                    CODEC_ID_BINKAUDIO_DCT : CODEC_ID_BINKAUDIO_RDFT;
             ast->codec->channels = flags & BINK_AUD_STEREO ? 2 : 1;
-            ast->codec->extradata  = av_mallocz(1 + FF_INPUT_BUFFER_PADDING_SIZE);
-            ast->codec->extradata_size = 1;
-            ast->codec->extradata[0] = vst->codec->codec_tag == MKTAG('B','I','K','b');
+            ast->codec->extradata = av_mallocz(4 + FF_INPUT_BUFFER_PADDING_SIZE);
+            if (!ast->codec->extradata)
+                return AVERROR(ENOMEM);
+            ast->codec->extradata_size = 4;
+            AV_WL32(ast->codec->extradata, vst->codec->codec_tag);
         }
 
         for (i = 0; i < bink->num_audio_tracks; i++)
diff --git a/libavformat/ffmdec.c b/libavformat/ffmdec.c
index f0832659d5..d4821da47f 100644
--- a/libavformat/ffmdec.c
+++ b/libavformat/ffmdec.c
@@ -301,7 +301,6 @@ static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
         codec->codec_id = avio_rb32(pb);
         codec->codec_type = avio_r8(pb); /* codec_type */
         codec->bit_rate = avio_rb32(pb);
-        st->quality = avio_rb32(pb);
         codec->flags = avio_rb32(pb);
         codec->flags2 = avio_rb32(pb);
         codec->debug = avio_rb32(pb);
diff --git a/libavformat/ffmenc.c b/libavformat/ffmenc.c
index b3285b5c63..595ba88223 100644
--- a/libavformat/ffmenc.c
+++ b/libavformat/ffmenc.c
@@ -114,7 +114,6 @@ static int ffm_write_header(AVFormatContext *s)
         avio_wb32(pb, codec->codec_id);
         avio_w8(pb, codec->codec_type);
         avio_wb32(pb, codec->bit_rate);
-        avio_wb32(pb, st->quality);
         avio_wb32(pb, codec->flags);
         avio_wb32(pb, codec->flags2);
         avio_wb32(pb, codec->debug);
diff --git a/libavformat/version.h b/libavformat/version.h
index d358285e3c..9aaf395170 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -77,5 +77,8 @@
 #ifndef FF_API_FLAG_RTP_HINT
 #define FF_API_FLAG_RTP_HINT           (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_AVSTREAM_QUALITY
+#define FF_API_AVSTREAM_QUALITY        (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
 
 #endif /* AVFORMAT_VERSION_H */
diff --git a/libavutil/eval.c b/libavutil/eval.c
index 3833ca87f2..4e2cb1095c 100644
--- a/libavutil/eval.c
+++ b/libavutil/eval.c
@@ -500,6 +500,7 @@ int av_expr_parse(AVExpr **expr, const char *s,
     if ((ret = parse_expr(&e, &p)) < 0)
         goto end;
     if (*p.s) {
+        av_expr_free(e);
         av_log(&p, AV_LOG_ERROR, "Invalid chars '%s' at the end of expression '%s'\n", p.s, s0);
         ret = AVERROR(EINVAL);
         goto end;
@@ -601,7 +602,7 @@ int main(int argc, char **argv)
         "-PI",
         "+PI",
         "1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)",
-        "80G/80Gi"
+        "80G/80Gi",
         "1k",
         "1Gi",
         "1gi",
diff --git a/libpostproc/postprocess.c b/libpostproc/postprocess.c
index 589c2cead6..944d581a0f 100644
--- a/libpostproc/postprocess.c
+++ b/libpostproc/postprocess.c
@@ -246,7 +246,6 @@ static inline int isVertDC_C(uint8_t src[], int stride, PPContext *c)
 static inline int isHorizMinMaxOk_C(uint8_t src[], int stride, int QP)
 {
     int i;
-#if 1
     for(i=0; i<2; i++){
         if((unsigned)(src[0] - src[5] + 2*QP) > 4*QP) return 0;
         src += stride;
@@ -257,19 +256,11 @@ static inline int isHorizMinMaxOk_C(uint8_t src[], int stride, int QP)
         if((unsigned)(src[6] - src[3] + 2*QP) > 4*QP) return 0;
         src += stride;
     }
-#else
-    for(i=0; i<8; i++){
-        if((unsigned)(src[0] - src[7] + 2*QP) > 4*QP) return 0;
-        src += stride;
-    }
-#endif
     return 1;
 }
 
 static inline int isVertMinMaxOk_C(uint8_t src[], int stride, int QP)
 {
-#if 1
-#if 1
     int x;
     src+= stride*4;
     for(x=0; x<BLOCK_SIZE; x+=4){
@@ -278,30 +269,7 @@ static inline int isVertMinMaxOk_C(uint8_t src[], int stride, int QP)
         if((unsigned)(src[2+x + 4*stride] - src[2+x + 1*stride] + 2*QP) > 4*QP) return 0;
         if((unsigned)(src[3+x + 6*stride] - src[3+x + 3*stride] + 2*QP) > 4*QP) return 0;
     }
-#else
-    int x;
-    src+= stride*3;
-    for(x=0; x<BLOCK_SIZE; x++){
-        if((unsigned)(src[x + stride] - src[x + (stride<<3)] + 2*QP) > 4*QP) return 0;
-    }
-#endif
-    return 1;
-#else
-    int x;
-    src+= stride*4;
-    for(x=0; x<BLOCK_SIZE; x++){
-        int min=255;
-        int max=0;
-        int y;
-        for(y=0; y<8; y++){
-            int v= src[x + y*stride];
-            if(v>max) max=v;
-            if(v<min) min=v;
-        }
-        if(max-min > 2*QP) return 0;
-    }
     return 1;
-#endif
 }
 
 static inline int horizClassify_C(uint8_t src[], int stride, PPContext *c)
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 86ab4becb5..73dc25d547 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -435,7 +435,10 @@ typedef struct SwsContext {
      * @param dstW       width of destination image
      * @param src        pointer to source data to be scaled. If scaling depth
      *                   is 8, this is 8bpp in 8bpp (uint8_t) width. If scaling
-     *                   depth is 16, this is 16bpp in 16bpp (uint16_t) depth.
+     *                   depth is 16, this is native depth in 16bbp (uint16_t)
+     *                   width. In other words, for 9-bit YUV input, this is
+     *                   9bpp, for 10-bit YUV input, this is 10bpp, and for
+     *                   16-bit RGB or YUV, this is 16bpp.
      * @param filter     filter coefficients to be used per output pixel for
      *                   scaling. This contains 14bpp filtering coefficients.
      *                   Guaranteed to contain dstW * filterSize entries.
diff --git a/tests/ref/fate/eval b/tests/ref/fate/eval
index 7042a017fd..3bc35db633 100644
--- a/tests/ref/fate/eval
+++ b/tests/ref/fate/eval
@@ -16,8 +16,11 @@ Evaluating '+PI'
 Evaluating '1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)'
 '1+(5-2)^(3-1)+1/2+sin(PI)-max(-2.2,-3.1)' -> 12.700000
 
-Evaluating '80G/80Gi1k'
-'80G/80Gi1k' -> nan
+Evaluating '80G/80Gi'
+'80G/80Gi' -> 0.931323
+
+Evaluating '1k'
+'1k' -> 1000.000000
 
 Evaluating '1Gi'
 '1Gi' -> 1073741824.000000
diff --git a/tests/ref/lavf/ffm b/tests/ref/lavf/ffm
index b89af6e3e5..b20e132b45 100644
--- a/tests/ref/lavf/ffm
+++ b/tests/ref/lavf/ffm
@@ -1,3 +1,3 @@
-b6acf782a38d313153b68c4ca204fc90 *./tests/data/lavf/lavf.ffm
+f9bee27ea1b6b83a06b5f9efb0a4ac1f *./tests/data/lavf/lavf.ffm
 376832 ./tests/data/lavf/lavf.ffm
 ./tests/data/lavf/lavf.ffm CRC=0xf361ed74