doc: avoid incorrect phrase 'allows to'

Also fix typo found by Lou Logan:
Sacrifying -> Sacrificing

Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit 28efeb6502df37c99ccf18575d2552381d83a877)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Changelog

@@ -3,6 +3,27 @@ releases are sorted from youngest to oldest.
 
 version <next>:
 
+version 2.7.1:
+- postproc: fix unaligned access
+- avformat: clarify what package needs to be compiled with SSL support
+- avcodec/libx264: Avoid reconfig on equivalent aspect ratios
+- avcodec/flacenc: Fix Invalid Rice order
+- tls_gnutls: fix hang on disconnection
+- avcodec/hevc_ps: Only discard overread VPS if a previous is available
+- ffmpeg: Free last_frame instead of just unref
+- avcodec/ffv1enc: fix bps for >8bit yuv when not explicitly set
+- avio: fix potential crashes when combining ffio_ensure_seekback + crc
+- examples/demuxing_decoding: use properties from frame instead of video_dec_ctx
+- h264: er: Copy from the previous reference only if compatible
+- doc: fix spelling errors
+- configure: only disable VSX for !ppc64el
+- ffmpeg_opt: Check for localtime() failure
+- avformat/singlejpeg: fix standalone compilation
+- configure: Disable VSX on unspecified / generic CPUs
+- avformat: Fix bug in parse_rps for HEVC.
+- takdec: ensure chan2 is a valid channel index
+- avcodec/h264_slice: Use AVFrame dimensions for grayscale handling
+
 
 version 2.7:
 - FFT video filter
@@ -573,7 +594,7 @@ easier to use. The changes are:
           all the stream in the first input file, except for the second audio
           stream'.
     * There is a new option -c (or -codec) for choosing the decoder/encoder to
-      use, which allows to precisely specify target stream(s) consistently with
+      use, which makes it possible to precisely specify target stream(s) consistently with
       other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
       libvorbis sets the codec for the first audio stream and -c copy copies all
       the streams without reencoding. Old -vcodec/-acodec/-scodec options are now

MAINTAINERS

@@ -545,6 +545,7 @@ x86                                     Michael Niedermayer
 Releases
 ========
 
+2.7                                     Michael Niedermayer
 2.6                                     Michael Niedermayer
 2.5                                     Michael Niedermayer
 2.4                                     Michael Niedermayer

RELEASE

@@ -1 +1 @@
-2.6.git
+2.7.1

RELEASE_NOTES

@@ -0,0 +1,15 @@
+
+              ┌─────────────────────────────────────┐
+              │ RELEASE NOTES for FFmpeg 2.7 "Nash" │
+              └─────────────────────────────────────┘
+
+   The FFmpeg Project proudly presents FFmpeg 2.7 "Nash", about 3
+   months after the release of FFmpeg 2.6.
+
+   A complete Changelog is available at the root of the project, and the
+   complete Git history on http://source.ffmpeg.org.
+
+   We hope you will like this release as much as we enjoyed working on it, and
+   as usual, if you have any questions about it, or any FFmpeg related topic,
+   feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net) or ask
+   on the mailing-lists.

configure

@@ -4607,6 +4607,9 @@ unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
 EOF
 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
 
+if ! enabled ppc64 || enabled bigendian; then
+    disable vsx
+fi
 
 check_gas() {
     log "check_gas using '$as' as AS"
@@ -5236,8 +5239,8 @@ disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreF
     enable securetransport; }
 
 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
-enabled makeinfo && (makeinfo --version | \
+enabled makeinfo \
-                     grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
+    && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
     && enable makeinfo_html || disable makeinfo_html
 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
 perl -v            > /dev/null 2>&1 && enable perl      || disable perl

doc/Doxyfile

@@ -31,7 +31,7 @@ PROJECT_NAME           = FFmpeg
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         =
+PROJECT_NUMBER         = 2.7.1
 
 # With the PROJECT_LOGO tag one can specify a logo or icon that is included
 # in the documentation. The maximum height of the logo should not exceed 55

doc/decoders.texi

@@ -95,7 +95,7 @@ This decoder aims to implement the complete FLAC specification from Xiph.
 
 @item -use_buggy_lpc
 The lavc FLAC encoder used to produce buggy streams with high lpc values
-(like the default value). This option allows to decode such streams
+(like the default value). This option makes it possible to decode such streams
 correctly by using lavc's old buggy lpc logic for decoding.
 
 @end table

doc/examples/demuxing_decoding.c

@@ -81,22 +81,24 @@ static int decode_packet(int *got_frame, int cached)
             fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
             return ret;
         }
-        if (video_dec_ctx->width != width || video_dec_ctx->height != height ||
-            video_dec_ctx->pix_fmt != pix_fmt) {
-            /* To handle this change, one could call av_image_alloc again and
-             * decode the following frames into another rawvideo file. */
-            fprintf(stderr, "Error: Width, height and pixel format have to be "
-                    "constant in a rawvideo file, but the width, height or "
-                    "pixel format of the input video changed:\n"
-                    "old: width = %d, height = %d, format = %s\n"
-                    "new: width = %d, height = %d, format = %s\n",
-                    width, height, av_get_pix_fmt_name(pix_fmt),
-                    video_dec_ctx->width, video_dec_ctx->height,
-                    av_get_pix_fmt_name(video_dec_ctx->pix_fmt));
-            return -1;
-        }
 
         if (*got_frame) {
+
+            if (frame->width != width || frame->height != height ||
+                frame->format != pix_fmt) {
+                /* To handle this change, one could call av_image_alloc again and
+                 * decode the following frames into another rawvideo file. */
+                fprintf(stderr, "Error: Width, height and pixel format have to be "
+                        "constant in a rawvideo file, but the width, height or "
+                        "pixel format of the input video changed:\n"
+                        "old: width = %d, height = %d, format = %s\n"
+                        "new: width = %d, height = %d, format = %s\n",
+                        width, height, av_get_pix_fmt_name(pix_fmt),
+                        frame->width, frame->height,
+                        av_get_pix_fmt_name(frame->format));
+                return -1;
+            }
+
             printf("video_frame%s n:%d coded_n:%d pts:%s\n",
                    cached ? "(cached)" : "",
                    video_frame_count++, frame->coded_picture_number,

doc/examples/transcoding.c

@@ -117,7 +117,7 @@ static int open_output_file(const char *filename)
             /* in this example, we choose transcoding to same codec */
             encoder = avcodec_find_encoder(dec_ctx->codec_id);
             if (!encoder) {
-                av_log(NULL, AV_LOG_FATAL, "Neccessary encoder not found\n");
+                av_log(NULL, AV_LOG_FATAL, "Necessary encoder not found\n");
                 return AVERROR_INVALIDDATA;
             }
 

ffmpeg.c

@@ -1178,6 +1178,8 @@ static void do_video_out(AVFormatContext *s,
     av_frame_unref(ost->last_frame);
     if (next_picture)
         av_frame_ref(ost->last_frame, next_picture);
+    else
+        av_frame_free(&ost->last_frame);
 }
 
 static double psnr(double d)

ffmpeg_opt.c

@@ -2438,6 +2438,9 @@ static int opt_vstats(void *optctx, const char *opt, const char *arg)
     time_t today2 = time(NULL);
     struct tm *today = localtime(&today2);
 
+    if (!today)
+        return AVERROR(errno);
+
     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
              today->tm_sec);
     return opt_vstats_file(NULL, opt, filename);

libavcodec/ass_split.h

@@ -103,7 +103,7 @@ typedef struct ASSSplitContext ASSSplitContext;
  * Split a full ASS file or a ASS header from a string buffer and store
  * the split structure in a newly allocated context.
  *
- * @param buf String containing the ASS formated data.
+ * @param buf String containing the ASS formatted data.
  * @return Newly allocated struct containing split data.
  */
 ASSSplitContext *ff_ass_split(const char *buf);

libavcodec/bitstream.c

@@ -247,7 +247,7 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
 
 /* Build VLC decoding tables suitable for use with get_vlc().
 
-   'nb_bits' set thee decoding table size (2^nb_bits) entries. The
+   'nb_bits' set the decoding table size (2^nb_bits) entries. The
    bigger it is, the faster is the decoding. But it should not be too
    big to save memory and L1 cache. '9' is a good compromise.
 
@@ -265,7 +265,7 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
    'xxx_size' : gives the number of bytes of each entry of the 'bits'
    or 'codes' tables.
 
-   'wrap' and 'size' allows to use any memory configuration and types
+   'wrap' and 'size' make it possible to use any memory configuration and types
    (byte/word/long) to store the 'bits', 'codes', and 'symbols' tables.
 
    'use_static' should be set to 1 for tables, which should be freed

libavcodec/dpxenc.c

@@ -75,17 +75,20 @@ static av_cold int encode_init(AVCodecContext *avctx)
     return 0;
 }
 
-#define write16(p, value) \
+static av_always_inline void write16_internal(int big_endian, void *p, int value)
-do { \
+{
-    if (s->big_endian) AV_WB16(p, value); \
+    if (big_endian) AV_WB16(p, value);
-    else               AV_WL16(p, value); \
+    else            AV_WL16(p, value);
-} while(0)
+}
 
-#define write32(p, value) \
+static av_always_inline void write32_internal(int big_endian, void *p, int value)
-do { \
+{
-    if (s->big_endian) AV_WB32(p, value); \
+    if (big_endian) AV_WB32(p, value);
-    else               AV_WL32(p, value); \
+    else            AV_WL32(p, value);
-} while(0)
+}
+
+#define write16(p, value) write16_internal(s->big_endian, p, value)
+#define write32(p, value) write32_internal(s->big_endian, p, value)
 
 static void encode_rgb48_10bit(AVCodecContext *avctx, const AVPicture *pic, uint8_t *dst)
 {

libavcodec/ffv1enc.c

@@ -753,7 +753,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
         s->chroma_planes = desc->nb_components < 3 ? 0 : 1;
         s->colorspace = 0;
         s->transparency = desc->nb_components == 4;
-        if (!avctx->bits_per_raw_sample)
+        if (!avctx->bits_per_raw_sample && !s->bits_per_raw_sample)
             s->bits_per_raw_sample = 8;
         break;
     case AV_PIX_FMT_RGB32:

libavcodec/flacenc.c

@@ -705,7 +705,7 @@ static uint64_t calc_rice_params(RiceContext *rc,
     bits[pmin] = UINT32_MAX;
     for (i = pmax; ; ) {
         bits[i] = calc_optimal_rice_params(&tmp_rc, i, sums, n, pred_order, kmax, exact);
-        if (bits[i] < bits[opt_porder]) {
+        if (bits[i] < bits[opt_porder] || pmax == pmin) {
             opt_porder = i;
             *rc = tmp_rc;
         }

libavcodec/h264_slice.c

@@ -251,11 +251,11 @@ static int alloc_picture(H264Context *h, H264Picture *pic)
         av_pix_fmt_get_chroma_sub_sample(pic->f->format,
                                          &h_chroma_shift, &v_chroma_shift);
 
-        for(i=0; i<FF_CEIL_RSHIFT(h->avctx->height, v_chroma_shift); i++) {
+        for(i=0; i<FF_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
             memset(pic->f->data[1] + pic->f->linesize[1]*i,
-                   0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift));
+                   0x80, FF_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
             memset(pic->f->data[2] + pic->f->linesize[2]*i,
-                   0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift));
+                   0x80, FF_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
         }
     }
 
@@ -1549,12 +1549,15 @@ int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl)
              * vectors.  Given we are concealing a lost frame, this probably
              * is not noticeable by comparison, but it should be fixed. */
             if (h->short_ref_count) {
-                if (prev) {
+                if (prev &&
+                    h->short_ref[0]->f->width == prev->f->width &&
+                    h->short_ref[0]->f->height == prev->f->height &&
+                    h->short_ref[0]->f->format == prev->f->format) {
                     av_image_copy(h->short_ref[0]->f->data,
                                   h->short_ref[0]->f->linesize,
                                   (const uint8_t **)prev->f->data,
                                   prev->f->linesize,
-                                  h->avctx->pix_fmt,
+                                  prev->f->format,
                                   h->mb_width  * 16,
                                   h->mb_height * 16);
                     h->short_ref[0]->poc = prev->poc + 2;

libavcodec/hevc_ps.c

@@ -499,7 +499,8 @@ int ff_hevc_decode_nal_vps(HEVCContext *s)
     if (get_bits_left(gb) < 0) {
         av_log(s->avctx, AV_LOG_ERROR,
                "Overread VPS by %d bits\n", -get_bits_left(gb));
-        goto err;
+        if (s->vps_list[vps_id])
+            goto err;
     }
 
     if (s->vps_list[vps_id] &&

libavcodec/libspeexenc.c

@@ -76,7 +76,7 @@
  *     encodes them with just enough bits to reproduce the background noise.
  *
  * Discontinuous Transmission (DTX)
- *     DTX is an addition to VAD/VBR operation, that allows to stop transmitting
+ *     DTX is an addition to VAD/VBR operation, that makes it possible to stop transmitting
  *     completely when the background noise is stationary.
  *     In file-based operation only 5 bits are used for such frames.
  */

libavcodec/libx264.c

@@ -191,8 +191,7 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
             x4->params.b_tff = frame->top_field_first;
             x264_encoder_reconfig(x4->enc, &x4->params);
         }
-        if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den ||
+        if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
-            x4->params.vui.i_sar_width  != ctx->sample_aspect_ratio.num) {
             x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
             x4->params.vui.i_sar_width  = ctx->sample_aspect_ratio.num;
             x264_encoder_reconfig(x4->enc, &x4->params);

libavcodec/ppc/me_cmp.c

@@ -504,7 +504,7 @@ static int hadamard8_diff8x8_altivec(MpegEncContext *s, uint8_t *dst,
 }
 
 /*
- * 16x8 works with 16 elements; it allows to avoid replicating loads, and
+ * 16x8 works with 16 elements; it can avoid replicating loads, and
  * gives the compiler more room for scheduling. It's only used from
  * inside hadamard8_diff16_altivec.
  *

libavcodec/takdec.c

@@ -801,6 +801,12 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
                     if (s->mcdparams[i].present) {
                         s->mcdparams[i].index = get_bits(gb, 2);
                         s->mcdparams[i].chan2 = get_bits(gb, 4);
+                        if (s->mcdparams[i].chan2 >= avctx->channels) {
+                            av_log(avctx, AV_LOG_ERROR,
+                                   "invalid channel 2 (%d) for %d channel(s)\n",
+                                   s->mcdparams[i].chan2, avctx->channels);
+                            return AVERROR_INVALIDDATA;
+                        }
                         if (s->mcdparams[i].index == 1) {
                             if ((nbit == s->mcdparams[i].chan2) ||
                                 (ch_mask & 1 << s->mcdparams[i].chan2))

libavcodec/vp9.c

@@ -3286,7 +3286,7 @@ static void decode_b(AVCodecContext *ctx, int row, int col,
     }
 
     // emulated overhangs if the stride of the target buffer can't hold. This
-    // allows to support emu-edge and so on even if we have large block
+    // makes it possible to support emu-edge and so on even if we have large block
     // overhangs
     emu[0] = (col + w4) * 8 > f->linesize[0] ||
              (row + h4) > s->rows;
@@ -3988,7 +3988,8 @@ static int vp9_decode_frame(AVCodecContext *ctx, void *frame,
     int size = pkt->size;
     VP9Context *s = ctx->priv_data;
     int res, tile_row, tile_col, i, ref, row, col;
-    int retain_segmap_ref = s->segmentation.enabled && !s->segmentation.update_map;
+    int retain_segmap_ref = s->segmentation.enabled && !s->segmentation.update_map
+                            && s->frames[REF_FRAME_SEGMAP].segmentation_map;
     ptrdiff_t yoff, uvoff, ls_y, ls_uv;
     AVFrame *f;
     int bytesperpixel;

libavcodec/x86/vc1dsp_mmx.c

@@ -80,7 +80,7 @@
     "movq      %%mm"#R1", "#OFF"(%1)   \n\t"    \
     "add       %2, %0                  \n\t"
 
-/** Sacrifying mm6 allows to pipeline loads from src */
+/** Sacrificing mm6 makes it possible to pipeline loads from src */
 static void vc1_put_ver_16b_shift2_mmx(int16_t *dst,
                                        const uint8_t *src, x86_reg stride,
                                        int rnd, int64_t shift)

libavdevice/alsa_dec.c

@@ -27,7 +27,7 @@
  * @author Benoit Fouet ( benoit fouet free fr )
  * @author Nicolas George ( nicolas george normalesup org )
  *
- * This avdevice decoder allows to capture audio from an ALSA (Advanced
+ * This avdevice decoder can capture audio from an ALSA (Advanced
  * Linux Sound Architecture) device.
  *
  * The filename parameter is the name of an ALSA PCM device capable of

libavdevice/alsa_enc.c

@@ -26,7 +26,7 @@
  * @author Luca Abeni ( lucabe72 email it )
  * @author Benoit Fouet ( benoit fouet free fr )
  *
- * This avdevice encoder allows to play audio to an ALSA (Advanced Linux
+ * This avdevice encoder can play audio to an ALSA (Advanced Linux
  * Sound Architecture) device.
  *
  * The filename parameter is the name of an ALSA PCM device capable of

libavdevice/avdevice.h

@@ -324,7 +324,7 @@ int avdevice_dev_to_app_control_message(struct AVFormatContext *s,
  * Following API allows user to probe device capabilities (supported codecs,
  * pixel formats, sample formats, resolutions, channel counts, etc).
  * It is build on top op AVOption API.
- * Queried capabilities allows to set up converters of video or audio
+ * Queried capabilities make it possible to set up converters of video or audio
  * parameters that fit to the device.
  *
  * List of capabilities that can be queried:

libavdevice/lavfi.c

@@ -411,7 +411,7 @@ static int lavfi_read_packet(AVFormatContext *avctx, AVPacket *pkt)
             continue;
         } else if (ret < 0)
             return ret;
-        d = av_rescale_q(frame->pts, tb, AV_TIME_BASE_Q);
+        d = av_rescale_q_rnd(frame->pts, tb, AV_TIME_BASE_Q, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
         av_dlog(avctx, "sink_idx:%d time:%f\n", i, d);
         av_frame_unref(frame);
 

libavformat/avformat.h

@@ -67,7 +67,7 @@
  * with an AVFMT_NOFILE format).
  *
  * @section lavf_options Passing options to (de)muxers
- * Lavf allows to configure muxers and demuxers using the @ref avoptions
+ * It is possible to configure lavf muxers and demuxers using the @ref avoptions
  * mechanism. Generic (format-independent) libavformat options are provided by
  * AVFormatContext, they can be examined from a user program by calling
  * av_opt_next() / av_opt_find() on an allocated AVFormatContext (or its AVClass
@@ -234,7 +234,7 @@
  * @defgroup lavf_io I/O Read/Write
  * @{
  * @section lavf_io_dirlist Directory listing
- * The directory listing API allows to list files on remote servers.
+ * The directory listing API makes it possible to list files on remote servers.
  *
  * Some of possible use cases:
  * - an "open file" dialog to choose files from a remote location,
@@ -2361,7 +2361,7 @@ int av_write_uncoded_frame(AVFormatContext *s, int stream_index,
 /**
  * Write a uncoded frame to an output media file.
  *
- * If the muxer supports it, this function allows to write an AVFrame
+ * If the muxer supports it, this function makes it possible to write an AVFrame
  * structure directly, without encoding it into a packet.
  * It is mostly useful for devices and similar special muxers that use raw
  * video or PCM data and will not serialize it into a byte stream.

libavformat/avio.c

@@ -263,7 +263,7 @@ int ffurl_alloc(URLContext **puc, const char *filename, int flags,
 
     *puc = NULL;
     if (av_strstart(filename, "https:", NULL))
-        av_log(NULL, AV_LOG_WARNING, "https protocol not found, recompile with "
+        av_log(NULL, AV_LOG_WARNING, "https protocol not found, recompile FFmpeg with "
                                      "openssl, gnutls,\n"
                                      "or securetransport enabled.\n");
     return AVERROR_PROTOCOL_NOT_FOUND;

libavformat/avio.h

@@ -79,7 +79,7 @@ typedef struct AVIODirEntry {
     char *name;                           /**< Filename */
     int type;                             /**< Type of the entry */
     int utf8;                             /**< Set to 1 when name is encoded with UTF-8, 0 otherwise.
-                                               Name can be encoded with UTF-8 eventhough 0 is set. */
+                                               Name can be encoded with UTF-8 even though 0 is set. */
     int64_t size;                         /**< File size in bytes, -1 if unknown. */
     int64_t modification_timestamp;       /**< Time of last modification in microseconds since unix
                                                epoch, -1 if unknown. */

libavformat/aviobuf.c

@@ -812,6 +812,7 @@ int ffio_ensure_seekback(AVIOContext *s, int64_t buf_size)
     int max_buffer_size = s->max_packet_size ?
                           s->max_packet_size : IO_BUFFER_SIZE;
     int filled = s->buf_end - s->buffer;
+    ptrdiff_t checksum_ptr_offset = s->checksum_ptr ? s->checksum_ptr - s->buffer : -1;
 
     buf_size += s->buf_ptr - s->buffer + max_buffer_size;
 
@@ -829,6 +830,8 @@ int ffio_ensure_seekback(AVIOContext *s, int64_t buf_size)
     s->buf_end = buffer + (s->buf_end - s->buffer);
     s->buffer = buffer;
     s->buffer_size = buf_size;
+    if (checksum_ptr_offset >= 0)
+        s->checksum_ptr = s->buffer + checksum_ptr_offset;
     return 0;
 }
 

libavformat/flvenc.c

@@ -562,7 +562,7 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
     }
 
     if (enc->codec_id == AV_CODEC_ID_H264 || enc->codec_id == AV_CODEC_ID_MPEG4) {
-        /* check if extradata looks like mp4 formated */
+        /* check if extradata looks like mp4 formatted */
         if (enc->extradata_size > 0 && *(uint8_t*)enc->extradata != 1)
             if ((ret = ff_avc_parse_nal_units_buf(pkt->data, &data, &size)) < 0)
                 return ret;

libavformat/hevc.c

@@ -449,7 +449,7 @@ static int parse_rps(GetBitContext *gb, unsigned int rps_idx,
          *
          * NumDeltaPocs[RefRpsIdx]: num_delta_pocs[rps_idx - 1]
          */
-        for (i = 0; i < num_delta_pocs[rps_idx - 1]; i++) {
+        for (i = 0; i <= num_delta_pocs[rps_idx - 1]; i++) {
             uint8_t use_delta_flag = 0;
             uint8_t used_by_curr_pic_flag = get_bits1(gb);
             if (!used_by_curr_pic_flag)

libavformat/matroskadec.c

@@ -1668,6 +1668,14 @@ static int matroska_parse_tracks(AVFormatContext *s)
         if (!track->codec_id)
             continue;
 
+        if (track->audio.samplerate < 0 || track->audio.samplerate > INT_MAX ||
+            isnan(track->audio.samplerate)) {
+            av_log(matroska->ctx, AV_LOG_WARNING,
+                   "Invalid sample rate %f, defaulting to 8000 instead.\n",
+                   track->audio.samplerate);
+            track->audio.samplerate = 8000;
+        }
+
         if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
             if (!track->default_duration && track->video.frame_rate > 0)
                 track->default_duration = 1000000000 / track->video.frame_rate;
@@ -1869,6 +1877,18 @@ static int matroska_parse_tracks(AVFormatContext *s)
                               NULL, NULL, NULL, NULL);
             avio_write(&b, "TTA1", 4);
             avio_wl16(&b, 1);
+            if (track->audio.channels > UINT16_MAX ||
+                track->audio.bitdepth > UINT16_MAX) {
+                av_log(matroska->ctx, AV_LOG_WARNING,
+                       "Too large audio channel number %"PRIu64
+                       " or bitdepth %"PRIu64". Skipping track.\n",
+                       track->audio.channels, track->audio.bitdepth);
+                av_freep(&extradata);
+                if (matroska->ctx->error_recognition & AV_EF_EXPLODE)
+                    return AVERROR_INVALIDDATA;
+                else
+                    continue;
+            }
             avio_wl16(&b, track->audio.channels);
             avio_wl16(&b, track->audio.bitdepth);
             if (track->audio.out_samplerate < 0 || track->audio.out_samplerate > INT_MAX)

libavformat/rawenc.c

@@ -250,7 +250,9 @@ AVOutputFormat ff_mjpeg_muxer = {
     .write_packet      = ff_raw_write_packet,
     .flags             = AVFMT_NOTIMESTAMPS,
 };
+#endif
 
+#if CONFIG_SINGLEJPEG_MUXER
 AVOutputFormat ff_singlejpeg_muxer = {
     .name              = "singlejpeg",
     .long_name         = NULL_IF_CONFIG_SMALL("JPEG single image"),

libavformat/tls_gnutls.c

@@ -87,7 +87,7 @@ static int tls_close(URLContext *h)
 {
     TLSContext *c = h->priv_data;
     if (c->need_shutdown)
-        gnutls_bye(c->session, GNUTLS_SHUT_RDWR);
+        gnutls_bye(c->session, GNUTLS_SHUT_WR);
     if (c->session)
         gnutls_deinit(c->session);
     if (c->cred)

libavutil/avstring.c

@@ -502,7 +502,7 @@ int main(void)
     printf("Testing av_append_path_component()\n");
     #define TEST_APPEND_PATH_COMPONENT(path, component, expected) \
         fullpath = av_append_path_component((path), (component)); \
-        printf("%s = %s\n", fullpath, expected); \
+        printf("%s = %s\n", fullpath ? fullpath : "(null)", expected); \
         av_free(fullpath);
     TEST_APPEND_PATH_COMPONENT(NULL, NULL, "(null)")
     TEST_APPEND_PATH_COMPONENT("path", NULL, "path");

libavutil/log.h

@@ -309,7 +309,7 @@ AVClassCategory av_default_get_category(void *ptr);
 
 /**
  * Format a line of log the same way as the default callback.
- * @param line          buffer to receive the formated line
+ * @param line          buffer to receive the formatted line
  * @param line_size     size of the buffer
  * @param print_prefix  used to store whether the prefix must be printed;
  *                      must point to a persistent integer initially set to 1

libavutil/opt.h

@@ -213,7 +213,7 @@
  * In some cases it may be more convenient to put all options into an
  * AVDictionary and call av_opt_set_dict() on it. A specific case of this
  * are the format/codec open functions in lavf/lavc which take a dictionary
- * filled with option as a parameter. This allows to set some options
+ * filled with option as a parameter. This makes it possible to set some options
  * that cannot be set otherwise, since e.g. the input file format is not known
  * before the file is actually opened.
  */

libavutil/pixfmt.h

@@ -530,7 +530,7 @@ enum AVColorRange {
  * Illustration showing the location of the first (top left) chroma sample of the
  * image, the left shows only luma, the right
  * shows the location of the chroma sample, the 2 could be imagined to overlay
- * each other but are drawn seperately due to limitations of ASCII
+ * each other but are drawn separately due to limitations of ASCII
  *
  *                1st 2nd       1st 2nd horizontal luma sample positions
  *                 v   v         v   v

libpostproc/postprocess.c

@@ -76,6 +76,7 @@ try to unroll inner for(x=0 ... loop to avoid these damn if(x ... checks
 #include "config.h"
 #include "libavutil/avutil.h"
 #include "libavutil/avassert.h"
+#include "libavutil/intreadwrite.h"
 #include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -997,7 +998,7 @@ void  pp_postprocess(const uint8_t * src[3], const int srcStride[3],
             int i;
             const int count= FFMAX(mbHeight * QPStride, mbWidth);
             for(i=0; i<(count>>2); i++){
-                ((uint32_t*)c->nonBQPTable)[i] = ((const uint32_t*)QP_store)[i] & 0x3F3F3F3F;
+                AV_WN32(c->nonBQPTable + (i<<2), AV_RN32(QP_store + (i<<2)) & 0x3F3F3F3F);
             }
             for(i<<=2; i<count; i++){
                 c->nonBQPTable[i] = QP_store[i] & 0x3F;