update for 2.1.1

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

RELEASE

@@ -1 +1 @@
-2.0
+2.1.1

VERSION

@@ -0,0 +1 @@
+2.1.1

configure

@@ -2878,7 +2878,9 @@ probe_cc(){
     unset _depflags _DEPCMD _DEPFLAGS
     _flags_filter=echo
 
-    if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
+    if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
+        true # no-op to avoid reading stdin in following checks
+    elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
         _type=llvm_gcc
         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"

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         = 2.1.1
 
 # 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/filters.texi

@@ -6422,9 +6422,11 @@ The main purpose of setting @option{mp} to a chroma plane is to reduce CPU
 load and make pullup usable in realtime on slow machines.
 @end table
 
-For example to inverse telecined NTSC input:
+For best results (without duplicated frames in the output file) it is
+necessary to change the output frame rate. For example, to inverse
+telecine NTSC input:
 @example
-pullup,fps=24000/1001
+ffmpeg -i input -vf pullup -r 24000/1001 ...
 @end example
 
 @section removelogo

ffmpeg.c

@@ -817,10 +817,23 @@ static void do_video_out(AVFormatContext *s,
     nb_frames = 1;
 
     format_video_sync = video_sync_method;
-    if (format_video_sync == VSYNC_AUTO)
+    if (format_video_sync == VSYNC_AUTO) {
         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
+        if (   ist
+            && format_video_sync == VSYNC_CFR
+            && input_files[ist->file_index]->ctx->nb_streams == 1
+            && input_files[ist->file_index]->input_ts_offset == 0) {
+            format_video_sync = VSYNC_VSCFR;
+        }
+    }
 
     switch (format_video_sync) {
+    case VSYNC_VSCFR:
+        if (ost->frame_number == 0 && delta - duration >= 0.5) {
+            av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
+            delta = duration;
+            ost->sync_opts = lrint(sync_ipts);
+        }
     case VSYNC_CFR:
         // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
         if (delta < -1.1)
@@ -2357,7 +2370,7 @@ static int transcode_init(void)
                 if (ost->filter && !(codec->time_base.num && codec->time_base.den))
                     codec->time_base = ost->filter->filter->inputs[0]->time_base;
                 if (   av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
-                   && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
+                   && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
                     av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
                                                "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
                 }

ffmpeg.h

@@ -51,6 +51,7 @@
 #define VSYNC_PASSTHROUGH 0
 #define VSYNC_CFR         1
 #define VSYNC_VFR         2
+#define VSYNC_VSCFR       0xfe
 #define VSYNC_DROP        0xff
 
 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
@@ -281,6 +282,7 @@ typedef struct InputFile {
     int eof_reached;      /* true if eof reached */
     int eagain;           /* true if last read attempt returned EAGAIN */
     int ist_index;        /* index of first stream in input_streams */
+    int64_t input_ts_offset;
     int64_t ts_offset;
     int64_t last_ts;
     int64_t start_time;   /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */

ffmpeg_opt.c

@@ -852,6 +852,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
     f->ist_index  = nb_input_streams - ic->nb_streams;
     f->start_time = o->start_time;
     f->recording_time = o->recording_time;
+    f->input_ts_offset = o->input_ts_offset;
     f->ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
     f->nb_streams = ic->nb_streams;
     f->rate_emu   = o->rate_emu;

libavcodec/bink.c

@@ -120,6 +120,7 @@ typedef struct BinkContext {
     int            version;              ///< internal Bink file version
     int            has_alpha;
     int            swap_planes;
+    unsigned       frame_num;
 
     Bundle         bundle[BINKB_NB_SRC]; ///< bundles for decoding all data types
     Tree           col_high[16];         ///< trees for decoding high nibble in "colours" data type
@@ -1206,6 +1207,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
     if (c->version >= 'i')
         skip_bits_long(&gb, 32);
 
+    c->frame_num++;
+
     for (plane = 0; plane < 3; plane++) {
         plane_idx = (!plane || !c->swap_planes) ? plane : (plane ^ 3);
 
@@ -1214,7 +1217,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
                 return ret;
         } else {
             if ((ret = binkb_decode_plane(c, frame, &gb, plane_idx,
-                                          !avctx->frame_number, !!plane)) < 0)
+                                          c->frame_num == 1, !!plane)) < 0)
                 return ret;
         }
         if (get_bits_count(&gb) >= bits_count)
@@ -1332,6 +1335,13 @@ static av_cold int decode_end(AVCodecContext *avctx)
     return 0;
 }
 
+static void flush(AVCodecContext *avctx)
+{
+    BinkContext * const c = avctx->priv_data;
+
+    c->frame_num = 0;
+}
+
 AVCodec ff_bink_decoder = {
     .name           = "binkvideo",
     .long_name      = NULL_IF_CONFIG_SMALL("Bink video"),
@@ -1341,5 +1351,6 @@ AVCodec ff_bink_decoder = {
     .init           = decode_init,
     .close          = decode_end,
     .decode         = decode_frame,
+    .flush          = flush,
     .capabilities   = CODEC_CAP_DR1,
 };

libavcodec/cabac_functions.h

@@ -49,7 +49,10 @@ static void refill(CABACContext *c){
         c->low+= c->bytestream[0]<<1;
 #endif
     c->low -= CABAC_MASK;
-    c->bytestream += CABAC_BITS / 8;
+#if !UNCHECKED_BITSTREAM_READER
+    if (c->bytestream < c->bytestream_end)
+#endif
+        c->bytestream += CABAC_BITS / 8;
 }
 
 static inline void renorm_cabac_decoder_once(CABACContext *c){
@@ -76,7 +79,10 @@ static void refill2(CABACContext *c){
 #endif
 
     c->low += x<<i;
-    c->bytestream += CABAC_BITS/8;
+#if !UNCHECKED_BITSTREAM_READER
+    if (c->bytestream < c->bytestream_end)
+#endif
+        c->bytestream += CABAC_BITS/8;
 }
 
 static av_always_inline int get_cabac_inline(CABACContext *c, uint8_t * const state){

libavcodec/ffv1enc.c

@@ -771,6 +771,10 @@ static av_cold int encode_init(AVCodecContext *avctx)
         s->colorspace = 1;
         s->chroma_planes = 1;
         s->version = FFMAX(s->version, 1);
+        if (!s->ac) {
+            av_log(avctx, AV_LOG_ERROR, "bits_per_raw_sample of more than 8 needs -coder 1 currently\n");
+            return AVERROR(ENOSYS);
+        }
         break;
     default:
         av_log(avctx, AV_LOG_ERROR, "format not supported\n");

libavcodec/h264.c

@@ -3595,7 +3595,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
     } else {
         /* Shorten frame num gaps so we don't have to allocate reference
          * frames just to throw them away */
-        if (h->frame_num != h->prev_frame_num && h->prev_frame_num >= 0) {
+        if (h->frame_num != h->prev_frame_num) {
             int unwrap_prev_frame_num = h->prev_frame_num;
             int max_frame_num         = 1 << h->sps.log2_max_frame_num;
 
@@ -3668,7 +3668,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
             }
         }
 
-        while (h->frame_num != h->prev_frame_num && h->prev_frame_num >= 0 && !h0->first_field &&
+        while (h->frame_num != h->prev_frame_num && !h0->first_field &&
                h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {
             Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
             av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",

libavcodec/jpeglsdec.c

@@ -148,6 +148,8 @@ static inline int ls_get_code_runterm(GetBitContext *gb, JLSState *state,
         ret = ret >> 1;
     }
 
+    if(FFABS(ret) > 0xFFFF)
+        return -0x10000;
     /* update state */
     state->A[Q] += FFABS(ret) - RItype;
     ret         *= state->twonear;

libavcodec/lpc.c

@@ -20,7 +20,7 @@
  */
 
 #include "libavutil/common.h"
-#include "libavutil/lls.h"
+#include "libavutil/lls2.h"
 
 #define LPC_USE_DOUBLE
 #include "lpc.h"
@@ -208,7 +208,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
     }
 
     if (lpc_type == FF_LPC_TYPE_CHOLESKY) {
-        LLSModel m[2];
+        LLSModel2 m[2];
         LOCAL_ALIGNED(32, double, var, [FFALIGN(MAX_LPC_ORDER+1,4)]);
         double av_uninit(weight);
         memset(var, 0, FFALIGN(MAX_LPC_ORDER+1,4)*sizeof(*var));
@@ -217,7 +217,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
             m[0].coeff[max_order-1][j] = -lpc[max_order-1][j];
 
         for(; pass<lpc_passes; pass++){
-            avpriv_init_lls(&m[pass&1], max_order);
+            avpriv_init_lls2(&m[pass&1], max_order);
 
             weight=0;
             for(i=max_order; i<blocksize; i++){
@@ -238,7 +238,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
 
                 m[pass&1].update_lls(&m[pass&1], var);
             }
-            avpriv_solve_lls(&m[pass&1], 0.001, 0);
+            avpriv_solve_lls2(&m[pass&1], 0.001, 0);
         }
 
         for(i=0; i<max_order; i++){

libavcodec/mpeg12dec.c

@@ -2070,7 +2070,6 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
     if (s->codec_tag == AV_RL32("BW10")) {
         s->codec_id              = s->avctx->codec_id = AV_CODEC_ID_MPEG1VIDEO;
     } else {
-        exchange_uv(s); // common init reset pblocks, so we swap them here
         s->swap_uv = 1; // in case of xvmc we need to swap uv for each MB
         s->codec_id              = s->avctx->codec_id = AV_CODEC_ID_MPEG2VIDEO;
     }

libavcodec/mpegvideo.c

@@ -537,6 +537,15 @@ fail:
     return ret;
 }
 
+static void exchange_uv(MpegEncContext *s)
+{
+    int16_t (*tmp)[64];
+
+    tmp           = s->pblocks[4];
+    s->pblocks[4] = s->pblocks[5];
+    s->pblocks[5] = tmp;
+}
+
 static int init_duplicate_context(MpegEncContext *s)
 {
     int y_size = s->b8_stride * (2 * s->mb_height + 1);
@@ -567,6 +576,8 @@ static int init_duplicate_context(MpegEncContext *s)
     for (i = 0; i < 12; i++) {
         s->pblocks[i] = &s->block[i];
     }
+    if (s->avctx->codec_tag == AV_RL32("VCR2"))
+        exchange_uv(s);
 
     if (s->out_format == FMT_H263) {
         /* ac values */
@@ -641,6 +652,8 @@ int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
     for (i = 0; i < 12; i++) {
         dst->pblocks[i] = &dst->block[i];
     }
+    if (dst->avctx->codec_tag == AV_RL32("VCR2"))
+        exchange_uv(dst);
     if (!dst->edge_emu_buffer &&
         (ret = ff_mpv_frame_size_alloc(dst, dst->linesize)) < 0) {
         av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "

libavcodec/pcm-dvd.c

@@ -173,6 +173,17 @@ static void *pcm_dvd_decode_samples(AVCodecContext *avctx, const uint8_t *src,
 #endif
         return dst16;
     case 20:
+        if (avctx->channels == 1) {
+            do {
+                for (i = 2; i; i--) {
+                    dst32[0] = bytestream2_get_be16u(&gb) << 16;
+                    dst32[1] = bytestream2_get_be16u(&gb) << 16;
+                    t = bytestream2_get_byteu(&gb);
+                    *dst32++ += (t & 0xf0) << 8;
+                    *dst32++ += (t & 0x0f) << 12;
+                }
+            } while (--blocks);
+        } else {
         do {
             for (i = s->groups_per_block; i; i--) {
                 dst32[0] = bytestream2_get_be16u(&gb) << 16;
@@ -180,15 +191,26 @@ static void *pcm_dvd_decode_samples(AVCodecContext *avctx, const uint8_t *src,
                 dst32[2] = bytestream2_get_be16u(&gb) << 16;
                 dst32[3] = bytestream2_get_be16u(&gb) << 16;
                 t = bytestream2_get_byteu(&gb);
-                *dst32 += (t & 0xf0) << 8;
-                *dst32 += (t & 0x0f) << 12;
+                *dst32++ += (t & 0xf0) << 8;
+                *dst32++ += (t & 0x0f) << 12;
                 t = bytestream2_get_byteu(&gb);
-                *dst32 += (t & 0xf0) << 8;
-                *dst32 += (t & 0x0f) << 12;
+                *dst32++ += (t & 0xf0) << 8;
+                *dst32++ += (t & 0x0f) << 12;
             }
         } while (--blocks);
+        }
         return dst32;
     case 24:
+        if (avctx->channels == 1) {
+            do {
+                for (i = 2; i; i--) {
+                    dst32[0] = bytestream2_get_be16u(&gb) << 16;
+                    dst32[1] = bytestream2_get_be16u(&gb) << 16;
+                    *dst32++ += bytestream2_get_byteu(&gb) << 8;
+                    *dst32++ += bytestream2_get_byteu(&gb) << 8;
+                }
+            } while (--blocks);
+        } else {
         do {
             for (i = s->groups_per_block; i; i--) {
                 dst32[0] = bytestream2_get_be16u(&gb) << 16;
@@ -201,6 +223,7 @@ static void *pcm_dvd_decode_samples(AVCodecContext *avctx, const uint8_t *src,
                 *dst32++ += bytestream2_get_byteu(&gb) << 8;
             }
         } while (--blocks);
+        }
         return dst32;
     default:
         return NULL;

libavcodec/tiff_common.c

@@ -219,7 +219,7 @@ int ff_tadd_bytes_metadata(int count, const char *name, const char *sep,
     char *ap;
     int i;
 
-    if (count >= INT_MAX / sizeof(int8_t) || count <= 0)
+    if (count >= INT_MAX / sizeof(int8_t) || count < 0)
         return AVERROR_INVALIDDATA;
     if (bytestream2_get_bytes_left(gb) < count * sizeof(int8_t))
         return AVERROR_INVALIDDATA;

libavcodec/version.h

@@ -30,7 +30,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 55
 #define LIBAVCODEC_VERSION_MINOR  39
-#define LIBAVCODEC_VERSION_MICRO 100
+#define LIBAVCODEC_VERSION_MICRO 101
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \

libavcodec/x86/cabac.h

@@ -36,6 +36,18 @@
 
 #if HAVE_INLINE_ASM
 
+#ifndef UNCHECKED_BITSTREAM_READER
+#define UNCHECKED_BITSTREAM_READER !CONFIG_SAFE_BITSTREAM_READER
+#endif
+
+#if UNCHECKED_BITSTREAM_READER
+#define END_CHECK(end) ""
+#else
+#define END_CHECK(end) \
+        "cmp    "end"       , %%"REG_c"                                 \n\t"\
+        "jge    1f                                                      \n\t"
+#endif
+
 #ifdef BROKEN_RELOCATIONS
 #define TABLES_ARG , "r"(tables)
 
@@ -80,7 +92,9 @@
         "test   "lowword"   , "lowword"                                 \n\t"\
         "jnz    2f                                                      \n\t"\
         "mov    "byte"      , %%"REG_c"                                 \n\t"\
+        END_CHECK(end)\
         "add"OPSIZE" $2     , "byte"                                    \n\t"\
+        "1:                                                             \n\t"\
         "movzwl (%%"REG_c") , "tmp"                                     \n\t"\
         "lea    -1("low")   , %%ecx                                     \n\t"\
         "xor    "low"       , %%ecx                                     \n\t"\
@@ -139,7 +153,9 @@
         "test   "lowword"   , "lowword"                                 \n\t"\
         " jnz   2f                                                      \n\t"\
         "mov    "byte"      , %%"REG_c"                                 \n\t"\
+        END_CHECK(end)\
         "add"OPSIZE" $2     , "byte"                                    \n\t"\
+        "1:                                                             \n\t"\
         "movzwl (%%"REG_c")     , "tmp"                                 \n\t"\
         "lea    -1("low")   , %%ecx                                     \n\t"\
         "xor    "low"       , %%ecx                                     \n\t"\
@@ -214,9 +230,16 @@ static av_always_inline int get_cabac_bypass_sign_x86(CABACContext *c, int val)
         "movzwl         (%1), %%edx     \n\t"
         "bswap         %%edx            \n\t"
         "shrl            $15, %%edx     \n\t"
+#if UNCHECKED_BITSTREAM_READER
         "add              $2, %1        \n\t"
         "addl          %%edx, %%eax     \n\t"
         "mov              %1, %c4(%2)   \n\t"
+#else
+        "addl          %%edx, %%eax     \n\t"
+        "cmp         %c5(%2), %1        \n\t"
+        "jge              1f            \n\t"
+        "add"OPSIZE"      $2, %c4(%2)   \n\t"
+#endif
         "1:                             \n\t"
         "movl          %%eax, %c3(%2)   \n\t"
 

libavformat/http.c

@@ -95,7 +95,7 @@ static const AVOption options[] = {
 {"multiple_requests", "use persistent connections", OFFSET(multiple_requests), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, D|E },
 {"post_data", "set custom HTTP post data", OFFSET(post_data), AV_OPT_TYPE_BINARY, .flags = D|E },
 {"mime_type", "set MIME type", OFFSET(mime_type), AV_OPT_TYPE_STRING, {0}, 0, 0, 0 },
-{"cookies", "set cookies to be sent in applicable future requests, use newline delimited Set-Cookie HTTP field value syntax", OFFSET(cookies), AV_OPT_TYPE_STRING, {0}, 0, 0, 0 },
+{"cookies", "set cookies to be sent in applicable future requests, use newline delimited Set-Cookie HTTP field value syntax", OFFSET(cookies), AV_OPT_TYPE_STRING, {0}, 0, 0, D },
 {"icy", "request ICY metadata", OFFSET(icy), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, D },
 {"icy_metadata_headers", "return ICY metadata headers", OFFSET(icy_metadata_headers), AV_OPT_TYPE_STRING, {0}, 0, 0, 0 },
 {"icy_metadata_packet", "return current ICY metadata packet", OFFSET(icy_metadata_packet), AV_OPT_TYPE_STRING, {0}, 0, 0, 0 },

libavformat/img2enc.c

@@ -21,6 +21,7 @@
  */
 
 #include "libavutil/intreadwrite.h"
+#include "libavutil/avassert.h"
 #include "libavutil/avstring.h"
 #include "libavutil/log.h"
 #include "libavutil/opt.h"
@@ -37,6 +38,7 @@ typedef struct {
     char path[1024];
     int update;
     int use_strftime;
+    const char *muxer;
 } VideoMuxData;
 
 static int write_header(AVFormatContext *s)
@@ -44,7 +46,6 @@ static int write_header(AVFormatContext *s)
     VideoMuxData *img = s->priv_data;
     AVStream *st = s->streams[0];
     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(st->codec->pix_fmt);
-    const char *str;
 
     av_strlcpy(img->path, s->filename, sizeof(img->path));
 
@@ -54,14 +55,18 @@ static int write_header(AVFormatContext *s)
     else
         img->is_pipe = 1;
 
-    str = strrchr(img->path, '.');
+    if (st->codec->codec_id == AV_CODEC_ID_GIF) {
+        img->muxer = "gif";
+    } else if (st->codec->codec_id == AV_CODEC_ID_RAWVIDEO) {
+        const char *str = strrchr(img->path, '.');
+        /* TODO: reindent */
     img->split_planes =     str
                          && !av_strcasecmp(str + 1, "y")
                          && s->nb_streams == 1
-                         && st->codec->codec_id == AV_CODEC_ID_RAWVIDEO
                          && desc
                          &&(desc->flags & AV_PIX_FMT_FLAG_PLANAR)
                          && desc->nb_components >= 3;
+    }
     return 0;
 }
 
@@ -124,6 +129,37 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
             avio_write(pb[3], pkt->data + ysize + 2*usize, ysize);
             avio_close(pb[3]);
         }
+    } else if (img->muxer) {
+        int ret;
+        AVStream *st;
+        AVPacket pkt2 = {0};
+        AVFormatContext *fmt = NULL;
+
+        av_assert0(!img->split_planes);
+
+        ret = avformat_alloc_output_context2(&fmt, NULL, img->muxer, s->filename);
+        if (ret < 0)
+            return ret;
+        st = avformat_new_stream(fmt, NULL);
+        if (!st) {
+            avformat_free_context(fmt);
+            return AVERROR(ENOMEM);
+        }
+        st->id = pkt->stream_index;
+
+        fmt->pb = pb[0];
+        if ((ret = av_copy_packet(&pkt2, pkt))                            < 0 ||
+            (ret = av_dup_packet(&pkt2))                                  < 0 ||
+            (ret = avcodec_copy_context(st->codec, s->streams[0]->codec)) < 0 ||
+            (ret = avformat_write_header(fmt, NULL))                      < 0 ||
+            (ret = av_interleaved_write_frame(fmt, &pkt2))                < 0 ||
+            (ret = av_write_trailer(fmt))                                 < 0) {
+            av_free_packet(&pkt2);
+            avformat_free_context(fmt);
+            return ret;
+        }
+        av_free_packet(&pkt2);
+        avformat_free_context(fmt);
     } else {
         avio_write(pb[0], pkt->data, pkt->size);
     }

libavformat/mpegts.c

@@ -1976,7 +1976,9 @@ static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size, co
         /* check packet sync byte */
         if ((*data)[0] != 0x47) {
             /* find a new packet start */
-            avio_seek(pb, -raw_packet_size, SEEK_CUR);
+            uint64_t pos = avio_tell(pb);
+            avio_seek(pb, -FFMIN(raw_packet_size, pos), SEEK_CUR);
+
             if (mpegts_resync(s) < 0)
                 return AVERROR(EAGAIN);
             else

libavformat/spdifdec.c

@@ -57,7 +57,7 @@ static int spdif_get_offset_and_codec(AVFormatContext *s,
         break;
     case IEC61937_MPEG2_AAC:
         init_get_bits(&gbc, buf, AAC_ADTS_HEADER_SIZE * 8);
-        if (avpriv_aac_parse_header(&gbc, &aac_hdr)) {
+        if (avpriv_aac_parse_header(&gbc, &aac_hdr) < 0) {
             if (s) /* be silent during a probe */
                 av_log(s, AV_LOG_ERROR, "Invalid AAC packet in IEC 61937\n");
             return AVERROR_INVALIDDATA;

libavformat/thp.c

@@ -26,15 +26,15 @@
 
 typedef struct ThpDemuxContext {
     int              version;
-    int              first_frame;
-    int              first_framesz;
-    int              last_frame;
+    unsigned         first_frame;
+    unsigned         first_framesz;
+    unsigned         last_frame;
     int              compoff;
-    int              framecnt;
+    unsigned         framecnt;
     AVRational       fps;
-    int              frame;
-    int              next_frame;
-    int              next_framesz;
+    unsigned         frame;
+    int64_t          next_frame;
+    unsigned         next_framesz;
     int              video_stream_index;
     int              audio_stream_index;
     int              compcount;
@@ -158,7 +158,7 @@ static int thp_read_packet(AVFormatContext *s,
         avio_seek(pb, thp->next_frame, SEEK_SET);
 
         /* Locate the next frame and read out its size.  */
-        thp->next_frame += thp->next_framesz;
+        thp->next_frame += FFMAX(thp->next_framesz, 1);
         thp->next_framesz = avio_rb32(pb);
 
                         avio_rb32(pb); /* Previous total size.  */

libavformat/utils.c

@@ -1039,7 +1039,8 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
     if((s->flags & AVFMT_FLAG_IGNDTS) && pkt->pts != AV_NOPTS_VALUE)
         pkt->dts= AV_NOPTS_VALUE;
 
-    if (st->codec->codec_id != AV_CODEC_ID_H264 && pc && pc->pict_type == AV_PICTURE_TYPE_B)
+    if (pc && pc->pict_type == AV_PICTURE_TYPE_B
+        && !st->codec->has_b_frames)
         //FIXME Set low_delay = 0 when has_b_frames = 1
         st->codec->has_b_frames = 1;
 
@@ -2863,9 +2864,10 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
                 goto find_stream_info_err;
         }
 
-        read_size += pkt->size;
-
         st = ic->streams[pkt->stream_index];
+        if (!(st->disposition & AV_DISPOSITION_ATTACHED_PIC))
+            read_size += pkt->size;
+
         if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {
             /* check for non-increasing dts */
             if (st->info->fps_last_dts != AV_NOPTS_VALUE &&

libavutil/Makefile

@@ -90,7 +90,8 @@ OBJS = adler32.o                                                        \
        intfloat_readwrite.o                                             \
        intmath.o                                                        \
        lfg.o                                                            \
-       lls.o                                                            \
+       lls1.o                                                           \
+       lls2.o                                                           \
        log.o                                                            \
        log2_tab.o                                                       \
        mathematics.o                                                    \
@@ -143,7 +144,8 @@ TESTPROGS = adler32                                                     \
             fifo                                                        \
             hmac                                                        \
             lfg                                                         \
-            lls                                                         \
+            lls1                                                        \
+            lls2                                                        \
             md5                                                         \
             murmur3                                                     \
             opt                                                         \

libavutil/lls1.c

@@ -30,14 +30,23 @@
 
 #include "attributes.h"
 #include "version.h"
-#include "lls.h"
+#include "lls1.h"
 
-static void update_lls(LLSModel *m, double *var)
+#if FF_API_LLS1
+
+av_cold void avpriv_init_lls(LLSModel *m, int indep_count)
+{
+    memset(m, 0, sizeof(LLSModel));
+    m->indep_count = indep_count;
+}
+
+void avpriv_update_lls(LLSModel *m, double *var, double decay)
 {
     int i, j;
 
     for (i = 0; i <= m->indep_count; i++) {
         for (j = i; j <= m->indep_count; j++) {
+            m->covariance[i][j] *= decay;
             m->covariance[i][j] += var[i] * var[j];
         }
     }
@@ -46,8 +55,8 @@ static void update_lls(LLSModel *m, double *var)
 void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order)
 {
     int i, j, k;
-    double (*factor)[MAX_VARS_ALIGN] = (void *) &m->covariance[1][0];
-    double (*covar) [MAX_VARS_ALIGN] = (void *) &m->covariance[1][1];
+    double (*factor)[MAX_VARS + 1] = (void *) &m->covariance[1][0];
+    double (*covar) [MAX_VARS + 1] = (void *) &m->covariance[1][1];
     double *covar_y                = m->covariance[0];
     int count                      = m->indep_count;
 
@@ -100,7 +109,7 @@ void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order)
     }
 }
 
-static double evaluate_lls(LLSModel *m, double *param, int order)
+double avpriv_evaluate_lls(LLSModel *m, double *param, int order)
 {
     int i;
     double out = 0;
@@ -111,16 +120,6 @@ static double evaluate_lls(LLSModel *m, double *param, int order)
     return out;
 }
 
-av_cold void avpriv_init_lls(LLSModel *m, int indep_count)
-{
-    memset(m, 0, sizeof(LLSModel));
-    m->indep_count = indep_count;
-    m->update_lls = update_lls;
-    m->evaluate_lls = evaluate_lls;
-    if (ARCH_X86)
-        ff_init_lls_x86(m);
-}
-
 #if FF_API_LLS_PRIVATE
 av_cold void av_init_lls(LLSModel *m, int indep_count)
 {
@@ -128,7 +127,7 @@ av_cold void av_init_lls(LLSModel *m, int indep_count)
 }
 void av_update_lls(LLSModel *m, double *param, double decay)
 {
-    m->update_lls(m, param);
+    avpriv_update_lls(m, param, decay);
 }
 void av_solve_lls(LLSModel *m, double threshold, int min_order)
 {
@@ -136,10 +135,12 @@ void av_solve_lls(LLSModel *m, double threshold, int min_order)
 }
 double av_evaluate_lls(LLSModel *m, double *param, int order)
 {
-    return m->evaluate_lls(m, param, order);
+    return avpriv_evaluate_lls(m, param, order);
 }
 #endif /* FF_API_LLS_PRIVATE */
 
+#endif /* FF_API_LLS1 */
+
 #ifdef TEST
 
 #include <stdio.h>
@@ -156,17 +157,17 @@ int main(void)
     avpriv_init_lls(&m, 3);
 
     for (i = 0; i < 100; i++) {
-        LOCAL_ALIGNED(32, double, var, [4]);
+        double var[4];
         double eval;
 
         var[0] = (av_lfg_get(&lfg) / (double) UINT_MAX - 0.5) * 2;
         var[1] = var[0] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
         var[2] = var[1] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
         var[3] = var[2] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
-        m.update_lls(&m, var);
+        avpriv_update_lls(&m, var, 0.99);
         avpriv_solve_lls(&m, 0.001, 0);
         for (order = 0; order < 3; order++) {
-            eval = m.evaluate_lls(&m, var + 1, order);
+            eval = avpriv_evaluate_lls(&m, var + 1, order);
             printf("real:%9f order:%d pred:%9f var:%f coeffs:%f %9f %9f\n",
                    var[0], order, eval, sqrt(m.variance[order] / (i + 1)),
                    m.coeff[order][0], m.coeff[order][1],

libavutil/lls1.h

@@ -0,0 +1,54 @@
+/*
+ * linear least squares model
+ *
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LLS_H
+#define AVUTIL_LLS_H
+
+#include "version.h"
+
+#define MAX_VARS 32
+
+//FIXME avoid direct access to LLSModel from outside
+
+/**
+ * Linear least squares model.
+ */
+typedef struct LLSModel {
+    double covariance[MAX_VARS + 1][MAX_VARS + 1];
+    double coeff[MAX_VARS][MAX_VARS];
+    double variance[MAX_VARS];
+    int indep_count;
+} LLSModel;
+
+void avpriv_init_lls(LLSModel *m, int indep_count);
+void avpriv_update_lls(LLSModel *m, double *param, double decay);
+void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order);
+double avpriv_evaluate_lls(LLSModel *m, double *param, int order);
+
+#if FF_API_LLS_PRIVATE
+void av_init_lls(LLSModel *m, int indep_count);
+void av_update_lls(LLSModel *m, double *param, double decay);
+void av_solve_lls(LLSModel *m, double threshold, int min_order);
+double av_evaluate_lls(LLSModel *m, double *param, int order);
+#endif /* FF_API_LLS_PRIVATE */
+
+#endif /* AVUTIL_LLS_H */

libavutil/lls2.c

@@ -0,0 +1,160 @@
+/*
+ * linear least squares model
+ *
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * linear least squares model
+ */
+
+#include <math.h>
+#include <string.h>
+
+#include "attributes.h"
+#include "version.h"
+#include "lls2.h"
+
+static void update_lls(LLSModel2 *m, double *var)
+{
+    int i, j;
+
+    for (i = 0; i <= m->indep_count; i++) {
+        for (j = i; j <= m->indep_count; j++) {
+            m->covariance[i][j] += var[i] * var[j];
+        }
+    }
+}
+
+void avpriv_solve_lls2(LLSModel2 *m, double threshold, unsigned short min_order)
+{
+    int i, j, k;
+    double (*factor)[MAX_VARS_ALIGN] = (void *) &m->covariance[1][0];
+    double (*covar) [MAX_VARS_ALIGN] = (void *) &m->covariance[1][1];
+    double *covar_y                = m->covariance[0];
+    int count                      = m->indep_count;
+
+    for (i = 0; i < count; i++) {
+        for (j = i; j < count; j++) {
+            double sum = covar[i][j];
+
+            for (k = i - 1; k >= 0; k--)
+                sum -= factor[i][k] * factor[j][k];
+
+            if (i == j) {
+                if (sum < threshold)
+                    sum = 1.0;
+                factor[i][i] = sqrt(sum);
+            } else {
+                factor[j][i] = sum / factor[i][i];
+            }
+        }
+    }
+
+    for (i = 0; i < count; i++) {
+        double sum = covar_y[i + 1];
+
+        for (k = i - 1; k >= 0; k--)
+            sum -= factor[i][k] * m->coeff[0][k];
+
+        m->coeff[0][i] = sum / factor[i][i];
+    }
+
+    for (j = count - 1; j >= min_order; j--) {
+        for (i = j; i >= 0; i--) {
+            double sum = m->coeff[0][i];
+
+            for (k = i + 1; k <= j; k++)
+                sum -= factor[k][i] * m->coeff[j][k];
+
+            m->coeff[j][i] = sum / factor[i][i];
+        }
+
+        m->variance[j] = covar_y[0];
+
+        for (i = 0; i <= j; i++) {
+            double sum = m->coeff[j][i] * covar[i][i] - 2 * covar_y[i + 1];
+
+            for (k = 0; k < i; k++)
+                sum += 2 * m->coeff[j][k] * covar[k][i];
+
+            m->variance[j] += m->coeff[j][i] * sum;
+        }
+    }
+}
+
+static double evaluate_lls(LLSModel2 *m, double *param, int order)
+{
+    int i;
+    double out = 0;
+
+    for (i = 0; i <= order; i++)
+        out += param[i] * m->coeff[order][i];
+
+    return out;
+}
+
+av_cold void avpriv_init_lls2(LLSModel2 *m, int indep_count)
+{
+    memset(m, 0, sizeof(LLSModel2));
+    m->indep_count = indep_count;
+    m->update_lls = update_lls;
+    m->evaluate_lls = evaluate_lls;
+    if (ARCH_X86)
+        ff_init_lls_x86(m);
+}
+
+#ifdef TEST
+
+#include <stdio.h>
+#include <limits.h>
+#include "lfg.h"
+
+int main(void)
+{
+    LLSModel2 m;
+    int i, order;
+    AVLFG lfg;
+
+    av_lfg_init(&lfg, 1);
+    avpriv_init_lls2(&m, 3);
+
+    for (i = 0; i < 100; i++) {
+        LOCAL_ALIGNED(32, double, var, [4]);
+        double eval;
+
+        var[0] = (av_lfg_get(&lfg) / (double) UINT_MAX - 0.5) * 2;
+        var[1] = var[0] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
+        var[2] = var[1] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
+        var[3] = var[2] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
+        m.update_lls(&m, var);
+        avpriv_solve_lls2(&m, 0.001, 0);
+        for (order = 0; order < 3; order++) {
+            eval = m.evaluate_lls(&m, var + 1, order);
+            printf("real:%9f order:%d pred:%9f var:%f coeffs:%f %9f %9f\n",
+                   var[0], order, eval, sqrt(m.variance[order] / (i + 1)),
+                   m.coeff[order][0], m.coeff[order][1],
+                   m.coeff[order][2]);
+        }
+    }
+    return 0;
+}
+
+#endif

libavutil/lls2.h

@@ -30,12 +30,12 @@
 #define MAX_VARS 32
 #define MAX_VARS_ALIGN FFALIGN(MAX_VARS+1,4)
 
-//FIXME avoid direct access to LLSModel from outside
+//FIXME avoid direct access to LLSModel2 from outside
 
 /**
  * Linear least squares model.
  */
-typedef struct LLSModel {
+typedef struct LLSModel2 {
     DECLARE_ALIGNED(32, double, covariance[MAX_VARS_ALIGN][MAX_VARS_ALIGN]);
     DECLARE_ALIGNED(32, double, coeff[MAX_VARS][MAX_VARS]);
     double variance[MAX_VARS];
@@ -47,25 +47,18 @@ typedef struct LLSModel {
      *            32-byte aligned, and any padding elements must be initialized
      *            (i.e not denormal/nan).
      */
-    void (*update_lls)(struct LLSModel *m, double *var);
+    void (*update_lls)(struct LLSModel2 *m, double *var);
     /**
      * Inner product of var[] and the LPC coefs.
      * @param m this context
      * @param var training samples, excluding the value to be predicted. unaligned.
      * @param order lpc order
      */
-    double (*evaluate_lls)(struct LLSModel *m, double *var, int order);
-} LLSModel;
+    double (*evaluate_lls)(struct LLSModel2 *m, double *var, int order);
+} LLSModel2;
 
-void avpriv_init_lls(LLSModel *m, int indep_count);
-void ff_init_lls_x86(LLSModel *m);
-void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order);
-
-#if FF_API_LLS_PRIVATE
-void av_init_lls(LLSModel *m, int indep_count);
-void av_update_lls(LLSModel *m, double *param, double decay);
-void av_solve_lls(LLSModel *m, double threshold, int min_order);
-double av_evaluate_lls(LLSModel *m, double *param, int order);
-#endif /* FF_API_LLS_PRIVATE */
+void avpriv_init_lls2(LLSModel2 *m, int indep_count);
+void ff_init_lls_x86(LLSModel2 *m);
+void avpriv_solve_lls2(LLSModel2 *m, double threshold, unsigned short min_order);
 
 #endif /* AVUTIL_LLS_H */

libavutil/version.h

@@ -76,7 +76,7 @@
 
 #define LIBAVUTIL_VERSION_MAJOR  52
 #define LIBAVUTIL_VERSION_MINOR  48
-#define LIBAVUTIL_VERSION_MICRO 100
+#define LIBAVUTIL_VERSION_MICRO 101
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                                LIBAVUTIL_VERSION_MINOR, \
@@ -132,6 +132,9 @@
 #ifndef FF_API_LLS_PRIVATE
 #define FF_API_LLS_PRIVATE              (LIBAVUTIL_VERSION_MAJOR < 53)
 #endif
+#ifndef FF_API_LLS1
+#define FF_API_LLS1                     (LIBAVUTIL_VERSION_MAJOR < 53)
+#endif
 #ifndef FF_API_AVFRAME_LAVC
 #define FF_API_AVFRAME_LAVC             (LIBAVUTIL_VERSION_MAJOR < 53)
 #endif

libavutil/x86/lls.asm

@@ -29,7 +29,7 @@ SECTION .text
 %define COVAR_STRIDE MAX_VARS_ALIGN*8
 %define COVAR(x,y) [covarq + (x)*8 + (y)*COVAR_STRIDE]
 
-struc LLSModel
+struc LLSModel2
     .covariance:  resq MAX_VARS_ALIGN*MAX_VARS_ALIGN
     .coeff:       resq MAX_VARS*MAX_VARS
     .variance:    resq MAX_VARS
@@ -49,7 +49,7 @@ INIT_XMM sse2
 %define movdqa movaps
 cglobal update_lls, 2,5,8, ctx, var, i, j, covar2
     %define covarq ctxq
-    mov     id, [ctxq + LLSModel.indep_count]
+    mov     id, [ctxq + LLSModel2.indep_count]
     lea   varq, [varq + iq*8]
     neg     iq
     mov covar2q, covarq
@@ -129,7 +129,7 @@ cglobal update_lls, 2,5,8, ctx, var, i, j, covar2
 INIT_YMM avx
 cglobal update_lls, 3,6,8, ctx, var, count, i, j, count2
     %define covarq ctxq
-    mov  countd, [ctxq + LLSModel.indep_count]
+    mov  countd, [ctxq + LLSModel2.indep_count]
     lea count2d, [countq-2]
     xor     id, id
 .loopi:
@@ -206,7 +206,7 @@ cglobal evaluate_lls, 3,4,2, ctx, var, order, i
     %define coefsq ctxq
     mov     id, orderd
     imul    orderd, MAX_VARS
-    lea     coefsq, [ctxq + LLSModel.coeff + orderq*8]
+    lea     coefsq, [ctxq + LLSModel2.coeff + orderq*8]
     movsd   m0, [varq]
     movhpd  m0, [varq + 8]
     mulpd   m0, [coefsq]

libavutil/x86/lls_init.c

@@ -20,14 +20,14 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "libavutil/lls.h"
+#include "libavutil/lls2.h"
 #include "libavutil/x86/cpu.h"
 
-void ff_update_lls_sse2(LLSModel *m, double *var);
-void ff_update_lls_avx(LLSModel *m, double *var);
-double ff_evaluate_lls_sse2(LLSModel *m, double *var, int order);
+void ff_update_lls_sse2(LLSModel2 *m, double *var);
+void ff_update_lls_avx(LLSModel2 *m, double *var);
+double ff_evaluate_lls_sse2(LLSModel2 *m, double *var, int order);
 
-av_cold void ff_init_lls_x86(LLSModel *m)
+av_cold void ff_init_lls_x86(LLSModel2 *m)
 {
     int cpu_flags = av_get_cpu_flags();
     if (EXTERNAL_SSE2(cpu_flags)) {