Merge remote-tracking branch 'qatar/master'

* qatar/master:
  Revert "swscale: use 15-bit intermediates for 9/10-bit scaling."
  swscale: use 15-bit intermediates for 9/10-bit scaling.
  dct32: Add SSE2 ASM optimizations
  Correct chroma vector calculation for RealVideo 3.
  lavf: Add an option to discard corrupted frames
  mpegts: Mark wrongly-sized packets as corrupted
  mpegts: Move scan test to handle_packets
  mpegts: Mark corrupted packets
  mpegts: Reset continuity counter on seek
  mpegts: Fix for continuity counter
  mpegts: Silence "can't seek" warning on unseekable
  apichange: add an entry for AV_PKT_FLAG_CORRUPT
  avpacket: signal possibly corrupted packets
  mpeg4videodec: remove dead code that would have detected erroneous encoding
  aac: Remove some suspicious illegal memcpy()s from LTP.
  bink: Eliminate unnecessary shadow declaration.

Conflicts:
	doc/APIchanges
	libavcodec/version.h
	libavformat/avformat.h
	libavformat/options.c
	libavformat/utils.c

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

14 files changed, 140 insertions, 73 deletions

diff --git a/doc/APIchanges b/doc/APIchanges
index 94a598798d..eba7f8416b 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,9 @@ libavutil:   2011-04-18
 
 API changes, most recent first:
 
+2011-08-02 - 9d39cbf - lavc 53.7.1
+  Add AV_PKT_FLAG_CORRUPT AVPacket flag.
+
 2011-07-16 - xxxxxx - lavfi 2.27.0
   Add audio packing negotiation fields and helper functions.
 
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 7fce228193..927d4314fa 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -1791,12 +1791,10 @@ static void windowing_and_mdct_ltp(AACContext *ac, float *out,
     } else {
         memset(in, 0, 448 * sizeof(float));
         ac->dsp.vector_fmul(in + 448, in + 448, swindow_prev, 128);
-        memcpy(in + 576, in + 576, 448 * sizeof(float));
     }
     if (ics->window_sequence[0] != LONG_START_SEQUENCE) {
         ac->dsp.vector_fmul_reverse(in + 1024, in + 1024, lwindow, 1024);
     } else {
-        memcpy(in + 1024, in + 1024, 448 * sizeof(float));
         ac->dsp.vector_fmul_reverse(in + 1024 + 448, in + 1024 + 448, swindow, 128);
         memset(in + 1024 + 576, 0, 448 * sizeof(float));
     }
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 0bb86690bc..2a438ccc13 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -800,6 +800,9 @@ typedef struct AVPacket {
     uint8_t *data;
     int   size;
     int   stream_index;
+    /**
+     * A combination of AV_PKT_FLAG values
+     */
     int   flags;
     /**
      * Additional packet data that can be provided by the container.
@@ -840,7 +843,8 @@ typedef struct AVPacket {
      */
     int64_t convergence_duration;
 } AVPacket;
-#define AV_PKT_FLAG_KEY   0x0001
+#define AV_PKT_FLAG_KEY     0x0001 ///< The packet contains a keyframe
+#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
 
 /**
  * Audio Video Frame.
diff --git a/libavcodec/bink.c b/libavcodec/bink.c
index 6b58f7716b..e137312693 100644
--- a/libavcodec/bink.c
+++ b/libavcodec/bink.c
@@ -624,7 +624,6 @@ static int read_dct_coeffs(GetBitContext *gb, int32_t block[64], const uint8_t *
                         coef_list[--list_start] = ccoef;
                         mode_list[  list_start] = 3;
                     } else {
-                        int t;
                         if (!bits) {
                             t = 1 - (get_bits1(gb) << 1);
                         } else {
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 2be01041fe..ee9dd7db6b 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -737,8 +737,8 @@ static inline void rv34_mc(RV34DecContext *r, const int block_type,
         my = (s->current_picture_ptr->f.motion_val[dir][mv_pos][1] + (3 << 24)) / 3 - (1 << 24);
         lx = (s->current_picture_ptr->f.motion_val[dir][mv_pos][0] + (3 << 24)) % 3;
         ly = (s->current_picture_ptr->f.motion_val[dir][mv_pos][1] + (3 << 24)) % 3;
-        chroma_mx = (s->current_picture_ptr->f.motion_val[dir][mv_pos][0] + 1) >> 1;
-        chroma_my = (s->current_picture_ptr->f.motion_val[dir][mv_pos][1] + 1) >> 1;
+        chroma_mx = s->current_picture_ptr->f.motion_val[dir][mv_pos][0] / 2;
+        chroma_my = s->current_picture_ptr->f.motion_val[dir][mv_pos][1] / 2;
         umx = (chroma_mx + (3 << 24)) / 3 - (1 << 24);
         umy = (chroma_my + (3 << 24)) / 3 - (1 << 24);
         uvmx = chroma_coeffs[(chroma_mx + (3 << 24)) % 3];
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 69040a5195..b19e8946d8 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -22,7 +22,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 53
 #define LIBAVCODEC_VERSION_MINOR  9
-#define LIBAVCODEC_VERSION_MICRO  0
+#define LIBAVCODEC_VERSION_MICRO  1
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
diff --git a/libavcodec/x86/dct32_sse.asm b/libavcodec/x86/dct32_sse.asm
index 7f5f815591..9a2a6ea88c 100644
--- a/libavcodec/x86/dct32_sse.asm
+++ b/libavcodec/x86/dct32_sse.asm
@@ -63,6 +63,13 @@ ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000, 0, 0, 0x80000000, 0x80000000
     mulps  %1, %3
 %endmacro
 
+%macro BUTTERFLY0_SSE2 5
+    pshufd %4, %1, %5
+    xorps  %1, %2
+    addps  %1, %4
+    mulps  %1, %3
+%endmacro
+
 %macro BUTTERFLY0_AVX 5
     vshufps %4, %1, %1, %5
     vxorps  %1, %1, %2
@@ -405,18 +412,17 @@ INIT_XMM
 
 
 INIT_XMM
+%macro DCT32_FUNC 1
 ; void ff_dct32_float_sse(FFTSample *out, const FFTSample *in)
-cglobal dct32_float_sse, 2,3,16, out, in, tmp
+cglobal dct32_float_%1, 2,3,16, out, in, tmp
     ; pass 1
 
     movaps      m0, [inq+0]
-    movaps      m1, [inq+112]
-    shufps      m1, m1, 0x1b
+    LOAD_INV    m1, [inq+112]
     BUTTERFLY   m0, m1, [ps_cos_vec], m3
 
     movaps      m7, [inq+64]
-    movaps      m4, [inq+48]
-    shufps      m4, m4, 0x1b
+    LOAD_INV    m4, [inq+48]
     BUTTERFLY   m7, m4, [ps_cos_vec+32], m3
 
     ; pass 2
@@ -427,13 +433,11 @@ cglobal dct32_float_sse, 2,3,16, out, in, tmp
 
     ; pass 1
     movaps      m1, [inq+16]
-    movaps      m6, [inq+96]
-    shufps      m6, m6, 0x1b
+    LOAD_INV    m6, [inq+96]
     BUTTERFLY   m1, m6, [ps_cos_vec+16], m3
 
     movaps      m4, [inq+80]
-    movaps      m5, [inq+32]
-    shufps      m5, m5, 0x1b
+    LOAD_INV    m5, [inq+32]
     BUTTERFLY   m4, m5, [ps_cos_vec+48], m3
 
     ; pass 2
@@ -492,3 +496,20 @@ cglobal dct32_float_sse, 2,3,16, out, in, tmp
     PASS5
     PASS6
     RET
+%endmacro
+
+%macro LOAD_INV_SSE 2
+    movaps      %1, %2
+    shufps      %1, %1, 0x1b
+%endmacro
+
+%define LOAD_INV LOAD_INV_SSE
+DCT32_FUNC sse
+
+%macro LOAD_INV_SSE2 2
+    pshufd      %1, %2, 0x1b
+%endmacro
+
+%define LOAD_INV LOAD_INV_SSE2
+%define BUTTERFLY0 BUTTERFLY0_SSE2
+DCT32_FUNC sse2
diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c
index 18964d88ca..d2d157c2d3 100644
--- a/libavcodec/x86/fft.c
+++ b/libavcodec/x86/fft.c
@@ -60,6 +60,8 @@ av_cold void ff_dct_init_mmx(DCTContext *s)
     int has_vectors = av_get_cpu_flags();
     if (has_vectors & AV_CPU_FLAG_AVX && HAVE_AVX)
         s->dct32 = ff_dct32_float_avx;
+    else if (has_vectors & AV_CPU_FLAG_SSE2 && HAVE_SSE)
+        s->dct32 = ff_dct32_float_sse2;
     else if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE)
         s->dct32 = ff_dct32_float_sse;
 #endif
diff --git a/libavcodec/x86/fft.h b/libavcodec/x86/fft.h
index 79064c27cd..7fdc858a50 100644
--- a/libavcodec/x86/fft.h
+++ b/libavcodec/x86/fft.h
@@ -35,6 +35,7 @@ void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
 void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
 void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input);
 void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in);
 void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
 
 #endif /* AVCODEC_X86_FFT_H */
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 029479152a..59a4240bd3 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -774,6 +774,7 @@ typedef struct AVFormatContext {
 #define AVFMT_FLAG_RTP_HINT     0x0040 ///< Deprecated, use the -movflags rtphint muxer specific AVOption instead
 #endif
 #define AVFMT_FLAG_CUSTOM_IO    0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it.
+#define AVFMT_FLAG_DISCARD_CORRUPT  0x0100 ///< Discard frames marked corrupted
 #define AVFMT_FLAG_MP4A_LATM    0x8000 ///< Enable RTP MP4A-LATM payload
 #define AVFMT_FLAG_SORT_DTS    0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down)
 #define AVFMT_FLAG_PRIV_OPT    0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted)
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 630a42ab00..5daffbb521 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -164,6 +164,7 @@ typedef struct PESContext {
     enum MpegTSState state;
     /* used to get the format */
     int data_index;
+    int flags; /**< copied to the AVPacket flags */
     int total_size;
     int pes_header_size;
     int extended_stream_id;
@@ -636,6 +637,12 @@ static void new_pes_packet(PESContext *pes, AVPacket *pkt)
     pkt->destruct = av_destruct_packet;
     pkt->data = pes->buffer;
     pkt->size = pes->data_index;
+
+    if(pes->total_size != MAX_PES_PAYLOAD &&
+       pes->pes_header_size + pes->data_index != pes->total_size + 6) {
+        av_log(pes->ts, AV_LOG_WARNING, "PES packet size mismatch\n");
+        pes->flags |= AV_PKT_FLAG_CORRUPT;
+    }
     memset(pkt->data+pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
 
     // Separate out the AC3 substream from an HDMV combined TrueHD/AC3 PID
@@ -647,12 +654,14 @@ static void new_pes_packet(PESContext *pes, AVPacket *pkt)
     pkt->dts = pes->dts;
     /* store position of first TS packet of this PES packet */
     pkt->pos = pes->ts_packet_pos;
+    pkt->flags = pes->flags;
 
     /* reset pts values */
     pes->pts = AV_NOPTS_VALUE;
     pes->dts = AV_NOPTS_VALUE;
     pes->buffer = NULL;
     pes->data_index = 0;
+    pes->flags = 0;
 }
 
 /* return non zero if a packet could be constructed */
@@ -1269,7 +1278,8 @@ static int handle_packet(MpegTSContext *ts, const uint8_t *packet)
 {
     AVFormatContext *s = ts->stream;
     MpegTSFilter *tss;
-    int len, pid, cc, expected_cc, cc_ok, afc, is_start;
+    int len, pid, cc, expected_cc, cc_ok, afc, is_start, is_discontinuity,
+        has_adaptation, has_payload;
     const uint8_t *p, *p_end;
     int64_t pos;
 
@@ -1285,20 +1295,36 @@ static int handle_packet(MpegTSContext *ts, const uint8_t *packet)
     if (!tss)
         return 0;
 
+    afc = (packet[3] >> 4) & 3;
+    if (afc == 0) /* reserved value */
+        return 0;
+    has_adaptation = afc & 2;
+    has_payload = afc & 1;
+    is_discontinuity = has_adaptation
+                && packet[4] != 0 /* with length > 0 */
+                && (packet[5] & 0x80); /* and discontinuity indicated */
+
     /* continuity check (currently not used) */
     cc = (packet[3] & 0xf);
-    expected_cc = (packet[3] & 0x10) ? (tss->last_cc + 1) & 0x0f : tss->last_cc;
-    cc_ok = (tss->last_cc < 0) || (expected_cc == cc);
+    expected_cc = has_payload ? (tss->last_cc + 1) & 0x0f : tss->last_cc;
+    cc_ok = pid == 0x1FFF // null packet PID
+            || is_discontinuity
+            || tss->last_cc < 0
+            || expected_cc == cc;
+
     tss->last_cc = cc;
+    if (!cc_ok) {
+        av_log(ts, AV_LOG_WARNING, "Continuity Check Failed\n");
+        if(tss->type == MPEGTS_PES) {
+            PESContext *pc = tss->u.pes_filter.opaque;
+            pc->flags |= AV_PKT_FLAG_CORRUPT;
+        }
+    }
 
-    /* skip adaptation field */
-    afc = (packet[3] >> 4) & 3;
-    p = packet + 4;
-    if (afc == 0) /* reserved value */
+    if (!has_payload)
         return 0;
-    if (afc == 2) /* adaptation field only */
-        return 0;
-    if (afc == 3) {
+    p = packet + 4;
+    if (has_adaptation) {
         /* skip adapation field */
         p += p[0] + 1;
     }
@@ -1399,7 +1425,22 @@ static int handle_packets(MpegTSContext *ts, int nb_packets)
 {
     AVFormatContext *s = ts->stream;
     uint8_t packet[TS_PACKET_SIZE];
-    int packet_num, ret;
+    int packet_num, ret = 0;
+
+    if (avio_tell(s->pb) != ts->last_pos) {
+        int i;
+//        av_dlog("Skipping after seek\n");
+        /* seek detected, flush pes buffer */
+        for (i = 0; i < NB_PID_MAX; i++) {
+            if (ts->pids[i] && ts->pids[i]->type == MPEGTS_PES) {
+                PESContext *pes = ts->pids[i]->u.pes_filter.opaque;
+                av_freep(&pes->buffer);
+                ts->pids[i]->last_cc = -1;
+                pes->data_index = 0;
+                pes->state = MPEGTS_SKIP; /* skip until pes header */
+            }
+        }
+    }
 
     ts->stop_parse = 0;
     packet_num = 0;
@@ -1411,12 +1452,13 @@ static int handle_packets(MpegTSContext *ts, int nb_packets)
             break;
         ret = read_packet(s, packet, ts->raw_packet_size);
         if (ret != 0)
-            return ret;
+            break;
         ret = handle_packet(ts, packet);
         if (ret != 0)
-            return ret;
+            break;
     }
-    return 0;
+    ts->last_pos = avio_tell(s->pb);
+    return ret;
 }
 
 static int mpegts_probe(AVProbeData *p)
@@ -1511,7 +1553,7 @@ static int mpegts_read_header(AVFormatContext *s,
         /* normal demux */
 
         /* first do a scaning to get all the services */
-        if (avio_seek(pb, pos, SEEK_SET) < 0)
+        if (pb->seekable && avio_seek(pb, pos, SEEK_SET) < 0)
             av_log(s, AV_LOG_ERROR, "Unable to seek back to the start\n");
 
         mpegts_open_section_filter(ts, SDT_PID, sdt_cb, ts, 1);
@@ -1632,18 +1674,6 @@ static int mpegts_read_packet(AVFormatContext *s,
     MpegTSContext *ts = s->priv_data;
     int ret, i;
 
-    if (avio_tell(s->pb) != ts->last_pos) {
-        /* seek detected, flush pes buffer */
-        for (i = 0; i < NB_PID_MAX; i++) {
-            if (ts->pids[i] && ts->pids[i]->type == MPEGTS_PES) {
-                PESContext *pes = ts->pids[i]->u.pes_filter.opaque;
-                av_freep(&pes->buffer);
-                pes->data_index = 0;
-                pes->state = MPEGTS_SKIP; /* skip until pes header */
-            }
-        }
-    }
-
     ts->pkt = pkt;
     ret = handle_packets(ts, 0);
     if (ret < 0) {
@@ -1661,8 +1691,6 @@ static int mpegts_read_packet(AVFormatContext *s,
         }
     }
 
-    ts->last_pos = avio_tell(s->pb);
-
     return ret;
 }
 
diff --git a/libavformat/options.c b/libavformat/options.c
index e09fc97a25..fda325c7c7 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -79,6 +79,7 @@ static const AVOption options[]={
 #if FF_API_FLAG_RTP_HINT
 {"rtphint", "add rtp hinting (deprecated, use the -movflags rtphint option instead)", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_RTP_HINT }, INT_MIN, INT_MAX, E, "fflags"},
 #endif
+{"discardcorrupt", "discard corrupted frames", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_DISCARD_CORRUPT }, INT_MIN, INT_MAX, D, "fflags"},
 {"sortdts", "try to interleave outputted packets by dts", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_SORT_DTS }, INT_MIN, INT_MAX, D, "fflags"},
 {"keepside", "dont merge side data", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_KEEP_SIDE_DATA }, INT_MIN, INT_MAX, D, "fflags"},
 {"latm", "enable RTP MP4A-LATM payload", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 81577c9158..aa1220dbbc 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -738,8 +738,17 @@ int av_read_packet(AVFormatContext *s, AVPacket *pkt)
             continue;
         }
 
+        if ((s->flags & AVFMT_FLAG_DISCARD_CORRUPT) &&
+            (pkt->flags & AV_PKT_FLAG_CORRUPT)) {
+            av_log(s, AV_LOG_WARNING,
+                   "Dropped corrupted packet (stream = %d)\n",
+                   pkt->stream_index);
+            continue;
+        }
+
         if(!(s->flags & AVFMT_FLAG_KEEP_SIDE_DATA))
             av_packet_merge_side_data(pkt);
+
         st= s->streams[pkt->stream_index];
 
         switch(st->codec->codec_type){
diff --git a/tests/ref/fate/rv30 b/tests/ref/fate/rv30
index 5b43588bb4..6c99871eb6 100644
--- a/tests/ref/fate/rv30
+++ b/tests/ref/fate/rv30
@@ -16,31 +16,31 @@
 0, 112500, 126720, 0xe572dfc9
 0, 120000, 126720, 0xbc3cc34f
 0, 127500, 126720, 0xcf8cb0e2
-0, 135000, 126720, 0x6d1c630d
-0, 142500, 126720, 0x4338e469
-0, 150000, 126720, 0x9d82ea38
-0, 157500, 126720, 0x55e0b559
-0, 165000, 126720, 0x5eefb5ef
-0, 172500, 126720, 0x4b10b746
-0, 180000, 126720, 0x8b07a1db
-0, 187500, 126720, 0x8c639b34
-0, 195000, 126720, 0x63eb0b9f
-0, 202500, 126720, 0x31c80c83
-0, 210000, 126720, 0x78495352
-0, 217500, 126720, 0x63d609c4
-0, 225000, 126720, 0xcd2a62d8
-0, 232500, 126720, 0x4aea732d
-0, 240000, 126720, 0xe3bb352c
-0, 247500, 126720, 0x4b9036ad
-0, 255000, 126720, 0x88b66e2d
-0, 262500, 126720, 0x4a8a1b16
-0, 270000, 126720, 0x2e014eac
-0, 277500, 126720, 0x83212c67
-0, 285000, 126720, 0x4937e897
-0, 292500, 126720, 0x2d38babe
-0, 300000, 126720, 0xbcb43c09
-0, 307500, 126720, 0x955ffaf4
-0, 315000, 126720, 0x3337d4a2
-0, 322500, 126720, 0xe8f58c33
-0, 330000, 126720, 0x3a7f771f
-0, 337500, 126720, 0xb67c39b9
+0, 135000, 126720, 0x75ae61b6
+0, 142500, 126720, 0x554fe3e4
+0, 150000, 126720, 0x72ecea95
+0, 157500, 126720, 0x5d00b5fe
+0, 165000, 126720, 0xe39bba0d
+0, 172500, 126720, 0x9c21bad8
+0, 180000, 126720, 0x72f2a47d
+0, 187500, 126720, 0x4f639ebe
+0, 195000, 126720, 0x534a10cc
+0, 202500, 126720, 0xfdca11d3
+0, 210000, 126720, 0x0c735615
+0, 217500, 126720, 0x0eaf0c1b
+0, 225000, 126720, 0xce5e6794
+0, 232500, 126720, 0x14cf7974
+0, 240000, 126720, 0xbc513f2a
+0, 247500, 126720, 0xbc303fae
+0, 255000, 126720, 0xd9f67585
+0, 262500, 126720, 0x3378251f
+0, 270000, 126720, 0xb3ed5911
+0, 277500, 126720, 0xc15a3577
+0, 285000, 126720, 0x0a24f256
+0, 292500, 126720, 0xfab9c45d
+0, 300000, 126720, 0x45464610
+0, 307500, 126720, 0xfe2e057d
+0, 315000, 126720, 0x23efdc35
+0, 322500, 126720, 0x4d888b2e
+0, 330000, 126720, 0xdd0d74df
+0, 337500, 126720, 0x08382b8e