Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mp3dec: read Xing frame TOC index
  mp3dec: use named constants for Xing header flags
  libx264: add support for nal-hrd, required for Blu-ray streams.
  mov: support random access point grouping
  matroskadec: properly support BlockDuration

Conflicts:
	libavcodec/libx264.c
	libavformat/isom.h
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/mp3dec.c

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

4 files changed, 128 insertions, 17 deletions

diff --git a/libavformat/isom.h b/libavformat/isom.h
index 6565bdcc17..875c3a9fdf 100644
--- a/libavformat/isom.h
+++ b/libavformat/isom.h
@@ -87,6 +87,11 @@ typedef struct {
     unsigned flags;
 } MOVTrackExt;
 
+typedef struct {
+    unsigned int count;
+    unsigned int index;
+} MOVSbgp;
+
 typedef struct MOVStreamContext {
     AVIOContext *pb;
     int ffindex;          ///< AVStream index
@@ -136,6 +141,8 @@ typedef struct MOVStreamContext {
     uint32_t tmcd_flags;  ///< tmcd track flags
     int64_t track_end;    ///< used for dts generation in fragmented movie files
     int start_pad;        ///< amount of samples to skip due to enc-dec delay
+    unsigned int rap_group_count;
+    MOVSbgp *rap_group;
 } MOVStreamContext;
 
 typedef struct MOVContext {
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index eb34ef4ee9..f4d7071352 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -2146,7 +2146,7 @@ static int matroska_parse_frame(MatroskaDemuxContext *matroska,
 
 static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
                                 int size, int64_t pos, uint64_t cluster_time,
-                                uint64_t duration, int is_keyframe,
+                                uint64_t block_duration, int is_keyframe,
                                 int64_t cluster_pos)
 {
     uint64_t timecode = AV_NOPTS_VALUE;
@@ -2175,7 +2175,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
     st = track->stream;
     if (st->discard >= AVDISCARD_ALL)
         return res;
-    av_assert1(duration != AV_NOPTS_VALUE);
+    av_assert1(block_duration != AV_NOPTS_VALUE);
 
     block_time = AV_RB16(data);
     data += 2;
@@ -2211,14 +2211,15 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
     if (res)
         goto end;
 
-    if (!duration)
-        duration = track->default_duration * laces / matroska->time_scale;
+    if (!block_duration)
+        block_duration = track->default_duration * laces / matroska->time_scale;
 
     if (cluster_time != (uint64_t)-1 && (block_time >= 0 || cluster_time >= -block_time))
-        track->end_timecode = FFMAX(track->end_timecode, timecode+duration);
+        track->end_timecode =
+            FFMAX(track->end_timecode, timecode + block_duration);
 
     for (n = 0; n < laces; n++) {
-        int64_t lace_duration = duration*(n+1) / laces - duration*n / laces;
+        int64_t lace_duration = block_duration*(n+1) / laces - block_duration*n / laces;
 
         if (lace_size[n] > size) {
             av_log(matroska->ctx, AV_LOG_ERROR, "Invalid packet size\n");
@@ -2232,7 +2233,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
              st->codec->block_align && track->audio.sub_packet_size) {
 
             res = matroska_parse_rm_audio(matroska, track, st, data, size,
-                                          timecode, duration, pos);
+                                          timecode, lace_duration, pos);
             if (res)
                 goto end;
 
diff --git a/libavformat/mov.c b/libavformat/mov.c
index c937174ba3..84565c8696 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1879,6 +1879,46 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     return 0;
 }
 
+static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+    AVStream *st;
+    MOVStreamContext *sc;
+    unsigned int i, entries;
+    uint8_t version;
+    uint32_t grouping_type;
+
+    if (c->fc->nb_streams < 1)
+        return 0;
+    st = c->fc->streams[c->fc->nb_streams-1];
+    sc = st->priv_data;
+
+    version = avio_r8(pb); /* version */
+    avio_rb24(pb); /* flags */
+    grouping_type = avio_rl32(pb);
+    if (grouping_type != MKTAG( 'r','a','p',' '))
+        return 0; /* only support 'rap ' grouping */
+    if (version == 1)
+        avio_rb32(pb); /* grouping_type_parameter */
+
+    entries = avio_rb32(pb);
+    if (!entries)
+        return 0;
+    if (entries >= UINT_MAX / sizeof(*sc->rap_group))
+        return AVERROR_INVALIDDATA;
+    sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
+    if (!sc->rap_group)
+        return AVERROR(ENOMEM);
+
+    for (i = 0; i < entries && !pb->eof_reached; i++) {
+        sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
+        sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
+    }
+
+    sc->rap_group_count = i;
+
+    return pb->eof_reached ? AVERROR_EOF : 0;
+}
+
 static void mov_build_index(MOVContext *mov, AVStream *st)
 {
     MOVStreamContext *sc = st->priv_data;
@@ -1914,6 +1954,9 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
         unsigned int stts_sample = 0;
         unsigned int sample_size;
         unsigned int distance = 0;
+        unsigned int rap_group_index = 0;
+        unsigned int rap_group_sample = 0;
+        int rap_group_present = sc->rap_group_count && sc->rap_group;
         int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_data && sc->stps_data[0] > 0);
 
         current_dts -= sc->dts_shift;
@@ -1949,6 +1992,14 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
                     if (stps_index + 1 < sc->stps_count)
                         stps_index++;
                 }
+                if (rap_group_present && rap_group_index < sc->rap_group_count) {
+                    if (sc->rap_group[rap_group_index].index > 0)
+                        keyframe = 1;
+                    if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
+                        rap_group_sample = 0;
+                        rap_group_index++;
+                    }
+                }
                 if (keyframe)
                     distance = 0;
                 sample_size = sc->alt_sample_size > 0 ? sc->alt_sample_size : sc->sample_sizes[current_sample];
@@ -2204,6 +2255,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     av_freep(&sc->keyframes);
     av_freep(&sc->stts_data);
     av_freep(&sc->stps_data);
+    av_freep(&sc->rap_group);
 
     return 0;
 }
@@ -2704,6 +2756,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('c','m','o','v'), mov_read_cmov },
 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
 { MKTAG('d','v','c','1'), mov_read_dvc1 },
+{ MKTAG('s','b','g','p'), mov_read_sbgp },
 { 0, NULL }
 };
 
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 5bd0e9648b..db01cd2081 100644
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -29,6 +29,12 @@
 #include "id3v1.h"
 #include "libavcodec/mpegaudiodecheader.h"
 
+#define XING_FLAG_FRAMES 0x01
+#define XING_FLAG_SIZE   0x02
+#define XING_FLAG_TOC    0x04
+
+#define XING_TOC_COUNT 100
+
 typedef struct {
     int64_t filesize;
     int start_pad;
@@ -79,6 +85,26 @@ static int mp3_read_probe(AVProbeData *p)
 //mpegps_mp3_unrecognized_format.mpg has max_frames=3
 }
 
+static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration)
+{
+    int i;
+
+    if (!filesize &&
+        !(filesize = avio_size(s->pb))) {
+        av_log(s, AV_LOG_WARNING, "Cannot determine file size, skipping TOC table.\n");
+        return;
+    }
+
+    for (i = 0; i < XING_TOC_COUNT; i++) {
+        uint8_t b = avio_r8(s->pb);
+
+        av_add_index_entry(s->streams[0],
+                           av_rescale(b, filesize, 256),
+                           av_rescale(i, duration, XING_TOC_COUNT),
+                           0, 0, AVINDEX_KEYFRAME);
+    }
+}
+
 /**
  * Try to find Xing/Info/VBRI tags and compute duration from info therein
  */
@@ -101,17 +127,20 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
     if(c.layer != 3)
         return -1;
 
+    spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */
+
     /* Check for Xing / Info tag */
     avio_skip(s->pb, xing_offtbl[c.lsf == 1][c.nb_channels == 1]);
     v = avio_rb32(s->pb);
     if(v == MKBETAG('X', 'i', 'n', 'g') || v == MKBETAG('I', 'n', 'f', 'o')) {
         v = avio_rb32(s->pb);
-        if(v & 0x1)
+        if(v & XING_FLAG_FRAMES)
             frames = avio_rb32(s->pb);
-        if(v & 0x2)
+        if(v & XING_FLAG_SIZE)
             size = avio_rb32(s->pb);
-        if(v & 4)
-            avio_skip(s->pb, 100);
+        if (v & XING_FLAG_TOC && frames)
+            read_xing_toc(s, size, av_rescale_q(frames, (AVRational){spf, c.sample_rate},
+                                    st->time_base));
         if(v & 8)
             avio_skip(s->pb, 4);
 
@@ -145,7 +174,6 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
     /* Skip the vbr tag frame */
     avio_seek(s->pb, base + vbrtag_size, SEEK_SET);
 
-    spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */
     if(frames)
         st->duration = av_rescale_q(frames, (AVRational){spf, c.sample_rate},
                                     st->time_base);
@@ -222,14 +250,36 @@ static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
     return ret;
 }
 
-static int read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
+static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
+                    int flags)
 {
     MP3Context *mp3 = s->priv_data;
-    AVStream *st = s->streams[stream_index];
+    AVIndexEntry *ie;
+    AVStream *st = s->streams[0];
+    int64_t ret  = av_index_search_timestamp(st, timestamp, flags);
+    uint32_t header = 0;
+
+    if (ret < 0)
+        return ret;
+
+    ie = &st->index_entries[ret];
+    ret = avio_seek(s->pb, ie->pos, SEEK_SET);
+    if (ret < 0)
+        return ret;
 
-    st->skip_samples = timestamp <= 0 ? mp3->start_pad + 528 + 1 : 0;
+    while (!s->pb->eof_reached) {
+        header = (header << 8) + avio_r8(s->pb);
+        if (ff_mpa_check_header(header) >= 0) {
+            ff_update_cur_dts(s, st, ie->timestamp);
+            ret = avio_seek(s->pb, -4, SEEK_CUR);
+
+            st->skip_samples = ie->timestamp <= 0 ? mp3->start_pad + 528 + 1 : 0;
+
+            return (ret >= 0) ? 0 : ret;
+        }
+    }
 
-    return -1;
+    return AVERROR_EOF;
 }
 
 AVInputFormat ff_mp3_demuxer = {
@@ -239,7 +289,7 @@ AVInputFormat ff_mp3_demuxer = {
     .read_probe     = mp3_read_probe,
     .read_header    = mp3_read_header,
     .read_packet    = mp3_read_packet,
-    .read_seek      = read_seek,
+    .read_seek      = mp3_seek,
     .flags          = AVFMT_GENERIC_INDEX,
     .extensions     = "mp2,mp3,m2a", /* XXX: use probe */
 };