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[188.192.142.35]) by smtp.gmail.com with ESMTPSA id q15sm5855005wmq.0.2019.11.26.21.44.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Nov 2019 21:44:27 -0800 (PST) From: Andreas Rheinhardt To: ffmpeg-devel@ffmpeg.org Date: Wed, 27 Nov 2019 06:44:22 +0100 Message-Id: <20191127054422.20023-1-andreas.rheinhardt@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191106024922.19228-6-andreas.rheinhardt@gmail.com> References: <20191106024922.19228-6-andreas.rheinhardt@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH v2] avformat/matroskaenc: Avoid allocations for seekheads X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Andreas Rheinhardt Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Up until e7ddafd5, the Matroska muxer wrote two seekheads: One at the beginning referencing the main level 1 elements (i.e. not the clusters) and one at the end, referencing the clusters. This second seekhead was useless and has therefore been removed. Yet the seekhead-related functions and structures are still geared towards this usecase: They are built around an allocated array of variable size that gets reallocated every time an element is added to it although the maximum number of seekheads is a small compile-time constant, so that one should rather include the array in the seekhead structure itself; and said structure should be contained in the MatroskaMuxContext instead of being allocated separately. The earlier code reserved space for a SeekHead with 10 entries, although we currently write at most 6. Reducing said number implied that every Matroska/Webm file will be 84 bytes smaller and required to adapt several FATE tests. Signed-off-by: Andreas Rheinhardt --- Resending because of updated FATE-tests. libavformat/matroskaenc.c | 113 ++++++++------------------- tests/fate/matroska.mak | 2 +- tests/fate/wavpack.mak | 4 +- tests/ref/fate/aac-autobsf-adtstoasc | 4 +- tests/ref/fate/binsub-mksenc | 2 +- tests/ref/fate/rgb24-mkv | 4 +- tests/ref/lavf/mka | 4 +- tests/ref/lavf/mkv | 4 +- tests/ref/lavf/mkv_attachment | 4 +- tests/ref/seek/lavf-mkv | 44 +++++------ 10 files changed, 67 insertions(+), 118 deletions(-) diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c index 31ea1800b3..b60908a587 100644 --- a/libavformat/matroskaenc.c +++ b/libavformat/matroskaenc.c @@ -56,6 +56,10 @@ #include "libavcodec/mpeg4audio.h" #include "libavcodec/internal.h" +/* Level 1 elements we create a SeekHead entry for: + * Info, Tracks, Chapters, Attachments, Tags and Cues */ +#define MAX_SEEKHEAD_ENTRIES 6 + typedef struct ebml_master { int64_t pos; ///< absolute offset in the containing AVIOContext where the master's elements start int sizebytes; ///< how many bytes were reserved for the size @@ -68,11 +72,9 @@ typedef struct mkv_seekhead_entry { typedef struct mkv_seekhead { int64_t filepos; - int64_t segment_offset; ///< the file offset to the beginning of the segment - int reserved_size; ///< -1 if appending to file - int max_entries; - mkv_seekhead_entry *entries; + mkv_seekhead_entry entries[MAX_SEEKHEAD_ENTRIES]; int num_entries; + int reserved_size; } mkv_seekhead; typedef struct mkv_cuepoint { @@ -126,7 +128,7 @@ typedef struct MatroskaMuxContext { int64_t cluster_pts; int64_t duration_offset; int64_t duration; - mkv_seekhead *seekhead; + mkv_seekhead seekhead; mkv_cues *cues; mkv_track *tracks; @@ -398,10 +400,6 @@ static void mkv_deinit(AVFormatContext *s) ffio_free_dyn_buf(&mkv->tracks_bc); ffio_free_dyn_buf(&mkv->tags_bc); - if (mkv->seekhead) { - av_freep(&mkv->seekhead->entries); - av_freep(&mkv->seekhead); - } if (mkv->cues) { av_freep(&mkv->cues->entries); av_freep(&mkv->cues); @@ -410,61 +408,32 @@ static void mkv_deinit(AVFormatContext *s) } /** - * Initialize a mkv_seekhead element to be ready to index level 1 Matroska - * elements. If a maximum number of elements is specified, enough space - * will be reserved at the current file location to write a seek head of - * that size. - * - * @param segment_offset The absolute offset to the position in the file - * where the segment begins. - * @param numelements The maximum number of elements that will be indexed - * by this seek head, 0 if unlimited. + * Initialize the seekhead element to be ready to index level 1 Matroska + * elements. Enough space to write MAX_SEEKHEAD_ENTRIES seekhead entries + * will be reserved at the current file location. */ -static mkv_seekhead *mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset, - int numelements) +static void mkv_start_seekhead(MatroskaMuxContext *mkv, AVIOContext *pb) { - mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead)); - if (!new_seekhead) - return NULL; - - new_seekhead->segment_offset = segment_offset; - - if (numelements > 0) { - new_seekhead->filepos = avio_tell(pb); + mkv->seekhead.filepos = avio_tell(pb); // 21 bytes max for a seek entry, 10 bytes max for the SeekHead ID // and size, 6 bytes for a CRC32 element, and 3 bytes to guarantee // that an EBML void element will fit afterwards - new_seekhead->reserved_size = numelements * MAX_SEEKENTRY_SIZE + 19; - new_seekhead->max_entries = numelements; - put_ebml_void(pb, new_seekhead->reserved_size); - } - return new_seekhead; + mkv->seekhead.reserved_size = MAX_SEEKHEAD_ENTRIES * MAX_SEEKENTRY_SIZE + 19; + put_ebml_void(pb, mkv->seekhead.reserved_size); } -static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, uint32_t elementid, uint64_t filepos) +static void mkv_add_seekhead_entry(MatroskaMuxContext *mkv, uint32_t elementid, uint64_t filepos) { - mkv_seekhead_entry *entries = seekhead->entries; + mkv_seekhead *seekhead = &mkv->seekhead; - // don't store more elements than we reserved space for - if (seekhead->max_entries > 0 && seekhead->max_entries <= seekhead->num_entries) - return -1; - - entries = av_realloc_array(entries, seekhead->num_entries + 1, sizeof(mkv_seekhead_entry)); - if (!entries) - return AVERROR(ENOMEM); - seekhead->entries = entries; + av_assert1(seekhead->num_entries < MAX_SEEKHEAD_ENTRIES); seekhead->entries[seekhead->num_entries].elementid = elementid; - seekhead->entries[seekhead->num_entries++].segmentpos = filepos - seekhead->segment_offset; - - return 0; + seekhead->entries[seekhead->num_entries++].segmentpos = filepos - mkv->segment_offset; } /** - * Write the seek head to the file and free it. If a maximum number of - * elements was specified to mkv_start_seekhead(), the seek head will - * be written at the location reserved for it. Otherwise, it is written - * at the current location in the file. + * Write the seek head to the file at the location reserved for it. * * @return The file offset where the seekhead was written, * -1 if an error occurred. @@ -472,19 +441,17 @@ static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, uint32_t elementid, ui static int64_t mkv_write_seekhead(AVIOContext *pb, MatroskaMuxContext *mkv) { AVIOContext *dyn_cp; - mkv_seekhead *seekhead = mkv->seekhead; + mkv_seekhead *seekhead = &mkv->seekhead; ebml_master seekentry; - int64_t currentpos; + int64_t currentpos, remaining; int i; currentpos = avio_tell(pb); - if (seekhead->reserved_size > 0) { if (avio_seek(pb, seekhead->filepos, SEEK_SET) < 0) { currentpos = -1; goto fail; } - } if (start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_SEEKHEAD) < 0) { currentpos = -1; @@ -505,17 +472,13 @@ static int64_t mkv_write_seekhead(AVIOContext *pb, MatroskaMuxContext *mkv) } end_ebml_master_crc32(pb, &dyn_cp, mkv); - if (seekhead->reserved_size > 0) { - uint64_t remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb); + remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb); put_ebml_void(pb, remaining); avio_seek(pb, currentpos, SEEK_SET); currentpos = seekhead->filepos; - } -fail: - av_freep(&mkv->seekhead->entries); - av_freep(&mkv->seekhead); +fail: return currentpos; } @@ -1434,9 +1397,7 @@ static int mkv_write_tracks(AVFormatContext *s) AVIOContext *pb = s->pb; int i, ret, default_stream_exists = 0; - ret = mkv_add_seekhead_entry(mkv->seekhead, MATROSKA_ID_TRACKS, avio_tell(pb)); - if (ret < 0) - return ret; + mkv_add_seekhead_entry(mkv, MATROSKA_ID_TRACKS, avio_tell(pb)); ret = start_ebml_master_crc32(pb, &mkv->tracks_bc, mkv, MATROSKA_ID_TRACKS); if (ret < 0) @@ -1471,8 +1432,7 @@ static int mkv_write_chapters(AVFormatContext *s) if (!s->nb_chapters || mkv->wrote_chapters) return 0; - ret = mkv_add_seekhead_entry(mkv->seekhead, MATROSKA_ID_CHAPTERS, avio_tell(pb)); - if (ret < 0) return ret; + mkv_add_seekhead_entry(mkv, MATROSKA_ID_CHAPTERS, avio_tell(pb)); ret = start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CHAPTERS); if (ret < 0) return ret; @@ -1562,8 +1522,7 @@ static int mkv_write_tag_targets(AVFormatContext *s, uint32_t elementid, int ret; if (!mkv->tags_bc) { - ret = mkv_add_seekhead_entry(mkv->seekhead, MATROSKA_ID_TAGS, avio_tell(s->pb)); - if (ret < 0) return ret; + mkv_add_seekhead_entry(mkv, MATROSKA_ID_TAGS, avio_tell(s->pb)); ret = start_ebml_master_crc32(s->pb, &mkv->tags_bc, mkv, MATROSKA_ID_TAGS); if (ret < 0) @@ -1732,8 +1691,7 @@ static int mkv_write_attachments(AVFormatContext *s) if (!mkv->have_attachments) return 0; - ret = mkv_add_seekhead_entry(mkv->seekhead, MATROSKA_ID_ATTACHMENTS, avio_tell(pb)); - if (ret < 0) return ret; + mkv_add_seekhead_entry(mkv, MATROSKA_ID_ATTACHMENTS, avio_tell(pb)); ret = start_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_ATTACHMENTS); if (ret < 0) return ret; @@ -1853,16 +1811,10 @@ static int mkv_write_header(AVFormatContext *s) mkv->segment_offset = avio_tell(pb); // we write a seek head at the beginning to point to all other level - // one elements, which aren't more than 10 elements as we write only one - // of every other currently defined level 1 element - mkv->seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 10); - if (!mkv->seekhead) { - return AVERROR(ENOMEM); - } + // one elements (except clusters). + mkv_start_seekhead(mkv, pb); - ret = mkv_add_seekhead_entry(mkv->seekhead, MATROSKA_ID_INFO, avio_tell(pb)); - if (ret < 0) - return ret; + mkv_add_seekhead_entry(mkv, MATROSKA_ID_INFO, avio_tell(pb)); ret = start_ebml_master_crc32(pb, &mkv->info_bc, mkv, MATROSKA_ID_INFO); if (ret < 0) @@ -2544,10 +2496,7 @@ static int mkv_write_trailer(AVFormatContext *s) cuespos = mkv_write_cues(s, mkv->cues, mkv->tracks, s->nb_streams); } - ret = mkv_add_seekhead_entry(mkv->seekhead, MATROSKA_ID_CUES, - cuespos); - if (ret < 0) - return ret; + mkv_add_seekhead_entry(mkv, MATROSKA_ID_CUES, cuespos); } mkv_write_seekhead(pb, mkv); diff --git a/tests/fate/matroska.mak b/tests/fate/matroska.mak index 7c48de1a61..ee5878aace 100644 --- a/tests/fate/matroska.mak +++ b/tests/fate/matroska.mak @@ -4,7 +4,7 @@ FATE_MATROSKA-$(call DEMMUX, MATROSKA, MATROSKA) += fate-matroska-remux fate-matroska-remux: CMD = md5pipe -i $(TARGET_SAMPLES)/vp9-test-vectors/vp90-2-2pass-akiyo.webm -color_trc 4 -c:v copy -fflags +bitexact -strict -2 -f matroska fate-matroska-remux: CMP = oneline -fate-matroska-remux: REF = 5ae8144848acd392eaca8d43ff4aa5e6 +fate-matroska-remux: REF = 14319f0bd1989b98945337246c8eb9b4 FATE_MATROSKA_FFPROBE-$(call ALLYES, MATROSKA_DEMUXER) += fate-matroska-spherical-mono fate-matroska-spherical-mono: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_entries stream_side_data_list -select_streams v -v 0 $(TARGET_SAMPLES)/mkv/spherical.mkv diff --git a/tests/fate/wavpack.mak b/tests/fate/wavpack.mak index b7bb563802..9beaec188d 100644 --- a/tests/fate/wavpack.mak +++ b/tests/fate/wavpack.mak @@ -91,12 +91,12 @@ fate-wavpack-matroskamode: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/special/matros FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-mono fate-wavpack-matroska_mux-mono: CMD = md5pipe -i $(TARGET_SAMPLES)/wavpack/num_channels/mono_16bit_int.wv -c copy -fflags +bitexact -f matroska fate-wavpack-matroska_mux-mono: CMP = oneline -fate-wavpack-matroska_mux-mono: REF = ed8bf42aad172ec8e0ecc906e2fa27e6 +fate-wavpack-matroska_mux-mono: REF = 9108dd5afb464a190e9a8a651f2c837d FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-61 fate-wavpack-matroska_mux-61: CMD = md5pipe -i $(TARGET_SAMPLES)/wavpack/num_channels/eva_2.22_6.1_16bit-partial.wv -c copy -fflags +bitexact -f matroska fate-wavpack-matroska_mux-61: CMP = oneline -fate-wavpack-matroska_mux-61: REF = 425d2f82a22b86e4a8a71c2319284780 +fate-wavpack-matroska_mux-61: REF = 7de5d61441b6e69f88cde309052c674a FATE_SAMPLES_AVCONV += $(FATE_WAVPACK-yes) fate-wavpack: $(FATE_WAVPACK-yes) diff --git a/tests/ref/fate/aac-autobsf-adtstoasc b/tests/ref/fate/aac-autobsf-adtstoasc index edae3e6423..311af5d5fa 100644 --- a/tests/ref/fate/aac-autobsf-adtstoasc +++ b/tests/ref/fate/aac-autobsf-adtstoasc @@ -1,5 +1,5 @@ -ad50ade359efa0321c9111a08edada28 *tests/data/fate/aac-autobsf-adtstoasc.matroska -6709 tests/data/fate/aac-autobsf-adtstoasc.matroska +64fef0158181534b35c716e89663df3a *tests/data/fate/aac-autobsf-adtstoasc.matroska +6625 tests/data/fate/aac-autobsf-adtstoasc.matroska #extradata 0: 2, 0x0030001c #tb 0: 1/1000 #media_type 0: audio diff --git a/tests/ref/fate/binsub-mksenc b/tests/ref/fate/binsub-mksenc index 9c2c3ea9bc..5eea19552e 100644 --- a/tests/ref/fate/binsub-mksenc +++ b/tests/ref/fate/binsub-mksenc @@ -1 +1 @@ -0248927de98ee861f626bd26ed61f9a0 +10f6efe9c120c9d2edb565fe13037488 diff --git a/tests/ref/fate/rgb24-mkv b/tests/ref/fate/rgb24-mkv index 57e812e48b..7ce09a967e 100644 --- a/tests/ref/fate/rgb24-mkv +++ b/tests/ref/fate/rgb24-mkv @@ -1,5 +1,5 @@ -00bd029ef542bf0eae4bd7c3480bff2a *tests/data/fate/rgb24-mkv.matroska -58326 tests/data/fate/rgb24-mkv.matroska +5ad0f72ea98538a361ee22be58e36694 *tests/data/fate/rgb24-mkv.matroska +58242 tests/data/fate/rgb24-mkv.matroska #tb 0: 1/10 #media_type 0: video #codec_id 0: rawvideo diff --git a/tests/ref/lavf/mka b/tests/ref/lavf/mka index f5f8db1598..39b5cb691e 100644 --- a/tests/ref/lavf/mka +++ b/tests/ref/lavf/mka @@ -1,3 +1,3 @@ -4184b7103e80e40e477b9c04b7360fc8 *tests/data/lavf/lavf.mka -43673 tests/data/lavf/lavf.mka +60eab6452def8ae6357fcc93f9e1c34b *tests/data/lavf/lavf.mka +43589 tests/data/lavf/lavf.mka tests/data/lavf/lavf.mka CRC=0x3a1da17e diff --git a/tests/ref/lavf/mkv b/tests/ref/lavf/mkv index d9bdf98176..d93659ea83 100644 --- a/tests/ref/lavf/mkv +++ b/tests/ref/lavf/mkv @@ -1,3 +1,3 @@ -03d729410856242aaedcbd8c6f71d97e *tests/data/lavf/lavf.mkv -320597 tests/data/lavf/lavf.mkv +75fab2bc491e9ff57c7dd41d9b79b962 *tests/data/lavf/lavf.mkv +320513 tests/data/lavf/lavf.mkv tests/data/lavf/lavf.mkv CRC=0xec6c3c68 diff --git a/tests/ref/lavf/mkv_attachment b/tests/ref/lavf/mkv_attachment index 809975da50..97fa449d09 100644 --- a/tests/ref/lavf/mkv_attachment +++ b/tests/ref/lavf/mkv_attachment @@ -1,3 +1,3 @@ -bcc4ace0ebdfd0eade8cb490d99185e5 *tests/data/lavf/lavf.mkv_attachment -472752 tests/data/lavf/lavf.mkv_attachment +b96896c281ad5873cf8e921a0b67cc94 *tests/data/lavf/lavf.mkv_attachment +472668 tests/data/lavf/lavf.mkv_attachment tests/data/lavf/lavf.mkv_attachment CRC=0xec6c3c68 diff --git a/tests/ref/seek/lavf-mkv b/tests/ref/seek/lavf-mkv index 8434aae988..d48a80c6a3 100644 --- a/tests/ref/seek/lavf-mkv +++ b/tests/ref/seek/lavf-mkv @@ -1,48 +1,48 @@ -ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 845 size: 208 +ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 761 size: 208 ret: 0 st:-1 flags:0 ts:-1.000000 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837 ret: 0 st:-1 flags:1 ts: 1.894167 -ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292477 size: 27834 +ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292393 size: 27834 ret: 0 st: 0 flags:0 ts: 0.788000 -ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292477 size: 27834 +ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292393 size: 27834 ret: 0 st: 0 flags:1 ts:-0.317000 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837 ret:-1 st: 1 flags:0 ts: 2.577000 ret: 0 st: 1 flags:1 ts: 1.471000 -ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320318 size: 209 +ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320234 size: 209 ret: 0 st:-1 flags:0 ts: 0.365002 -ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147029 size: 27925 +ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146945 size: 27925 ret: 0 st:-1 flags:1 ts:-0.740831 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837 ret:-1 st: 0 flags:0 ts: 2.153000 ret: 0 st: 0 flags:1 ts: 1.048000 -ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292477 size: 27834 +ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292393 size: 27834 ret: 0 st: 1 flags:0 ts:-0.058000 -ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 845 size: 208 +ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 761 size: 208 ret: 0 st: 1 flags:1 ts: 2.836000 -ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320318 size: 209 +ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320234 size: 209 ret:-1 st:-1 flags:0 ts: 1.730004 ret: 0 st:-1 flags:1 ts: 0.624171 -ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147029 size: 27925 +ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146945 size: 27925 ret: 0 st: 0 flags:0 ts:-0.482000 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837 ret: 0 st: 0 flags:1 ts: 2.413000 -ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292477 size: 27834 +ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292393 size: 27834 ret:-1 st: 1 flags:0 ts: 1.307000 ret: 0 st: 1 flags:1 ts: 0.201000 -ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 845 size: 208 +ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 761 size: 208 ret: 0 st:-1 flags:0 ts:-0.904994 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837 ret: 0 st:-1 flags:1 ts: 1.989173 -ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292477 size: 27834 +ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292393 size: 27834 ret: 0 st: 0 flags:0 ts: 0.883000 -ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292477 size: 27834 +ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292393 size: 27834 ret: 0 st: 0 flags:1 ts:-0.222000 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837 ret:-1 st: 1 flags:0 ts: 2.672000 ret: 0 st: 1 flags:1 ts: 1.566000 -ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320318 size: 209 +ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320234 size: 209 ret: 0 st:-1 flags:0 ts: 0.460008 -ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 147029 size: 27925 +ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146945 size: 27925 ret: 0 st:-1 flags:1 ts:-0.645825 -ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1061 size: 27837 +ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 977 size: 27837