ref: 80577dff4b409c30c7bb638a561787ec2c0a0210
parent: 88690475ea28fb396c8efb01ab6d21e106765341
author: Paul Wilkins <paulwilkins@google.com>
date: Wed Apr 2 00:08:18 EDT 2014
Revert "Changing webmenc to use libwebm" Temporary revert. Problems with conflicting definitions of type off_t in MSVC builds that need resolving. c:\Program Files (x86)\ Microsoft Visual Studio 9.0\VC\include\wchar.h(479) : "error C2371: 'off_t' : redefinition; different basic types c:\on2experimental\libvpx\tools_common.h(26) : see declaration of 'off_t'" This reverts commit 92a4c591122fa406a1d7aed834a5283a86d9758a. Change-Id: I535e40a18842a92e3e6e0b29e5fba66313010803
--- a/build/make/Makefile
+++ b/build/make/Makefile
@@ -147,15 +147,6 @@
$(if $(quiet),@echo " [CXX] $@")
$(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -c -o $@ $<
-$(BUILD_PFX)%.cpp.d: %.cpp
- $(if $(quiet),@echo " [DEP] $@")
- $(qexec)mkdir -p $(dir $@)
- $(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -M $< | $(fmt_deps) > $@
-
-$(BUILD_PFX)%.cpp.o: %.cpp
- $(if $(quiet),@echo " [CXX] $@")
- $(qexec)$(CXX) $(INTERNAL_CFLAGS) $(CXXFLAGS) -c -o $@ $<
-
$(BUILD_PFX)%.asm.d: %.asm
$(if $(quiet),@echo " [DEP] $@")
$(qexec)mkdir -p $(dir $@)
@@ -227,7 +218,7 @@
find_file1=$(word 1,$(wildcard $(subst //,/,$(addsuffix /$(1),$(2)))))
find_file=$(foreach f,$(1),$(call find_file1,$(strip $(f)),$(strip $(2))) )
-obj_pats=.c=.c.o $(AS_SFX)=$(AS_SFX).o .cc=.cc.o .cpp=.cpp.o
+obj_pats=.c=.c.o $(AS_SFX)=$(AS_SFX).o .cc=.cc.o
objs=$(addprefix $(BUILD_PFX),$(foreach p,$(obj_pats),$(filter %.o,$(1:$(p))) ))
install_map_templates=$(eval $(call install_map_template,$(1),$(2)))
--- a/configure
+++ b/configure
@@ -704,11 +704,13 @@
enabled postproc || die "postproc_visualizer requires postproc to be enabled"
fi
+ # Enable WebM IO by default.
+ soft_enable webm_io
+
# Enable unit tests by default if we have a working C++ compiler.
case "$toolchain" in
*-vs*)
soft_enable unit_tests
- soft_enable webm_io
;;
*-android-*)
# GTestLog must be modified to use Android logging utilities.
@@ -724,21 +726,13 @@
check_cxx "$@" <<EOF && soft_enable unit_tests
int z;
EOF
- check_cxx "$@" <<EOF && soft_enable webm_io
-int z;
-EOF
;;
*)
enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
int z;
EOF
- check_cxx "$@" <<EOF && soft_enable webm_io
-int z;
-EOF
;;
esac
- # libwebm needs to be linked with C++ standard library
- enabled webm_io && LD=${CXX}}
--- a/examples.mk
+++ b/examples.mk
@@ -15,16 +15,6 @@
third_party/libyuv/source/scale.c \
third_party/libyuv/source/cpu_id.c
-LIBWEBM_MUXER_SRCS += third_party/libwebm/mkvmuxer.cpp \
- third_party/libwebm/mkvmuxerutil.cpp \
- third_party/libwebm/mkvwriter.cpp \
- third_party/libwebm/mkvmuxer.hpp \
- third_party/libwebm/mkvmuxertypes.hpp \
- third_party/libwebm/mkvmuxerutil.hpp \
- third_party/libwebm/mkvparser.hpp \
- third_party/libwebm/mkvwriter.hpp \
- third_party/libwebm/webmids.hpp
-
# List of examples to build. UTILS are tools meant for distribution
# while EXAMPLES demonstrate specific portions of the API.
UTILS-$(CONFIG_DECODERS) += vpxdec.c
@@ -63,8 +53,10 @@
vpxenc.SRCS += vpxstats.c vpxstats.h
vpxenc.SRCS += $(LIBYUV_SRCS)
ifeq ($(CONFIG_WEBM_IO),yes)
- vpxenc.SRCS += $(LIBWEBM_MUXER_SRCS)
- vpxenc.SRCS += webmenc.cc webmenc.h
+ vpxenc.SRCS += third_party/libmkv/EbmlIDs.h
+ vpxenc.SRCS += third_party/libmkv/EbmlWriter.c
+ vpxenc.SRCS += third_party/libmkv/EbmlWriter.h
+ vpxenc.SRCS += webmenc.c webmenc.h
endif
vpxenc.GUID = 548DEC74-7A15-4B2B-AFC3-AA102E7C25C1
vpxenc.DESCRIPTION = Full featured encoder
--- a/vpxenc.c
+++ b/vpxenc.c
@@ -123,6 +123,55 @@
return 0;
}
+#if CONFIG_WEBM_IO
+/* Murmur hash derived from public domain reference implementation at
+ * http:// sites.google.com/site/murmurhash/
+ */
+static unsigned int murmur(const void *key, int len, unsigned int seed) {+ const unsigned int m = 0x5bd1e995;
+ const int r = 24;
+
+ unsigned int h = seed ^ len;
+
+ const unsigned char *data = (const unsigned char *)key;
+
+ while (len >= 4) {+ unsigned int k;
+
+ k = (unsigned int)data[0];
+ k |= (unsigned int)data[1] << 8;
+ k |= (unsigned int)data[2] << 16;
+ k |= (unsigned int)data[3] << 24;
+
+ k *= m;
+ k ^= k >> r;
+ k *= m;
+
+ h *= m;
+ h ^= k;
+
+ data += 4;
+ len -= 4;
+ }
+
+ switch (len) {+ case 3:
+ h ^= data[2] << 16;
+ case 2:
+ h ^= data[1] << 8;
+ case 1:
+ h ^= data[0];
+ h *= m;
+ };
+
+ h ^= h >> 13;
+ h *= m;
+ h ^= h >> 15;
+
+ return h;
+}
+#endif // CONFIG_WEBM_IO
+
static const arg_def_t debugmode = ARG_DEF("D", "debug", 0,"Debug mode (makes output deterministic)");
static const arg_def_t outputfile = ARG_DEF("o", "output", 1,@@ -565,6 +614,7 @@
FILE *file;
struct rate_hist *rate_hist;
struct EbmlGlobal ebml;
+ uint32_t hash;
uint64_t psnr_sse_total;
uint64_t psnr_samples_total;
double psnr_totals[4];
@@ -786,9 +836,7 @@
stream->config.stereo_fmt = STEREO_FORMAT_MONO;
stream->config.write_webm = 1;
#if CONFIG_WEBM_IO
- stream->ebml.last_pts_ns = -1;
- stream->ebml.writer = NULL;
- stream->ebml.segment = NULL;
+ stream->ebml.last_pts_ms = -1;
#endif
/* Allows removal of the application version from the EBML tags */
@@ -1123,7 +1171,9 @@
#if CONFIG_WEBM_IO
if (stream->config.write_webm) {- write_webm_file_footer(&stream->ebml);
+ write_webm_file_footer(&stream->ebml, stream->hash);
+ free(stream->ebml.cue_list);
+ stream->ebml.cue_list = NULL;
}
#endif
@@ -1279,6 +1329,12 @@
update_rate_histogram(stream->rate_hist, cfg, pkt);
#if CONFIG_WEBM_IO
if (stream->config.write_webm) {+ /* Update the hash */
+ if (!stream->ebml.debug)
+ stream->hash = murmur(pkt->data.frame.buf,
+ (int)pkt->data.frame.sz,
+ stream->hash);
+
write_webm_block(&stream->ebml, cfg, pkt);
}
#endif
--- /dev/null
+++ b/webmenc.c
@@ -1,0 +1,331 @@
+/*
+ * Copyright (c) 2013 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+#include "webmenc.h"
+
+#include <limits.h>
+#include <string.h>
+
+#include "third_party/libmkv/EbmlWriter.h"
+#include "third_party/libmkv/EbmlIDs.h"
+
+void Ebml_Write(struct EbmlGlobal *glob,
+ const void *buffer_in,
+ unsigned long len) {+ (void) fwrite(buffer_in, 1, len, glob->stream);
+}
+
+#define WRITE_BUFFER(s) \
+for (i = len - 1; i >= 0; i--) { \+ x = (char)(*(const s *)buffer_in >> (i * CHAR_BIT)); \
+ Ebml_Write(glob, &x, 1); \
+}
+
+void Ebml_Serialize(struct EbmlGlobal *glob,
+ const void *buffer_in,
+ int buffer_size,
+ unsigned long len) {+ char x;
+ int i;
+
+ /* buffer_size:
+ * 1 - int8_t;
+ * 2 - int16_t;
+ * 3 - int32_t;
+ * 4 - int64_t;
+ */
+ switch (buffer_size) {+ case 1:
+ WRITE_BUFFER(int8_t)
+ break;
+ case 2:
+ WRITE_BUFFER(int16_t)
+ break;
+ case 4:
+ WRITE_BUFFER(int32_t)
+ break;
+ case 8:
+ WRITE_BUFFER(int64_t)
+ break;
+ default:
+ break;
+ }
+}
+#undef WRITE_BUFFER
+
+/* Need a fixed size serializer for the track ID. libmkv provides a 64 bit
+ * one, but not a 32 bit one.
+ */
+static void Ebml_SerializeUnsigned32(struct EbmlGlobal *glob,
+ unsigned int class_id,
+ uint64_t ui) {+ const unsigned char sizeSerialized = 4 | 0x80;
+ Ebml_WriteID(glob, class_id);
+ Ebml_Serialize(glob, &sizeSerialized, sizeof(sizeSerialized), 1);
+ Ebml_Serialize(glob, &ui, sizeof(ui), 4);
+}
+
+static void Ebml_StartSubElement(struct EbmlGlobal *glob,
+ EbmlLoc *ebmlLoc,
+ unsigned int class_id) {+ const uint64_t kEbmlUnknownLength = LITERALU64(0x01FFFFFF, 0xFFFFFFFF);
+ Ebml_WriteID(glob, class_id);
+ *ebmlLoc = ftello(glob->stream);
+ Ebml_Serialize(glob, &kEbmlUnknownLength, sizeof(kEbmlUnknownLength), 8);
+}
+
+static void Ebml_EndSubElement(struct EbmlGlobal *glob, EbmlLoc *ebmlLoc) {+ off_t pos;
+ uint64_t size;
+
+ /* Save the current stream pointer. */
+ pos = ftello(glob->stream);
+
+ /* Calculate the size of this element. */
+ size = pos - *ebmlLoc - 8;
+ size |= LITERALU64(0x01000000, 0x00000000);
+
+ /* Seek back to the beginning of the element and write the new size. */
+ fseeko(glob->stream, *ebmlLoc, SEEK_SET);
+ Ebml_Serialize(glob, &size, sizeof(size), 8);
+
+ /* Reset the stream pointer. */
+ fseeko(glob->stream, pos, SEEK_SET);
+}
+
+void write_webm_seek_element(struct EbmlGlobal *ebml,
+ unsigned int id,
+ off_t pos) {+ uint64_t offset = pos - ebml->position_reference;
+ EbmlLoc start;
+ Ebml_StartSubElement(ebml, &start, Seek);
+ Ebml_SerializeBinary(ebml, SeekID, id);
+ Ebml_SerializeUnsigned64(ebml, SeekPosition, offset);
+ Ebml_EndSubElement(ebml, &start);
+}
+
+void write_webm_seek_info(struct EbmlGlobal *ebml) {+ off_t pos;
+ EbmlLoc start;
+ EbmlLoc startInfo;
+ uint64_t frame_time;
+ char version_string[64];
+
+ /* Save the current stream pointer. */
+ pos = ftello(ebml->stream);
+
+ if (ebml->seek_info_pos)
+ fseeko(ebml->stream, ebml->seek_info_pos, SEEK_SET);
+ else
+ ebml->seek_info_pos = pos;
+
+ Ebml_StartSubElement(ebml, &start, SeekHead);
+ write_webm_seek_element(ebml, Tracks, ebml->track_pos);
+ write_webm_seek_element(ebml, Cues, ebml->cue_pos);
+ write_webm_seek_element(ebml, Info, ebml->segment_info_pos);
+ Ebml_EndSubElement(ebml, &start);
+
+ /* Create and write the Segment Info. */
+ if (ebml->debug) {+ strcpy(version_string, "vpxenc");
+ } else {+ strcpy(version_string, "vpxenc ");
+ strncat(version_string,
+ vpx_codec_version_str(),
+ sizeof(version_string) - 1 - strlen(version_string));
+ }
+
+ frame_time = (uint64_t)1000 * ebml->framerate.den
+ / ebml->framerate.num;
+ ebml->segment_info_pos = ftello(ebml->stream);
+ Ebml_StartSubElement(ebml, &startInfo, Info);
+ Ebml_SerializeUnsigned(ebml, TimecodeScale, 1000000);
+ Ebml_SerializeFloat(ebml, Segment_Duration,
+ (double)(ebml->last_pts_ms + frame_time));
+ Ebml_SerializeString(ebml, 0x4D80, version_string);
+ Ebml_SerializeString(ebml, 0x5741, version_string);
+ Ebml_EndSubElement(ebml, &startInfo);
+}
+
+void write_webm_file_header(struct EbmlGlobal *glob,
+ const vpx_codec_enc_cfg_t *cfg,
+ const struct vpx_rational *fps,
+ stereo_format_t stereo_fmt,
+ unsigned int fourcc) {+ EbmlLoc start;
+ EbmlLoc trackStart;
+ EbmlLoc videoStart;
+ unsigned int trackNumber = 1;
+ uint64_t trackID = 0;
+ unsigned int pixelWidth = cfg->g_w;
+ unsigned int pixelHeight = cfg->g_h;
+
+ /* Write the EBML header. */
+ Ebml_StartSubElement(glob, &start, EBML);
+ Ebml_SerializeUnsigned(glob, EBMLVersion, 1);
+ Ebml_SerializeUnsigned(glob, EBMLReadVersion, 1);
+ Ebml_SerializeUnsigned(glob, EBMLMaxIDLength, 4);
+ Ebml_SerializeUnsigned(glob, EBMLMaxSizeLength, 8);
+ Ebml_SerializeString(glob, DocType, "webm");
+ Ebml_SerializeUnsigned(glob, DocTypeVersion, 2);
+ Ebml_SerializeUnsigned(glob, DocTypeReadVersion, 2);
+ Ebml_EndSubElement(glob, &start);
+
+ /* Open and begin writing the segment element. */
+ Ebml_StartSubElement(glob, &glob->startSegment, Segment);
+ glob->position_reference = ftello(glob->stream);
+ glob->framerate = *fps;
+ write_webm_seek_info(glob);
+
+ /* Open and write the Tracks element. */
+ glob->track_pos = ftello(glob->stream);
+ Ebml_StartSubElement(glob, &trackStart, Tracks);
+
+ /* Open and write the Track entry. */
+ Ebml_StartSubElement(glob, &start, TrackEntry);
+ Ebml_SerializeUnsigned(glob, TrackNumber, trackNumber);
+ glob->track_id_pos = ftello(glob->stream);
+ Ebml_SerializeUnsigned32(glob, TrackUID, trackID);
+ Ebml_SerializeUnsigned(glob, TrackType, 1);
+ Ebml_SerializeString(glob, CodecID,
+ fourcc == VP8_FOURCC ? "V_VP8" : "V_VP9");
+ Ebml_StartSubElement(glob, &videoStart, Video);
+ Ebml_SerializeUnsigned(glob, PixelWidth, pixelWidth);
+ Ebml_SerializeUnsigned(glob, PixelHeight, pixelHeight);
+ Ebml_SerializeUnsigned(glob, StereoMode, stereo_fmt);
+ Ebml_EndSubElement(glob, &videoStart);
+
+ /* Close Track entry. */
+ Ebml_EndSubElement(glob, &start);
+
+ /* Close Tracks element. */
+ Ebml_EndSubElement(glob, &trackStart);
+
+ /* Segment element remains open. */
+}
+
+void write_webm_block(struct EbmlGlobal *glob,
+ const vpx_codec_enc_cfg_t *cfg,
+ const vpx_codec_cx_pkt_t *pkt) {+ unsigned int block_length;
+ unsigned char track_number;
+ uint16_t block_timecode = 0;
+ unsigned char flags;
+ int64_t pts_ms;
+ int start_cluster = 0, is_keyframe;
+
+ /* Calculate the PTS of this frame in milliseconds. */
+ pts_ms = pkt->data.frame.pts * 1000
+ * (uint64_t)cfg->g_timebase.num / (uint64_t)cfg->g_timebase.den;
+
+ if (pts_ms <= glob->last_pts_ms)
+ pts_ms = glob->last_pts_ms + 1;
+
+ glob->last_pts_ms = pts_ms;
+
+ /* Calculate the relative time of this block. */
+ if (pts_ms - glob->cluster_timecode > SHRT_MAX)
+ start_cluster = 1;
+ else
+ block_timecode = (uint16_t)pts_ms - glob->cluster_timecode;
+
+ is_keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY);
+ if (start_cluster || is_keyframe) {+ if (glob->cluster_open)
+ Ebml_EndSubElement(glob, &glob->startCluster);
+
+ /* Open the new cluster. */
+ block_timecode = 0;
+ glob->cluster_open = 1;
+ glob->cluster_timecode = (uint32_t)pts_ms;
+ glob->cluster_pos = ftello(glob->stream);
+ Ebml_StartSubElement(glob, &glob->startCluster, Cluster);
+ Ebml_SerializeUnsigned(glob, Timecode, glob->cluster_timecode);
+
+ /* Save a cue point if this is a keyframe. */
+ if (is_keyframe) {+ struct cue_entry *cue, *new_cue_list;
+
+ new_cue_list = realloc(glob->cue_list,
+ (glob->cues + 1) * sizeof(struct cue_entry));
+ if (new_cue_list)
+ glob->cue_list = new_cue_list;
+ else
+ fatal("Failed to realloc cue list.");+
+ cue = &glob->cue_list[glob->cues];
+ cue->time = glob->cluster_timecode;
+ cue->loc = glob->cluster_pos;
+ glob->cues++;
+ }
+ }
+
+ /* Write the Simple Block. */
+ Ebml_WriteID(glob, SimpleBlock);
+
+ block_length = (unsigned int)pkt->data.frame.sz + 4;
+ block_length |= 0x10000000;
+ Ebml_Serialize(glob, &block_length, sizeof(block_length), 4);
+
+ track_number = 1;
+ track_number |= 0x80;
+ Ebml_Write(glob, &track_number, 1);
+
+ Ebml_Serialize(glob, &block_timecode, sizeof(block_timecode), 2);
+
+ flags = 0;
+ if (is_keyframe)
+ flags |= 0x80;
+ if (pkt->data.frame.flags & VPX_FRAME_IS_INVISIBLE)
+ flags |= 0x08;
+ Ebml_Write(glob, &flags, 1);
+
+ Ebml_Write(glob, pkt->data.frame.buf, (unsigned int)pkt->data.frame.sz);
+}
+
+void write_webm_file_footer(struct EbmlGlobal *glob, int hash) {+ EbmlLoc start_cues;
+ EbmlLoc start_cue_point;
+ EbmlLoc start_cue_tracks;
+ unsigned int i;
+
+ if (glob->cluster_open)
+ Ebml_EndSubElement(glob, &glob->startCluster);
+
+ glob->cue_pos = ftello(glob->stream);
+ Ebml_StartSubElement(glob, &start_cues, Cues);
+
+ for (i = 0; i < glob->cues; i++) {+ struct cue_entry *cue = &glob->cue_list[i];
+ Ebml_StartSubElement(glob, &start_cue_point, CuePoint);
+ Ebml_SerializeUnsigned(glob, CueTime, cue->time);
+
+ Ebml_StartSubElement(glob, &start_cue_tracks, CueTrackPositions);
+ Ebml_SerializeUnsigned(glob, CueTrack, 1);
+ Ebml_SerializeUnsigned64(glob, CueClusterPosition,
+ cue->loc - glob->position_reference);
+ Ebml_EndSubElement(glob, &start_cue_tracks);
+
+ Ebml_EndSubElement(glob, &start_cue_point);
+ }
+
+ Ebml_EndSubElement(glob, &start_cues);
+
+ /* Close the Segment. */
+ Ebml_EndSubElement(glob, &glob->startSegment);
+
+ /* Patch up the seek info block. */
+ write_webm_seek_info(glob);
+
+ /* Patch up the track id. */
+ fseeko(glob->stream, glob->track_id_pos, SEEK_SET);
+ Ebml_SerializeUnsigned32(glob, TrackUID, glob->debug ? 0xDEADBEEF : hash);
+
+ fseeko(glob->stream, 0, SEEK_END);
+}
--- a/webmenc.cc
+++ /dev/null
@@ -1,86 +1,0 @@
-/*
- * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-#include "./webmenc.h"
-
-#include <string>
-
-#include "third_party/libwebm/mkvmuxer.hpp"
-#include "third_party/libwebm/mkvmuxerutil.hpp"
-#include "third_party/libwebm/mkvwriter.hpp"
-
-namespace {-const uint64_t kDebugTrackUid = 0xDEADBEEF;
-const int kVideoTrackNumber = 1;
-} // namespace
-
-void write_webm_file_header(struct EbmlGlobal *glob,
- const vpx_codec_enc_cfg_t *cfg,
- const struct vpx_rational *fps,
- stereo_format_t stereo_fmt,
- unsigned int fourcc) {- mkvmuxer::MkvWriter *const writer = new mkvmuxer::MkvWriter(glob->stream);
- mkvmuxer::Segment *const segment = new mkvmuxer::Segment();
- segment->Init(writer);
- segment->set_mode(mkvmuxer::Segment::kFile);
- segment->OutputCues(true);
-
- mkvmuxer::SegmentInfo *const info = segment->GetSegmentInfo();
- const uint64_t kTimecodeScale = 1000000;
- info->set_timecode_scale(kTimecodeScale);
- std::string version = "vpxenc";
- if (!glob->debug) {- version.append(std::string(" ") + vpx_codec_version_str());- }
- info->set_writing_app(version.c_str());
-
- const int video_track_id = segment->AddVideoTrack(static_cast<int>(cfg->g_w),
- static_cast<int>(cfg->g_h),
- kVideoTrackNumber);
- mkvmuxer::VideoTrack* const video_track =
- static_cast<mkvmuxer::VideoTrack*>(
- segment->GetTrackByNumber(video_track_id));
- video_track->SetStereoMode(stereo_fmt);
- video_track->set_codec_id(fourcc == VP8_FOURCC ? "V_VP8" : "V_VP9");
- if (glob->debug) {- video_track->set_uid(kDebugTrackUid);
- }
- glob->writer = writer;
- glob->segment = segment;
-}
-
-void write_webm_block(struct EbmlGlobal *glob,
- const vpx_codec_enc_cfg_t *cfg,
- const vpx_codec_cx_pkt_t *pkt) {- mkvmuxer::Segment *const segment =
- reinterpret_cast<mkvmuxer::Segment*>(glob->segment);
- int64_t pts_ns = pkt->data.frame.pts * 1000000000ll *
- cfg->g_timebase.num / cfg->g_timebase.den;
- if (pts_ns <= glob->last_pts_ns)
- pts_ns = glob->last_pts_ns + 1000000;
- glob->last_pts_ns = pts_ns;
-
- segment->AddFrame(static_cast<uint8_t*>(pkt->data.frame.buf),
- pkt->data.frame.sz,
- kVideoTrackNumber,
- pts_ns,
- pkt->data.frame.flags & VPX_FRAME_IS_KEY);
-}
-
-void write_webm_file_footer(struct EbmlGlobal *glob) {- mkvmuxer::MkvWriter *const writer =
- reinterpret_cast<mkvmuxer::MkvWriter*>(glob->writer);
- mkvmuxer::Segment *const segment =
- reinterpret_cast<mkvmuxer::Segment*>(glob->segment);
- segment->Finalize();
- delete segment;
- delete writer;
- glob->writer = NULL;
- glob->segment = NULL;
-}
--- a/webmenc.h
+++ b/webmenc.h
@@ -13,6 +13,13 @@
#include <stdio.h>
#include <stdlib.h>
+#if defined(_MSC_VER)
+/* MSVS doesn't define off_t */
+typedef __int64 off_t;
+#else
+#include <stdint.h>
+#endif
+
#include "tools_common.h"
#include "vpx/vpx_encoder.h"
@@ -20,13 +27,40 @@
extern "C" {#endif
-/* TODO(vigneshv): Rename this struct */
+typedef off_t EbmlLoc;
+
+struct cue_entry {+ unsigned int time;
+ uint64_t loc;
+};
+
struct EbmlGlobal {int debug;
+
FILE *stream;
- int64_t last_pts_ns;
- void *writer;
- void *segment;
+ int64_t last_pts_ms;
+ vpx_rational_t framerate;
+
+ /* These pointers are to the start of an element */
+ off_t position_reference;
+ off_t seek_info_pos;
+ off_t segment_info_pos;
+ off_t track_pos;
+ off_t cue_pos;
+ off_t cluster_pos;
+
+ /* This pointer is to a specific element to be serialized */
+ off_t track_id_pos;
+
+ /* These pointers are to the size field of the element */
+ EbmlLoc startSegment;
+ EbmlLoc startCluster;
+
+ uint32_t cluster_timecode;
+ int cluster_open;
+
+ struct cue_entry *cue_list;
+ unsigned int cues;
};
/* Stereo 3D packed frame format */
@@ -38,6 +72,10 @@
STEREO_FORMAT_RIGHT_LEFT = 11
} stereo_format_t;
+void write_webm_seek_element(struct EbmlGlobal *ebml,
+ unsigned int id,
+ off_t pos);
+
void write_webm_file_header(struct EbmlGlobal *glob,
const vpx_codec_enc_cfg_t *cfg,
const struct vpx_rational *fps,
@@ -48,7 +86,7 @@
const vpx_codec_enc_cfg_t *cfg,
const vpx_codec_cx_pkt_t *pkt);
-void write_webm_file_footer(struct EbmlGlobal *glob);
+void write_webm_file_footer(struct EbmlGlobal *glob, int hash);
#ifdef __cplusplus
} // extern "C"