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webm_info.cc
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// Copyright (c) 2012 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 <inttypes.h>
#include <stdint.h>
#include <cstdlib>
#include <cstring>
#include <limits>
#include <memory>
#include <queue>
#include <string>
#include <vector>
#include "common/hdr_util.h"
#include "common/indent.h"
#include "common/vp9_header_parser.h"
#include "common/vp9_level_stats.h"
#include "common/webm_constants.h"
#include "common/webm_endian.h"
#include "mkvparser/mkvparser.h"
#include "mkvparser/mkvreader.h"
namespace {
using mkvparser::ContentEncoding;
using std::string;
using std::wstring;
using libwebm::Indent;
using libwebm::kNanosecondsPerSecond;
using libwebm::kNanosecondsPerSecondi;
const char VERSION_STRING[] = "1.0.4.5";
struct Options {
Options();
// Returns true if |value| matches -|option| or -no|option|.
static bool MatchesBooleanOption(const string& option, const string& value);
// Set all of the member variables to |value|.
void SetAll(bool value);
bool output_video;
bool output_audio;
bool output_size;
bool output_offset;
bool output_seconds;
bool output_ebml_header;
bool output_segment;
bool output_seekhead;
bool output_segment_info;
bool output_tracks;
bool output_clusters;
bool output_blocks;
bool output_codec_info;
bool output_clusters_size;
bool output_encrypted_info;
bool output_cues;
bool output_frame_stats;
bool output_vp9_level;
};
Options::Options()
: output_video(true),
output_audio(true),
output_size(false),
output_offset(false),
output_seconds(true),
output_ebml_header(true),
output_segment(true),
output_seekhead(false),
output_segment_info(true),
output_tracks(true),
output_clusters(false),
output_blocks(false),
output_codec_info(false),
output_clusters_size(false),
output_encrypted_info(false),
output_cues(false),
output_frame_stats(false),
output_vp9_level(false) {}
void Options::SetAll(bool value) {
output_video = value;
output_audio = value;
output_size = value;
output_offset = value;
output_ebml_header = value;
output_seconds = value;
output_segment = value;
output_segment_info = value;
output_tracks = value;
output_clusters = value;
output_blocks = value;
output_codec_info = value;
output_clusters_size = value;
output_encrypted_info = value;
output_cues = value;
output_frame_stats = value;
output_vp9_level = value;
}
bool Options::MatchesBooleanOption(const string& option, const string& value) {
const string opt = "-" + option;
const string noopt = "-no" + option;
return value == opt || value == noopt;
}
struct FrameStats {
FrameStats()
: frames(0),
displayed_frames(0),
first_altref(true),
frames_since_last_altref(0),
minimum_altref_distance(std::numeric_limits<int>::max()),
min_altref_end_ns(0),
max_window_size(0),
max_window_end_ns(0) {}
int frames;
int displayed_frames;
bool first_altref;
int frames_since_last_altref;
int minimum_altref_distance;
int64_t min_altref_end_ns;
std::queue<int64_t> window;
int64_t max_window_size;
int64_t max_window_end_ns;
};
void Usage() {
printf("Usage: webm_info [options] -i input\n");
printf("\n");
printf("Main options:\n");
printf(" -h | -? show help\n");
printf(" -v show version\n");
printf(" -all Enable all output options.\n");
printf(" -video Output video tracks (true)\n");
printf(" -audio Output audio tracks (true)\n");
printf(" -size Output element sizes (false)\n");
printf(" -offset Output element offsets (false)\n");
printf(" -times_seconds Output times as seconds (true)\n");
printf(" -ebml_header Output EBML header (true)\n");
printf(" -segment Output Segment (true)\n");
printf(" -seekhead Output SeekHead (false)\n");
printf(" -segment_info Output SegmentInfo (true)\n");
printf(" -tracks Output Tracks (true)\n");
printf(" -clusters Output Clusters (false)\n");
printf(" -blocks Output Blocks (false)\n");
printf(" -codec_info Output video codec information (false)\n");
printf(" -clusters_size Output Total Clusters size (false)\n");
printf(" -encrypted_info Output encrypted frame info (false)\n");
printf(" -cues Output Cues entries (false)\n");
printf(" -frame_stats Output frame stats (VP9)(false)\n");
printf(" -vp9_level Output VP9 level(false)\n");
printf("\nOutput options may be negated by prefixing 'no'.\n");
}
// TODO(fgalligan): Add support for non-ascii.
wstring UTF8ToWideString(const char* str) {
wstring wstr;
if (str == NULL)
return wstr;
string temp_str(str, strlen(str));
wstr.assign(temp_str.begin(), temp_str.end());
return wstr;
}
void OutputEBMLHeader(const mkvparser::EBMLHeader& ebml, FILE* o,
Indent* indent) {
fprintf(o, "EBML Header:\n");
indent->Adjust(libwebm::kIncreaseIndent);
fprintf(o, "%sEBMLVersion : %lld\n", indent->indent_str().c_str(),
ebml.m_version);
fprintf(o, "%sEBMLReadVersion : %lld\n", indent->indent_str().c_str(),
ebml.m_readVersion);
fprintf(o, "%sEBMLMaxIDLength : %lld\n", indent->indent_str().c_str(),
ebml.m_maxIdLength);
fprintf(o, "%sEBMLMaxSizeLength : %lld\n", indent->indent_str().c_str(),
ebml.m_maxSizeLength);
fprintf(o, "%sDoc Type : %s\n", indent->indent_str().c_str(),
ebml.m_docType);
fprintf(o, "%sDocTypeVersion : %lld\n", indent->indent_str().c_str(),
ebml.m_docTypeVersion);
fprintf(o, "%sDocTypeReadVersion: %lld\n", indent->indent_str().c_str(),
ebml.m_docTypeReadVersion);
indent->Adjust(libwebm::kDecreaseIndent);
}
void OutputSegment(const mkvparser::Segment& segment, const Options& options,
FILE* o) {
fprintf(o, "Segment:");
if (options.output_offset)
fprintf(o, " @: %lld", segment.m_element_start);
if (options.output_size)
fprintf(o, " size: %lld",
segment.m_size + segment.m_start - segment.m_element_start);
fprintf(o, "\n");
}
bool OutputSeekHead(const mkvparser::Segment& segment, const Options& options,
FILE* o, Indent* indent) {
const mkvparser::SeekHead* const seekhead = segment.GetSeekHead();
if (!seekhead) {
// SeekHeads are optional.
return true;
}
fprintf(o, "%sSeekHead:", indent->indent_str().c_str());
if (options.output_offset)
fprintf(o, " @: %lld", seekhead->m_element_start);
if (options.output_size)
fprintf(o, " size: %lld", seekhead->m_element_size);
fprintf(o, "\n");
indent->Adjust(libwebm::kIncreaseIndent);
for (int i = 0; i < seekhead->GetCount(); ++i) {
const mkvparser::SeekHead::Entry* const entry = seekhead->GetEntry(i);
if (!entry) {
fprintf(stderr, "Error retrieving SeekHead entry #%d\n", i);
return false;
}
fprintf(o, "%sEntry[%d]", indent->indent_str().c_str(), i);
if (options.output_offset)
fprintf(o, " @: %lld", entry->element_start);
if (options.output_size)
fprintf(o, " size: %lld", entry->element_size);
fprintf(o, "\n");
indent->Adjust(libwebm::kIncreaseIndent);
const char* const entry_indent = indent->indent_str().c_str();
// TODO(jzern): 1) known ids could be stringified. 2) ids could be
// reencoded to EBML for ease of lookup.
fprintf(o, "%sSeek ID : %llx\n", entry_indent, entry->id);
fprintf(o, "%sSeek position : %lld\n", entry_indent, entry->pos);
indent->Adjust(libwebm::kDecreaseIndent);
}
for (int i = 0; i < seekhead->GetVoidElementCount(); ++i) {
const mkvparser::SeekHead::VoidElement* const entry =
seekhead->GetVoidElement(i);
if (!entry) {
fprintf(stderr, "Error retrieving SeekHead void element #%d\n", i);
return false;
}
fprintf(o, "%sVoid element[%d]", indent->indent_str().c_str(), i);
if (options.output_offset)
fprintf(o, " @: %lld", entry->element_start);
if (options.output_size)
fprintf(o, " size: %lld", entry->element_size);
fprintf(o, "\n");
}
indent->Adjust(libwebm::kDecreaseIndent);
return true;
}
bool OutputSegmentInfo(const mkvparser::Segment& segment,
const Options& options, FILE* o, Indent* indent) {
const mkvparser::SegmentInfo* const segment_info = segment.GetInfo();
if (!segment_info) {
fprintf(stderr, "SegmentInfo was NULL.\n");
return false;
}
const int64_t timecode_scale = segment_info->GetTimeCodeScale();
const int64_t duration_ns = segment_info->GetDuration();
const wstring title = UTF8ToWideString(segment_info->GetTitleAsUTF8());
const wstring muxing_app =
UTF8ToWideString(segment_info->GetMuxingAppAsUTF8());
const wstring writing_app =
UTF8ToWideString(segment_info->GetWritingAppAsUTF8());
fprintf(o, "%sSegmentInfo:", indent->indent_str().c_str());
if (options.output_offset)
fprintf(o, " @: %lld", segment_info->m_element_start);
if (options.output_size)
fprintf(o, " size: %lld", segment_info->m_element_size);
fprintf(o, "\n");
indent->Adjust(libwebm::kIncreaseIndent);
fprintf(o, "%sTimecodeScale : %" PRId64 " \n", indent->indent_str().c_str(),
timecode_scale);
if (options.output_seconds)
fprintf(o, "%sDuration(secs): %g\n", indent->indent_str().c_str(),
duration_ns / kNanosecondsPerSecond);
else
fprintf(o, "%sDuration(nano): %" PRId64 "\n", indent->indent_str().c_str(),
duration_ns);
if (!title.empty())
fprintf(o, "%sTitle : %ls\n", indent->indent_str().c_str(),
title.c_str());
if (!muxing_app.empty())
fprintf(o, "%sMuxingApp : %ls\n", indent->indent_str().c_str(),
muxing_app.c_str());
if (!writing_app.empty())
fprintf(o, "%sWritingApp : %ls\n", indent->indent_str().c_str(),
writing_app.c_str());
indent->Adjust(libwebm::kDecreaseIndent);
return true;
}
bool OutputTracks(const mkvparser::Segment& segment, const Options& options,
FILE* o, Indent* indent) {
const mkvparser::Tracks* const tracks = segment.GetTracks();
if (!tracks) {
fprintf(stderr, "Tracks was NULL.\n");
return false;
}
fprintf(o, "%sTracks:", indent->indent_str().c_str());
if (options.output_offset)
fprintf(o, " @: %lld", tracks->m_element_start);
if (options.output_size)
fprintf(o, " size: %lld", tracks->m_element_size);
fprintf(o, "\n");
unsigned int i = 0;
const unsigned long j = tracks->GetTracksCount();
while (i != j) {
const mkvparser::Track* const track = tracks->GetTrackByIndex(i++);
if (track == NULL)
continue;
indent->Adjust(libwebm::kIncreaseIndent);
fprintf(o, "%sTrack:", indent->indent_str().c_str());
if (options.output_offset)
fprintf(o, " @: %lld", track->m_element_start);
if (options.output_size)
fprintf(o, " size: %lld", track->m_element_size);
fprintf(o, "\n");
const int64_t track_type = track->GetType();
const int64_t track_number = track->GetNumber();
const wstring track_name = UTF8ToWideString(track->GetNameAsUTF8());
indent->Adjust(libwebm::kIncreaseIndent);
fprintf(o, "%sTrackType : %" PRId64 "\n", indent->indent_str().c_str(),
track_type);
fprintf(o, "%sTrackNumber : %" PRId64 "\n", indent->indent_str().c_str(),
track_number);
if (!track_name.empty())
fprintf(o, "%sName : %ls\n", indent->indent_str().c_str(),
track_name.c_str());
const char* const codec_id = track->GetCodecId();
if (codec_id)
fprintf(o, "%sCodecID : %s\n", indent->indent_str().c_str(),
codec_id);
const wstring codec_name = UTF8ToWideString(track->GetCodecNameAsUTF8());
if (!codec_name.empty())
fprintf(o, "%sCodecName : %ls\n", indent->indent_str().c_str(),
codec_name.c_str());
size_t private_size;
const unsigned char* const private_data =
track->GetCodecPrivate(private_size);
if (private_data) {
fprintf(o, "%sPrivateData(size): %d\n", indent->indent_str().c_str(),
static_cast<int>(private_size));
if (track_type == mkvparser::Track::kVideo) {
const std::string codec_id = track->GetCodecId();
const std::string v_vp9 = "V_VP9";
if (codec_id == v_vp9) {
libwebm::Vp9CodecFeatures features;
if (!libwebm::ParseVpxCodecPrivate(private_data,
static_cast<int32_t>(private_size),
&features)) {
fprintf(stderr, "Error parsing VpxCodecPrivate.\n");
return false;
}
if (features.profile != -1)
fprintf(o, "%sVP9 profile : %d\n",
indent->indent_str().c_str(), features.profile);
if (features.level != -1)
fprintf(o, "%sVP9 level : %d\n",
indent->indent_str().c_str(), features.level);
if (features.bit_depth != -1)
fprintf(o, "%sVP9 bit_depth : %d\n",
indent->indent_str().c_str(), features.bit_depth);
if (features.chroma_subsampling != -1)
fprintf(o, "%sVP9 chroma subsampling : %d\n",
indent->indent_str().c_str(), features.chroma_subsampling);
}
}
}
const uint64_t default_duration = track->GetDefaultDuration();
if (default_duration > 0)
fprintf(o, "%sDefaultDuration: %" PRIu64 "\n",
indent->indent_str().c_str(), default_duration);
if (track->GetContentEncodingCount() > 0) {
// Only check the first content encoding.
const ContentEncoding* const encoding =
track->GetContentEncodingByIndex(0);
if (!encoding) {
printf("Could not get first ContentEncoding.\n");
return false;
}
fprintf(o, "%sContentEncodingOrder : %lld\n",
indent->indent_str().c_str(), encoding->encoding_order());
fprintf(o, "%sContentEncodingScope : %lld\n",
indent->indent_str().c_str(), encoding->encoding_scope());
fprintf(o, "%sContentEncodingType : %lld\n",
indent->indent_str().c_str(), encoding->encoding_type());
if (encoding->GetEncryptionCount() > 0) {
// Only check the first encryption.
const ContentEncoding::ContentEncryption* const encryption =
encoding->GetEncryptionByIndex(0);
if (!encryption) {
printf("Could not get first ContentEncryption.\n");
return false;
}
fprintf(o, "%sContentEncAlgo : %lld\n",
indent->indent_str().c_str(), encryption->algo);
if (encryption->key_id_len > 0) {
fprintf(o, "%sContentEncKeyID : ", indent->indent_str().c_str());
for (int k = 0; k < encryption->key_id_len; ++k) {
fprintf(o, "0x%02x, ", encryption->key_id[k]);
}
fprintf(o, "\n");
}
if (encryption->signature_len > 0) {
fprintf(o, "%sContentSignature : 0x",
indent->indent_str().c_str());
for (int k = 0; k < encryption->signature_len; ++k) {
fprintf(o, "%x", encryption->signature[k]);
}
fprintf(o, "\n");
}
if (encryption->sig_key_id_len > 0) {
fprintf(o, "%sContentSigKeyID : 0x",
indent->indent_str().c_str());
for (int k = 0; k < encryption->sig_key_id_len; ++k) {
fprintf(o, "%x", encryption->sig_key_id[k]);
}
fprintf(o, "\n");
}
fprintf(o, "%sContentSigAlgo : %lld\n",
indent->indent_str().c_str(), encryption->sig_algo);
fprintf(o, "%sContentSigHashAlgo : %lld\n",
indent->indent_str().c_str(), encryption->sig_hash_algo);
const ContentEncoding::ContentEncAESSettings& aes =
encryption->aes_settings;
fprintf(o, "%sCipherMode : %lld\n",
indent->indent_str().c_str(), aes.cipher_mode);
}
}
if (track_type == mkvparser::Track::kVideo) {
const mkvparser::VideoTrack* const video_track =
static_cast<const mkvparser::VideoTrack* const>(track);
const int64_t width = video_track->GetWidth();
const int64_t height = video_track->GetHeight();
const int64_t display_width = video_track->GetDisplayWidth();
const int64_t display_height = video_track->GetDisplayHeight();
const int64_t display_unit = video_track->GetDisplayUnit();
const double frame_rate = video_track->GetFrameRate();
fprintf(o, "%sPixelWidth : %" PRId64 "\n", indent->indent_str().c_str(),
width);
fprintf(o, "%sPixelHeight : %" PRId64 "\n", indent->indent_str().c_str(),
height);
if (frame_rate > 0.0)
fprintf(o, "%sFrameRate : %g\n", indent->indent_str().c_str(),
video_track->GetFrameRate());
if (display_unit > 0 || display_width != width ||
display_height != height) {
fprintf(o, "%sDisplayWidth : %" PRId64 "\n",
indent->indent_str().c_str(), display_width);
fprintf(o, "%sDisplayHeight : %" PRId64 "\n",
indent->indent_str().c_str(), display_height);
fprintf(o, "%sDisplayUnit : %" PRId64 "\n",
indent->indent_str().c_str(), display_unit);
}
const mkvparser::Colour* const colour = video_track->GetColour();
if (colour) {
// TODO(fgalligan): Add support for Colour's address and size.
fprintf(o, "%sColour:\n", indent->indent_str().c_str());
indent->Adjust(libwebm::kIncreaseIndent);
const int64_t matrix_coefficients = colour->matrix_coefficients;
const int64_t bits_per_channel = colour->bits_per_channel;
const int64_t chroma_subsampling_horz = colour->chroma_subsampling_horz;
const int64_t chroma_subsampling_vert = colour->chroma_subsampling_vert;
const int64_t cb_subsampling_horz = colour->cb_subsampling_horz;
const int64_t cb_subsampling_vert = colour->cb_subsampling_vert;
const int64_t chroma_siting_horz = colour->chroma_siting_horz;
const int64_t chroma_siting_vert = colour->chroma_siting_vert;
const int64_t range = colour->range;
const int64_t transfer_characteristics =
colour->transfer_characteristics;
const int64_t primaries = colour->primaries;
const int64_t max_cll = colour->max_cll;
const int64_t max_fall = colour->max_fall;
if (matrix_coefficients != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sMatrixCoefficients : %" PRId64 "\n",
indent->indent_str().c_str(), matrix_coefficients);
if (bits_per_channel != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sBitsPerChannel : %" PRId64 "\n",
indent->indent_str().c_str(), bits_per_channel);
if (chroma_subsampling_horz != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sChromaSubsamplingHorz : %" PRId64 "\n",
indent->indent_str().c_str(), chroma_subsampling_horz);
if (chroma_subsampling_vert != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sChromaSubsamplingVert : %" PRId64 "\n",
indent->indent_str().c_str(), chroma_subsampling_vert);
if (cb_subsampling_horz != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sCbSubsamplingHorz : %" PRId64 "\n",
indent->indent_str().c_str(), cb_subsampling_horz);
if (cb_subsampling_vert != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sCbSubsamplingVert : %" PRId64 "\n",
indent->indent_str().c_str(), cb_subsampling_vert);
if (chroma_siting_horz != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sChromaSitingHorz : %" PRId64 "\n",
indent->indent_str().c_str(), chroma_siting_horz);
if (chroma_siting_vert != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sChromaSitingVert : %" PRId64 "\n",
indent->indent_str().c_str(), chroma_siting_vert);
if (range != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sRange : %" PRId64 "\n",
indent->indent_str().c_str(), range);
if (transfer_characteristics != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sTransferCharacteristics : %" PRId64 "\n",
indent->indent_str().c_str(), transfer_characteristics);
if (primaries != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sPrimaries : %" PRId64 "\n",
indent->indent_str().c_str(), primaries);
if (max_cll != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sMaxCLL : %" PRId64 "\n",
indent->indent_str().c_str(), max_cll);
if (max_fall != mkvparser::Colour::kValueNotPresent)
fprintf(o, "%sMaxFALL : %" PRId64 "\n",
indent->indent_str().c_str(), max_fall);
const mkvparser::MasteringMetadata* const metadata =
colour->mastering_metadata;
if (metadata) {
// TODO(fgalligan): Add support for MasteringMetadata's address and
// size.
fprintf(o, "%sMasteringMetadata:\n", indent->indent_str().c_str());
indent->Adjust(libwebm::kIncreaseIndent);
const mkvparser::PrimaryChromaticity* const red = metadata->r;
const mkvparser::PrimaryChromaticity* const green = metadata->g;
const mkvparser::PrimaryChromaticity* const blue = metadata->b;
const mkvparser::PrimaryChromaticity* const white =
metadata->white_point;
const float max = metadata->luminance_max;
const float min = metadata->luminance_min;
if (red) {
fprintf(o, "%sPrimaryRChromaticityX : %g\n",
indent->indent_str().c_str(), red->x);
fprintf(o, "%sPrimaryRChromaticityY : %g\n",
indent->indent_str().c_str(), red->y);
}
if (green) {
fprintf(o, "%sPrimaryGChromaticityX : %g\n",
indent->indent_str().c_str(), green->x);
fprintf(o, "%sPrimaryGChromaticityY : %g\n",
indent->indent_str().c_str(), green->y);
}
if (blue) {
fprintf(o, "%sPrimaryBChromaticityX : %g\n",
indent->indent_str().c_str(), blue->x);
fprintf(o, "%sPrimaryBChromaticityY : %g\n",
indent->indent_str().c_str(), blue->y);
}
if (white) {
fprintf(o, "%sWhitePointChromaticityX : %g\n",
indent->indent_str().c_str(), white->x);
fprintf(o, "%sWhitePointChromaticityY : %g\n",
indent->indent_str().c_str(), white->y);
}
if (max != mkvparser::MasteringMetadata::kValueNotPresent)
fprintf(o, "%sLuminanceMax : %g\n",
indent->indent_str().c_str(), max);
if (min != mkvparser::MasteringMetadata::kValueNotPresent)
fprintf(o, "%sLuminanceMin : %g\n",
indent->indent_str().c_str(), min);
indent->Adjust(libwebm::kDecreaseIndent);
}
indent->Adjust(libwebm::kDecreaseIndent);
}
const mkvparser::Projection* const projection =
video_track->GetProjection();
if (projection) {
fprintf(o, "%sProjection:\n", indent->indent_str().c_str());
indent->Adjust(libwebm::kIncreaseIndent);
const int projection_type = static_cast<int>(projection->type);
const int kTypeNotPresent =
static_cast<int>(mkvparser::Projection::kTypeNotPresent);
const float kValueNotPresent = mkvparser::Projection::kValueNotPresent;
if (projection_type != kTypeNotPresent)
fprintf(o, "%sProjectionType : %d\n",
indent->indent_str().c_str(), projection_type);
if (projection->private_data)
fprintf(o, "%sProjectionPrivate(size) : %d\n",
indent->indent_str().c_str(),
static_cast<int>(projection->private_data_length));
if (projection->pose_yaw != kValueNotPresent)
fprintf(o, "%sProjectionPoseYaw : %g\n",
indent->indent_str().c_str(), projection->pose_yaw);
if (projection->pose_pitch != kValueNotPresent)
fprintf(o, "%sProjectionPosePitch : %g\n",
indent->indent_str().c_str(), projection->pose_pitch);
if (projection->pose_roll != kValueNotPresent)
fprintf(o, "%sProjectionPoseRoll : %g\n",
indent->indent_str().c_str(), projection->pose_roll);
indent->Adjust(libwebm::kDecreaseIndent);
}
} else if (track_type == mkvparser::Track::kAudio) {
const mkvparser::AudioTrack* const audio_track =
static_cast<const mkvparser::AudioTrack* const>(track);
const int64_t channels = audio_track->GetChannels();
const int64_t bit_depth = audio_track->GetBitDepth();
const uint64_t codec_delay = audio_track->GetCodecDelay();
const uint64_t seek_preroll = audio_track->GetSeekPreRoll();
fprintf(o, "%sChannels : %" PRId64 "\n",
indent->indent_str().c_str(), channels);
if (bit_depth > 0)
fprintf(o, "%sBitDepth : %" PRId64 "\n",
indent->indent_str().c_str(), bit_depth);
fprintf(o, "%sSamplingFrequency: %g\n", indent->indent_str().c_str(),
audio_track->GetSamplingRate());
if (codec_delay)
fprintf(o, "%sCodecDelay : %" PRIu64 "\n",
indent->indent_str().c_str(), codec_delay);
if (seek_preroll)
fprintf(o, "%sSeekPreRoll : %" PRIu64 "\n",
indent->indent_str().c_str(), seek_preroll);
}
indent->Adjust(libwebm::kDecreaseIndent * 2);
}
return true;
}
// libvpx reference: vp9/vp9_dx_iface.c
void ParseSuperframeIndex(const uint8_t* data, size_t data_sz,
uint32_t sizes[8], int* count) {
const uint8_t marker = data[data_sz - 1];
*count = 0;
if ((marker & 0xe0) == 0xc0) {
const int frames = (marker & 0x7) + 1;
const int mag = ((marker >> 3) & 0x3) + 1;
const size_t index_sz = 2 + mag * frames;
if (data_sz >= index_sz && data[data_sz - index_sz] == marker) {
// found a valid superframe index
const uint8_t* x = data + data_sz - index_sz + 1;
for (int i = 0; i < frames; ++i) {
uint32_t this_sz = 0;
for (int j = 0; j < mag; ++j) {
this_sz |= (*x++) << (j * 8);
}
sizes[i] = this_sz;
}
*count = frames;
}
}
}
void PrintVP9Info(const uint8_t* data, int size, FILE* o, int64_t time_ns,
FrameStats* stats, vp9_parser::Vp9HeaderParser* parser,
vp9_parser::Vp9LevelStats* level_stats) {
if (size < 1)
return;
uint32_t sizes[8];
int i = 0, count = 0;
ParseSuperframeIndex(data, size, sizes, &count);
// Remove all frames that are less than window size.
while (!stats->window.empty() &&
stats->window.front() < (time_ns - (kNanosecondsPerSecondi - 1)))
stats->window.pop();
do {
const size_t frame_length = (count > 0) ? sizes[i] : size;
if (frame_length > std::numeric_limits<int>::max() ||
static_cast<int>(frame_length) > size) {
fprintf(o, " invalid VP9 frame size (%u)\n",
static_cast<uint32_t>(frame_length));
return;
}
parser->SetFrame(data, frame_length);
if (!parser->ParseUncompressedHeader())
return;
level_stats->AddFrame(*parser, time_ns);
// const int frame_marker = (data[0] >> 6) & 0x3;
const int version = parser->profile();
const int key = parser->key();
const int altref_frame = parser->altref();
const int error_resilient_mode = parser->error_resilient_mode();
const int column_tiles = parser->column_tiles();
const int frame_parallel_mode = parser->frame_parallel_mode();
if (key &&
!(size >= 4 && data[1] == 0x49 && data[2] == 0x83 && data[3] == 0x42)) {
fprintf(o, " invalid VP9 signature");
return;
}
stats->window.push(time_ns);
++stats->frames;
if (altref_frame) {
const int delta_altref = stats->frames_since_last_altref;
if (stats->first_altref) {
stats->first_altref = false;
} else if (delta_altref < stats->minimum_altref_distance) {
stats->minimum_altref_distance = delta_altref;
stats->min_altref_end_ns = time_ns;
}
stats->frames_since_last_altref = 0;
} else {
++stats->frames_since_last_altref;
++stats->displayed_frames;
}
if (count > 0) {
fprintf(o, " packed [%d]: {", i);
}
fprintf(o, " key:%d v:%d altref:%d errm:%d ct:%d fpm:%d", key, version,
altref_frame, error_resilient_mode, column_tiles,
frame_parallel_mode);
if (key && size > 4) {
fprintf(o, " cs:%d", parser->color_space());
}
if (count > 0) {
fprintf(o, " size: %u }", sizes[i]);
data += sizes[i];
size -= sizes[i];
}
++i;
} while (i < count);
if (stats->max_window_size < static_cast<int64_t>(stats->window.size())) {
stats->max_window_size = stats->window.size();
stats->max_window_end_ns = time_ns;
}
}
void PrintVP8Info(const uint8_t* data, int size, FILE* o) {
if (size < 3)
return;
const uint32_t bits = data[0] | (data[1] << 8) | (data[2] << 16);
const int key = !(bits & 0x1);
const int altref_frame = !((bits >> 4) & 0x1);
const int version = (bits >> 1) & 0x7;
const int partition_length = (bits >> 5) & 0x7FFFF;
if (key &&
!(size >= 6 && data[3] == 0x9d && data[4] == 0x01 && data[5] == 0x2a)) {
fprintf(o, " invalid VP8 signature");
return;
}
fprintf(o, " key:%d v:%d altref:%d partition_length:%d", key, version,
altref_frame, partition_length);
}
// Prints the partition offsets of the sub-sample encryption. |data| must point
// to an encrypted frame just after the signal byte. Returns the number of
// bytes read from the sub-sample partition information.
int PrintSubSampleEncryption(const uint8_t* data, int size, FILE* o) {
int read_end = sizeof(uint64_t);
// Skip past IV.
if (size < read_end)
return 0;
data += sizeof(uint64_t);
// Read number of partitions.
read_end += sizeof(uint8_t);
if (size < read_end)
return 0;
const int num_partitions = data[0];
data += sizeof(uint8_t);
// Read partitions.
for (int i = 0; i < num_partitions; ++i) {
read_end += sizeof(uint32_t);
if (size < read_end)
return 0;
uint32_t partition_offset;
memcpy(&partition_offset, data, sizeof(partition_offset));
partition_offset = libwebm::bigendian_to_host(partition_offset);
fprintf(o, " off[%d]:%u", i, partition_offset);
data += sizeof(uint32_t);
}
return read_end;
}
bool OutputCluster(const mkvparser::Cluster& cluster,
const mkvparser::Tracks& tracks, const Options& options,
FILE* o, mkvparser::MkvReader* reader, Indent* indent,
int64_t* clusters_size, FrameStats* stats,
vp9_parser::Vp9HeaderParser* parser,
vp9_parser::Vp9LevelStats* level_stats) {
if (clusters_size) {
// Load the Cluster.
const mkvparser::BlockEntry* block_entry;
long status = cluster.GetFirst(block_entry);
if (status) {
fprintf(stderr, "Could not get first Block of Cluster.\n");
return false;
}
*clusters_size += cluster.GetElementSize();
}
if (options.output_clusters) {
const int64_t time_ns = cluster.GetTime();
const int64_t duration_ns = cluster.GetLastTime() - cluster.GetFirstTime();
fprintf(o, "%sCluster:", indent->indent_str().c_str());
if (options.output_offset)
fprintf(o, " @: %lld", cluster.m_element_start);
if (options.output_size)
fprintf(o, " size: %lld", cluster.GetElementSize());
fprintf(o, "\n");
indent->Adjust(libwebm::kIncreaseIndent);
if (options.output_seconds)
fprintf(o, "%sTimecode (sec) : %g\n", indent->indent_str().c_str(),
time_ns / kNanosecondsPerSecond);
else
fprintf(o, "%sTimecode (nano): %" PRId64 "\n",
indent->indent_str().c_str(), time_ns);
if (options.output_seconds)
fprintf(o, "%sDuration (sec) : %g\n", indent->indent_str().c_str(),
duration_ns / kNanosecondsPerSecond);
else
fprintf(o, "%sDuration (nano): %" PRId64 "\n",
indent->indent_str().c_str(), duration_ns);
fprintf(o, "%s# Blocks : %ld\n", indent->indent_str().c_str(),
cluster.GetEntryCount());
}
if (options.output_blocks) {
const mkvparser::BlockEntry* block_entry;
long status = cluster.GetFirst(block_entry);
if (status) {
fprintf(stderr, "Could not get first Block of Cluster.\n");
return false;
}
std::vector<unsigned char> vector_data;
while (block_entry != NULL && !block_entry->EOS()) {
const mkvparser::Block* const block = block_entry->GetBlock();
if (!block) {
fprintf(stderr, "Could not getblock entry.\n");
return false;
}
const unsigned int track_number =
static_cast<unsigned int>(block->GetTrackNumber());
const mkvparser::Track* track = tracks.GetTrackByNumber(track_number);
if (!track) {
fprintf(stderr, "Could not get Track.\n");
return false;
}
const int64_t track_type = track->GetType();
if ((track_type == mkvparser::Track::kVideo && options.output_video) ||
(track_type == mkvparser::Track::kAudio && options.output_audio)) {
const int64_t time_ns = block->GetTime(&cluster);
const bool is_key = block->IsKey();
if (block_entry->GetKind() == mkvparser::BlockEntry::kBlockGroup) {
fprintf(o, "%sBlockGroup:\n", indent->indent_str().c_str());
indent->Adjust(libwebm::kIncreaseIndent);
}
fprintf(o, "%sBlock: type:%s frame:%s", indent->indent_str().c_str(),
track_type == mkvparser::Track::kVideo ? "V" : "A",
is_key ? "I" : "P");
if (options.output_seconds)
fprintf(o, " secs:%5g", time_ns / kNanosecondsPerSecond);
else
fprintf(o, " nano:%10" PRId64, time_ns);
if (options.output_offset)
fprintf(o, " @_payload: %lld", block->m_start);
if (options.output_size)
fprintf(o, " size_payload: %lld", block->m_size);
const uint8_t KEncryptedBit = 0x1;
const uint8_t kSubSampleBit = 0x2;
const int kSignalByteSize = 1;
bool encrypted_stream = false;
if (options.output_encrypted_info) {
if (track->GetContentEncodingCount() > 0) {
// Only check the first content encoding.
const ContentEncoding* const encoding =
track->GetContentEncodingByIndex(0);
if (encoding) {
if (encoding->GetEncryptionCount() > 0) {
const ContentEncoding::ContentEncryption* const encryption =
encoding->GetEncryptionByIndex(0);
if (encryption) {
const ContentEncoding::ContentEncAESSettings& aes =
encryption->aes_settings;
if (aes.cipher_mode == 1) {
encrypted_stream = true;
}
}
}
}
}
if (encrypted_stream) {
const mkvparser::Block::Frame& frame = block->GetFrame(0);
if (frame.len > static_cast<int>(vector_data.size())) {
vector_data.resize(frame.len + 1024);
}
unsigned char* data = &vector_data[0];
if (frame.Read(reader, data) < 0) {
fprintf(stderr, "Could not read frame.\n");
return false;
}
const bool encrypted_frame = !!(data[0] & KEncryptedBit);
const bool sub_sample_encrypt = !!(data[0] & kSubSampleBit);
fprintf(o, " enc: %d", encrypted_frame ? 1 : 0);
fprintf(o, " sub: %d", sub_sample_encrypt ? 1 : 0);
if (encrypted_frame) {
uint64_t iv;
memcpy(&iv, data + kSignalByteSize, sizeof(iv));
fprintf(o, " iv: %" PRIx64, iv);
}
}
}
if (options.output_codec_info) {
const int frame_count = block->GetFrameCount();
if (frame_count > 1) {
fprintf(o, "\n");
indent->Adjust(libwebm::kIncreaseIndent);
}
for (int i = 0; i < frame_count; ++i) {
if (track_type == mkvparser::Track::kVideo) {
const mkvparser::Block::Frame& frame = block->GetFrame(i);
if (frame.len > static_cast<int>(vector_data.size())) {
vector_data.resize(frame.len + 1024);
}
unsigned char* data = &vector_data[0];
if (frame.Read(reader, data) < 0) {
fprintf(stderr, "Could not read frame.\n");
return false;
}
if (frame_count > 1)
fprintf(o, "\n%sVP8 data :", indent->indent_str().c_str());
bool encrypted_frame = false;
bool sub_sample_encrypt = false;
int frame_size = static_cast<int>(frame.len);