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shaka-packager/packager/media/formats/mp4/box_definitions_unittest.cc

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// Copyright 2014 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#include <packager/media/formats/mp4/box_definitions.h>
#include <limits>
#include <memory>
#include <gtest/gtest.h>
#include <packager/media/base/buffer_writer.h>
#include <packager/media/base/protection_system_specific_info.h>
#include <packager/media/formats/mp4/box_definitions_comparison.h>
#include <packager/media/formats/mp4/box_reader.h>
namespace shaka {
namespace media {
namespace mp4 {
namespace {
const uint8_t kData8Bytes[] = {3, 4, 5, 6, 7, 8, 9, 0};
const uint8_t kData16Bytes[] = {8, 7, 6, 5, 4, 3, 2, 1, 1, 2, 3, 4, 5, 6, 7, 8};
const uint8_t kData4[] = {1, 5, 4, 3, 15};
const uint8_t kData8[] = {1, 8, 42, 98, 156};
const uint16_t kData16[] = {1, 15, 45, 768, 60000};
const uint32_t kData32[] = {1, 24, 99, 1234, 9000000};
const uint64_t kData64[] = {1, 9000000, 12345678901234ULL, 56780909090900ULL};
const uint8_t kPsshBox[] = {0, 0, 0, 0x22, 'p', 's', 's', 'h', 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 2, 0xf0, 0x00};
const TrackType kSampleDescriptionTrackType = kVideo;
// 4-byte FourCC + 4-bytes size.
const uint32_t kBoxSize = 8;
} // namespace
template <typename T>
class BoxDefinitionsTestGeneral : public testing::Test {
public:
BoxDefinitionsTestGeneral() : buffer_(new BufferWriter) {}
BoxReader* CreateReader() {
// Create a fake skip box contains the buffer and Write it.
BufferWriter buffer;
buffer.Swap(buffer_.get());
uint32_t skip_box_size = static_cast<uint32_t>(buffer.Size() + kBoxSize);
buffer_->AppendInt(skip_box_size);
buffer_->AppendInt(static_cast<uint32_t>(FOURCC_skip));
buffer_->AppendBuffer(buffer);
bool err = false;
return BoxReader::ReadBox(buffer_->Buffer(), buffer_->Size(), &err);
}
bool ReadBack(Box* box) {
std::unique_ptr<BoxReader> reader(CreateReader());
RCHECK(reader->ScanChildren() && reader->ReadChild(box));
return true;
}
// FourCC for VideoSampleEntry is fixed, e.g. could be avc1, or encv.
bool ReadBack(VideoSampleEntry* video) {
std::unique_ptr<BoxReader> reader(CreateReader());
std::vector<VideoSampleEntry> video_entries;
RCHECK(reader->ReadAllChildren(&video_entries));
RCHECK(video_entries.size() == 1);
*video = video_entries[0];
return true;
}
// FourCC for AudioSampleEntry is fixed, e.g. could be mp4a, or enca.
bool ReadBack(AudioSampleEntry* audio) {
std::unique_ptr<BoxReader> reader(CreateReader());
std::vector<AudioSampleEntry> audio_entries;
RCHECK(reader->ReadAllChildren(&audio_entries));
RCHECK(audio_entries.size() == 1);
*audio = audio_entries[0];
return true;
}
// FourCC for TextSampleEntry is fixed, e.g. could be text, or wvtt.
bool ReadBack(TextSampleEntry* text) {
std::unique_ptr<BoxReader> reader(CreateReader());
std::vector<TextSampleEntry> text_entries;
RCHECK(reader->ReadAllChildren(&text_entries));
RCHECK(text_entries.size() == 1);
*text = text_entries[0];
return true;
}
// SampleDescription cannot parse on its own. Its type parameter should
// be preset before scanning the box.
bool ReadBack(SampleDescription* stsd) {
stsd->type = kSampleDescriptionTrackType;
std::unique_ptr<BoxReader> reader(CreateReader());
RCHECK(reader->ScanChildren() && reader->ReadChild(stsd));
return true;
}
// SampleTable contains SampleDescription, which cannot parse on its own.
bool ReadBack(SampleTable* stbl) {
stbl->description.type = kSampleDescriptionTrackType;
std::unique_ptr<BoxReader> reader(CreateReader());
RCHECK(reader->ScanChildren() && reader->ReadChild(stbl));
return true;
}
// MediaInformation contains SampleDescription, which cannot parse on its own.
bool ReadBack(MediaInformation* minf) {
minf->sample_table.description.type = kSampleDescriptionTrackType;
std::unique_ptr<BoxReader> reader(CreateReader());
RCHECK(reader->ScanChildren() && reader->ReadChild(minf));
return true;
}
// Fill the box with sample data.
void Fill(Box* box) {}
// Modify the box with another set of data.
void Modify(Box* box) {}
// Is this box optional?
bool IsOptional(const Box* box) { return false; }
// Non-full box does not have version field.
uint8_t GetAndClearVersion(Box* box) { return 0; }
// Get full box version and then reset it to 0.
uint8_t GetAndClearVersion(FullBox* full_box) {
uint8_t version = full_box->version;
full_box->version = 0;
return version;
}
void Fill(FileType* ftyp) {
ftyp->major_brand = FOURCC_dash;
ftyp->minor_version = 567;
ftyp->compatible_brands.push_back(FOURCC_iso6);
ftyp->compatible_brands.push_back(FOURCC_mp41);
ftyp->compatible_brands.push_back(FOURCC_avc1);
}
void Modify(FileType* ftyp) {
ftyp->major_brand = FOURCC_mp41;
ftyp->compatible_brands.clear();
ftyp->compatible_brands.push_back(FOURCC_dash);
}
void Fill(ProtectionSystemSpecificHeader* pssh) {
pssh->raw_box.assign(kPsshBox, kPsshBox + std::size(kPsshBox));
}
void Modify(ProtectionSystemSpecificHeader* pssh) {
pssh->raw_box[32] *= 3;
}
void Fill(SampleAuxiliaryInformationOffset* saio) {
saio->offsets.assign(kData32, kData32 + std::size(kData32));
}
void Modify(SampleAuxiliaryInformationOffset* saio) {
saio->offsets.push_back(23);
}
void Fill(SampleAuxiliaryInformationSize* saiz) {
saiz->default_sample_info_size = 0;
saiz->sample_info_sizes.assign(kData8, kData8 + std::size(kData8));
saiz->sample_count = std::size(kData8);
}
void Modify(SampleAuxiliaryInformationSize* saiz) {
saiz->default_sample_info_size = 15;
saiz->sample_info_sizes.clear();
}
void Fill(SampleEncryption* senc) {
senc->iv_size = 8;
senc->flags = SampleEncryption::kUseSubsampleEncryption;
senc->sample_encryption_entries.resize(2);
senc->sample_encryption_entries[0].initialization_vector.assign(
kData8Bytes, kData8Bytes + std::size(kData8Bytes));
senc->sample_encryption_entries[0].subsamples.resize(2);
senc->sample_encryption_entries[0].subsamples[0].clear_bytes = 17;
senc->sample_encryption_entries[0].subsamples[0].cipher_bytes = 3456;
senc->sample_encryption_entries[0].subsamples[1].clear_bytes = 1543;
senc->sample_encryption_entries[0].subsamples[1].cipher_bytes = 0;
senc->sample_encryption_entries[1] = senc->sample_encryption_entries[0];
senc->sample_encryption_entries[1].subsamples[0].clear_bytes = 0;
senc->sample_encryption_entries[1].subsamples[0].cipher_bytes = 15;
senc->sample_encryption_entries[1].subsamples[1].clear_bytes = 1988;
senc->sample_encryption_entries[1].subsamples[1].cipher_bytes = 8765;
}
void Modify(SampleEncryption* senc) {
senc->flags = 0;
senc->sample_encryption_entries.resize(1);
senc->sample_encryption_entries[0].subsamples.clear();
}
void Fill(OriginalFormat* frma) { frma->format = FOURCC_avc1; }
void Modify(OriginalFormat* frma) { frma->format = FOURCC_mp4a; }
void Fill(SchemeType* schm) {
schm->type = FOURCC_cenc;
schm->version = 12344;
}
void Modify(SchemeType* schm) { schm->version = 123; }
void Fill(TrackEncryption* tenc) {
tenc->default_is_protected = 1;
tenc->default_per_sample_iv_size = 8;
tenc->default_kid.assign(kData16Bytes,
kData16Bytes + std::size(kData16Bytes));
tenc->default_skip_byte_block = 2;
tenc->default_crypt_byte_block = 8;
tenc->version = 1;
}
void Modify(TrackEncryption* tenc) {
tenc->default_is_protected = 0;
tenc->default_per_sample_iv_size = 0;
tenc->default_skip_byte_block = 0;
tenc->default_crypt_byte_block = 0;
tenc->version = 0;
}
void Fill(SchemeInfo* schi) { Fill(&schi->track_encryption); }
void Modify(SchemeInfo* schi) { Modify(&schi->track_encryption); }
void Fill(ProtectionSchemeInfo* sinf) {
Fill(&sinf->format);
Fill(&sinf->type);
Fill(&sinf->info);
}
void Modify(ProtectionSchemeInfo* sinf) {
Modify(&sinf->type);
Modify(&sinf->info);
}
void Fill(MovieHeader* mvhd) {
mvhd->creation_time = 1234;
mvhd->modification_time = 2456;
mvhd->timescale = 48000;
mvhd->duration = 96000;
mvhd->rate = 0x010000;
mvhd->volume = 0x0100;
mvhd->next_track_id = 1;
mvhd->version = 0;
}
void Modify(MovieHeader* mvhd) {
mvhd->duration = 234141324123ULL;
mvhd->next_track_id = 3;
mvhd->version = 1;
}
void Fill(TrackHeader* tkhd) {
tkhd->creation_time = 34523443;
tkhd->modification_time = 34533443;
tkhd->track_id = 2;
tkhd->duration = 96000;
tkhd->layer = 1;
tkhd->alternate_group = 2;
tkhd->volume = 0;
tkhd->width = 800;
tkhd->height = 600;
tkhd->version = 0;
}
void Modify(TrackHeader* tkhd) {
tkhd->modification_time = 345388873443ULL;
tkhd->volume = 0x0100;
tkhd->width = 0;
tkhd->height = 0;
tkhd->version = 1;
}
void Fill(EditList* elst) {
elst->edits.resize(2);
elst->edits[0].segment_duration = 100;
elst->edits[0].media_time = -1;
elst->edits[0].media_rate_integer = 1;
elst->edits[0].media_rate_fraction = 0;
elst->edits[1].segment_duration = 300;
elst->edits[1].media_time = 0;
elst->edits[1].media_rate_integer = 1;
elst->edits[1].media_rate_fraction = 0;
elst->version = 0;
}
void Modify(EditList* elst) {
elst->edits.resize(1);
elst->edits[0].segment_duration = 0;
elst->edits[0].media_time = 20364563456LL;
elst->version = 1;
}
void Fill(Edit* edts) { Fill(&edts->list); }
void Modify(Edit* edts) { Modify(&edts->list); }
void Fill(HandlerReference* hdlr) { hdlr->handler_type = FOURCC_vide; }
void Modify(HandlerReference* hdlr) { hdlr->handler_type = FOURCC_soun; }
void Fill(ID3v2* id3v2) {
id3v2->language.code = "eng";
id3v2->id3v2_data.assign(std::begin(kData16Bytes), std::end(kData16Bytes));
}
void Modify(ID3v2* id3v2) {
id3v2->language.code = "fre";
id3v2->id3v2_data.assign(std::begin(kData8Bytes), std::end(kData8Bytes));
}
void Fill(Metadata* metadata) {
metadata->handler.handler_type = FOURCC_ID32;
Fill(&metadata->id3v2);
}
void Modify(Metadata* metadata) {
Modify(&metadata->id3v2);
}
void Fill(ColorParameters* colr) {
colr->color_parameter_type = FOURCC_nclc;
colr->color_primaries = 9;
colr->transfer_characteristics = 16;
colr->matrix_coefficients = 9;
colr->video_full_range_flag = 0;
}
void Fill(PixelAspectRatio* pasp) {
pasp->h_spacing = 5;
pasp->v_spacing = 8;
}
void Modify(PixelAspectRatio* pasp) { pasp->v_spacing *= 8; }
void Fill(CodecConfiguration* codec_configuration) {
const uint8_t kCodecConfigurationData[] = {
0x01, 0x64, 0x00, 0x1f, 0xff, 0xe1, 0x00, 0x18, 0x67, 0x64, 0x00,
0x1f, 0xac, 0xd9, 0x40, 0x50, 0x05, 0xbb, 0x01, 0x10, 0x00, 0x00,
0x3e, 0x90, 0x00, 0x0e, 0xa6, 0x00, 0xf1, 0x83, 0x19, 0x60, 0x01,
0x00, 0x06, 0x68, 0xeb, 0xe3, 0xcb, 0x22, 0xc0};
codec_configuration->data.assign(
kCodecConfigurationData,
kCodecConfigurationData + std::size(kCodecConfigurationData));
}
void Modify(CodecConfiguration* codec_configuration) {
const uint8_t kCodecConfigurationData[] = {
0x01, 0x64, 0x00, 0x1e, 0xff, 0xe1, 0x00, 0x19, 0x67, 0x64, 0x00,
0x1e, 0xac, 0xd9, 0x40, 0xa0, 0x2f, 0xf9, 0x70, 0x11, 0x00, 0x00,
0x03, 0x03, 0xe9, 0x00, 0x00, 0xea, 0x60, 0x0f, 0x16, 0x2d, 0x96,
0x01, 0x00, 0x05, 0x68, 0xeb, 0xec, 0xb2, 0x2c};
codec_configuration->data.assign(
kCodecConfigurationData,
kCodecConfigurationData + std::size(kCodecConfigurationData));
}
void Fill(VideoSampleEntry* entry) {
entry->format = FOURCC_encv;
entry->data_reference_index = 1;
entry->width = 800;
entry->height = 600;
Fill(&entry->colr);
Fill(&entry->pixel_aspect);
Fill(&entry->sinf);
Fill(&entry->codec_configuration);
const uint8_t kExtraCodecConfigData[] = {0x01, 0x02, 0x03, 0x04};
CodecConfiguration extra_codec_config;
extra_codec_config.data.assign(std::begin(kExtraCodecConfigData),
std::end(kExtraCodecConfigData));
for (FourCC fourcc : {FOURCC_dvcC, FOURCC_dvvC, FOURCC_hvcE}) {
extra_codec_config.box_type = fourcc;
entry->extra_codec_configs.push_back(extra_codec_config);
// Increment it so the boxes have different data.
extra_codec_config.data[0]++;
}
}
void Modify(VideoSampleEntry* entry) {
entry->height += 600;
Modify(&entry->codec_configuration);
}
void Fill(ElementaryStreamDescriptor* esds) {
const uint8_t kDecoderSpecificInfo[] = {18, 16};
esds->es_descriptor.mutable_decoder_config_descriptor()->set_object_type(
ObjectType::kISO_14496_3);
std::vector<uint8_t> decoder_specific_info(
kDecoderSpecificInfo,
kDecoderSpecificInfo + sizeof(kDecoderSpecificInfo));
esds->es_descriptor.mutable_decoder_config_descriptor()
->mutable_decoder_specific_info_descriptor()
->set_data(decoder_specific_info);
}
void Fill(DTSSpecific* ddts) {
const uint8_t kDdtsExtraData[] = {0xe4, 0x7c, 0, 4, 0, 0x0f, 0};
ddts->max_bitrate = 768000;
ddts->avg_bitrate = 768000;
ddts->sampling_frequency = 48000;
ddts->pcm_sample_depth = 16;
ddts->extra_data.assign(kDdtsExtraData,
kDdtsExtraData + std::size(kDdtsExtraData));
}
void Modify(DTSSpecific* ddts) {
ddts->pcm_sample_depth = 24;
}
void Fill(AC3Specific* dac3) {
const uint8_t kAc3Data[] = {0x50, 0x11, 0x60};
dac3->data.assign(kAc3Data, kAc3Data + std::size(kAc3Data));
}
void Modify(AC3Specific* dac3) {
const uint8_t kAc3Data[] = {0x50, 0x11, 0x40};
dac3->data.assign(kAc3Data, kAc3Data + std::size(kAc3Data));
}
void Fill(EC3Specific* dec3) {
const uint8_t kEc3Data[] = {0x08, 0x00, 0x20, 0x0f, 0x00};
dec3->data.assign(kEc3Data, kEc3Data + std::size(kEc3Data));
}
void Modify(EC3Specific* dec3) {
const uint8_t kEc3Data[] = {0x07, 0x00, 0x60, 0x04, 0x00};
dec3->data.assign(kEc3Data, kEc3Data + std::size(kEc3Data));
}
void Fill(OpusSpecific* dops) {
const uint8_t kOpusIdentificationHeader[] = {
0x4f, 0x70, 0x75, 0x73, 0x48, 0x65, 0x61, 0x64, 0x01, 0x02,
0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10, 0x01, 0x11};
dops->opus_identification_header.assign(
kOpusIdentificationHeader,
kOpusIdentificationHeader + std::size(kOpusIdentificationHeader));
dops->preskip = 0x0403;
}
void Modify(OpusSpecific* dops) {
dops->opus_identification_header.resize(
dops->opus_identification_header.size() - 1);
}
void Fill(FlacSpecific* dfla) {
const uint8_t kFlacData[] = {0x50, 0x11, 0x60};
dfla->data.assign(std::begin(kFlacData), std::end(kFlacData));
}
void Modify(FlacSpecific* dfla) {
const uint8_t kFlacData[] = {0x50, 0x11, 0x40};
dfla->data.assign(std::begin(kFlacData), std::end(kFlacData));
}
void Fill(AudioSampleEntry* enca) {
enca->format = FOURCC_enca;
enca->data_reference_index = 2;
enca->channelcount = 5;
enca->samplesize = 16;
enca->samplerate = 44100;
Fill(&enca->sinf);
Fill(&enca->esds);
}
void Modify(AudioSampleEntry* enca) { enca->channelcount = 2; }
void Fill(WebVTTConfigurationBox* vttc) {
vttc->config = "WEBVTT";
}
void Modify(WebVTTConfigurationBox* vttc) {
vttc->config = "WEBVTT\n"
"Region: id=someting width=40% lines=3";
}
void Fill(WebVTTSourceLabelBox* vlab) {
vlab->source_label = "some_label";
}
void Modify(WebVTTSourceLabelBox* vlab) {
vlab->source_label = "another_label";
}
void Fill(TextSampleEntry* wvtt) {
wvtt->format = FOURCC_wvtt;
Fill(&wvtt->config);
Fill(&wvtt->label);
}
void Modify(TextSampleEntry* wvtt) {
Modify(&wvtt->config);
Modify(&wvtt->label);
}
void Fill(SampleDescription* stsd) {
stsd->type = kSampleDescriptionTrackType;
stsd->video_entries.resize(1);
Fill(&stsd->video_entries[0]);
}
void Fill(DecodingTimeToSample* stts) {
stts->decoding_time.resize(2);
stts->decoding_time[0].sample_count = 3;
stts->decoding_time[0].sample_delta = 5;
stts->decoding_time[1].sample_count = 2;
stts->decoding_time[1].sample_delta = 9;
}
void Modify(DecodingTimeToSample* stts) {
stts->decoding_time.resize(3);
stts->decoding_time[2].sample_count = 9;
stts->decoding_time[2].sample_delta = 4;
}
void Fill(CompositionTimeToSample* ctts) {
ctts->composition_offset.resize(2);
ctts->composition_offset[0].sample_count = 3;
ctts->composition_offset[0].sample_offset = 5;
ctts->composition_offset[1].sample_count = 2;
ctts->composition_offset[1].sample_offset = 9;
ctts->version = 0;
}
void Modify(CompositionTimeToSample* ctts) {
ctts->composition_offset.resize(1);
ctts->composition_offset[0].sample_count = 6;
ctts->composition_offset[0].sample_offset = -9;
ctts->version = 1;
}
void Fill(SampleToChunk* stsc) {
stsc->chunk_info.resize(2);
stsc->chunk_info[0].first_chunk = 1;
stsc->chunk_info[0].samples_per_chunk = 5;
stsc->chunk_info[0].sample_description_index = 0;
stsc->chunk_info[1].first_chunk = 5;
stsc->chunk_info[1].samples_per_chunk = 2;
stsc->chunk_info[1].sample_description_index = 1;
}
void Modify(SampleToChunk* stsc) {
stsc->chunk_info.resize(4);
stsc->chunk_info[2].first_chunk = 7;
stsc->chunk_info[2].samples_per_chunk = 8;
stsc->chunk_info[2].sample_description_index = 1;
stsc->chunk_info[3].first_chunk = 9;
stsc->chunk_info[3].samples_per_chunk = 12;
stsc->chunk_info[3].sample_description_index = 0;
}
void Fill(SampleSize* stsz) {
stsz->sample_size = 0;
stsz->sizes.assign(kData8, kData8 + std::size(kData8));
stsz->sample_count = std::size(kData8);
}
void Modify(SampleSize* stsz) {
stsz->sample_size = 35;
stsz->sizes.clear();
}
void Fill(CompactSampleSize* stz2) {
stz2->field_size = 4;
stz2->sizes.assign(kData4, kData4 + std::size(kData4));
}
void Modify(CompactSampleSize* stz2) {
stz2->field_size = 8;
stz2->sizes.assign(kData8, kData8 + std::size(kData8));
}
void Fill(ChunkLargeOffset* co64) {
co64->offsets.assign(kData64, kData64 + std::size(kData64));
}
void Modify(ChunkLargeOffset* co64) { co64->offsets.pop_back(); }
void Fill(ChunkOffset* stco) {
stco->offsets.assign(kData32, kData32 + std::size(kData32));
}
void Modify(ChunkOffset* stco) { stco->offsets.push_back(10); }
void Fill(SyncSample* stss) {
stss->sample_number.assign(kData32, kData32 + std::size(kData32));
}
void Modify(SyncSample* stss) { stss->sample_number.pop_back(); }
void Fill(SampleGroupDescription* sgpd) {
sgpd->grouping_type = FOURCC_seig;
sgpd->cenc_sample_encryption_info_entries.resize(2);
sgpd->cenc_sample_encryption_info_entries[0].is_protected = 1;
sgpd->cenc_sample_encryption_info_entries[0].per_sample_iv_size = 8;
sgpd->cenc_sample_encryption_info_entries[0].key_id.assign(
kData16Bytes, kData16Bytes + std::size(kData16Bytes));
sgpd->cenc_sample_encryption_info_entries[0].crypt_byte_block = 3;
sgpd->cenc_sample_encryption_info_entries[0].skip_byte_block = 7;
sgpd->cenc_sample_encryption_info_entries[1].is_protected = 0;
sgpd->cenc_sample_encryption_info_entries[1].per_sample_iv_size = 0;
sgpd->cenc_sample_encryption_info_entries[1].key_id.resize(16);
sgpd->version = 1;
}
void Modify(SampleGroupDescription* sgpd) {
sgpd->cenc_sample_encryption_info_entries.resize(1);
sgpd->cenc_sample_encryption_info_entries[0].is_protected = 1;
sgpd->cenc_sample_encryption_info_entries[0].per_sample_iv_size = 0;
sgpd->cenc_sample_encryption_info_entries[0].constant_iv.assign(
kData16Bytes, kData16Bytes + std::size(kData16Bytes));
sgpd->cenc_sample_encryption_info_entries[0].key_id.resize(16);
sgpd->version = 1;
}
void Fill(SampleToGroup* sbgp) {
sbgp->grouping_type = FOURCC_seig;
sbgp->entries.resize(2);
sbgp->entries[0].sample_count = 3;
sbgp->entries[0].group_description_index = 0x10002;
sbgp->entries[1].sample_count = 1212;
sbgp->entries[1].group_description_index = 0x10001;
}
void Modify(SampleToGroup* sbgp) {
sbgp->entries.resize(1);
sbgp->entries[0].sample_count = 5;
sbgp->entries[0].group_description_index = 0x10001;
}
void Fill(SampleTable* stbl) {
Fill(&stbl->description);
Fill(&stbl->decoding_time_to_sample);
Fill(&stbl->composition_time_to_sample);
Fill(&stbl->sample_to_chunk);
Fill(&stbl->sample_size);
Fill(&stbl->chunk_large_offset);
Fill(&stbl->sync_sample);
stbl->sample_group_descriptions.resize(1);
Fill(&stbl->sample_group_descriptions[0]);
stbl->sample_to_groups.resize(1);
Fill(&stbl->sample_to_groups[0]);
}
void Modify(SampleTable* stbl) {
Modify(&stbl->chunk_large_offset);
Modify(&stbl->sync_sample);
stbl->sample_group_descriptions.clear();
stbl->sample_to_groups.clear();
}
void Fill(MediaHeader* mdhd) {
mdhd->creation_time = 124231432;
mdhd->modification_time =
static_cast<uint64_t>(std::numeric_limits<uint32_t>::max()) + 1;
mdhd->timescale = 50000;
mdhd->duration = 250000;
mdhd->language.code = "abc";
mdhd->version = 1;
}
void Modify(MediaHeader* mdhd) {
mdhd->creation_time = 2;
mdhd->modification_time = std::numeric_limits<uint32_t>::max();
mdhd->language.code = "und";
mdhd->version = 0;
}
void Fill(VideoMediaHeader* vmhd) {
vmhd->graphicsmode = 4123;
vmhd->opcolor_red = 323;
vmhd->opcolor_green = 2135;
vmhd->opcolor_blue = 2387;
}
void Modify(VideoMediaHeader* vmhd) { vmhd->graphicsmode *= 2; }
void Fill(SoundMediaHeader* smhd) { smhd->balance = 8762; }
void Modify(SoundMediaHeader* smhd) { smhd->balance /= 2; }
void Fill(SubtitleMediaHeader* sthd) {}
void Modify(SubtitleMediaHeader* sthd) {}
void Fill(DataEntryUrl* url) {
url->flags = 2;
url->location.assign(kData8, kData8 + std::size(kData8));
}
void Modify(DataEntryUrl* url) {
url->flags += 1;
url->location.assign(kData4, kData4 + std::size(kData4));
}
void Fill(DataReference* dref) {
dref->data_entry.resize(2);
Fill(&dref->data_entry[0]);
Fill(&dref->data_entry[1]);
dref->data_entry[1].location.assign(kData4, kData4 + std::size(kData4));
}
void Modify(DataReference* dref) {
dref->data_entry.resize(3);
Fill(&dref->data_entry[2]);
dref->data_entry[2].location.push_back(100);
}
void Fill(DataInformation* dinf) { Fill(&dinf->dref); }
void Modify(DataInformation* dinf) { Modify(&dinf->dref); }
void Fill(MediaInformation* minf) {
Fill(&minf->dinf);
Fill(&minf->sample_table);
Fill(&minf->vmhd);
}
void Modify(MediaInformation* minf) {
Modify(&minf->dinf);
Modify(&minf->sample_table);
}
void Fill(Media* mdia) {
Fill(&mdia->header);
Fill(&mdia->handler);
Fill(&mdia->information);
}
void Modify(Media* mdia) { Modify(&mdia->information); }
void Fill(Track* trak) {
Fill(&trak->header);
Fill(&trak->media);
Fill(&trak->edit);
}
void Modify(Track* trak) { Modify(&trak->media); }
void Fill(MovieExtendsHeader* mehd) {
mehd->fragment_duration = 23489038090ULL;
mehd->version = 1;
}
void Modify(MovieExtendsHeader* mehd) {
mehd->fragment_duration = 123456;
mehd->version = 0;
}
void Fill(TrackExtends* trex) {
trex->track_id = 2;
trex->default_sample_description_index = 3;
trex->default_sample_duration = 832;
trex->default_sample_size = 89723;
trex->default_sample_flags = 12;
}
void Modify(TrackExtends* trex) { trex->default_sample_size = 543; }
void Fill(MovieExtends* mvex) {
Fill(&mvex->header);
mvex->tracks.resize(2);
Fill(&mvex->tracks[0]);
mvex->tracks[1].track_id = 1;
mvex->tracks[1].default_sample_description_index = 13;
mvex->tracks[1].default_sample_duration = 97687;
mvex->tracks[1].default_sample_size = 1232;
mvex->tracks[1].default_sample_flags = 6;
}
void Modify(MovieExtends* mvex) { mvex->tracks.resize(1); }
void Fill(Movie* moov) {
Fill(&moov->header);
Fill(&moov->metadata);
Fill(&moov->extends);
moov->tracks.resize(2);
Fill(&moov->tracks[0]);
Fill(&moov->tracks[1]);
}
void Modify(Movie* moov) { moov->tracks.resize(1); }
void Fill(TrackFragmentDecodeTime* tfdt) {
tfdt->decode_time = 234029673820ULL;
tfdt->version = 1;
}
void Modify(TrackFragmentDecodeTime* tfdt) {
tfdt->decode_time = 4567;
tfdt->version = 0;
}
void Fill(MovieFragmentHeader* mfhd) { mfhd->sequence_number = 23235; }
void Modify(MovieFragmentHeader* mfhd) { mfhd->sequence_number = 67890; }
void Fill(TrackFragmentHeader* tfhd) {
tfhd->flags = TrackFragmentHeader::kSampleDescriptionIndexPresentMask |
TrackFragmentHeader::kDefaultSampleDurationPresentMask |
TrackFragmentHeader::kDefaultSampleSizePresentMask |
TrackFragmentHeader::kDefaultSampleFlagsPresentMask;
tfhd->track_id = 1;
tfhd->sample_description_index = 233;
tfhd->default_sample_duration = 42545;
tfhd->default_sample_size = 8765;
tfhd->default_sample_flags = 65;
}
void Modify(TrackFragmentHeader* tfhd) { tfhd->default_sample_size = 888; }
void Fill(TrackFragmentRun* trun) {
trun->flags = TrackFragmentRun::kDataOffsetPresentMask |
TrackFragmentRun::kSampleDurationPresentMask |
TrackFragmentRun::kSampleSizePresentMask |
TrackFragmentRun::kSampleFlagsPresentMask |
TrackFragmentRun::kSampleCompTimeOffsetsPresentMask;
trun->data_offset = 783246;
trun->sample_count = std::size(kData32);
trun->sample_flags.assign(kData32, kData32 + std::size(kData32));
trun->sample_sizes = trun->sample_flags;
trun->sample_sizes[0] += 1000;
trun->sample_durations = trun->sample_flags;
trun->sample_durations[1] += 2343;
trun->sample_composition_time_offsets.assign(kData32,
kData32 + std::size(kData32));
trun->sample_composition_time_offsets[2] = -89782;
trun->version = 1;
}
void Modify(TrackFragmentRun* trun) {
trun->flags |= TrackFragmentRun::kFirstSampleFlagsPresentMask;
trun->flags &= ~TrackFragmentRun::kSampleFlagsPresentMask;
trun->sample_flags.resize(1);
trun->sample_composition_time_offsets[2] = 9;
trun->version = 0;
}
void Fill(TrackFragment* traf) {
Fill(&traf->header);
traf->runs.resize(1);
Fill(&traf->runs[0]);
Fill(&traf->decode_time);
Fill(&traf->auxiliary_offset);
Fill(&traf->auxiliary_size);
}
void Modify(TrackFragment* traf) {
Modify(&traf->header);
Modify(&traf->decode_time);
traf->sample_group_descriptions.resize(2);
Fill(&traf->sample_group_descriptions[0]);
traf->sample_group_descriptions[1].grouping_type = FOURCC_roll;
traf->sample_group_descriptions[1].audio_roll_recovery_entries.resize(1);
traf->sample_group_descriptions[1]
.audio_roll_recovery_entries[0]
.roll_distance = -10;
traf->sample_to_groups.resize(2);
Fill(&traf->sample_to_groups[0]);
Modify(&traf->sample_to_groups[1]);
traf->sample_to_groups[1].grouping_type = FOURCC_roll;
}
void Fill(MovieFragment* moof) {
Fill(&moof->header);
moof->tracks.resize(1);
Fill(&moof->tracks[0]);
}
void Modify(MovieFragment* moof) {
moof->tracks.resize(2);
Fill(&moof->tracks[1]);
Modify(&moof->tracks[1]);
}
void Fill(SegmentIndex* sidx) {
sidx->reference_id = 3;
sidx->timescale = 56700;
sidx->earliest_presentation_time = 234;
sidx->first_offset = 876223;
sidx->references.resize(2);
sidx->references[0].reference_type = true;
sidx->references[0].referenced_size = 23424;
sidx->references[0].subsegment_duration = 9083423;
sidx->references[0].starts_with_sap = true;
sidx->references[0].sap_type = SegmentReference::Type1;
sidx->references[0].sap_delta_time = 2382;
sidx->references[1].reference_type = false;
sidx->references[1].referenced_size = 34572;
sidx->references[1].subsegment_duration = 7234323;
sidx->references[1].starts_with_sap = false;
sidx->references[1].sap_type = SegmentReference::Type5;
sidx->references[1].sap_delta_time = 53;
sidx->version = 0;
}
void Modify(SegmentIndex* sidx) {
sidx->earliest_presentation_time = 2348677865434ULL;
sidx->references.resize(3);
sidx->references[2] = sidx->references[1];
sidx->references[2].subsegment_duration = 87662;
sidx->version = 1;
}
void Fill(CueSourceIDBox* vsid) {
vsid->source_id = 5;
}
void Modify(CueSourceIDBox* vsid) {
vsid->source_id = 100;
}
void Fill(CueTimeBox* ctim) {
ctim->cue_current_time = "00:19:00.000";
}
void Modify(CueTimeBox* ctim) {
ctim->cue_current_time = "00:20:01.291";
}
void Fill(CueIDBox* iden) {
iden->cue_id = "some_id";
}
void Modify(CueIDBox* iden) {
iden->cue_id = "another_id";
}
void Fill(CueSettingsBox* sttg) {
sttg->settings = "align:left";
}
void Modify(CueSettingsBox* sttg) {
sttg->settings = "align:right";
}
void Fill(CuePayloadBox* payl) {
payl->cue_text = "hello";
}
void Modify(CuePayloadBox* payl) {
payl->cue_text = "hi";
}
void Fill(VTTEmptyCueBox* vtte) {}
void Modify(VTTEmptyCueBox* vtte) {}
void Fill(VTTAdditionalTextBox* vtta) {
vtta->cue_additional_text = "NOTE some comment";
}
void Modify(VTTAdditionalTextBox* vtta) {
vtta->cue_additional_text = "NOTE another comment";
}
void Fill(VTTCueBox* vttc) {
Fill(&vttc->cue_source_id);
Fill(&vttc->cue_id);
Fill(&vttc->cue_time);
Fill(&vttc->cue_settings);
Fill(&vttc->cue_payload);
}
void Modify(VTTCueBox* vttc) {
Modify(&vttc->cue_source_id);
Modify(&vttc->cue_id);
Modify(&vttc->cue_time);
Modify(&vttc->cue_settings);
Modify(&vttc->cue_payload);
}
bool IsOptional(const ID3v2* box) { return true; }
bool IsOptional(const Metadata* box) { return true; }
bool IsOptional(const SampleAuxiliaryInformationOffset* box) { return true; }
bool IsOptional(const SampleAuxiliaryInformationSize* box) { return true; }
bool IsOptional(const SampleEncryption* box) { return true; }
bool IsOptional(const ProtectionSchemeInfo* box) { return true; }
bool IsOptional(const EditList* box) { return true; }
bool IsOptional(const Edit* box) { return true; }
bool IsOptional(const CodecConfiguration* box) { return true; }
bool IsOptional(const PixelAspectRatio* box) { return true; }
bool IsOptional(const VideoSampleEntry* box) { return true; }
bool IsOptional(const ElementaryStreamDescriptor* box) { return true; }
bool IsOptional(const AC3Specific* box) { return true; }
bool IsOptional(const EC3Specific* box) { return true; }
bool IsOptional(const AudioSampleEntry* box) { return true; }
// Recommended, but optional.
bool IsOptional(const ProtectionSystemSpecificHeader* box) { return true; }
bool IsOptional(const WebVTTSourceLabelBox* box) { return true; }
bool IsOptional(const CompositionTimeToSample* box) { return true; }
bool IsOptional(const SyncSample* box) { return true; }
bool IsOptional(const SampleGroupDescription* box) { return true; }
bool IsOptional(const SampleToGroup* box) { return true; }
bool IsOptional(const MovieExtendsHeader* box) { return true; }
bool IsOptional(const MovieExtends* box) { return true; }
bool IsOptional(const CueSourceIDBox* box) { return true; }
bool IsOptional(const CueIDBox* box) { return true; }
bool IsOptional(const CueTimeBox* box) { return true; }
bool IsOptional(const CueSettingsBox* box) { return true; }
bool IsOptional(const DTSSpecific* box) {return true; }
bool IsOptional(const OpusSpecific* box) {return true; }
protected:
std::unique_ptr<BufferWriter> buffer_;
};
// GTEST support a maximum of 50 types in the template list, so we have to
// break it into two groups.
typedef testing::Types<FileType,
SegmentType,
ProtectionSystemSpecificHeader,
SampleAuxiliaryInformationOffset,
SampleAuxiliaryInformationSize,
OriginalFormat,
SchemeType,
TrackEncryption,
SchemeInfo,
ProtectionSchemeInfo,
MovieHeader,
TrackHeader,
EditList,
Edit,
HandlerReference,
ID3v2,
Metadata,
PixelAspectRatio,
VideoSampleEntry,
ElementaryStreamDescriptor,
DTSSpecific,
AC3Specific,
EC3Specific,
OpusSpecific,
AudioSampleEntry,
WebVTTConfigurationBox,
WebVTTSourceLabelBox,
TextSampleEntry,
SampleDescription,
DecodingTimeToSample,
CompositionTimeToSample,
SampleToChunk,
SampleSize,
CompactSampleSize,
ChunkLargeOffset,
ChunkOffset,
SyncSample,
SampleGroupDescription,
SampleToGroup,
SampleTable>
Boxes;
typedef testing::Types<MediaHeader,
VideoMediaHeader,
SoundMediaHeader,
SubtitleMediaHeader,
DataEntryUrl,
DataReference,
DataInformation,
MediaInformation,
Media,
Track,
MovieExtendsHeader,
TrackExtends,
MovieExtends,
Movie,
TrackFragmentDecodeTime,
MovieFragmentHeader,
TrackFragmentHeader,
TrackFragmentRun,
TrackFragment,
MovieFragment,
SegmentIndex,
CueSourceIDBox,
CueTimeBox,
CueIDBox,
CueSettingsBox,
CuePayloadBox,
VTTEmptyCueBox,
VTTAdditionalTextBox,
VTTCueBox>
Boxes2;
TYPED_TEST_CASE_P(BoxDefinitionsTestGeneral);
TYPED_TEST_P(BoxDefinitionsTestGeneral, WriteHeader) {
TypeParam box;
LOG(INFO) << "Processing " << FourCCToString(box.BoxType());
this->Fill(&box);
box.WriteHeader(this->buffer_.get());
// Box header size should be either 8 bytes or 12 bytes.
EXPECT_TRUE(this->buffer_->Size() == 8 || this->buffer_->Size() == 12);
}
TYPED_TEST_P(BoxDefinitionsTestGeneral, WriteReadbackCompare) {
TypeParam box;
LOG(INFO) << "Processing " << FourCCToString(box.BoxType());
this->Fill(&box);
box.Write(this->buffer_.get());
TypeParam box_readback;
ASSERT_TRUE(this->ReadBack(&box_readback));
ASSERT_EQ(box, box_readback);
}
TYPED_TEST_P(BoxDefinitionsTestGeneral, WriteModifyWrite) {
TypeParam box;
LOG(INFO) << "Processing " << FourCCToString(box.BoxType());
this->Fill(&box);
// Save the expected version set earlier in function |Fill|, then clear
// the version, expecting box.Write set version as expected.
uint8_t version = this->GetAndClearVersion(&box);
box.Write(this->buffer_.get());
EXPECT_EQ(version, this->GetAndClearVersion(&box));
this->buffer_->Clear();
this->Modify(&box);
version = this->GetAndClearVersion(&box);
box.Write(this->buffer_.get());
EXPECT_EQ(version, this->GetAndClearVersion(&box));
TypeParam box_readback;
ASSERT_TRUE(this->ReadBack(&box_readback));
ASSERT_EQ(box, box_readback);
}
TYPED_TEST_P(BoxDefinitionsTestGeneral, Empty) {
TypeParam box;
LOG(INFO) << "Processing " << FourCCToString(box.BoxType());
if (this->IsOptional(&box)) {
ASSERT_EQ(0u, box.ComputeSize());
} else {
ASSERT_NE(0u, box.ComputeSize());
}
}
REGISTER_TYPED_TEST_CASE_P(BoxDefinitionsTestGeneral,
WriteHeader,
WriteReadbackCompare,
WriteModifyWrite,
Empty);
INSTANTIATE_TYPED_TEST_CASE_P(BoxDefinitionTypedTests,
BoxDefinitionsTestGeneral,
Boxes);
INSTANTIATE_TYPED_TEST_CASE_P(BoxDefinitionTypedTests2,
BoxDefinitionsTestGeneral,
Boxes2);
// Test other cases of box input.
class BoxDefinitionsTest : public BoxDefinitionsTestGeneral<Box> {};
TEST_F(BoxDefinitionsTest, MediaHandlerType) {
Media media;
Fill(&media);
// Clear handler type. When this box is written, it will derive handler type
// from sample table description.
media.handler.handler_type = FOURCC_NULL;
media.information.sample_table.description.type = kVideo;
media.Write(this->buffer_.get());
Media media_readback;
ASSERT_TRUE(ReadBack(&media_readback));
ASSERT_EQ(FOURCC_vide, media_readback.handler.handler_type);
}
TEST_F(BoxDefinitionsTest, AvcCodecConfiguration) {
CodecConfiguration codec_configuration;
Fill(&codec_configuration);
codec_configuration.box_type = FOURCC_avcC;
codec_configuration.Write(this->buffer_.get());
// Should inherit from Box.
EXPECT_EQ(
8u, codec_configuration.ComputeSize() - codec_configuration.data.size());
CodecConfiguration codec_configuration_readback;
// BoxType should be provided before parsing the box.
codec_configuration_readback.box_type = FOURCC_avcC;
ASSERT_TRUE(ReadBack(&codec_configuration_readback));
EXPECT_EQ(codec_configuration, codec_configuration_readback);
}
TEST_F(BoxDefinitionsTest, VPCodecConfiguration) {
CodecConfiguration codec_configuration;
Fill(&codec_configuration);
codec_configuration.box_type = FOURCC_vpcC;
codec_configuration.Write(this->buffer_.get());
// Should inherit from FullBox.
EXPECT_EQ(
12u, codec_configuration.ComputeSize() - codec_configuration.data.size());
CodecConfiguration codec_configuration_readback;
// BoxType should be provided before parsing the box.
codec_configuration_readback.box_type = FOURCC_vpcC;
ASSERT_TRUE(ReadBack(&codec_configuration_readback));
EXPECT_EQ(codec_configuration, codec_configuration_readback);
}
TEST_F(BoxDefinitionsTest, DTSSampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_dtse;
entry.data_reference_index = 2;
entry.channelcount = 5;
entry.samplesize = 16;
entry.samplerate = 44100;
Fill(&entry.ddts);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, AC3SampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_ac_3;
entry.data_reference_index = 2;
entry.channelcount = 5;
entry.samplesize = 16;
entry.samplerate = 44100;
Fill(&entry.dac3);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, MHA1SampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_mha1;
entry.data_reference_index = 2;
entry.channelcount = 5;
entry.samplesize = 16;
entry.samplerate = 44100;
Fill(&entry.mhac);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, EC3SampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_ec_3;
entry.data_reference_index = 2;
entry.channelcount = 5;
entry.samplesize = 16;
entry.samplerate = 44100;
Fill(&entry.dec3);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, AC4SampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_ac_4;
entry.data_reference_index = 2;
entry.channelcount = 6;
entry.samplesize = 16;
entry.samplerate = 48000;
Fill(&entry.dac4);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, OpusSampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_Opus;
entry.data_reference_index = 2;
entry.channelcount = 2;
entry.samplesize = 16;
entry.samplerate = 48000;
Fill(&entry.dops);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, FlacSampleEntry) {
AudioSampleEntry entry;
entry.format = FOURCC_fLaC;
entry.data_reference_index = 2;
entry.channelcount = 5;
entry.samplesize = 16;
entry.samplerate = 44100;
Fill(&entry.dfla);
entry.Write(this->buffer_.get());
AudioSampleEntry entry_readback;
ASSERT_TRUE(ReadBack(&entry_readback));
ASSERT_EQ(entry, entry_readback);
}
TEST_F(BoxDefinitionsTest, SampleEntryExtraCodecConfigs) {
VideoSampleEntry entry;
Fill(&entry);
const uint8_t kExpectedVector[] = {
0, 0, 0, 12, 'd', 'v', 'c', 'C', 1, 2, 3, 4,
0, 0, 0, 12, 'd', 'v', 'v', 'C', 2, 2, 3, 4,
0, 0, 0, 12, 'h', 'v', 'c', 'E', 3, 2, 3, 4,
};
const std::vector<uint8_t> expected_vector(std::begin(kExpectedVector),
std::end(kExpectedVector));
EXPECT_EQ(expected_vector, entry.ExtraCodecConfigsAsVector());
VideoSampleEntry new_entry;
ASSERT_TRUE(new_entry.ParseExtraCodecConfigsVector(expected_vector));
EXPECT_EQ(entry.extra_codec_configs, new_entry.extra_codec_configs);
}
TEST_F(BoxDefinitionsTest, CompactSampleSize_FieldSize16) {
CompactSampleSize stz2;
stz2.field_size = 16;
stz2.sizes.assign(kData16, kData16 + std::size(kData16));
stz2.Write(this->buffer_.get());
CompactSampleSize stz2_readback;
ASSERT_TRUE(ReadBack(&stz2_readback));
ASSERT_EQ(stz2, stz2_readback);
}
TEST_F(BoxDefinitionsTest, ChunkLargeOffsetSmallOffset) {
ChunkLargeOffset co64;
co64.offsets.assign(kData32, kData32 + std::size(kData32));
co64.Write(this->buffer_.get());
// The data is stored in ChunkOffset box instead.
ChunkOffset stco;
ASSERT_TRUE(ReadBack(&stco));
ASSERT_EQ(co64, stco);
}
TEST_F(BoxDefinitionsTest, TrackFragmentHeader_NoSampleSize) {
TrackFragmentHeader tfhd;
Fill(&tfhd);
tfhd.flags &= ~TrackFragmentHeader::kDefaultSampleSizePresentMask;
tfhd.Write(this->buffer_.get());
TrackFragmentHeader tfhd_readback;
ASSERT_TRUE(ReadBack(&tfhd_readback));
EXPECT_EQ(0u, tfhd_readback.default_sample_size);
tfhd.default_sample_size = 0;
ASSERT_EQ(tfhd, tfhd_readback);
}
TEST_F(BoxDefinitionsTest, TrackFragmentRun_NoSampleSize) {
TrackFragmentRun trun;
Fill(&trun);
trun.flags &= ~TrackFragmentRun::kSampleSizePresentMask;
trun.Write(this->buffer_.get());
TrackFragmentRun trun_readback;
ASSERT_TRUE(ReadBack(&trun_readback));
EXPECT_TRUE(trun_readback.sample_sizes.empty());
trun.sample_sizes.clear();
ASSERT_EQ(trun, trun_readback);
}
TEST_F(BoxDefinitionsTest, TrackEncryptionConstantIv) {
TrackEncryption tenc;
tenc.default_is_protected = 1;
tenc.default_per_sample_iv_size = 0;
tenc.default_kid.assign(kData16Bytes, kData16Bytes + std::size(kData16Bytes));
tenc.default_constant_iv.assign(kData16Bytes,
kData16Bytes + std::size(kData16Bytes));
tenc.Write(buffer_.get());
TrackEncryption tenc_readback;
ASSERT_TRUE(ReadBack(&tenc_readback));
ASSERT_EQ(tenc, tenc_readback);
}
TEST_F(BoxDefinitionsTest, SampleEncryptionWithIvKnownWhenReading) {
SampleEncryption senc;
Fill(&senc);
senc.Write(buffer_.get());
SampleEncryption senc_readback;
senc_readback.iv_size = senc.iv_size;
ASSERT_TRUE(ReadBack(&senc_readback));
EXPECT_EQ(0u, senc_readback.sample_encryption_data.size());
EXPECT_NE(0u, senc_readback.sample_encryption_entries.size());
ASSERT_EQ(senc, senc_readback);
Modify(&senc);
senc.Write(buffer_.get());
ASSERT_TRUE(ReadBack(&senc_readback));
ASSERT_EQ(senc, senc_readback);
}
TEST_F(BoxDefinitionsTest, SampleEncryptionWithIvUnknownWhenReading) {
SampleEncryption senc;
Fill(&senc);
senc.Write(buffer_.get());
SampleEncryption senc_readback;
const size_t kInvalidIvSize = 1;
senc_readback.iv_size = kInvalidIvSize;
ASSERT_TRUE(ReadBack(&senc_readback));
EXPECT_NE(0u, senc_readback.sample_encryption_data.size());
EXPECT_EQ(0u, senc_readback.sample_encryption_entries.size());
std::vector<SampleEncryptionEntry> sample_encryption_entries;
ASSERT_TRUE(senc_readback.ParseFromSampleEncryptionData(
senc.iv_size, &sample_encryption_entries));
ASSERT_EQ(senc.sample_encryption_entries, sample_encryption_entries);
}
} // namespace mp4
} // namespace media
} // namespace shaka
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