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Copy pathsrs_kernel_mp4.cpp
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6377 lines (5103 loc) · 164 KB
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/**
* The MIT License (MIT)
*
* Copyright (c) 2013-2017 OSSRS(winlin)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_kernel_mp4.hpp>
#include <srs_kernel_log.hpp>
#include <srs_kernel_error.hpp>
#include <srs_kernel_stream.hpp>
#include <srs_core_autofree.hpp>
#include <srs_kernel_io.hpp>
#include <srs_kernel_utility.hpp>
#include <srs_kernel_buffer.hpp>
#include <string.h>
#include <sstream>
#include <iomanip>
using namespace std;
#define SRS_MP4_EOF_SIZE 0
#define SRS_MP4_USE_LARGE_SIZE 1
#define SRS_MP4_BUF_SIZE 4096
stringstream& srs_padding(stringstream& ss, SrsMp4DumpContext dc, int tab = 4)
{
for (int i = 0; i < dc.level; i++) {
for (int j = 0; j < tab; j++) {
ss << " ";
}
}
return ss;
}
stringstream& srs_print_mp4_type(stringstream& ss, uint32_t v)
{
ss << char(v>>24) << char(v>>16) << char(v>>8) << char(v);
return ss;
}
#define SrsSummaryCount 8
template<typename T>
stringstream& srs_dumps_array(std::vector<T>&arr, stringstream& ss, SrsMp4DumpContext dc,
void (*pfn)(T&, stringstream&, SrsMp4DumpContext),
void (*delimiter)(stringstream&,SrsMp4DumpContext))
{
int limit = arr.size();
if (dc.summary) {
limit = srs_min(SrsSummaryCount, limit);
}
for (size_t i = 0; i < limit; i++) {
T& elem = arr[i];
pfn(elem, ss, dc);
if (i < limit - 1) {
delimiter(ss, dc);
}
}
return ss;
}
template<typename T>
stringstream& srs_dumps_array(T* arr, int size, stringstream& ss, SrsMp4DumpContext dc,
void (*pfn)(T&, stringstream&, SrsMp4DumpContext),
void (*delimiter)(stringstream&, SrsMp4DumpContext))
{
int limit = size;
if (dc.summary) {
limit = srs_min(SrsSummaryCount, limit);
}
for (size_t i = 0; i < limit; i++) {
T& elem = arr[i];
pfn(elem, ss, dc);
if (i < limit - 1) {
delimiter(ss, dc);
}
}
return ss;
}
void srs_delimiter_inline(stringstream& ss, SrsMp4DumpContext dc)
{
ss << ",";
}
void srs_delimiter_inlinespace(stringstream& ss, SrsMp4DumpContext dc)
{
ss << ", ";
}
void srs_delimiter_newline(stringstream& ss, SrsMp4DumpContext dc)
{
ss << endl;
srs_padding(ss, dc);
}
template<typename T>
void srs_pfn_box(T& elem, stringstream& ss, SrsMp4DumpContext dc)
{
elem.dumps(ss, dc);
}
template<typename T>
void srs_pfn_detail(T& elem, stringstream& ss, SrsMp4DumpContext dc)
{
elem.dumps_detail(ss, dc);
}
template<typename T>
void srs_pfn_pbox(T*& elem, stringstream& ss, SrsMp4DumpContext dc)
{
elem->dumps(ss, dc);
}
template<typename T>
void srs_pfn_pdetail(T*& elem, stringstream& ss, SrsMp4DumpContext dc)
{
elem->dumps_detail(ss, dc);
}
template<typename T>
void srs_pfn_types(T& elem, stringstream& ss, SrsMp4DumpContext dc)
{
srs_print_mp4_type(ss, (uint32_t)elem);
}
template<typename T>
void srs_pfn_hex(T& elem, stringstream& ss, SrsMp4DumpContext dc)
{
ss << "0x" << std::setw(2) << std::setfill('0') << std::hex << (uint32_t)(uint8_t)elem << std::dec;
}
template<typename T>
void srs_pfn_elems(T& elem, stringstream& ss, SrsMp4DumpContext dc)
{
ss << elem;
}
stringstream& srs_print_bytes(stringstream& ss, const char* p, int size, SrsMp4DumpContext dc, int line = SrsSummaryCount, int max = -1)
{
if (max == -1) {
max = size;
}
for (int i = 0; i < max; i++) {
ss << "0x" << std::setw(2) << std::setfill('0') << std::hex << (uint32_t)(uint8_t)p[i] << std::dec;
if (i < max -1) {
ss << ", ";
if (((i+1)%line) == 0) {
ss << endl;
srs_padding(ss, dc);
}
}
}
return ss;
}
int srs_mp4_string_length(const string& v)
{
return (int)v.length()+1;
}
void srs_mp4_string_write(SrsBuffer* buf, const string& v)
{
// Nothing for empty string.
if (v.empty()) {
return;
}
buf->write_bytes((char*)v.data(), (int)v.length());
buf->write_1bytes(0x00);
}
int srs_mp4_string_read(SrsBuffer* buf, string& v, int left)
{
int ret = ERROR_SUCCESS;
if (left == 0) {
return ret;
}
char* start = buf->data() + buf->pos();
size_t len = strnlen(start, left);
if ((int)len == left) {
ret = ERROR_MP4_BOX_STRING;
srs_error("MP4 string corrupt, left=%d. ret=%d", left, ret);
return ret;
}
v.append(start, len);
buf->skip((int)len + 1);
return ret;
}
SrsMp4DumpContext SrsMp4DumpContext::indent()
{
SrsMp4DumpContext ctx = *this;
ctx.level++;
return ctx;
}
SrsMp4Box::SrsMp4Box()
{
smallsize = 0;
largesize = 0;
start_pos = 0;
type = SrsMp4BoxTypeForbidden;
}
SrsMp4Box::~SrsMp4Box()
{
vector<SrsMp4Box*>::iterator it;
for (it = boxes.begin(); it != boxes.end(); ++it) {
SrsMp4Box* box = *it;
srs_freep(box);
}
boxes.clear();
}
uint64_t SrsMp4Box::sz()
{
return smallsize == SRS_MP4_USE_LARGE_SIZE? largesize:smallsize;
}
int SrsMp4Box::sz_header()
{
return nb_header();
}
int SrsMp4Box::left_space(SrsBuffer* buf)
{
return (int)sz() - (buf->pos() - start_pos);
}
bool SrsMp4Box::is_ftyp()
{
return type == SrsMp4BoxTypeFTYP;
}
bool SrsMp4Box::is_moov()
{
return type == SrsMp4BoxTypeMOOV;
}
bool SrsMp4Box::is_mdat()
{
return type == SrsMp4BoxTypeMDAT;
}
SrsMp4Box* SrsMp4Box::get(SrsMp4BoxType bt)
{
vector<SrsMp4Box*>::iterator it;
for (it = boxes.begin(); it != boxes.end(); ++it) {
SrsMp4Box* box = *it;
if (box->type == bt) {
return box;
}
}
return NULL;
}
int SrsMp4Box::remove(SrsMp4BoxType bt)
{
int nb_removed = 0;
vector<SrsMp4Box*>::iterator it;
for (it = boxes.begin(); it != boxes.end();) {
SrsMp4Box* box = *it;
if (box->type == bt) {
it = boxes.erase(it);
} else {
++it;
}
}
return nb_removed;
}
stringstream& SrsMp4Box::dumps(stringstream& ss, SrsMp4DumpContext dc)
{
srs_padding(ss, dc);
srs_print_mp4_type(ss, (uint32_t)type);
ss << ", " << sz();
if (smallsize == SRS_MP4_USE_LARGE_SIZE) {
ss << "(large)";
}
ss << "B";
dumps_detail(ss, dc);
if (!boxes.empty()) {
ss << ", " << boxes.size() << " boxes";
}
// If there contained boxes in header,
// which means the last box has already output the endl.
if (!boxes_in_header()) {
ss << endl;
}
vector<SrsMp4Box*>::iterator it;
for (it = boxes.begin(); it != boxes.end(); ++it) {
SrsMp4Box* box = *it;
box->dumps(ss, dc.indent());
}
return ss;
}
int SrsMp4Box::discovery(SrsBuffer* buf, SrsMp4Box** ppbox)
{
*ppbox = NULL;
int ret = ERROR_SUCCESS;
if (!buf->require(8)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 discovery require 8 bytes space. ret=%d", ret);
return ret;
}
// Discovery the size and type.
uint64_t largesize = 0;
uint32_t smallsize = (uint32_t)buf->read_4bytes();
SrsMp4BoxType type = (SrsMp4BoxType)buf->read_4bytes();
if (smallsize == SRS_MP4_USE_LARGE_SIZE) {
if (!buf->require(8)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 discovery require 16 bytes space. ret=%d", ret);
return ret;
}
largesize = (uint64_t)buf->read_8bytes();
buf->skip(-8);
}
buf->skip(-8);
// Only support 31bits size.
if (largesize > 0x7fffffff) {
ret = ERROR_MP4_BOX_OVERFLOW;
srs_error("MP4 discovery overflow 31bits, size=%" PRId64 ". ret=%d", largesize, ret);
return ret;
}
SrsMp4Box* box = NULL;
switch(type) {
case SrsMp4BoxTypeFTYP: box = new SrsMp4FileTypeBox(); break;
case SrsMp4BoxTypeMDAT: box = new SrsMp4MediaDataBox(); break;
case SrsMp4BoxTypeMOOV: box = new SrsMp4MovieBox(); break;
case SrsMp4BoxTypeMVHD: box = new SrsMp4MovieHeaderBox(); break;
case SrsMp4BoxTypeTRAK: box = new SrsMp4TrackBox(); break;
case SrsMp4BoxTypeTKHD: box = new SrsMp4TrackHeaderBox(); break;
case SrsMp4BoxTypeEDTS: box = new SrsMp4EditBox(); break;
case SrsMp4BoxTypeELST: box = new SrsMp4EditListBox(); break;
case SrsMp4BoxTypeMDIA: box = new SrsMp4MediaBox(); break;
case SrsMp4BoxTypeMDHD: box = new SrsMp4MediaHeaderBox(); break;
case SrsMp4BoxTypeHDLR: box = new SrsMp4HandlerReferenceBox(); break;
case SrsMp4BoxTypeMINF: box = new SrsMp4MediaInformationBox(); break;
case SrsMp4BoxTypeVMHD: box = new SrsMp4VideoMeidaHeaderBox(); break;
case SrsMp4BoxTypeSMHD: box = new SrsMp4SoundMeidaHeaderBox(); break;
case SrsMp4BoxTypeDINF: box = new SrsMp4DataInformationBox(); break;
case SrsMp4BoxTypeURL: box = new SrsMp4DataEntryUrlBox(); break;
case SrsMp4BoxTypeURN: box = new SrsMp4DataEntryUrnBox(); break;
case SrsMp4BoxTypeDREF: box = new SrsMp4DataReferenceBox(); break;
case SrsMp4BoxTypeSTBL: box = new SrsMp4SampleTableBox(); break;
case SrsMp4BoxTypeSTSD: box = new SrsMp4SampleDescriptionBox(); break;
case SrsMp4BoxTypeSTTS: box = new SrsMp4DecodingTime2SampleBox(); break;
case SrsMp4BoxTypeCTTS: box = new SrsMp4CompositionTime2SampleBox(); break;
case SrsMp4BoxTypeSTSS: box = new SrsMp4SyncSampleBox(); break;
case SrsMp4BoxTypeSTSC: box = new SrsMp4Sample2ChunkBox(); break;
case SrsMp4BoxTypeSTCO: box = new SrsMp4ChunkOffsetBox(); break;
case SrsMp4BoxTypeCO64: box = new SrsMp4ChunkLargeOffsetBox(); break;
case SrsMp4BoxTypeSTSZ: box = new SrsMp4SampleSizeBox(); break;
case SrsMp4BoxTypeAVC1: box = new SrsMp4VisualSampleEntry(); break;
case SrsMp4BoxTypeAVCC: box = new SrsMp4AvccBox(); break;
case SrsMp4BoxTypeMP4A: box = new SrsMp4AudioSampleEntry(); break;
case SrsMp4BoxTypeESDS: box = new SrsMp4EsdsBox(); break;
case SrsMp4BoxTypeUDTA: box = new SrsMp4UserDataBox(); break;
case SrsMp4BoxTypeMVEX: box = new SrsMp4MovieExtendsBox(); break;
case SrsMp4BoxTypeTREX: box = new SrsMp4TrackExtendsBox(); break;
case SrsMp4BoxTypeSTYP: box = new SrsMp4SegmentTypeBox(); break;
case SrsMp4BoxTypeMOOF: box = new SrsMp4MovieFragmentBox(); break;
case SrsMp4BoxTypeMFHD: box = new SrsMp4MovieFragmentHeaderBox(); break;
case SrsMp4BoxTypeTRAF: box = new SrsMp4TrackFragmentBox(); break;
case SrsMp4BoxTypeTFHD: box = new SrsMp4TrackFragmentHeaderBox(); break;
case SrsMp4BoxTypeTFDT: box = new SrsMp4TrackFragmentDecodeTimeBox(); break;
case SrsMp4BoxTypeTRUN: box = new SrsMp4TrackFragmentRunBox(); break;
// Skip some unknown boxes.
case SrsMp4BoxTypeFREE: case SrsMp4BoxTypeSKIP: case SrsMp4BoxTypePASP:
box = new SrsMp4FreeSpaceBox(type); break;
default:
ret = ERROR_MP4_BOX_ILLEGAL_TYPE;
srs_error("MP4 illegal box type=%d. ret=%d", type, ret);
break;
}
if (box) {
box->smallsize = smallsize;
box->largesize = largesize;
box->type = type;
*ppbox = box;
}
return ret;
}
int SrsMp4Box::nb_bytes()
{
int sz = nb_header();
vector<SrsMp4Box*>::iterator it;
for (it = boxes.begin(); it != boxes.end(); ++it) {
SrsMp4Box* box = *it;
sz += box->nb_bytes();
}
return sz;
}
int SrsMp4Box::encode(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
uint64_t size = nb_bytes();
if (size > 0xffffffff) {
largesize = size;
} else {
smallsize = (uint32_t)size;
}
start_pos = buf->pos();
if ((ret = encode_header(buf)) != ERROR_SUCCESS) {
srs_error("MP4 encode box header failed. ret=%d", ret);
return ret;
}
if ((ret = encode_boxes(buf)) != ERROR_SUCCESS) {
srs_error("MP4 encode contained boxes failed. ret=%d", ret);
return ret;
}
return ret;
}
int SrsMp4Box::decode(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
start_pos = buf->pos();
if ((ret = decode_header(buf)) != ERROR_SUCCESS) {
srs_error("MP4 decode box header failed. ret=%d", ret);
return ret;
}
if ((ret = decode_boxes(buf)) != ERROR_SUCCESS) {
srs_error("MP4 decode contained boxes failed. ret=%d", ret);
return ret;
}
return ret;
}
int SrsMp4Box::encode_boxes(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
vector<SrsMp4Box*>::iterator it;
for (it = boxes.begin(); it != boxes.end(); ++it) {
SrsMp4Box* box = *it;
if ((ret = box->encode(buf)) != ERROR_SUCCESS) {
srs_error("MP4 encode contained box failed. ret=%d", ret);
return ret;
}
}
return ret;
}
int SrsMp4Box::decode_boxes(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
int left = left_space(buf);
while (left > 0) {
SrsMp4Box* box = NULL;
if ((ret = discovery(buf, &box)) != ERROR_SUCCESS) {
srs_error("MP4 discovery contained box failed. ret=%d", ret);
return ret;
}
srs_assert(box);
if ((ret = box->decode(buf)) != ERROR_SUCCESS) {
srs_freep(box);
srs_error("MP4 decode contained box failed. ret=%d", ret);
return ret;
}
boxes.push_back(box);
left -= box->sz();
}
return ret;
}
int SrsMp4Box::nb_header()
{
int size = 8;
if (smallsize == SRS_MP4_USE_LARGE_SIZE) {
size += 8;
}
if (type == SrsMp4BoxTypeUUID) {
size += 16;
}
return size;
}
int SrsMp4Box::encode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
// Only support 31bits size.
if (sz() > 0x7fffffff) {
ret = ERROR_MP4_BOX_OVERFLOW;
srs_error("MP4 box size overflow 31bits, size=%" PRId64 ". ret=%d", sz(), ret);
return ret;
}
int size = SrsMp4Box::nb_header();
if (!buf->require(size)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 box require %d bytes space. ret=%d", size, ret);
return ret;
}
buf->write_4bytes(smallsize);
if (smallsize == SRS_MP4_USE_LARGE_SIZE) {
buf->write_8bytes(largesize);
}
buf->write_4bytes(type);
if (type == SrsMp4BoxTypeUUID) {
buf->write_bytes(&usertype[0], 16);
}
int lrsz = nb_header() - SrsMp4Box::nb_header();
if (!buf->require(lrsz)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 box require %d bytes space. ret=%d", lrsz, ret);
return ret;
}
return ret;
}
int SrsMp4Box::decode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if (!buf->require(8)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 box require 8 bytes space. ret=%d", ret);
return ret;
}
smallsize = (uint32_t)buf->read_4bytes();
type = (SrsMp4BoxType)buf->read_4bytes();
if (smallsize == SRS_MP4_EOF_SIZE) {
srs_trace("MP4 box EOF.");
return ret;
}
if (smallsize == SRS_MP4_USE_LARGE_SIZE) {
if (!buf->require(8)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 box require 8 bytes space. ret=%d", ret);
return ret;
}
largesize = (uint64_t)buf->read_8bytes();
}
// Only support 31bits size.
if (sz() > 0x7fffffff) {
ret = ERROR_MP4_BOX_OVERFLOW;
srs_error("MP4 box size overflow 31bits, size=%" PRId64 ". ret=%d", sz(), ret);
return ret;
}
if (type == SrsMp4BoxTypeUUID) {
if (!buf->require(16)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 box requires 16 bytes space. ret=%d", ret);
return ret;
}
usertype.resize(16);
buf->read_bytes(&usertype[0], 16);
}
// The left required size, determined by the default version(0).
int lrsz = nb_header() - SrsMp4Box::nb_header();
if (!buf->require(lrsz)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 box requires %d bytes space. ret=%d", lrsz, ret);
return ret;
}
return ret;
}
bool SrsMp4Box::boxes_in_header()
{
return false;
}
stringstream& SrsMp4Box::dumps_detail(stringstream& ss, SrsMp4DumpContext dc)
{
return ss;
}
SrsMp4FullBox::SrsMp4FullBox()
{
version = 0;
flags = 0;
}
SrsMp4FullBox::~SrsMp4FullBox()
{
}
int SrsMp4FullBox::nb_header()
{
return SrsMp4Box::nb_header() + 1 + 3;
}
int SrsMp4FullBox::encode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if ((ret = SrsMp4Box::encode_header(buf)) != ERROR_SUCCESS) {
return ret;
}
if (!buf->require(4)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 full box requires 4 bytes space. ret=%d", ret);
return ret;
}
buf->write_1bytes(version);
buf->write_3bytes(flags);
return ret;
}
int SrsMp4FullBox::decode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if ((ret = SrsMp4Box::decode_header(buf)) != ERROR_SUCCESS) {
return ret;
}
if (!buf->require(4)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 full box requires 4 bytes space. ret=%d", ret);
return ret;
}
flags = (uint32_t)buf->read_4bytes();
version = (uint8_t)((flags >> 24) & 0xff);
flags &= 0x00ffffff;
// The left required size, determined by the version.
int lrsz = nb_header() - SrsMp4FullBox::nb_header();
if (!buf->require(lrsz)) {
ret = ERROR_MP4_BOX_REQUIRE_SPACE;
srs_error("MP4 full box requires %d bytes space. ret=%d", lrsz, ret);
return ret;
}
return ret;
}
stringstream& SrsMp4FullBox::dumps_detail(stringstream& ss, SrsMp4DumpContext dc)
{
SrsMp4Box::dumps_detail(ss, dc);
ss << ", FB(4B";
if (version != 0 || flags != 0) {
ss << ",V" << uint32_t(version)
<< ",0x" << std::setw(2) << std::setfill('0') << std::hex << flags << std::dec;
}
ss << ")";
return ss;
}
SrsMp4FileTypeBox::SrsMp4FileTypeBox()
{
type = SrsMp4BoxTypeFTYP;
major_brand = SrsMp4BoxBrandForbidden;
minor_version = 0;
}
SrsMp4FileTypeBox::~SrsMp4FileTypeBox()
{
}
void SrsMp4FileTypeBox::set_compatible_brands(SrsMp4BoxBrand b0, SrsMp4BoxBrand b1)
{
compatible_brands.resize(2);
compatible_brands[0] = b0;
compatible_brands[1] = b1;
}
void SrsMp4FileTypeBox::set_compatible_brands(SrsMp4BoxBrand b0, SrsMp4BoxBrand b1, SrsMp4BoxBrand b2, SrsMp4BoxBrand b3)
{
compatible_brands.resize(4);
compatible_brands[0] = b0;
compatible_brands[1] = b1;
compatible_brands[2] = b2;
compatible_brands[3] = b3;
}
int SrsMp4FileTypeBox::nb_header()
{
return (int)(SrsMp4Box::nb_header() + 8 + compatible_brands.size() * 4);
}
int SrsMp4FileTypeBox::encode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if ((ret = SrsMp4Box::encode_header(buf)) != ERROR_SUCCESS) {
return ret;
}
buf->write_4bytes(major_brand);
buf->write_4bytes(minor_version);
for (size_t i = 0; i < compatible_brands.size(); i++) {
buf->write_4bytes(compatible_brands[i]);
}
return ret;
}
int SrsMp4FileTypeBox::decode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if ((ret = SrsMp4Box::decode_header(buf)) != ERROR_SUCCESS) {
return ret;
}
major_brand = (SrsMp4BoxBrand)buf->read_4bytes();
minor_version = buf->read_4bytes();
// Compatible brands to the end of the box.
int left = left_space(buf);
if (left > 0) {
compatible_brands.resize(left / 4);
}
for (int i = 0; left > 0; i++, left -= 4){
compatible_brands[i] = (SrsMp4BoxBrand)buf->read_4bytes();
}
return ret;
}
stringstream& SrsMp4FileTypeBox::dumps_detail(stringstream& ss, SrsMp4DumpContext dc)
{
SrsMp4Box::dumps_detail(ss, dc);
ss << ", brands:";
srs_print_mp4_type(ss, (uint32_t)major_brand);
ss << "," << minor_version;
if (!compatible_brands.empty()) {
ss << "(";
srs_dumps_array(compatible_brands, ss, dc, srs_pfn_types, srs_delimiter_inline);
ss << ")";
}
return ss;
}
SrsMp4SegmentTypeBox::SrsMp4SegmentTypeBox()
{
type = SrsMp4BoxTypeSTYP;
}
SrsMp4SegmentTypeBox::~SrsMp4SegmentTypeBox()
{
}
SrsMp4MovieFragmentBox::SrsMp4MovieFragmentBox()
{
type = SrsMp4BoxTypeMOOF;
}
SrsMp4MovieFragmentBox::~SrsMp4MovieFragmentBox()
{
}
SrsMp4MovieFragmentHeaderBox* SrsMp4MovieFragmentBox::mfhd()
{
SrsMp4Box* box = get(SrsMp4BoxTypeMFHD);
return dynamic_cast<SrsMp4MovieFragmentHeaderBox*>(box);
}
void SrsMp4MovieFragmentBox::set_mfhd(SrsMp4MovieFragmentHeaderBox* v)
{
remove(SrsMp4BoxTypeMFHD);
boxes.push_back(v);
}
SrsMp4TrackFragmentBox* SrsMp4MovieFragmentBox::traf()
{
SrsMp4Box* box = get(SrsMp4BoxTypeTRAF);
return dynamic_cast<SrsMp4TrackFragmentBox*>(box);
}
void SrsMp4MovieFragmentBox::set_traf(SrsMp4TrackFragmentBox* v)
{
remove(SrsMp4BoxTypeTRAF);
boxes.push_back(v);
}
SrsMp4MovieFragmentHeaderBox::SrsMp4MovieFragmentHeaderBox()
{
type = SrsMp4BoxTypeMFHD;
sequence_number = 0;
}
SrsMp4MovieFragmentHeaderBox::~SrsMp4MovieFragmentHeaderBox()
{
}
int SrsMp4MovieFragmentHeaderBox::nb_header()
{
return SrsMp4FullBox::nb_header() + 4;
}
int SrsMp4MovieFragmentHeaderBox::encode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if ((ret = SrsMp4FullBox::encode_header(buf)) != ERROR_SUCCESS) {
return ret;
}
buf->write_4bytes(sequence_number);
return ret;
}
int SrsMp4MovieFragmentHeaderBox::decode_header(SrsBuffer* buf)
{
int ret = ERROR_SUCCESS;
if ((ret = SrsMp4FullBox::decode_header(buf)) != ERROR_SUCCESS) {
return ret;
}
sequence_number = buf->read_4bytes();
return ret;
}
stringstream& SrsMp4MovieFragmentHeaderBox::dumps_detail(stringstream& ss, SrsMp4DumpContext dc)
{
SrsMp4FullBox::dumps_detail(ss, dc);
ss << ", sequence=" << sequence_number;
return ss;
}
SrsMp4TrackFragmentBox::SrsMp4TrackFragmentBox()
{
type = SrsMp4BoxTypeTRAF;
}
SrsMp4TrackFragmentBox::~SrsMp4TrackFragmentBox()
{
}
SrsMp4TrackFragmentHeaderBox* SrsMp4TrackFragmentBox::tfhd()
{
SrsMp4Box* box = get(SrsMp4BoxTypeTFHD);
return dynamic_cast<SrsMp4TrackFragmentHeaderBox*>(box);
}
void SrsMp4TrackFragmentBox::set_tfhd(SrsMp4TrackFragmentHeaderBox* v)
{
remove(SrsMp4BoxTypeTFHD);
boxes.push_back(v);
}
SrsMp4TrackFragmentDecodeTimeBox* SrsMp4TrackFragmentBox::tfdt()
{
SrsMp4Box* box = get(SrsMp4BoxTypeTFDT);
return dynamic_cast<SrsMp4TrackFragmentDecodeTimeBox*>(box);
}
void SrsMp4TrackFragmentBox::set_tfdt(SrsMp4TrackFragmentDecodeTimeBox* v)
{
remove(SrsMp4BoxTypeTFDT);
boxes.push_back(v);
}
SrsMp4TrackFragmentRunBox* SrsMp4TrackFragmentBox::trun()
{
SrsMp4Box* box = get(SrsMp4BoxTypeTRUN);
return dynamic_cast<SrsMp4TrackFragmentRunBox*>(box);
}
void SrsMp4TrackFragmentBox::set_trun(SrsMp4TrackFragmentRunBox* v)
{
remove(SrsMp4BoxTypeTRUN);
boxes.push_back(v);
}
SrsMp4TrackFragmentHeaderBox::SrsMp4TrackFragmentHeaderBox()
{
type = SrsMp4BoxTypeTFHD;
flags = 0;
base_data_offset = 0;
track_id = sample_description_index = 0;
default_sample_duration = default_sample_size = 0;
default_sample_flags = 0;
}
SrsMp4TrackFragmentHeaderBox::~SrsMp4TrackFragmentHeaderBox()
{
}
int SrsMp4TrackFragmentHeaderBox::nb_header()
{
int size = SrsMp4FullBox::nb_header() + 4;
if ((flags&SrsMp4TfhdFlagsBaseDataOffset) == SrsMp4TfhdFlagsBaseDataOffset) {
size += 8;
}
if ((flags&SrsMp4TfhdFlagsSampleDescriptionIndex) == SrsMp4TfhdFlagsSampleDescriptionIndex) {
size += 4;
}
if ((flags&SrsMp4TfhdFlagsDefaultSampleDuration) == SrsMp4TfhdFlagsDefaultSampleDuration) {
size += 4;
}
if ((flags&SrsMp4TfhdFlagsDefautlSampleSize) == SrsMp4TfhdFlagsDefautlSampleSize) {
size += 4;
}
if ((flags&SrsMp4TfhdFlagsDefaultSampleFlags) == SrsMp4TfhdFlagsDefaultSampleFlags) {
size += 4;
}
return size;
}