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提炼MP4相关接口和代码

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This commit is contained in:
xiongziliang
2020-09-20 19:45:04 +08:00
parent 2dd1046131
commit 071d0a9fd1
9 changed files with 179 additions and 61 deletions
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44
src/Record/MP4.cpp
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@@ -18,6 +18,8 @@
using namespace toolkit;
namespace mediakit {
/////////////////////////////////////////////////mp4_writer_t/////////////////////////////////////////////////
struct mp4_writer_t {
int is_fmp4;
union {
@@ -102,28 +104,32 @@ int mp4_writer_init_segment(mp4_writer_t* mp4){
}
}
/////////////////////////////////////////////////MP4FileIO/////////////////////////////////////////////////
static struct mov_buffer_t s_io = {
[](void *ctx, void *data, uint64_t bytes) {
MP4File *thiz = (MP4File *) ctx;
MP4FileIO *thiz = (MP4FileIO *) ctx;
return thiz->onRead(data, bytes);
},
[](void *ctx, const void *data, uint64_t bytes) {
MP4File *thiz = (MP4File *) ctx;
MP4FileIO *thiz = (MP4FileIO *) ctx;
return thiz->onWrite(data, bytes);
},
[](void *ctx, uint64_t offset) {
MP4File *thiz = (MP4File *) ctx;
MP4FileIO *thiz = (MP4FileIO *) ctx;
return thiz->onSeek(offset);
},
[](void *ctx) {
MP4File *thiz = (MP4File *) ctx;
MP4FileIO *thiz = (MP4FileIO *) ctx;
return thiz->onTell();
}
};
MP4File::Writer MP4File::createWriter(int flags, bool is_fmp4){
MP4FileIO::Writer MP4FileIO::createWriter(int flags, bool is_fmp4){
Writer writer;
writer.reset(mp4_writer_create(is_fmp4, &s_io,this, flags),[](mp4_writer_t *ptr){
Ptr self = shared_from_this();
//保存自己的强引用，防止提前释放
writer.reset(mp4_writer_create(is_fmp4, &s_io,this, flags),[self](mp4_writer_t *ptr){
if(ptr){
mp4_writer_destroy(ptr);
}
@@ -134,9 +140,11 @@ MP4File::Writer MP4File::createWriter(int flags, bool is_fmp4){
return writer;
}
MP4File::Reader MP4File::createReader(){
MP4FileIO::Reader MP4FileIO::createReader(){
Reader reader;
reader.reset(mov_reader_create(&s_io,this),[](mov_reader_t *ptr){
Ptr self = shared_from_this();
//保存自己的强引用，防止提前释放
reader.reset(mov_reader_create(&s_io,this),[self](mov_reader_t *ptr){
if(ptr){
mov_reader_destroy(ptr);
}
@@ -147,15 +155,17 @@ MP4File::Reader MP4File::createReader(){
return reader;
}
/////////////////////////////////////////////////////MP4FileDisk/////////////////////////////////////////////////////////
#if defined(_WIN32) || defined(_WIN64)
#define fseek64 _fseeki64
#define ftell64 _ftelli64
#define ftell64 _ftelli64
#else
#define fseek64 fseek
#define ftell64 ftell
#define fseek64 fseek
#define ftell64 ftell
#endif
void MP4File::openFile(const char *file,const char *mode) {
void MP4FileDisk::openFile(const char *file, const char *mode) {
//创建文件
auto fp = File::create_file(file, mode);
if(!fp){
@@ -183,26 +193,26 @@ void MP4File::openFile(const char *file,const char *mode) {
});
}
void MP4File::closeFile() {
void MP4FileDisk::closeFile() {
_file = nullptr;
}
int MP4File::onRead(void *data, uint64_t bytes) {
int MP4FileDisk::onRead(void *data, uint64_t bytes) {
if (bytes == fread(data, 1, bytes, _file.get())){
return 0;
}
return 0 != ferror(_file.get()) ? ferror(_file.get()) : -1 /*EOF*/;
}
int MP4File::onWrite(const void *data, uint64_t bytes) {
int MP4FileDisk::onWrite(const void *data, uint64_t bytes) {
return bytes == fwrite(data, 1, bytes, _file.get()) ? 0 : ferror(_file.get());
}
int MP4File::onSeek(uint64_t offset) {
int MP4FileDisk::onSeek(uint64_t offset) {
return fseek64(_file.get(), offset, SEEK_SET);
}
uint64_t MP4File::onTell() {
uint64_t MP4FileDisk::onTell() {
return ftell64(_file.get());
}