mp4.h

AAC编解码源码

bool MP4SetHintTrackSdp(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    const char* sdpString);

bool MP4AppendHintTrackSdp(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    const char* sdpString);

MP4TrackId MP4GetHintTrackReferenceTrackId(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId);

bool MP4ReadRtpHint(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    MP4SampleId hintSampleId,
    u_int16_t* pNumPackets DEFAULT(NULL));

u_int16_t MP4GetRtpHintNumberOfPackets(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId);

int8_t MP4GetRtpPacketBFrame(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    u_int16_t packetIndex);

int32_t MP4GetRtpPacketTransmitOffset(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    u_int16_t packetIndex);

bool MP4ReadRtpPacket(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    u_int16_t packetIndex,
    u_int8_t** ppBytes,
    u_int32_t* pNumBytes,
    u_int32_t ssrc DEFAULT(0),
    bool includeHeader DEFAULT(true),
    bool includePayload DEFAULT(true));

MP4Timestamp MP4GetRtpTimestampStart(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId);

bool MP4SetRtpTimestampStart(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    MP4Timestamp rtpStart);

bool MP4AddRtpHint(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId);

bool MP4AddRtpVideoHint(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    bool isBframe DEFAULT(false),
    u_int32_t timestampOffset DEFAULT(0));

bool MP4AddRtpPacket(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    bool setMbit DEFAULT(false),
    int32_t transmitOffset DEFAULT(0));

bool MP4AddRtpImmediateData(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    const u_int8_t* pBytes,
    u_int32_t numBytes);

bool MP4AddRtpSampleData(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    MP4SampleId sampleId,
    u_int32_t dataOffset,
    u_int32_t dataLength);

bool MP4AddRtpESConfigurationPacket(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId);

bool MP4WriteRtpHint(
    MP4FileHandle hFile,
    MP4TrackId hintTrackId,
    MP4Duration duration,
    bool isSyncSample DEFAULT(true));

/* ISMA specific utilities */

bool MP4MakeIsmaCompliant(const char* fileName,
    u_int32_t verbosity DEFAULT(0),
    bool addIsmaComplianceSdp DEFAULT(true));

char* MP4MakeIsmaSdpIod(
    u_int8_t videoProfile,
    u_int32_t videoBitrate,
    u_int8_t* videoConfig,
    u_int32_t videoConfigLength,
    u_int8_t audioProfile,
    u_int32_t audioBitrate,
    u_int8_t* audioConfig,
    u_int32_t audioConfigLength,
    u_int32_t verbosity DEFAULT(0));

/* edit list */

/* NOTE this section of functionality
 * has not yet been fully tested
 */

MP4EditId MP4AddTrackEdit(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId DEFAULT(MP4_INVALID_EDIT_ID),
    MP4Timestamp startTime DEFAULT(0),
    MP4Duration duration DEFAULT(0),
    bool dwell DEFAULT(false));

bool MP4DeleteTrackEdit(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId);

u_int32_t MP4GetTrackNumberOfEdits(
    MP4FileHandle hFile,
    MP4TrackId trackId);

MP4Timestamp MP4GetTrackEditStart(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId);

MP4Duration MP4GetTrackEditTotalDuration(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId DEFAULT(MP4_INVALID_EDIT_ID));

MP4Timestamp MP4GetTrackEditMediaStart(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId);

bool MP4SetTrackEditMediaStart(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId,
    MP4Timestamp startTime);

MP4Duration MP4GetTrackEditDuration(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId);

bool MP4SetTrackEditDuration(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId,
    MP4Duration duration);

int8_t MP4GetTrackEditDwell(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId);

bool MP4SetTrackEditDwell(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4EditId editId,
    bool dwell);

bool MP4ReadSampleFromEditTime(
    /* input parameters */
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4Timestamp when,
    /* input/output parameters */
    u_int8_t** ppBytes,
    u_int32_t* pNumBytes,
    /* output parameters */
    MP4Timestamp* pStartTime DEFAULT(NULL),
    MP4Duration* pDuration DEFAULT(NULL),
    MP4Duration* pRenderingOffset DEFAULT(NULL),
    bool* pIsSyncSample DEFAULT(NULL));

MP4SampleId MP4GetSampleIdFromEditTime(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4Timestamp when,
    MP4Timestamp* pStartTime DEFAULT(NULL),
    MP4Duration* pDuration DEFAULT(NULL));

/* time conversion utilties */

/* predefined values for timeScale parameter below */
#define MP4_SECONDS_TIME_SCALE      1
#define MP4_MILLISECONDS_TIME_SCALE 1000
#define MP4_MICROSECONDS_TIME_SCALE 1000000
#define MP4_NANOSECONDS_TIME_SCALE  1000000000

#define MP4_SECS_TIME_SCALE     MP4_SECONDS_TIME_SCALE
#define MP4_MSECS_TIME_SCALE    MP4_MILLISECONDS_TIME_SCALE
#define MP4_USECS_TIME_SCALE    MP4_MICROSECONDS_TIME_SCALE
#define MP4_NSECS_TIME_SCALE    MP4_NANOSECONDS_TIME_SCALE

u_int64_t MP4ConvertFromMovieDuration(
    MP4FileHandle hFile,
    MP4Duration duration,
    u_int32_t timeScale);

u_int64_t MP4ConvertFromTrackTimestamp(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4Timestamp timeStamp,
    u_int32_t timeScale);

MP4Timestamp MP4ConvertToTrackTimestamp(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    u_int64_t timeStamp,
    u_int32_t timeScale);

u_int64_t MP4ConvertFromTrackDuration(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    MP4Duration duration,
    u_int32_t timeScale);

MP4Duration MP4ConvertToTrackDuration(
    MP4FileHandle hFile,
    MP4TrackId trackId,
    u_int64_t duration,
    u_int32_t timeScale);

char* MP4BinaryToBase16(
    const u_int8_t* pData,
    u_int32_t dataSize);

char* MP4BinaryToBase64(
    const u_int8_t* pData,
    u_int32_t dataSize);

/* iTunes metadata handling */
bool MP4MetadataDelete(MP4FileHandle hFile);
bool MP4GetMetadataByIndex(MP4FileHandle hFile, u_int32_t index,
                           const char** ppName,
                           u_int8_t** ppValue, u_int32_t* pValueSize);
bool MP4SetMetadataName(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataName(MP4FileHandle hFile, char** value);
bool MP4SetMetadataArtist(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataArtist(MP4FileHandle hFile, char** value);
bool MP4SetMetadataWriter(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataWriter(MP4FileHandle hFile, char** value);
bool MP4SetMetadataComment(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataComment(MP4FileHandle hFile, char** value);
bool MP4SetMetadataTool(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataTool(MP4FileHandle hFile, char** value);
bool MP4SetMetadataYear(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataYear(MP4FileHandle hFile, char** value);
bool MP4SetMetadataAlbum(MP4FileHandle hFile, const char* value);
bool MP4GetMetadataAlbum(MP4FileHandle hFile, char** value);
bool MP4SetMetadataTrack(MP4FileHandle hFile,
                         u_int16_t track, u_int16_t totalTracks);
bool MP4GetMetadataTrack(MP4FileHandle hFile,
                         u_int16_t* track, u_int16_t* totalTracks);
bool MP4SetMetadataDisk(MP4FileHandle hFile,
                        u_int16_t disk, u_int16_t totalDisks);
bool MP4GetMetadataDisk(MP4FileHandle hFile,
                        u_int16_t* disk, u_int16_t* totalDisks);
bool MP4SetMetadataGenre(MP4FileHandle hFile, const char* genre);
bool MP4GetMetadataGenre(MP4FileHandle hFile, char** genre);
bool MP4SetMetadataTempo(MP4FileHandle hFile, u_int16_t tempo);
bool MP4GetMetadataTempo(MP4FileHandle hFile, u_int16_t* tempo);
bool MP4SetMetadataCompilation(MP4FileHandle hFile, u_int8_t cpl);
bool MP4GetMetadataCompilation(MP4FileHandle hFile, u_int8_t* cpl);
bool MP4SetMetadataCoverArt(MP4FileHandle hFile,
                            u_int8_t *coverArt, u_int32_t size);
bool MP4GetMetadataCoverArt(MP4FileHandle hFile,
                            u_int8_t **coverArt, u_int32_t* size);
bool MP4SetMetadataFreeForm(MP4FileHandle hFile, char *name,
                            u_int8_t* pValue, u_int32_t valueSize);
bool MP4GetMetadataFreeForm(MP4FileHandle hFile, char *name,
                            u_int8_t** pValue, u_int32_t* valueSize);

//#ifdef USE_FILE_CALLBACKS
typedef u_int32_t (*MP4OpenCallback)(const char *pName, const char *mode, void *userData);
typedef void (*MP4CloseCallback)(void *userData);
typedef u_int32_t (*MP4ReadCallback)(void *pBuffer, unsigned int nBytesToRead, void *userData);
typedef u_int32_t (*MP4WriteCallback)(void *pBuffer, unsigned int nBytesToWrite, void *userData);
typedef int32_t (*MP4SetposCallback)(u_int32_t pos, void *userData);
typedef int64_t (*MP4GetposCallback)(void *userData);
typedef int64_t (*MP4FilesizeCallback)(void *userData);

MP4FileHandle MP4CreateCb(u_int32_t verbosity,
                          bool use64bits,
                          bool useExtensibleFormat,
                          MP4OpenCallback MP4fopen,
                          MP4CloseCallback MP4fclose,
                          MP4ReadCallback MP4fread,
                          MP4WriteCallback MP4fwrite,
                          MP4SetposCallback MP4fsetpos,
                          MP4GetposCallback MP4fgetpos,
                          MP4FilesizeCallback MP4filesize,
                          void *userData);

MP4FileHandle MP4ReadCb(u_int32_t verbosity,
                        MP4OpenCallback MP4fopen,
                        MP4CloseCallback MP4fclose,
                        MP4ReadCallback MP4fread,
                        MP4WriteCallback MP4fwrite,
                        MP4SetposCallback MP4fsetpos,
                        MP4GetposCallback MP4fgetpos,
                        MP4FilesizeCallback MP4filesize,
                        void *userData);
MP4FileHandle MP4ModifyCb(int32_t verbosity,
                          bool useExtensibleFormat,
                          MP4OpenCallback MP4fopen, MP4CloseCallback MP4fclose,
                          MP4ReadCallback MP4fread, MP4WriteCallback MP4fwrite,
                          MP4SetposCallback MP4fsetpos, MP4GetposCallback MP4fgetpos,
                          MP4FilesizeCallback MP4filesize, void *userData);
//#endif

#ifdef __cplusplus
}
#endif

/* undefined our utlity macro to avoid conflicts */
#undef DEFAULT

#endif /* __MP4_INCLUDED__ */