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Commit 3beba388 authored by Rahul's avatar Rahul Committed by Dorin Drimus
Browse files

MPEG2-TS: Add DTS, DTS-LBR, and DTS:X Profile2 support 

* Add support for extracting DTS, DTS-HD and DTS-UHD descriptor ID
  from PSI PMT
* Dequeue and parse DTS(Digital Surround), DTS-LBR(DTS Express),
  and DTS:X Profile-2(UHD Profile 2) frame.

Bug: 260223911
Test: atest CtsMediaExtractorTestCases
Change-Id: I4496d800b7a4973c64bc3bb6540ed3484304ce2e
parent 9a4e2bf6

media/module/mpeg2ts/ATSParser.cpp

+31 −2
Original line number Diff line number Diff line
@@ -556,7 +556,15 @@ status_t ATSParser::Program::parseProgramMap(ABitReader *br) { 
            if (descriptor_length > ES_info_length) {

                return ERROR_MALFORMED;

            }

            if (descriptor_tag == DESCRIPTOR_CA && descriptor_length >= 4) {



            // The DTS descriptor is used in the PSI PMT to identify streams which carry

            // DTS audio(core only). If a DTS descriptor is present, a DTS-HD or DTS-UHD

            // descriptors shall not be present in the same ES_info descriptor loop.

            if (descriptor_tag == DESCRIPTOR_DTS) {

                info.mType = STREAMTYPE_DTS;

                ES_info_length -= descriptor_length;

                br->skipBits(descriptor_length * 8);

            } else if (descriptor_tag == DESCRIPTOR_CA && descriptor_length >= 4) {

                hasStreamCA = true;

                streamCA.mSystemID = br->getBits(16);

                streamCA.mPID = br->getBits(16) & 0x1fff;
@@ -575,6 +583,16 @@ status_t ATSParser::Program::parseProgramMap(ABitReader *br) { 
                if (descTagExt == EXT_DESCRIPTOR_DVB_AC4) {

                    info.mTypeExt = EXT_DESCRIPTOR_DVB_AC4;

                    br->skipBits(descriptor_length * 8);

                } else if (descTagExt == EXT_DESCRIPTOR_DVB_DTS_HD) {

                    // DTS HD extended descriptor which can accommodate core only formats

                    // as well as extension only and core + extension combinations.

                    info.mTypeExt = EXT_DESCRIPTOR_DVB_DTS_HD;

                    br->skipBits(descriptor_length * 8);

                } else if (descTagExt == EXT_DESCRIPTOR_DVB_DTS_UHD) {

                    // The DTS-UHD descriptor is used in the PSI PMT to identify streams

                    // which carry DTS-UHD audio

                    info.mTypeExt = EXT_DESCRIPTOR_DVB_DTS_UHD;

                    br->skipBits(descriptor_length * 8);

                } else if (descTagExt == EXT_DESCRIPTOR_DVB_AUDIO_PRESELECTION &&

                           descriptor_length >= 1) {

                    // DVB BlueBook A038 Table 110
@@ -920,9 +938,17 @@ ATSParser::Stream::Stream( 
            mode = ElementaryStreamQueue::EAC3;

            break;



        case STREAMTYPE_DTS:

            mode = ElementaryStreamQueue::DTS;

            break;



        case STREAMTYPE_PES_PRIVATE_DATA:

            if (mStreamTypeExt == EXT_DESCRIPTOR_DVB_AC4) {

                mode = ElementaryStreamQueue::AC4;

            } else if (mStreamTypeExt == EXT_DESCRIPTOR_DVB_DTS_HD) {

                mode = ElementaryStreamQueue::DTS_HD;

            } else if (mStreamTypeExt == EXT_DESCRIPTOR_DVB_DTS_UHD) {

                mode = ElementaryStreamQueue::DTS_UHD;

            }

            break;
@@ -1158,9 +1184,12 @@ bool ATSParser::Stream::isAudio() const { 
        case STREAMTYPE_EAC3:

        case STREAMTYPE_AAC_ENCRYPTED:

        case STREAMTYPE_AC3_ENCRYPTED:

        case STREAMTYPE_DTS:

            return true;

        case STREAMTYPE_PES_PRIVATE_DATA:

            return mStreamTypeExt == EXT_DESCRIPTOR_DVB_AC4;

            return (mStreamTypeExt == EXT_DESCRIPTOR_DVB_AC4

                    || mStreamTypeExt == EXT_DESCRIPTOR_DVB_DTS_HD

                    || mStreamTypeExt == EXT_DESCRIPTOR_DVB_DTS_UHD);



        default:

            return false;

media/module/mpeg2ts/ESQueue.cpp

+606 −0

File changed.

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media/module/mpeg2ts/include/mpeg2ts/ATSParser.h

+6 −0
Original line number Diff line number Diff line
@@ -157,6 +157,9 @@ struct ATSParser : public RefBase { 
        STREAMTYPE_LPCM_AC3             = 0x83,

        STREAMTYPE_EAC3                 = 0x87,



        // DTS audio stream type which contains only Core substream

        STREAMTYPE_DTS                  = 0x8A,



        //Sample Encrypted types

        STREAMTYPE_H264_ENCRYPTED       = 0xDB,

        STREAMTYPE_AAC_ENCRYPTED        = 0xCF,
@@ -168,6 +171,7 @@ struct ATSParser : public RefBase { 
        DESCRIPTOR_CA                   = 0x09,



        // DVB BlueBook A038 Table 12

        DESCRIPTOR_DTS                  = 0x7B,

        DESCRIPTOR_DVB_EXTENSION        = 0x7F,

    };
@@ -175,6 +179,8 @@ struct ATSParser : public RefBase { 
    enum {

        EXT_DESCRIPTOR_DVB_AC4                  = 0x15,

        EXT_DESCRIPTOR_DVB_AUDIO_PRESELECTION   = 0x19,

        EXT_DESCRIPTOR_DVB_DTS_HD               = 0x0E,

        EXT_DESCRIPTOR_DVB_DTS_UHD              = 0x21,

        EXT_DESCRIPTOR_DVB_RESERVED_MAX         = 0x7F,

    };

media/module/mpeg2ts/include/mpeg2ts/ESQueue.h

+5 −0

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