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| author | David Yeh <david.yeh@mediatek.com> | 2014-09-03 11:14:48 +0800 |
|---|---|---|
| committer | Chong Zhang <chz@google.com> | 2014-10-21 18:17:53 -0700 |
| commit | 6456ae745e919085c5024f784aaa2703f9695f98 (patch) | |
| tree | f997a24e830da8dea78c5acaecf706fde4b78006 /media/libstagefright/mpeg2ts/ATSParser.cpp | |
| parent | 121969b7e0d958092fae76226dc55fe8547a1da6 (diff) | |
| download | frameworks_av-6456ae745e919085c5024f784aaa2703f9695f98.zip frameworks_av-6456ae745e919085c5024f784aaa2703f9695f98.tar.gz frameworks_av-6456ae745e919085c5024f784aaa2703f9695f98.tar.bz2 | |
stagefright: return failure on malformed TS streams
Bug: 18075193
Change-Id: I7bd97dea263e972a8de3429ed000cbd4913164bf
Diffstat (limited to 'media/libstagefright/mpeg2ts/ATSParser.cpp')
| -rw-r--r-- | media/libstagefright/mpeg2ts/ATSParser.cpp | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/media/libstagefright/mpeg2ts/ATSParser.cpp b/media/libstagefright/mpeg2ts/ATSParser.cpp index 6d8866a..eab7616 100644 --- a/media/libstagefright/mpeg2ts/ATSParser.cpp +++ b/media/libstagefright/mpeg2ts/ATSParser.cpp @@ -244,11 +244,16 @@ struct StreamInfo { status_t ATSParser::Program::parseProgramMap(ABitReader *br) { unsigned table_id = br->getBits(8); ALOGV(" table_id = %u", table_id); - CHECK_EQ(table_id, 0x02u); - + if (table_id != 0x02u) { + ALOGE("PMT data error!"); + return ERROR_MALFORMED; + } unsigned section_syntax_indicator = br->getBits(1); ALOGV(" section_syntax_indicator = %u", section_syntax_indicator); - CHECK_EQ(section_syntax_indicator, 1u); + if (section_syntax_indicator != 1u) { + ALOGE("PMT data error!"); + return ERROR_MALFORMED; + } CHECK_EQ(br->getBits(1), 0u); MY_LOGV(" reserved = %u", br->getBits(2)); @@ -739,8 +744,10 @@ status_t ATSParser::Stream::parsePES(ABitReader *br) { if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) { CHECK_GE(optional_bytes_remaining, 5u); - CHECK_EQ(br->getBits(4), PTS_DTS_flags); - + if (br->getBits(4) != PTS_DTS_flags) { + ALOGE("PES data Error!"); + return ERROR_MALFORMED; + } PTS = ((uint64_t)br->getBits(3)) << 30; CHECK_EQ(br->getBits(1), 1u); PTS |= ((uint64_t)br->getBits(15)) << 15; @@ -1003,8 +1010,10 @@ void ATSParser::signalEOS(status_t finalResult) { void ATSParser::parseProgramAssociationTable(ABitReader *br) { unsigned table_id = br->getBits(8); ALOGV(" table_id = %u", table_id); - CHECK_EQ(table_id, 0x00u); - + if (table_id != 0x00u) { + ALOGE("PAT data error!"); + return ; + } unsigned section_syntax_indictor = br->getBits(1); ALOGV(" section_syntax_indictor = %u", section_syntax_indictor); CHECK_EQ(section_syntax_indictor, 1u); @@ -1074,7 +1083,9 @@ status_t ATSParser::parsePID( sp<PSISection> section = mPSISections.valueAt(sectionIndex); if (payload_unit_start_indicator) { - CHECK(section->isEmpty()); + if (!section->isEmpty()) { + return ERROR_UNSUPPORTED; + } unsigned skip = br->getBits(8); br->skipBits(skip * 8); @@ -1203,7 +1214,10 @@ status_t ATSParser::parseTS(ABitReader *br) { ALOGV("---"); unsigned sync_byte = br->getBits(8); - CHECK_EQ(sync_byte, 0x47u); + if (sync_byte != 0x47u) { + ALOGE("[error] parseTS: return error as sync_byte=0x%x", sync_byte); + return BAD_VALUE; + } if (br->getBits(1)) { // transport_error_indicator // silently ignore. |