Merge "MPEG4Extractor: parse Sample Auxiliary Information in mdat" into rvc-dev (bf74c089) · Commits · e / os / android_frameworks_av

media/extractors/mp4/MPEG4Extractor.cpp

+24 −1

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@
		#include <ctype.h>
		#include <inttypes.h>
		#include <algorithm>
		#include <map>
		#include <memory>
		#include <stdint.h>
		#include <stdlib.h>
		@@ -204,6 +205,7 @@ private:
		Vector<size_t> encryptedsizes;
		};
		Vector<Sample> mCurrentSamples;
		std::map<off64_t, uint32_t> mDrmOffsets;

		MPEG4Source(const MPEG4Source &);
		MPEG4Source &operator=(const MPEG4Source &);
		@@ -5153,6 +5155,9 @@ status_t MPEG4Source::parseChunk(off64_t *offset) {
		if (chunk_type == FOURCC("moof")) {
		mNextMoofOffset = *offset;
		break;
		} else if (chunk_type == FOURCC("mdat")) {
		parseChunk(offset);
		continue;
		} else if (chunk_size == 0) {
		break;
		}
		@@ -5214,6 +5219,22 @@ status_t MPEG4Source::parseChunk(off64_t *offset) {
		// parse DRM info if present
		ALOGV("MPEG4Source::parseChunk mdat");
		// if saiz/saoi was previously observed, do something with the sampleinfos
		status_t err = OK;
		auto kv = mDrmOffsets.lower_bound(*offset);
		if (kv != mDrmOffsets.end()) {
		auto drmoffset = kv->first;
		auto flags = kv->second;
		mDrmOffsets.erase(kv);
		ALOGV("mdat chunk_size %" PRIu64 " drmoffset %" PRId64 " offset %" PRId64,
		chunk_size, drmoffset, *offset);
		if (chunk_size >= drmoffset - *offset) {
		err = parseClearEncryptedSizes(drmoffset, false, flags,
		chunk_size - (drmoffset - *offset));
		}
		}
		if (err != OK) {
		return err;
		}
		*offset += chunk_size;
		break;
		}
		@@ -5395,8 +5416,10 @@ status_t MPEG4Source::parseSampleAuxiliaryInformationOffsets(
		off64_t drmoffset = mCurrentSampleInfoOffsets[0]; // from moof

		drmoffset += mCurrentMoofOffset;
		mDrmOffsets[drmoffset] = flags;
		ALOGV("saio drmoffset %" PRId64 " flags %u", drmoffset, flags);

		return parseClearEncryptedSizes(drmoffset, false, 0, mCurrentMoofSize);
		return OK;
		}

		status_t MPEG4Source::parseClearEncryptedSizes(