am 1526c2e1: am 96a7b5a9: Merge "Long mp3 metadata displays as corrupted file after transfer" (4f8bb114) · Commits · e / os / android_frameworks_av

media/mtp/MtpDataPacket.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -331,7 +331,7 @@ void MtpDataPacket::putString(const char* s) {

		void MtpDataPacket::putString(const uint16_t* string) {
		int count = 0;
		for (int i = 0; i < 256; i++) {
		for (int i = 0; i <= MTP_STRING_MAX_CHARACTER_NUMBER; i++) {
		if (string[i])
		count++;
		else

media/mtp/MtpStringBuffer.cpp

+21 −16

Original line number	Diff line number	Diff line
		@@ -56,42 +56,47 @@ MtpStringBuffer::~MtpStringBuffer() {
		}

		void MtpStringBuffer::set(const char* src) {
		int length = strlen(src);
		if (length >= sizeof(mBuffer))
		length = sizeof(mBuffer) - 1;
		memcpy(mBuffer, src, length);

		// count the characters
		int count = 0;
		char ch;
		while ((ch = *src++) != 0) {
		char* dest = (char*)mBuffer;

		while ((ch = *src++) != 0 && count < MTP_STRING_MAX_CHARACTER_NUMBER) {
		if ((ch & 0x80) == 0) {
		// single byte character
		*dest++ = ch;
		} else if ((ch & 0xE0) == 0xC0) {
		// two byte character
		if (! *src++) {
		char ch1 = *src++;
		if (! ch1) {
		// last character was truncated, so ignore last byte
		length--;
		break;
		}

		*dest++ = ch;
		*dest++ = ch1;
		} else if ((ch & 0xF0) == 0xE0) {
		// 3 byte char
		if (! *src++) {
		char ch1 = *src++;
		if (! ch1) {
		// last character was truncated, so ignore last byte
		length--;
		break;
		}
		if (! *src++) {
		// last character was truncated, so ignore last two bytes
		length -= 2;
		char ch2 = *src++;
		if (! ch2) {
		// last character was truncated, so ignore last byte
		break;
		}

		*dest++ = ch;
		*dest++ = ch1;
		*dest++ = ch2;
		}
		count++;
		}

		mByteCount = length + 1;
		mBuffer[length] = 0;
		*dest++ = 0;
		mByteCount = dest - (char*)mBuffer;
		mCharCount = count;
		}

		@@ -100,7 +105,7 @@ void MtpStringBuffer::set(const uint16_t* src) {
		uint16_t ch;
		uint8_t* dest = mBuffer;

		while ((ch = *src++) != 0 && count < 255) {
		while ((ch = *src++) != 0 && count < MTP_STRING_MAX_CHARACTER_NUMBER) {
		if (ch >= 0x0800) {
		*dest++ = (uint8_t)(0xE0 \| (ch >> 12));
		*dest++ = (uint8_t)(0x80 \| ((ch >> 6) & 0x3F));

media/mtp/MtpStringBuffer.h

+4 −1

Original line number	Diff line number	Diff line
		@@ -19,6 +19,9 @@

		#include <stdint.h>

		// Max Character number of a MTP String
		#define MTP_STRING_MAX_CHARACTER_NUMBER 255

		namespace android {

		class MtpDataPacket;
		@@ -29,7 +32,7 @@ class MtpStringBuffer {
		private:
		// mBuffer contains string in UTF8 format
		// maximum 3 bytes/character, with 1 extra for zero termination
		uint8_t mBuffer[255 * 3 + 1];
		uint8_t mBuffer[MTP_STRING_MAX_CHARACTER_NUMBER * 3 + 1];
		int mCharCount;
		int mByteCount;