Merge "Fix audioflinger in overflow sanitized builds."
diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index 104b324..a8b6614 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -441,65 +441,81 @@
return NULL;
}
- int64_t duration;
- int32_t samplerate;
- if (track->has_elst && mHeaderTimescale != 0 &&
- track->meta->findInt64(kKeyDuration, &duration) &&
- track->meta->findInt32(kKeySampleRate, &samplerate)) {
+ [=] {
+ int64_t duration;
+ int32_t samplerate;
+ if (track->has_elst && mHeaderTimescale != 0 &&
+ track->meta->findInt64(kKeyDuration, &duration) &&
+ track->meta->findInt32(kKeySampleRate, &samplerate)) {
- track->has_elst = false;
+ track->has_elst = false;
- if (track->elst_segment_duration > INT64_MAX) {
- goto editlistoverflow;
+ if (track->elst_segment_duration > INT64_MAX) {
+ return;
+ }
+ int64_t segment_duration = track->elst_segment_duration;
+ int64_t media_time = track->elst_media_time;
+ int64_t halfscale = mHeaderTimescale / 2;
+ ALOGV("segment_duration = %" PRId64 ", media_time = %" PRId64
+ ", halfscale = %" PRId64 ", timescale = %d",
+ segment_duration,
+ media_time,
+ halfscale,
+ mHeaderTimescale);
+
+ int64_t delay;
+ // delay = ((media_time * samplerate) + halfscale) / mHeaderTimescale;
+ if (__builtin_mul_overflow(media_time, samplerate, &delay) ||
+ __builtin_add_overflow(delay, halfscale, &delay) ||
+ (delay /= mHeaderTimescale, false) ||
+ delay > INT32_MAX ||
+ delay < INT32_MIN) {
+ return;
+ }
+ ALOGV("delay = %" PRId64, delay);
+ track->meta->setInt32(kKeyEncoderDelay, delay);
+
+ int64_t scaled_duration;
+ // scaled_duration = duration * mHeaderTimescale;
+ if (__builtin_mul_overflow(duration, mHeaderTimescale, &scaled_duration)) {
+ return;
+ }
+ ALOGV("scaled_duration = %" PRId64, scaled_duration);
+
+ int64_t segment_end;
+ int64_t padding;
+ // padding = scaled_duration - ((segment_duration + media_time) * 1000000);
+ if (__builtin_add_overflow(segment_duration, media_time, &segment_end) ||
+ __builtin_mul_overflow(segment_end, 1000000, &segment_end) ||
+ __builtin_sub_overflow(scaled_duration, segment_end, &padding)) {
+ return;
+ }
+ ALOGV("segment_end = %" PRId64 ", padding = %" PRId64, segment_end, padding);
+
+ if (padding < 0) {
+ // track duration from media header (which is what kKeyDuration is) might
+ // be slightly shorter than the segment duration, which would make the
+ // padding negative. Clamp to zero.
+ padding = 0;
+ }
+
+ int64_t paddingsamples;
+ int64_t halfscale_e6;
+ int64_t timescale_e6;
+ // paddingsamples = ((padding * samplerate) + (halfscale * 1000000))
+ // / (mHeaderTimescale * 1000000);
+ if (__builtin_mul_overflow(padding, samplerate, &paddingsamples) ||
+ __builtin_mul_overflow(halfscale, 1000000, &halfscale_e6) ||
+ __builtin_mul_overflow(mHeaderTimescale, 1000000, ×cale_e6) ||
+ __builtin_add_overflow(paddingsamples, halfscale_e6, &paddingsamples) ||
+ (paddingsamples /= timescale_e6, false) ||
+ paddingsamples > INT32_MAX) {
+ return;
+ }
+ ALOGV("paddingsamples = %" PRId64, paddingsamples);
+ track->meta->setInt32(kKeyEncoderPadding, paddingsamples);
}
- int64_t segment_duration = track->elst_segment_duration;
- int64_t media_time = track->elst_media_time;
- int64_t halfscale = mHeaderTimescale / 2;
-
- int64_t delay;
- // delay = ((media_time * samplerate) + halfscale) / mHeaderTimescale;
- if (__builtin_mul_overflow(media_time, samplerate, &delay) ||
- __builtin_add_overflow(delay, halfscale, &delay) ||
- (delay /= mHeaderTimescale, false) ||
- delay > INT32_MAX ||
- delay < INT32_MIN) {
- goto editlistoverflow;
- }
- track->meta->setInt32(kKeyEncoderDelay, delay);
-
- int64_t scaled_duration;
- // scaled_duration = ((duration * mHeaderTimescale) + 500000) / 1000000;
- if (__builtin_mul_overflow(duration, mHeaderTimescale, &scaled_duration) ||
- __builtin_add_overflow(scaled_duration, 500000, &scaled_duration)) {
- goto editlistoverflow;
- }
- scaled_duration /= 1000000;
-
- int64_t segment_end;
- int64_t padding;
- if (__builtin_add_overflow(segment_duration, media_time, &segment_end) ||
- __builtin_sub_overflow(scaled_duration, segment_end, &padding)) {
- goto editlistoverflow;
- }
-
- if (padding < 0) {
- // track duration from media header (which is what kKeyDuration is) might
- // be slightly shorter than the segment duration, which would make the
- // padding negative. Clamp to zero.
- padding = 0;
- }
-
- int64_t paddingsamples;
- // paddingsamples = ((padding * samplerate) + halfscale) / mHeaderTimescale;
- if (__builtin_mul_overflow(padding, samplerate, &paddingsamples) ||
- __builtin_add_overflow(paddingsamples, halfscale, &paddingsamples) ||
- (paddingsamples /= mHeaderTimescale, false) ||
- paddingsamples > INT32_MAX) {
- goto editlistoverflow;
- }
- track->meta->setInt32(kKeyEncoderPadding, paddingsamples);
- }
- editlistoverflow:
+ }();
if ((flags & kIncludeExtensiveMetaData)
&& !track->includes_expensive_metadata) {
diff --git a/services/audioflinger/FastMixerDumpState.cpp b/services/audioflinger/FastMixerDumpState.cpp
index 6475f22..2e4fb8c 100644
--- a/services/audioflinger/FastMixerDumpState.cpp
+++ b/services/audioflinger/FastMixerDumpState.cpp
@@ -78,7 +78,12 @@
uint32_t bounds = mBounds;
uint32_t newestOpen = bounds & 0xFFFF;
uint32_t oldestClosed = bounds >> 16;
- uint32_t n = (newestOpen - oldestClosed) & 0xFFFF;
+
+ //uint32_t n = (newestOpen - oldestClosed) & 0xFFFF;
+ uint32_t n;
+ __builtin_sub_overflow(newestOpen, oldestClosed, &n);
+ n = n & 0xFFFF;
+
if (n > mSamplingN) {
ALOGE("too many samples %u", n);
n = mSamplingN;
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index b417631..7af2e74 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -859,7 +859,7 @@
}
// check same pending commands with later time stamps and eliminate them
- for (i = mAudioCommands.size()-1; i >= 0; i--) {
+ for (i = (ssize_t)mAudioCommands.size()-1; i >= 0; i--) {
sp<AudioCommand> command2 = mAudioCommands[i];
// commands are sorted by increasing time stamp: no need to scan the rest of mAudioCommands
if (command2->mTime <= command->mTime) break;