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| author | guruprasadX, pawse <guruprasadx.pawse@intel.com> | 2013-12-17 18:41:51 +0530 |
|---|---|---|
| committer | Steve Kondik <steve@cyngn.com> | 2016-08-24 11:02:03 -0700 |
| commit | 5308e9a0288411656eebd9e8eb58519f272e2ff9 (patch) | |
| tree | ac29ad7276a9ec5c2d081a61db172e5b40ad9edf | |
| parent | 3c74c11c30cdae95914c0b6a9228a3906b238c73 (diff) | |
| download | android_external_flac-staging/cm-14.1-cafrebase.tar.gz android_external_flac-staging/cm-14.1-cafrebase.tar.bz2 android_external_flac-staging/cm-14.1-cafrebase.zip | |
Noise and sometimes tombstone crash observed while seeking FLAC content during playbackstaging/cm-14.1-cafrebasecm-14.1_prerebasecm-14.1_oldcm-14.0
This patch resolves two issues:
1. Segmentation fault while seeking.
2. Noise during seek.
The rootcause of both the above issue are same. Issue happens due to
memory corruption of FLAC write buffer during seek. Due to this incorrect
address we always observe noise during seek and sometimes the memory read
causes seg fault whenever the memory access goes beyond the valid range.
Change-Id: If76ca4ab614a02f8b324fc51684d5d9cf25073c8
Signed-off-by: guruprasadX, pawse <guruprasadx.pawse@intel.com>
Signed-off-by: Mazhar <mazharx.sameullah@intel.com>
| -rw-r--r-- | libFLAC/stream_decoder.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libFLAC/stream_decoder.c b/libFLAC/stream_decoder.c index 27bac3e..3ede26f 100644 --- a/libFLAC/stream_decoder.c +++ b/libFLAC/stream_decoder.c @@ -177,6 +177,7 @@ typedef struct FLAC__StreamDecoderPrivate { #if FLAC__HAS_OGG FLAC__bool got_a_frame; /* hack needed in Ogg FLAC seek routine to check when process_single() actually writes a frame */ #endif + FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS]; } FLAC__StreamDecoderPrivate; /*********************************************************************** @@ -2959,13 +2960,12 @@ FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder /* shift out the samples before target_sample */ if(delta > 0) { unsigned channel; - const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS]; for(channel = 0; channel < frame->header.channels; channel++) - newbuffer[channel] = buffer[channel] + delta; + decoder->private_->newbuffer[channel] = (FLAC__int32 *)buffer[channel] + delta; decoder->private_->last_frame.header.blocksize -= delta; decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta; /* write the relevant samples */ - return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, newbuffer, decoder->private_->client_data); + return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, (const FLAC__int32 * const *)decoder->private_->newbuffer, decoder->private_->client_data); } else { /* write the relevant samples */ |