stagefright: Adjust confidence threshold for extended sniffers

 * Some sniffers return 0.2 for cases where they only find an audio
   track in some containers.
 * Change the comparison to also examine files right on this threshold.
 * This allows us to score ONE FUCKING HUNDRED PERCENT on the Antutu
   Video Test \o/

Change-Id: I78b6ab8a634771e0e290f669801f5b08d6a32a51
stagefright: Fix FFMPEG catchall decoders

 * Get this metadata properly flowing
 * Allows us to play tracks such as Apple Lossless :)

Change-Id: I2990b30eef5b672da339d24444424c61a43b85c2
stagefright: Increase raw codec buffer size

 * Enlarge the buffer to handle up to 6 channels of 32-bit data.
 * We should probably do this dynamically in the future.

Change-Id: Id1af10b52c4e71e811d0d034baf2d3f1388f4abd
AudioTrack: Reject offloading for non-music streams

Reject AudioTrack initialization if called with non-music
stream type (or attribute) but with AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD.

This will allow the client to fall back to SW decode or
deal with the error appropriately.

CRs-Fixed: 740607
Change-Id: I4d1dda6523bd792ab26b0363e16febcd14b1ad98
stagefright: Revert patches which should not have carried over

 * These patches cause problems on L, revert them.

Revert "Disconnect the mediaplayer when reset"

This reverts commit 9ab0b00dcd43f9f695aec13da4613058f69f7678.

Revert "Remove potential cause of underrun."

This reverts commit a60271120ca16959a9ed0f6a16cfd08543e28375.

Change-Id: I1ee0a447cc5820afd4c068170d6d04b50e45a36d
stagefright: Allocate only what is needed for FLAC decoding

 * Choose buffer size based on bit depth

Change-Id: Ic3aef0ac77f330896dfcfe4cccfc5113925d28b1
Merge branch 'cm-12.0' of https://github.com/CyanogenMod/android_frameworks_av into lp5.0