A new OggExtractor/VorbisDecoder combo to support approximate seeking.

Change-Id: Id5d0c1c8b1adc62896bb5ed951f7b5cfda811e95
related-to-bug: 2654400

1 files changed, 12 insertions, 0 deletions

diff --git a/media/libstagefright/Utils.cpp b/media/libstagefright/Utils.cpp
index 2720f93..c563ce6 100644
--- a/media/libstagefright/Utils.cpp
+++ b/media/libstagefright/Utils.cpp
@@ -32,6 +32,18 @@ uint64_t U64_AT(const uint8_t *ptr) {
     return ((uint64_t)U32_AT(ptr)) << 32 | U32_AT(ptr + 4);
 }
 
+uint16_t U16LE_AT(const uint8_t *ptr) {
+    return ptr[0] | (ptr[1] << 8);
+}
+
+uint32_t U32LE_AT(const uint8_t *ptr) {
+    return ptr[3] << 24 | ptr[2] << 16 | ptr[1] << 8 | ptr[0];
+}
+
+uint64_t U64LE_AT(const uint8_t *ptr) {
+    return ((uint64_t)U32LE_AT(ptr + 4)) << 32 | U32LE_AT(ptr);
+}
+
 // XXX warning: these won't work on big-endian host.
 uint64_t ntoh64(uint64_t x) {
     return ((uint64_t)ntohl(x & 0xffffffff) << 32) | ntohl(x >> 32);