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[APU] Rewrite XMA packet parser

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Use new FFmpeg frame decoder
This commit is contained in:
Joel Linn
2020-06-24 16:45:55 +02:00
committed by Rick Gibbed
parent 7a0236dcc5
commit 6547fa1748
3 changed files with 460 additions and 349 deletions
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15
src/xenia/apu/xma_helpers.h
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@@ -2,7 +2,7 @@
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2015 Ben Vanik. All rights reserved. *
* Copyright 2021 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
@@ -18,6 +18,8 @@ namespace xe {
namespace apu {
namespace xma {
static const uint32_t kMaxFrameLength = 0x7FFF;
// Get number of frames that /begin/ in this packet.
uint32_t GetPacketFrameCount(uint8_t* packet) {
return (uint8_t)(packet[0] >> 2);
@@ -27,11 +29,12 @@ uint32_t GetPacketFrameCount(uint8_t* packet) {
uint32_t GetPacketFrameOffset(uint8_t* packet) {
uint32_t val = (uint16_t)(((packet[0] & 0x3) << 13) | (packet[1] << 5) |
(packet[2] >> 3));
if (val == 0x7FFF) {
return -1;
} else {
return val + 32;
}
// if (val > kBitsPerPacket - kBitsPerHeader) {
// // There is no data in this packet
// return -1;
// } else {
return val + 32;
// }
}
uint32_t GetPacketMetadata(uint8_t* packet) {