Add initial support for matroska / webm

CONTRIBUTORS

@@ -16,6 +16,7 @@ Thom Chiovoloni <chiovolonit@gmail.com>
 # Please keep this section sorted in ascending order.
 
 BlackHoleFox [https://github.com/blackholefox]
+darksv [https://github.com/darksv]
 djugei [https://github.com/djugei]
 FelixMcFelix [https://github.com/FelixMcFelix]
 Herohtar [https://github.com/herohtar]

symphonia-format-mkv/Cargo.toml

@@ -1,17 +1,19 @@
 [package]
 name = "symphonia-format-mkv"
-version = "0.0.1"
+version = "0.4.0"
 description = "Pure Rust MKV/WebM demuxer (a part of project Symphonia)."
 homepage = "https://github.com/pdeljanov/Symphonia"
 repository = "https://github.com/pdeljanov/Symphonia"
-authors = ["Philip Deljanov <philip.deljanov@gmail.com>"]
+authors = ["Dariusz Niedoba <dariusz.niedoba@gmail.com>"]
 license = "MPL-2.0"
 readme = "README.md"
 categories = ["multimedia", "multimedia::audio", "multimedia::encoding"]
-keywords = ["audio", "media", "demuxer", "mp4", "iso"]
+keywords = ["audio", "media", "demuxer", "mkv", "matroska", "webm"]
 edition = "2018"
 
 [dependencies]
 log = "0.4"
+lazy_static = "1.4.0"
 symphonia-core = { version = "0.4", path = "../symphonia-core" }
-symphonia-metadata = { version = "0.4", path = "../symphonia-metadata" }
+symphonia-metadata = { version = "0.4", path = "../symphonia-metadata" }
+symphonia-utils-xiph = { version = "0.4", path = "../symphonia-utils-xiph" }

symphonia-format-mkv/README.md

@@ -1,8 +1,6 @@
 # Symphonia MKV/WebM Demuxer
 
-This is a placeholder crate for Project Symphonia's MKV/WebM Demuxer.
-
-Please consider contributing!
+MKV/WebM demuxer for Project Symphonia.
 
 **Note:** This crate is part of Symphonia. Please use the [`symphonia`](https://crates.io/crates/symphonia) crate instead of this one directly.
 

symphonia-format-mkv/src/codecs.rs

@@ -0,0 +1,48 @@
+// Symphonia
+// Copyright (c) 2019-2022 The Project Symphonia Developers.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+use symphonia_core::codecs;
+use symphonia_core::codecs::CodecType;
+
+use crate::segment::TrackElement;
+
+pub(crate) fn codec_id_to_type(track: &TrackElement) -> Option<CodecType> {
+    let bit_depth = track.audio.as_ref().and_then(|a| a.bit_depth);
+
+    match track.codec_id.as_str() {
+        "A_MPEG/L1" => Some(codecs::CODEC_TYPE_MP1),
+        "A_MPEG/L2" => Some(codecs::CODEC_TYPE_MP2),
+        "A_MPEG/L3" => Some(codecs::CODEC_TYPE_MP3),
+        "A_FLAC" => Some(codecs::CODEC_TYPE_FLAC),
+        "A_OPUS" => Some(codecs::CODEC_TYPE_OPUS),
+        "A_VORBIS" => Some(codecs::CODEC_TYPE_VORBIS),
+        "A_AAC/MPEG2/MAIN" | "A_AAC/MPEG2/LC" | "A_AAC/MPEG2/LC/SBR" | "A_AAC/MPEG2/SSR"
+        | "A_AAC/MPEG4/MAIN" | "A_AAC/MPEG4/LC" | "A_AAC/MPEG4/LC/SBR" | "A_AAC/MPEG4/SSR"
+        | "A_AAC/MPEG4/LTP" | "A_AAC" => Some(codecs::CODEC_TYPE_AAC),
+        "A_PCM/INT/BIG" => match bit_depth? {
+            16 => Some(codecs::CODEC_TYPE_PCM_S16BE),
+            24 => Some(codecs::CODEC_TYPE_PCM_S24BE),
+            32 => Some(codecs::CODEC_TYPE_PCM_S32BE),
+            _ => None,
+        },
+        "A_PCM/INT/LIT" => match bit_depth? {
+            16 => Some(codecs::CODEC_TYPE_PCM_S16LE),
+            24 => Some(codecs::CODEC_TYPE_PCM_S24LE),
+            32 => Some(codecs::CODEC_TYPE_PCM_S32LE),
+            _ => None,
+        },
+        "A_PCM/FLOAT/IEEE" => match bit_depth? {
+            32 => Some(codecs::CODEC_TYPE_PCM_F32LE),
+            64 => Some(codecs::CODEC_TYPE_PCM_F64LE),
+            _ => None,
+        },
+        _ => {
+            log::warn!("unknown codec: {}", &track.codec_id);
+            None
+        }
+    }
+}