From 462a71c75b4d326c0ce787cd13f7048e7f5da630 Mon Sep 17 00:00:00 2001
From: Lynne <dev@lynne.ee>
Date: Wed, 18 Dec 2024 11:00:37 +0900
Subject: [PATCH] Add support for ALAC in MP4
> ALAC audio inside MP4 files was what you usually got when you set up iTunes
> to do lossless rips back in the day, and it still has the advantage of being
> the easiest way to get lossless music onto an iPod without a firmware replacement.
Closes #96
---
README.md | 1 +
src/cyanrip_main.c | 1 +
src/cyanrip_main.h | 1 +
3 files changed, 3 insertions(+)
diff --git a/README.md b/README.md
index 2bd572b..34e6db1 100644
--- a/README.md
+++ b/README.md
@@ -166,6 +166,7 @@ The output encoding(s) can be set via the `-o` option as a comma-separated list.
| `mp3` | Standard MP3 files | `.mp3` | :heavy_check_mark: | VBR, use -b to adjust the bitrate, default is 256 (kbps) |
| `vorbis` | Standard Ogg/Vorbis files (in an OGG container) | `.ogg` | ⬜ | Use -b to adjust the bitrate, default is 256 (kbps) |
| `wav` | Standard WAV files | `.wav` | ⬜ | 16-bit little endian signed audio, or 32-bit in HDCD mode |
+| `alac_mp4` | Standard MP4 files (with ALAC encoding) | `.mp4` | :heavy_check_mark: | Always uses maximum compression |
| `aac_mp4` | Standard MP4 files (with AAC encoding) | `.mp4` | :heavy_check_mark: | Use -b to adjust the bitrate, default is 256 (kbps) |
| `opus_mp4` | Standard MP4 files (with Opus encoding) | `.mp4` | :heavy_check_mark: | Use -b to adjust the bitrate, default is 256 (kbps) |
| `pcm` | Raw audio, 16-bits, two channel, little-endian | `.raw` | ⬜ | |
diff --git a/src/cyanrip_main.c b/src/cyanrip_main.c
index 50b439e..64a04c0 100644
--- a/src/cyanrip_main.c
+++ b/src/cyanrip_main.c
@@ -51,6 +51,7 @@ const cyanrip_out_fmt crip_fmt_info[] = {
[CYANRIP_FORMAT_WAVPACK] = { "wavpack", "WV", "wv", "wv", 0, 3, 1, AV_CODEC_ID_WAVPACK, },
[CYANRIP_FORMAT_VORBIS] = { "vorbis", "OGG", "ogg", "ogg", 0, 0, 0, AV_CODEC_ID_VORBIS, },
[CYANRIP_FORMAT_ALAC] = { "alac", "ALAC", "m4a", "ipod", 0, 2, 1, AV_CODEC_ID_ALAC, },
+ [CYANRIP_FORMAT_ALAC_MP4] = { "alac_mp4", "ALAC", "mp4", "mp4", 1, 2, 1, AV_CODEC_ID_ALAC, },
[CYANRIP_FORMAT_WAV] = { "wav", "WAV", "wav", "wav", 0, 0, 1, AV_CODEC_ID_NONE, },
[CYANRIP_FORMAT_OPUS_MP4] = { "opus_mp4", "OPUS", "mp4", "mp4", 1, 10, 0, AV_CODEC_ID_OPUS, },
[CYANRIP_FORMAT_PCM] = { "pcm", "PCM", "pcm", "s16le", 0, 0, 1, AV_CODEC_ID_NONE, },
diff --git a/src/cyanrip_main.h b/src/cyanrip_main.h
index 31ccce0..0efd43d 100644
--- a/src/cyanrip_main.h
+++ b/src/cyanrip_main.h
@@ -43,6 +43,7 @@ enum cyanrip_output_formats {
CYANRIP_FORMAT_AAC,
CYANRIP_FORMAT_WAVPACK,
CYANRIP_FORMAT_ALAC,
+ CYANRIP_FORMAT_ALAC_MP4,
CYANRIP_FORMAT_MP3,
CYANRIP_FORMAT_VORBIS,
CYANRIP_FORMAT_WAV,