mpv2oboeru

Commit: cdb3f67c49983084db9b0f1d060384dc4ff5f80e
Parent: 7fc6480dd989a084bfb1e3564bbffcda8a7a899f
Author: Ren Tatsumoto
Date:   Mon, 16 Nov 2020 00:47:42 +0300

use opus and webp only if they're supported

see #11

Diffstat:
M
subs2srs.lua
 | 
14
++++++++++++--

1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/subs2srs.lua b/subs2srs.lua
@@ -446,6 +446,16 @@ end
 
 local validate_config
 do
+    local function is_webp_supported()
+        local ret = subprocess { 'mpv', '--ovc=help' }
+        return ret.status == 0 and ret.stdout:match('--ovc=libwebp')
+    end
+
+    local function is_opus_supported()
+        local ret = subprocess { 'mpv', '--oac=help' }
+        return ret.status == 0 and ret.stdout:match('--oac=libopus')
+    end
+
     local function set_collection_path()
         if not is_dir(config.collection_path) then
             -- collection path wasn't specified. construct it using config.anki_user
@@ -454,7 +464,7 @@ do
     end
 
     local function set_audio_format()
-        if config.audio_format == 'opus' then
+        if config.audio_format == 'opus' and is_opus_supported() then
             config.audio_codec = 'libopus'
             config.audio_extension = '.ogg'
         else
@@ -464,7 +474,7 @@ do
     end
 
     local function set_video_format()
-        if config.snapshot_format == 'webp' then
+        if config.snapshot_format == 'webp' and is_webp_supported() then
             config.snapshot_extension = '.webp'
             config.snapshot_codec = 'libwebp'
         else