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more SAF implementation

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* full support for Directory API (Android Lollipop or later)
* best effort to handle any kind errors (missing file, revoked permissions, etc) and recover the download
* implemented directory choosing
* fix download database version upgrading
* misc. cleanup
* do not release permission on the old save path (if the user change the download directory) under SAF api
This commit is contained in:
kapodamy 2019-04-09 18:38:34 -03:00
parent f6b32823ba
commit d00dc798f4
28 changed files with 946 additions and 589 deletions
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15
app/src/main/java/us/shandian/giga/postprocessing/Postprocessing.java
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@ -8,6 +8,7 @@ import org.schabi.newpipe.streams.io.SharpStream;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import us.shandian.giga.get.DownloadMission;
import us.shandian.giga.io.ChunkFileInputStream;
@ -19,7 +20,7 @@ import static us.shandian.giga.get.DownloadMission.ERROR_NOTHING;
import static us.shandian.giga.get.DownloadMission.ERROR_POSTPROCESSING_HOLD;
import static us.shandian.giga.get.DownloadMission.ERROR_UNKNOWN_EXCEPTION;
public abstract class Postprocessing {
public abstract class Postprocessing implements Serializable {
static transient final byte OK_RESULT = ERROR_NOTHING;
@ -28,12 +29,10 @@ public abstract class Postprocessing {
public transient static final String ALGORITHM_MP4_FROM_DASH_MUXER = "mp4D-mp4";
public transient static final String ALGORITHM_M4A_NO_DASH = "mp4D-m4a";
public static Postprocessing getAlgorithm(String algorithmName, String[] args) {
public static Postprocessing getAlgorithm(@NonNull String algorithmName, String[] args, @NonNull File cacheDir) {
Postprocessing instance;
if (null == algorithmName) {
throw new NullPointerException("algorithmName");
} else switch (algorithmName) {
switch (algorithmName) {
case ALGORITHM_TTML_CONVERTER:
instance = new TtmlConverter();
break;
@ -47,13 +46,14 @@ public abstract class Postprocessing {
instance = new M4aNoDash();
break;
/*case "example-algorithm":
instance = new ExampleAlgorithm(mission);*/
instance = new ExampleAlgorithm();*/
default:
throw new RuntimeException("Unimplemented post-processing algorithm: " + algorithmName);
}
instance.args = args;
instance.name = algorithmName;
instance.name = algorithmName;// for debug only, maybe remove this field in the future
instance.cacheDir = cacheDir;
return instance;
}
@ -125,7 +125,6 @@ public abstract class Postprocessing {
return -1;
};
// TODO: use Context.getCache() for this operation
temp = new File(cacheDir, mission.storage.getName() + ".tmp");
out = new CircularFileWriter(mission.storage.getStream(), temp, checker);