Add support for parsing all the codec flags

* Add support for parsing all the codec flags, e.g IntraFrameOnly, Lossy and Lossless.

Author: bramp

src/main/java/net/bramp/ffmpeg/info/Codec.java

@@ -25,6 +25,15 @@ public class Codec {
   /** What type of codec is this */
   private final CodecType type;
 
+  /** Intra frame only codec */
+  final boolean intraFrameOnly;
+
+  /** Codec supports lossy compression */
+  final boolean lossyCompression;
+
+  /** Codeco supports lessless compression */
+  final boolean losslessCompression;
+
   /**
    * @param name short codec name
    * @param longName long codec name
@@ -35,6 +44,8 @@ public class Codec {
    * ..V... = Video codec
    * ..A... = Audio codec
    * ..S... = Subtitle codec
+   * ..D... = Data codec
+   * ..T... = Attachment codec
    * ...I.. = Intra frame-only codec
    * ....L. = Lossy compression
    * .....S = Lossless compression
@@ -45,9 +56,19 @@ public Codec(String name, String longName, String flags) {
     this.longName = Preconditions.checkNotNull(longName).trim();
 
     Preconditions.checkNotNull(flags);
-    Preconditions.checkArgument(flags.length() == 6, "Format flags is invalid '%s'", flags);
-    this.canDecode = flags.charAt(0) == 'D';
-    this.canEncode = flags.charAt(1) == 'E';
+    Preconditions.checkArgument(flags.length() == 6, "Codec flags is invalid '%s'", flags);
+
+    switch (flags.charAt(0)) {
+      case 'D': this.canDecode = true; break;
+      case '.': this.canDecode = false; break;
+      default: throw new IllegalArgumentException("Invalid decoding value '" + flags.charAt(0) + "'");
+    }
+
+    switch (flags.charAt(1)) {
+      case 'E': this.canEncode = true; break;
+      case '.': this.canEncode = false; break;
+      default: throw new IllegalArgumentException("Invalid encoding value '" + flags.charAt(1) + "'");
+    }
 
     switch (flags.charAt(2)) {
       case 'V':
@@ -69,7 +90,24 @@ public Codec(String name, String longName, String flags) {
         throw new IllegalArgumentException("Invalid codec type '" + flags.charAt(2) + "'");
     }
 
-    // TODO There are more flags to parse
+    switch (flags.charAt(3)) {
+      case 'I': this.intraFrameOnly = true; break;
+      case '.': this.intraFrameOnly = false; break;
+      default: throw new IllegalArgumentException("Invalid encoding value '" + flags.charAt(3) + "'");
+    }
+
+    switch (flags.charAt(4)) {
+      case 'L': this.lossyCompression = true; break;
+      case '.': this.lossyCompression = false; break;
+      default: throw new IllegalArgumentException("Invalid lossy compression value '" + flags.charAt(4) + "'");
+    }
+
+    switch (flags.charAt(5)) {
+      case 'S': this.losslessCompression = true; break;
+      case '.': this.losslessCompression = false; break;
+      default: throw new IllegalArgumentException("Invalid lossless compression value '" + flags.charAt(5) + "'");
+    }
+
   }
 
   @Override
@@ -106,4 +144,17 @@ public boolean getCanEncode() {
   public CodecType getType() {
     return type;
   }
+
+  public boolean isIntraFrameOnly() {
+    return intraFrameOnly;
+  }
+
+  public boolean supportsLossyCompression() {
+    return lossyCompression;
+  }
+
+  public boolean supportsLosslessCompression() {
+    return losslessCompression;
+  }
+
 }

src/test/java/net/bramp/ffmpeg/info/CodecTest.java

@@ -0,0 +1,82 @@
+package net.bramp.ffmpeg.info;
+
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+import org.junit.Test;
+
+import net.bramp.ffmpeg.shared.CodecType;
+
+public class CodecTest {
+    @Test
+    public void testCodecConstructor() {
+        Codec c1 = new Codec("012v", "Uncompressed 4:2:2 10-bit", "D.VI.S");
+        assertThat(c1.getName(), is("012v"));
+        assertThat(c1.getLongName(), is("Uncompressed 4:2:2 10-bit"));
+        assertThat(c1.getCanDecode(), is(true));
+        assertThat(c1.getCanEncode(), is(false));
+        assertThat(c1.getType(), is(CodecType.VIDEO));
+        assertThat(c1.isIntraFrameOnly(), is(true));
+        assertThat(c1.supportsLossyCompression(), is(false));
+        assertThat(c1.losslessCompression, is(true));
+        
+        Codec c2 = new Codec("4xm", "4X Movie", "D.V.L.");
+        assertThat(c2.getName(), is("4xm"));
+        assertThat(c2.getLongName(), is("4X Movie"));
+        assertThat(c2.getCanDecode(), is(true));
+        assertThat(c2.getCanEncode(), is(false));
+        assertThat(c2.getType(), is(CodecType.VIDEO));
+        assertThat(c2.isIntraFrameOnly(), is(false));
+        assertThat(c2.supportsLossyCompression(), is(true));
+        assertThat(c2.supportsLosslessCompression(), is(false));
+
+        Codec c3 = new Codec("alias_pix", "Alias/Wavefront PIX image", "DEVI.S");
+        assertThat(c3.getName(), is("alias_pix"));
+        assertThat(c3.getLongName(), is("Alias/Wavefront PIX image"));
+        assertThat(c3.getCanDecode(), is(true));
+        assertThat(c3.getCanEncode(), is(true));
+        assertThat(c3.getType(), is(CodecType.VIDEO));
+        assertThat(c3.isIntraFrameOnly(), is(true));
+        assertThat(c3.supportsLossyCompression(), is(false));
+        assertThat(c3.supportsLosslessCompression(), is(true));
+
+        Codec c4 = new Codec("binkaudio_rdft", "Bink Audio (RDFT)", "D.AIL.");
+        assertThat(c4.getType(), is(CodecType.AUDIO));
+
+        Codec c6 = new Codec("mov_text", "MOV text", "DES...");
+        assertThat(c6.getType(), is(CodecType.SUBTITLE));
+
+        Codec c7 = new Codec("bin_data", "binary data", "..D...");
+        assertThat(c7.getType(), is(CodecType.DATA));
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadDecodeValue() {
+        new Codec("test", "test", "X.V...");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadEncodeValue() {
+        new Codec("test", "test", ".XV...");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadCodecValue() {
+        new Codec("test", "test", "..X...");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadIntraFrameOnlyValue() {
+        new Codec("test", "test", "..VX..");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadLossyValue() {
+        new Codec("test", "test", "..V.X.");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testBadLosslessValue() {
+        new Codec("test", "test", "..V..X");
+    }
+}