Throw a special RendererException when we have a MediaCodec crash so we have much more info for debugging

src/com/limelight/binding/video/MediaCodecDecoderRenderer.java

@@ -33,6 +33,11 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 	private long decoderTimeMs;
 	private int totalFrames;
 	
+	private String decoderName;
+	private int numSpsIn;
+	private int numPpsIn;
+	private int numIframeIn;
+	
 	private final static byte[] BITSTREAM_RESTRICTIONS = new byte[] {(byte) 0xF1, (byte) 0x83, 0x2A, 0x00};
 	
 	public static final List<String> blacklistedDecoderPrefixes;
@@ -186,10 +191,12 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 			return false;
 		}
 		
+		decoderName = decoder.getName();
+		
 		// Codecs have been known to throw all sorts of crazy runtime exceptions
 		// due to implementation problems
 		try {
-			videoDecoder = MediaCodec.createByCodecName(decoder.getName());
+			videoDecoder = MediaCodec.createByCodecName(decoderName);
 		} catch (Exception e) {
 			return false;
 		}
@@ -233,7 +240,9 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 						}
 					}
 					
+					try {
 						int outIndex = videoDecoder.dequeueOutputBuffer(info, 0);
+
 					    if (outIndex >= 0) {
 					    	long presentationTimeUs = info.presentationTimeUs;
 						    int lastIndex = outIndex;
@@ -270,6 +279,9 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 						      break;
 						    }
 					    }
+					} catch (Exception e) {
+						throw new RendererException(MediaCodecDecoderRenderer.this, e);
+					}
 				}
 			}
 		};
@@ -318,7 +330,11 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 				return false;
 			}
 			
+			try {
 				inputIndex = videoDecoder.dequeueInputBuffer(100000);
+			} catch (Exception e) {
+				throw new RendererException(this, e);
+			}
 		} while (inputIndex < 0);
 		
 		ByteBuffer buf = videoDecoderInputBuffers[inputIndex];
@@ -340,12 +356,15 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 		}
 		if ((decodeUnitFlags & DecodeUnit.DU_FLAG_SYNC_FRAME) != 0) {
 			codecFlags |= MediaCodec.BUFFER_FLAG_SYNC_FRAME;
+			numIframeIn++;
 		}
 		
-		if ((decodeUnitFlags & DecodeUnit.DU_FLAG_CODEC_CONFIG) != 0 &&
+		if ((decodeUnitFlags & DecodeUnit.DU_FLAG_CODEC_CONFIG) != 0) {
-			(needsSpsBitstreamFixup || needsSpsNumRefFixup)) {
 			ByteBufferDescriptor header = decodeUnit.getBufferList().get(0);
 			if (header.data[header.offset+4] == 0x67) {
+				numSpsIn++;
+				
+				if ((needsSpsBitstreamFixup || needsSpsNumRefFixup)) {
 					byte last = header.data[header.length+header.offset-1];
 
 					// TI OMAP4 requires a reference frame count of 1 to decode successfully
@@ -393,18 +412,24 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 							buf.put(header.data, header.offset, header.length);
 							spsLength = header.length;
 						}
-
 					}
 					else {
 						buf.put(header.data, header.offset, header.length);
 						spsLength = header.length;
 					}
 					
+					try {
 						videoDecoder.queueInputBuffer(inputIndex,
 								0, spsLength,
 								currentTime * 1000, codecFlags);
+					} catch (Exception e) {
+						throw new RendererException(this, e, buf, codecFlags);
+					}
 					return true;
 				}
+			} else if (header.data[header.offset+4] == 0x68) {
+				numPpsIn++;
+			}
 		}
 
 		// Copy data from our buffer list into the input buffer
@@ -413,9 +438,13 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 			buf.put(desc.data, desc.offset, desc.length);
 		}
 
+		try {
 			videoDecoder.queueInputBuffer(inputIndex,
 					0, decodeUnit.getDataLength(),
 					currentTime * 1000, codecFlags);
+		} catch (Exception e) {
+			throw new RendererException(this, e, buf, codecFlags);
+		}
 		
 		return true;
 	}
@@ -519,4 +548,47 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
 		}
 		return (int)(totalTimeMs / totalFrames);
 	}
+	
+	public class RendererException extends RuntimeException {
+		private static final long serialVersionUID = 8985937536997012406L;
+		
+		private Exception originalException;
+		private MediaCodecDecoderRenderer renderer;
+		private ByteBuffer currentBuffer;
+		private int currentCodecFlags;
+		
+		public RendererException(MediaCodecDecoderRenderer renderer, Exception e) {
+			this.renderer = renderer;
+			this.originalException = e;
+		}
+		
+		public RendererException(MediaCodecDecoderRenderer renderer, Exception e, ByteBuffer currentBuffer, int currentCodecFlags) {
+			this.renderer = renderer;
+			this.originalException = e;
+			this.currentBuffer = currentBuffer;
+			this.currentCodecFlags = currentCodecFlags;
+		}
+		
+		public String toString() {
+			String str = "";
+			
+			str += "Decoder: "+renderer.decoderName+"\n";
+			str += "In stats: "+renderer.numSpsIn+", "+renderer.numPpsIn+", "+renderer.numIframeIn+"\n";
+			str += "Total frames: "+renderer.totalFrames+"\n";
+			
+			if (currentBuffer != null) {
+				str += "Current buffer: ";
+				currentBuffer.flip();
+				while (currentBuffer.hasRemaining() && currentBuffer.position() < 10) {
+					str += String.format("%02x ", currentBuffer.get());
+				}
+				str += "\n";
+				str += "Buffer codec flags: "+currentCodecFlags+"\n";
+			}
+			
+			str += originalException.toString();
+			
+			return str;
+		}
+	}
 }