com.spikeify.ffmpeg.info.Codec Maven / Gradle / Ivy

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package com.spikeify.ffmpeg.info;

import com.google.common.base.Objects;
import com.google.common.base.Preconditions;

/**
 * Information about supported Codecs
 * @author bramp
 *
 */
public class Codec {

    static enum Type {
        VIDEO,
        AUDIO,
        SUBTITLE
    };

    final String name;
	final String longName;

    // All the flags
    /**
     * Can I decode with this codec
     */
    final boolean canDecode;

    /**
     * Can I encode with this codec
     */
    final boolean canEncode;

    /**
     * What type of codec is this
     */
    final Type type;

	public Codec(String name, String longName, String flags) {
		this.name      = Preconditions.checkNotNull(name).trim();
		this.longName  = Preconditions.checkNotNull(longName).trim();

        /**
         D..... = Decoding supported
         .E.... = Encoding supported
         ..V... = Video codec
         ..A... = Audio codec
         ..S... = Subtitle codec
         ...S.. = Supports draw_horiz_band
         ....D. = Supports direct rendering method 1
         .....T = Supports weird frame truncation
         */

        Preconditions.checkNotNull(flags);
        Preconditions.checkArgument(flags.length() == 6, "Format flags is invalid '{}'", flags);
        this.canDecode = flags.charAt(0) == 'D';
        this.canEncode = flags.charAt(1) == 'E';

        switch (flags.charAt(2)) {
            case 'V': this.type = Type.VIDEO;
                break;
            case 'A': this.type = Type.AUDIO;
                break;
            case 'S': this.type = Type.SUBTITLE;
                break;
            default:
                throw new IllegalArgumentException("Invalid codec type '" + flags.charAt(3) + "'");
        }

        // TODO There are more flags to parse
	}
	
	@Override
	public String toString() {
		return name + " " + longName;
	}
	
	@Override
	public boolean equals(Object obj) {
		if (!(obj instanceof Codec)) {
			return false;
		}

		Codec that = (Codec) obj;
		return Objects.equal(this.name, that.name) &&
                Objects.equal(this.longName, that.longName) &&
                (this.type == that.type) &&
                (this.canEncode == that.canEncode) &&
                (this.canDecode == that.canDecode);
	}

    public String getName() {
        return name;
    }

    public String getLongName() {
        return longName;
    }

    public boolean getCanDecode() {
        return canDecode;
    }

    public boolean getCanEncode() {
        return canEncode;
    }

    public Type getType() {
        return type;
    }

}