VLCKit/Sources/VLCStreamOutput.m

//
//  VLCStreamOutput.m
//  VLCKit
//
//  Created by Pierre d'Herbemont on 1/12/08.
//  Copyright 2008 __MyCompanyName__. All rights reserved.
//

#import "VLCStreamOutput.h"
#import "VLCLibVLCBridging.h"


@implementation VLCStreamOutput
- (id)initWithOptionDictionary:(NSDictionary *)dictionary
{
    if( self = [super init] )
    {
        options = [NSMutableDictionary dictionaryWithDictionary:dictionary];
    }
    return self;
}
- (NSString *)description
{
    return [self representedLibVLCOptions];
}
+ (id)streamOutputWithOptionDictionary:(NSDictionary *)dictionary
{
    return [[[self alloc] initWithOptionDictionary:dictionary] autorelease];
}
+ (id)rtpBroadcastStreamOutputWithSAPAnnounce:(NSString *)announceName
{
    return [self streamOutputWithOptionDictionary:[NSDictionary dictionaryWithObjectsAndKeys:
                                            [NSDictionary dictionaryWithObjectsAndKeys:
                                                @"ts", @"muxer",
                                                @"file", @"access",
                                                @"sap", @"sdp",
                                                [announceName copy], @"name",
                                                @"239.255.1.1", @"destination", nil
                                            ], @"rtpOptions",
                                            nil
                                            ]
                                        ];
}

+ (id)rtpBroadcastStreamOutput
{
    return [self rtpBroadcastStreamOutputWithSAPAnnounce:@"Helloworld!"];
}

+ (id)ipodStreamOutputWithFilePath:(NSString *)filePath
{
    return [self streamOutputWithOptionDictionary:[NSDictionary dictionaryWithObjectsAndKeys:
                                            [NSDictionary dictionaryWithObjectsAndKeys:
                                                @"x264", @"videoCodec",
                                                @"768",  @"videoBitrate",
                                                @"mp4a", @"audioCodec",
                                                @"128", @"audioBitrate",
                                                @"2",   @"channels",
                                                @"320", @"width",
                                                @"240", @"canvasHeight",
                                                @"Yes", @"audio-sync",
                                                nil
                                            ], @"transcodingOptions",
                                            [NSDictionary dictionaryWithObjectsAndKeys:
                                                @"mp4", @"muxer",
                                                @"file", @"access",
                                                [filePath copy], @"destination", nil
                                            ], @"outputOptions",
                                            nil
                                            ]
                                        ];
}
@end

@implementation VLCStreamOutput (LibVLCBridge)
- (NSString *)representedLibVLCOptions
{
    NSString * representedOptions;
    NSMutableArray * subOptions = [NSMutableArray array];
    NSMutableArray * optionsAsArray = [NSMutableArray array];
    NSDictionary * transcodingOptions = [options objectForKey:@"transcodingOptions"];
    if( transcodingOptions )
    {
        NSString * videoCodec = [transcodingOptions objectForKey:@"videoCodec"];
        NSString * audioCodec = [transcodingOptions objectForKey:@"audioCodec"];
        NSString * videoBitrate = [transcodingOptions objectForKey:@"videoBitrate"];
        NSString * audioBitrate = [transcodingOptions objectForKey:@"audioBitrate"];
        NSString * channels = [transcodingOptions objectForKey:@"channels"];
        NSString * height = [transcodingOptions objectForKey:@"height"];
        NSString * canvasHeight = [transcodingOptions objectForKey:@"canvasHeight"];
        NSString * width = [transcodingOptions objectForKey:@"width"];
        NSString * audioSync = [transcodingOptions objectForKey:@"audioSync"];
        if( videoCodec )   [subOptions addObject:[NSString stringWithFormat:@"vcodec=%@", videoCodec]];
        if( videoBitrate ) [subOptions addObject:[NSString stringWithFormat:@"vb=%@", videoBitrate]];
        if( width ) [subOptions addObject:[NSString stringWithFormat:@"width=%@", width]];
        if( height ) [subOptions addObject:[NSString stringWithFormat:@"height=%@", height]];
        if( canvasHeight ) [subOptions addObject:[NSString stringWithFormat:@"canvas-height=%@", canvasHeight]];
        if( audioCodec )   [subOptions addObject:[NSString stringWithFormat:@"acodec=%@", audioCodec]];
        if( audioBitrate ) [subOptions addObject:[NSString stringWithFormat:@"ab=%@", audioBitrate]];
        if( channels ) [subOptions addObject:[NSString stringWithFormat:@"channels=%@", channels]];
        if( audioSync ) [subOptions addObject:[NSString stringWithFormat:@"audioSync", width]];
        [optionsAsArray addObject: [NSString stringWithFormat:@"transcode{%@}", [subOptions componentsJoinedByString:@","]]];
        [subOptions removeAllObjects];
    }
    
    NSDictionary * outputOptions = [options objectForKey:@"outputOptions"];
    if( outputOptions )
    {
        NSString * muxer = [outputOptions objectForKey:@"muxer"];
        NSString * destination = [outputOptions objectForKey:@"destination"];
        NSString * url = [outputOptions objectForKey:@"url"];
        NSString * access = [outputOptions objectForKey:@"access"];
        if( muxer )       [subOptions addObject:[NSString stringWithFormat:@"muxer=%@", muxer]];
        if( destination ) [subOptions addObject:[NSString stringWithFormat:@"dst=\"%@\"", [destination stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""]]];
        if( url ) [subOptions addObject:[NSString stringWithFormat:@"url=\"%@\"", [url stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""]]];
        if( access )      [subOptions addObject:[NSString stringWithFormat:@"access=%@", access]];
        [optionsAsArray addObject:[NSString stringWithFormat:@"std{%@}", [subOptions componentsJoinedByString:@","]]];
        [subOptions removeAllObjects];
    }

    NSDictionary * rtpOptions = [options objectForKey:@"rtpOptions"];
    if( rtpOptions )
    {
        NSString * muxer = [rtpOptions objectForKey:@"muxer"];
        NSString * destination = [rtpOptions objectForKey:@"destination"];
        NSString * sdp = [rtpOptions objectForKey:@"sdp"];
        NSString * name = [rtpOptions objectForKey:@"name"];
        if( muxer )       [subOptions addObject:[NSString stringWithFormat:@"muxer=%@", muxer]];
        if( destination ) [subOptions addObject:[NSString stringWithFormat:@"dst=%@", destination]];
        if( sdp )      [subOptions addObject:[NSString stringWithFormat:@"sdp=%@", sdp]];
        if( name )      [subOptions addObject:[NSString stringWithFormat:@"name=\"%@\"", name]];
        [optionsAsArray addObject:[NSString stringWithFormat:@"rtp{%@}", [subOptions componentsJoinedByString:@","]]];
        [subOptions removeAllObjects];
    }
    representedOptions = [optionsAsArray componentsJoinedByString:@":"];
    return representedOptions;
}
@end