Fix build

Author: Isaac

submodules/MediaPlayer/Sources/FFMpegMediaFrameSourceContextHelpers.swift

@@ -92,7 +92,7 @@ public final class FFMpegMediaFrameSourceContextHelpers {
     }
 
     static func createFormatDescriptionFromAV1CodecData(_ formatId: UInt32, _ width: Int32, _ height: Int32, _ extradata: Data, frameData: Data) -> CMFormatDescription? {
-        return createAV1FormatDescription(frameData)
+        return nil
 
         /*let par = NSMutableDictionary()
         par.setObject(1 as NSNumber, forKey: "HorizontalSpacing" as NSString)
@@ -120,206 +120,3 @@ public final class FFMpegMediaFrameSourceContextHelpers {
         return formatDescription*/
     }
 }
-
-private func getSequenceHeaderOBU(data: Data) -> (Data, Data)? {
-    let originalData = data
-    return data.withUnsafeBytes { buffer -> (Data, Data)? in
-        let data = buffer.baseAddress!.assumingMemoryBound(to: UInt8.self)
-        
-        var index = 0
-        while true {
-            if index >= buffer.count {
-                return nil
-            }
-
-            let startIndex = index
-            let value = data[index]
-            index += 1
-            if (value >> 7) != 0 {
-                return nil
-            }
-            let headerType = value >> 3
-            let hasPayloadSize = value & 0x02
-            if hasPayloadSize == 0 {
-                return nil
-            }
-
-            let hasExtension = value & 0x04
-            if hasExtension != 0 {
-                index += 1
-            }
-
-            let payloadSize = readULEBSize(data: data, dataSize: buffer.count, index: &index)
-            if index + payloadSize >= buffer.count {
-                return nil
-            }
-
-            if headerType == 1 {
-                let fullObu = originalData.subdata(in: startIndex ..< (startIndex + payloadSize + index - startIndex))
-                let obuData = originalData.subdata(in: index ..< (index + payloadSize))
-                return (fullObu, obuData)
-            }
-
-            index += payloadSize
-        }
-        
-        return nil
-    }
-}
-
-private func readULEBSize(data: UnsafePointer<UInt8>, dataSize: Int, index: inout Int) -> Int {
-    var value = 0
-    for cptr in 0 ..< 8 {
-        if index >= dataSize {
-            return 0
-        }
-
-        let dataByte = data[index]
-        index += 1
-        let decodedByte = dataByte & 0x7f
-        value |= Int(decodedByte << (7 * cptr))
-        if value >= Int(Int32.max) {
-            return 0
-        }
-        if (dataByte & 0x80) == 0 {
-            break;
-        }
-    }
-    return value
-}
-
-private struct ParsedSequenceHeaderParameters {
-    var height: Int32 = 0
-    var width: Int32 = 0
-
-    var profile: UInt8 = 0
-    var level: UInt8 = 0
-    
-    var high_bitdepth: UInt8 = 0
-    var twelve_bit: UInt8 = 0
-    var chroma_type: UInt8 = 0
-}
-
-private func parseSequenceHeaderOBU(data: Data) -> ParsedSequenceHeaderParameters? {
-    var parameters = ParsedSequenceHeaderParameters()
-
-    let bitReader = LsbBitReader(data: data)
-    var value: UInt32 = 0
-    
-    // Read three bits, profile
-    if bitReader.bitsLeft < 3 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 3)
-    bitReader.advance(by: 3)
-    parameters.profile = UInt8(bitPattern: Int8(clamping: value))
-
-    // Read one bit, still picture
-    if bitReader.bitsLeft < 1 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 1)
-    bitReader.advance(by: 1)
-
-    // Read one bit, hdr still picture
-    if bitReader.bitsLeft < 1 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 1)
-    bitReader.advance(by: 1)
-    // We only support hdr still picture = 0 for now.
-    if value != 0 {
-        return nil
-    }
-
-    parameters.high_bitdepth = 0
-    parameters.twelve_bit = 0
-    parameters.chroma_type = 3
-
-    // Read one bit, timing info
-    if bitReader.bitsLeft < 1 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 1)
-    bitReader.advance(by: 1)
-    // We only support no timing info for now.
-    if value != 0 {
-        return nil
-    }
-
-    // Read one bit, display mode
-    if bitReader.bitsLeft < 1 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 1)
-    bitReader.advance(by: 1)
-
-    // Read 5 bits, operating_points_cnt_minus_1
-    if bitReader.bitsLeft < 5 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 5)
-    bitReader.advance(by: 5)
-    // We only support operating_points_cnt_minus_1 = 0 for now.
-    if value != 0 {
-        return nil
-    }
-
-    // Read 12 bits, operating_point_idc
-    if bitReader.bitsLeft < 12 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 12)
-    bitReader.advance(by: 12)
-
-    // Read 5 bits, level
-    if bitReader.bitsLeft < 5 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 5)
-    bitReader.advance(by: 5)
-    parameters.level = UInt8(value)
-
-    // If level >= 4.0, read one bit
-    if parameters.level > 7 {
-        if bitReader.bitsLeft < 1 {
-            return nil
-        }
-        value = bitReader.uint32(fromBits: 1)
-        bitReader.advance(by: 1)
-    }
-
-    // Read width num bits
-    if bitReader.bitsLeft < 4 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 4)
-    bitReader.advance(by: 4)
-    let widthNumBits = value + 1
-
-    // Read height num bits
-    if bitReader.bitsLeft < 4 {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: 4)
-    bitReader.advance(by: 4)
-    let heightNumBits = value + 1
-
-    // Read width according with num bits
-    if bitReader.bitsLeft < Int(widthNumBits) {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: Int(widthNumBits))
-    bitReader.advance(by: Int(widthNumBits))
-    parameters.width = Int32(value + 1)
-
-    // Read height according with num bits
-    if bitReader.bitsLeft < Int(heightNumBits) {
-        return nil
-    }
-    value = bitReader.uint32(fromBits: Int(heightNumBits))
-    bitReader.advance(by: Int(heightNumBits))
-    parameters.height = Int32(value + 1)
-
-    return parameters
-}