+ // The Writer class will forward the last block of ciphertext
+ // to the encryption context for use as the IV for the next
+ // frame. If you want to use non-sequitur IV values, un-comment
+ // the following line of code.
+ // if ( ASDCP_SUCCESS(result) && Options.key_flag )
+ // Context->SetIVec(RNG.FillRandom(IV_buf, CBC_BLOCK_SIZE));
+ }
+ }
+
+ if ( result == RESULT_ENDOFFILE )
+ result = RESULT_OK;
+ }
+
+ if ( ASDCP_SUCCESS(result) && ! Options.no_write_flag )
+ result = Writer.Finalize();
+
+ return result;
+}
+
+// Read one or more plaintext JPEG 2000 codestreams from a plaintext ASDCP file
+// Read one or more plaintext JPEG 2000 codestreams from a ciphertext ASDCP file
+// Read one or more ciphertext JPEG 2000 codestreams from a ciphertext ASDCP file
+//
+Result_t
+read_JP2K_file(CommandOptions& Options)
+{
+ AESDecContext* Context = 0;
+ HMACContext* HMAC = 0;
+ JP2K::MXFReader Reader;
+ JP2K::FrameBuffer FrameBuffer(Options.fb_size);
+ ui32_t frame_count = 0;
+
+ Result_t result = Reader.OpenRead(Options.filenames[0]);
+
+ if ( ASDCP_SUCCESS(result) )
+ {
+ JP2K::PictureDescriptor PDesc;
+ Reader.FillPictureDescriptor(PDesc);
+
+ frame_count = PDesc.ContainerDuration;
+
+ if ( Options.verbose_flag )
+ {
+ fprintf(stderr, "Frame Buffer size: %u\n", Options.fb_size);
+ JP2K::PictureDescriptorDump(PDesc);
+ }
+ }
+
+ if ( ASDCP_SUCCESS(result) && Options.key_flag )
+ {
+ Context = new AESDecContext;
+ result = Context->InitKey(Options.key_value);
+
+ if ( ASDCP_SUCCESS(result) && Options.read_hmac )
+ {
+ WriterInfo Info;
+ Reader.FillWriterInfo(Info);
+
+ if ( Info.UsesHMAC )
+ {
+ HMAC = new HMACContext;
+ result = HMAC->InitKey(Options.key_value, Info.LabelSetType);
+ }
+ else
+ {
+ fputs("File does not contain HMAC values, ignoring -m option.\n", stderr);
+ }
+ }
+ }
+
+ ui32_t last_frame = Options.start_frame + ( Options.duration ? Options.duration : frame_count);
+ if ( last_frame > frame_count )
+ last_frame = frame_count;
+
+ char name_format[64];
+ snprintf(name_format, 64, "%%s%%0%du.j2c", Options.number_width);
+
+ for ( ui32_t i = Options.start_frame; ASDCP_SUCCESS(result) && i < last_frame; i++ )
+ {
+ result = Reader.ReadFrame(i, FrameBuffer, Context, HMAC);
+
+ if ( ASDCP_SUCCESS(result) )
+ {
+ Kumu::FileWriter OutFile;
+ char filename[256];
+ ui32_t write_count;
+ snprintf(filename, 256, name_format, Options.file_root, i);
+ result = OutFile.OpenWrite(filename);
+
+ if ( ASDCP_SUCCESS(result) )
+ result = OutFile.Write(FrameBuffer.Data(), FrameBuffer.Size(), &write_count);
+
+ if ( Options.verbose_flag )
+ FrameBuffer.Dump(stderr, Options.fb_dump_size);
+ }
+ }
+
+ return result;
+}
+
+//------------------------------------------------------------------------------------------
+// PCM essence
+
+
+// Write one or more plaintext PCM audio streams to a plaintext ASDCP file
+// Write one or more plaintext PCM audio streams to a ciphertext ASDCP file
+//
+Result_t
+write_PCM_file(CommandOptions& Options)
+{
+ AESEncContext* Context = 0;
+ HMACContext* HMAC = 0;
+ PCMParserList Parser;
+ PCM::MXFWriter Writer;
+ PCM::FrameBuffer FrameBuffer;
+ PCM::AudioDescriptor ADesc;
+ Rational PictureRate = Options.PictureRate();
+ byte_t IV_buf[CBC_BLOCK_SIZE];
+ Kumu::FortunaRNG RNG;
+
+ // set up essence parser
+ Result_t result = Parser.OpenRead(Options.file_count, Options.filenames, PictureRate);
+
+ // set up MXF writer
+ if ( ASDCP_SUCCESS(result) )
+ {
+ Parser.FillAudioDescriptor(ADesc);
+
+ ADesc.EditRate = PictureRate;
+ FrameBuffer.Capacity(PCM::CalcFrameBufferSize(ADesc));
+ ADesc.ChannelFormat = Options.channel_fmt;
+
+ if ( Options.use_smpte_labels && ADesc.ChannelFormat == PCM::CF_NONE)
+ {
+ fprintf(stderr, "ATTENTION! Writing SMPTE audio without ChannelAssignment property (see option -l)\n");
+ }
+
+ if ( Options.verbose_flag )
+ {
+ fprintf(stderr, "%.1fkHz PCM Audio, %s fps (%u spf)\n",
+ ADesc.AudioSamplingRate.Quotient() / 1000.0,
+ Options.szPictureRate(),
+ PCM::CalcSamplesPerFrame(ADesc));
+ fputs("AudioDescriptor:\n", stderr);
+ PCM::AudioDescriptorDump(ADesc);
+ }
+ }
+
+ if ( ASDCP_SUCCESS(result) && ! Options.no_write_flag )
+ {
+ WriterInfo Info = s_MyInfo; // fill in your favorite identifiers here
+ if ( Options.asset_id_flag )
+ memcpy(Info.AssetUUID, Options.asset_id_value, UUIDlen);
+ else
+ Kumu::GenRandomUUID(Info.AssetUUID);
+
+ if ( Options.use_smpte_labels )
+ {
+ Info.LabelSetType = LS_MXF_SMPTE;
+ fprintf(stderr, "ATTENTION! Writing SMPTE Universal Labels\n");
+ }
+
+ // configure encryption
+ if( Options.key_flag )
+ {
+ Kumu::GenRandomUUID(Info.ContextID);
+ Info.EncryptedEssence = true;
+
+ if ( Options.key_id_flag )
+ memcpy(Info.CryptographicKeyID, Options.key_id_value, UUIDlen);
+ else
+ RNG.FillRandom(Info.CryptographicKeyID, UUIDlen);
+
+ Context = new AESEncContext;
+ result = Context->InitKey(Options.key_value);
+
+ if ( ASDCP_SUCCESS(result) )
+ result = Context->SetIVec(RNG.FillRandom(IV_buf, CBC_BLOCK_SIZE));
+
+ if ( ASDCP_SUCCESS(result) && Options.write_hmac )
+ {
+ Info.UsesHMAC = true;
+ HMAC = new HMACContext;
+ result = HMAC->InitKey(Options.key_value, Info.LabelSetType);
+ }
+ }
+
+ if ( ASDCP_SUCCESS(result) )
+ result = Writer.OpenWrite(Options.out_file, Info, ADesc);
+ }
+
+ if ( ASDCP_SUCCESS(result) )
+ {
+ result = Parser.Reset();
+ ui32_t duration = 0;
+
+ while ( ASDCP_SUCCESS(result) && duration++ < Options.duration )
+ {
+ result = Parser.ReadFrame(FrameBuffer);
+
+ if ( ASDCP_SUCCESS(result) )
+ {
+ if ( FrameBuffer.Size() != FrameBuffer.Capacity() )
+ {
+ fprintf(stderr, "WARNING: Last frame read was short, PCM input is possibly not frame aligned.\n");
+ fprintf(stderr, "Expecting %u bytes, got %u.\n", FrameBuffer.Capacity(), FrameBuffer.Size());
+ result = RESULT_ENDOFFILE;
+ continue;
+ }
+
+ if ( Options.verbose_flag )
+ FrameBuffer.Dump(stderr, Options.fb_dump_size);
+
+ if ( ! Options.no_write_flag )
+ {
+ result = Writer.WriteFrame(FrameBuffer, Context, HMAC);