diff options
| author | jhurst <jhurst@cinecert.com> | 2006-04-05 23:03:55 +0000 |
|---|---|---|
| committer | jhurst <> | 2006-04-05 23:03:55 +0000 |
| commit | bfedf725dac9d13f3a02fe69f45c302ab29d2b1e (patch) | |
| tree | 4a746f759dcb62ebeb6309373e7579d6048f4af6 /src/blackwave.cpp | |
| parent | fdf31e0105bf8272a6b7fa9c4039941dff37a271 (diff) | |
ginormo merge-back with Kumu, SMPTE MIC key and MPEG parser fix
Diffstat (limited to 'src/blackwave.cpp')
| -rw-r--r-- | src/blackwave.cpp | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/blackwave.cpp b/src/blackwave.cpp new file mode 100644 index 0000000..c84774f --- /dev/null +++ b/src/blackwave.cpp @@ -0,0 +1,245 @@ +/* +Copyright (c) 2005, John Hurst +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/*! \file wavsplit.cpp + \version $Id$ + \brief Black WAV file generator +*/ + +#include "Wav.h" +#include <assert.h> + +using namespace ASDCP; + +//------------------------------------------------------------------------------------------ +// +// command line option parser class + +static const char* PACKAGE = "wavsplit"; // program name for messages + +// Macros used to test command option data state. + +// Increment the iterator, test for an additional non-option command line argument. +// Causes the caller to return if there are no remaining arguments or if the next +// argument begins with '-'. +#define TEST_EXTRA_ARG(i,c) if ( ++i >= argc || argv[(i)][0] == '-' ) \ + { \ + fprintf(stderr, "Argument not found for option %c.\n", (c)); \ + return; \ + } +// +void +banner(FILE* stream = stderr) +{ + fprintf(stream, "\n\ +%s (asdcplib %s)\n\n\ +Copyright (c) 2005-2006 John Hurst\n\n\ +wavesplit is part of asdcplib.\n\ +asdcplib may be copied only under the terms of the license found at\n\ +the top of every file in the asdcplib distribution kit.\n\n\ +Specify the -h (help) option for further information about %s\n\n", + PACKAGE, ASDCP::Version(), PACKAGE); +} + +// +void +usage(FILE* stream = stderr) +{ + fprintf(stream, "\ +USAGE: %s [-v|-h[-d]] <filename>\n\ +\n\ + -V - Show version\n\ + -h - Show help\n\ + -d <duration> - Number of 2k-sample frames to process, default 1440\n\ +\n\ +Other Options:\n\ + -v - Verbose, show extra detail during run\n\ +\n\ + NOTES: o There is no option grouping, all options must be distinct arguments.\n\ + o All option arguments must be separated from the option by whitespace.\n\ +\n", PACKAGE); +} + +// +// +class CommandOptions +{ + CommandOptions(); + +public: + bool error_flag; // true if the given options are in error or not complete + bool verbose_flag; // true if the verbose option was selected + bool version_flag; // true if the version display option was selected + bool help_flag; // true if the help display option was selected + ui32_t duration; // number of frames to be processed + const char* filename; // filename prefix for files written by the extract mode + + CommandOptions(int argc, const char** argv) : + error_flag(true), verbose_flag(false), version_flag(false), help_flag(false), + duration(1440), filename(0) + { + for ( int i = 1; i < argc; i++ ) + { + if ( argv[i][0] == '-' && isalpha(argv[i][1]) && argv[i][2] == 0 ) + { + switch ( argv[i][1] ) + { + case 'V': version_flag = true; break; + case 'h': help_flag = true; break; + case 'v': verbose_flag = true; break; + + case 'd': + TEST_EXTRA_ARG(i, 'd'); + duration = atoi(argv[i]); // TODO: test for negative value, should use strtol() + break; + + default: + fprintf(stderr, "Unrecognized option: %c\n", argv[i][1]); + return; + } + } + else + { + if ( filename ) + { + fprintf(stderr, "Unexpected extra filename.\n"); + return; + } + + filename = argv[i]; + } + } + + if ( filename == 0 ) + { + fputs("Output filename required.\n", stderr); + return; + } + + error_flag = false; + } +}; + + +// +// +Result_t +make_black_wav_file(CommandOptions& Options) +{ + PCM::FrameBuffer FrameBuffer; + PCM::AudioDescriptor ADesc; + + ADesc.SampleRate = Rational(24,1); + ADesc.AudioSamplingRate = ASDCP::SampleRate_48k; + ADesc.Locked = 0; + ADesc.ChannelCount = 1; + ADesc.QuantizationBits = 24; + ADesc.BlockAlign = 18; + ADesc.AvgBps = 86400; + ADesc.LinkedTrackID = 1; + ADesc.ContainerDuration = Options.duration; + + // fill the frame buffer with a frame (2000 samples) of black + FrameBuffer.Capacity(PCM::CalcFrameBufferSize(ADesc)); + memset(FrameBuffer.Data(), 0, FrameBuffer.Capacity()); + FrameBuffer.Size(FrameBuffer.Capacity()); + + if ( 1 ) // Options.verbose_flag ) + { + fprintf(stderr, "48Khz PCM Audio, %s fps (%lu spf)\n", "24", + PCM::CalcSamplesPerFrame(ADesc)); + fputs("AudioDescriptor:\n", stderr); + PCM::AudioDescriptorDump(ADesc); + } + + // set up output file + Kumu::FileWriter OutFile; + Result_t result = OutFile.OpenWrite(Options.filename); + + if ( ASDCP_SUCCESS(result) ) + { + Wav::SimpleWaveHeader WavHeader(ADesc); + result = WavHeader.WriteToFile(OutFile); + } + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t write_count = 0; + ui32_t duration = 0; + + while ( ASDCP_SUCCESS(result) && (duration++ < Options.duration) ) + { + result = OutFile.Write(FrameBuffer.Data(), FrameBuffer.Size(), &write_count); + } + + if ( result == RESULT_ENDOFFILE ) + result = RESULT_OK; + } + + return RESULT_OK; +} + + +// +int +main(int argc, const char** argv) +{ + Result_t result = RESULT_OK; + CommandOptions Options(argc, argv); + + if ( Options.help_flag ) + { + usage(); + return 0; + } + + if ( Options.error_flag ) + return 3; + + if ( Options.version_flag ) + banner(); + + else + result = make_black_wav_file(Options); + + if ( result != RESULT_OK ) + { + fputs("Program stopped on error.\n", stderr); + + if ( result != RESULT_FAIL ) + { + fputs(result, stderr); + fputc('\n', stderr); + } + + return 1; + } + + return 0; +} + + +// |
