diff options
Diffstat (limited to 'src/aac-enc-dabplus-zmq.c')
| -rw-r--r-- | src/aac-enc-dabplus-zmq.c | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/src/aac-enc-dabplus-zmq.c b/src/aac-enc-dabplus-zmq.c new file mode 100644 index 0000000..febbdd9 --- /dev/null +++ b/src/aac-enc-dabplus-zmq.c @@ -0,0 +1,502 @@ +/* ------------------------------------------------------------------ + * Copyright (C) 2011 Martin Storsjo + * Copyright (C) 2013,2014 Matthias P. Braendli + * Copyright (C) 2014 CSP Innovazione nelle ICT s.c.a r.l. + * http://rd.csp.it/ + * + * http://opendigitalradio.org + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program If not, see <http://www.gnu.org/licenses/>. + * ------------------------------------------------------------------- + */ + +#include <stdio.h> +#include <stdint.h> +#include <string.h> +#include <unistd.h> +#include <stdlib.h> +#include <getopt.h> +#include <zmq.h> +#include <assert.h> +#include "libAACenc/include/aacenc_lib.h" +#include "wavreader.h" + +#include <fec.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> + +#include "contrib/lib_crc.h" + +#define MIN(a,b) (((a)<(b))?(a):(b)) +#define MAX(a,b) (((a)>(b))?(a):(b)) + +void usage(const char* name) { + fprintf(stderr, "fdk-aac-dabplus HE-AACv2 encoder for DAB+\n\n"); + fprintf(stderr, "With ZeroMQ output for ODR-DabMux\n"); + fprintf(stderr, "and PAD (DLS and MOT Slideshow) by http://rd.csp.it\n"); + fprintf(stderr, "\n"); + fprintf(stderr, "http://opendigitalradio.org\n"); + fprintf(stderr, "\nUsage:\n"); + fprintf(stderr, "%s [OPTION...]\n", name); + fprintf(stderr, +" -b, --bitrate={ 8, 16, ..., 192 } Output bitrate in kbps. Must be 8 multiple.\n" +//" -d, --data=FILENAME Set data filename.\n" +//" -g, --fs-bug Turn on FS bug mitigation.\n" +" -i, --input=FILENAME Input filename (default: stdin).\n" +" -o, --output=URI Output zmq uri. (e.g. 'tcp://*:9000')\n" +" -a, --afterburner Turn on AAC encoder quality increaser.\n" +//" -m, --message Turn on AAC frame messages.\n" +" -p, --pad=BYTES Set PAD size in bytes.\n" +" -f, --format={ wav, raw } Set input file format (default: wav).\n" +" -c, --channels={ 1, 2 } Nb of input channels for raw input (default: 2).\n" +" -r, --rate={ 32000, 48000 } Sample rate for raw input (default: 48000).\n" +//" -t, --type=TYPE Set data type (dls|pad|packet|dg).\n" +//" -v, --verbose=LEVEL Set verbosity level.\n" +//" -V, --version Print version and exit.\n" +//" --mi=[ 0, ... ] Set AAC frame messages interval in milliseconds.\n" +//" --ma=[ 0, ... ] Set AAC frame messages attack time in milliseconds.\n" +//" -l, --lp Set frame size to 1024 instead of 960.\n" +"\n" +"Only the tcp:// zeromq transport has been tested until now.\n" + +); + +} + + +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 + +int main(int argc, char *argv[]) { + int subchannel_index = 8; //64kbps subchannel + int ch=0; + const char *infile = NULL; + const char *outuri = NULL; + FILE *in_fh; + void *wav; + int wav_format, bits_per_sample, sample_rate=48000, channels=2; + uint8_t* input_buf; + int16_t* convert_buf; + void *rs_handler = NULL; + int aot = AOT_DABPLUS_AAC_LC; + int afterburner = 0, raw_input=0; + HANDLE_AACENCODER handle; + CHANNEL_MODE mode; + AACENC_InfoStruct info = { 0 }; + + int pad_fd; + unsigned char pad_buf[128]; + int padlen; + + void *zmq_context = zmq_ctx_new(); + void *zmq_sock = NULL; + + const struct option longopts[] = { + {"bitrate", required_argument, 0, 'b'}, + {"input", required_argument, 0, 'i'}, + {"output", required_argument, 0, 'o'}, + {"format", required_argument, 0, 'f'}, + {"rate", required_argument, 0, 'r'}, + {"channels", required_argument, 0, 'c'}, + {"pad", required_argument, 0, 'p'}, + //{"lp", no_argument, 0, 'l'}, + {"afterburner", no_argument, 0, 'a'}, + {"help", no_argument, 0, 'h'}, + {0,0,0,0}, + }; + + if (argc == 1) { + usage(argv[0]); + return 0; + } + + int index; + while(ch != -1) { + ch = getopt_long(argc, argv, "tlhab:c:i:o:r:f:p:", longopts, &index); + switch (ch) { + case 'f': + if(strcmp(optarg, "raw")==0) { + raw_input = 1; + } else if(strcmp(optarg, "wav")!=0) + usage(argv[0]); + break; + case 'a': + afterburner = 1; + break; + case 'b': + subchannel_index = atoi(optarg) / 8; + break; + case 'c': + channels = atoi(optarg); + break; + case 'r': + sample_rate = atoi(optarg); + break; + case 'i': + infile = optarg; + break; + case 'o': + outuri = optarg; + break; + case 'p': + padlen = atoi(optarg); + break; + case '?': + case 'h': + usage(argv[0]); + return 1; + } + } + + if(subchannel_index < 1 || subchannel_index > 24) { + fprintf(stderr, "Bad subchannels number: %d, try other bitrate.\n", + subchannel_index); + return 1; + } + if(padlen != 0) { + int flags; + if (mkfifo("/tmp/pad.fifo", S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH) != 0) { + if (errno != EEXIST) { + fprintf(stderr, "Can't create pad file: %d!\n", errno); + return 1; + } + } + pad_fd = open("/tmp/pad.fifo", O_RDONLY | O_NONBLOCK); + if (pad_fd == -1) { + fprintf(stderr, "Can't open pad file!\n"); + return 1; + } + flags = fcntl(pad_fd, F_GETFL, 0); + if (fcntl(pad_fd, F_SETFL, flags | O_NONBLOCK)) { + fprintf(stderr, "Can't set non-blocking mode in pad file!\n"); + return 1; + } + } + + if(raw_input) { + if(infile && strcmp(infile, "-")) { + in_fh = fopen(infile, "rb"); + if(!in_fh) { + fprintf(stderr, "Can't open input file!\n"); + return 1; + } + } else { + in_fh = stdin; + } + } else { + wav = wav_read_open(infile); + if (!wav) { + fprintf(stderr, "Unable to open wav file %s\n", infile); + return 1; + } + if (!wav_get_header(wav, &wav_format, &channels, &sample_rate, &bits_per_sample, NULL)) { + fprintf(stderr, "Bad wav file %s\n", infile); + return 1; + } + if (wav_format != 1) { + fprintf(stderr, "Unsupported WAV format %d\n", wav_format); + return 1; + } + if (bits_per_sample != 16) { + fprintf(stderr, "Unsupported WAV sample depth %d\n", bits_per_sample); + return 1; + } + if (channels > 2) { + fprintf(stderr, "Unsupported WAV channels %d\n", channels); + return 1; + } + } + + if (outuri) { + zmq_sock = zmq_socket(zmq_context, ZMQ_PUB); + if (zmq_sock == NULL) { + fprintf(stderr, "Error occurred during zmq_socket: %s\n", zmq_strerror(errno)); + return 2; + } + if (zmq_connect(zmq_sock, outuri) != 0) { + fprintf(stderr, "Error occurred during zmq_connect: %s\n", zmq_strerror(errno)); + return 2; + } + } else { + fprintf(stderr, "Output URI not defined\n"); + return 1; + } + + + switch (channels) { + case 1: mode = MODE_1; break; + case 2: mode = MODE_2; break; + default: + fprintf(stderr, "Unsupported channels number %d\n", channels); + return 1; + } + + + if (aacEncOpen(&handle, 0x01|0x02|0x04, channels) != AACENC_OK) { + fprintf(stderr, "Unable to open encoder\n"); + return 1; + } + + + if(channels == 2 && subchannel_index <= 6) + aot = AOT_DABPLUS_PS; + else if((channels == 1 && subchannel_index <= 8) || subchannel_index <= 10) + aot = AOT_DABPLUS_SBR; + + fprintf(stderr, "Using %d subchannels. AAC type: %s%s%s. channels=%d, sample_rate=%d\n", + subchannel_index, + aot == AOT_DABPLUS_PS ? "HE-AAC v2" : "", + aot == AOT_DABPLUS_SBR ? "HE-AAC" : "", + aot == AOT_DABPLUS_AAC_LC ? "AAC-LC" : "", + channels, sample_rate); + + if (aacEncoder_SetParam(handle, AACENC_AOT, aot) != AACENC_OK) { + fprintf(stderr, "Unable to set the AOT\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_SAMPLERATE, sample_rate) != AACENC_OK) { + fprintf(stderr, "Unable to set the samplerate\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_CHANNELMODE, mode) != AACENC_OK) { + fprintf(stderr, "Unable to set the channel mode\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_CHANNELORDER, 1) != AACENC_OK) { + fprintf(stderr, "Unable to set the wav channel order\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_GRANULE_LENGTH, 960) != AACENC_OK) { + fprintf(stderr, "Unable to set the granule length\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_TRANSMUX, TT_DABPLUS) != AACENC_OK) { + fprintf(stderr, "Unable to set the RAW transmux\n"); + return 1; + } + + /*if (aacEncoder_SetParam(handle, AACENC_BITRATEMODE, 7 *AACENC_BR_MODE_SFR*) != AACENC_OK) { + fprintf(stderr, "Unable to set the bitrate mode\n"); + return 1; + }*/ + + + fprintf(stderr, "AAC bitrate set to: %d\n", subchannel_index*8000); + if (aacEncoder_SetParam(handle, AACENC_BITRATE, subchannel_index*8000) != AACENC_OK) { + fprintf(stderr, "Unable to set the bitrate\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_AFTERBURNER, afterburner) != AACENC_OK) { + fprintf(stderr, "Unable to set the afterburner mode\n"); + return 1; + } + if (aacEncoder_SetParam(handle, AACENC_ANCILLARY_BITRATE, 0) != AACENC_OK) { + fprintf(stderr, "Unable to set the ancillary bitrate\n"); + return 1; + } + if (aacEncEncode(handle, NULL, NULL, NULL, NULL) != AACENC_OK) { + fprintf(stderr, "Unable to initialize the encoder\n"); + return 1; + } + if (aacEncInfo(handle, &info) != AACENC_OK) { + fprintf(stderr, "Unable to get the encoder info\n"); + return 1; + } + + fprintf(stderr, "DAB+ Encoding: framelen=%d\n", info.frameLength); + + int input_size = channels*2*info.frameLength; + input_buf = (uint8_t*) malloc(input_size); + convert_buf = (int16_t*) malloc(input_size); + + /* symsize=8, gfpoly=0x11d, fcr=0, prim=1, nroots=10, pad=135 */ + rs_handler = init_rs_char(8, 0x11d, 0, 1, 10, 135); + if (rs_handler == NULL) { + perror("init_rs_char failed"); + return 0; + } + + int loops = 0; + int outbuf_size = subchannel_index*120; + uint8_t outbuf[20480]; + + if(outbuf_size % 5 != 0) { + fprintf(stderr, "(outbuf_size mod 5) = %d\n", outbuf_size % 5); + } + + fprintf(stderr, "outbuf_size: %d\n", outbuf_size); + //outbuf_size += (4 * subchannel_index * (8*8)/8) - outbuf_size/5; + fprintf(stderr, "outbuf_size: %d\n", outbuf_size); + + int frame=0; + int send_error_count = 0; + while (1) { + memset(outbuf, 0x00, outbuf_size); + + AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 }; + AACENC_InArgs in_args = { 0 }; + AACENC_OutArgs out_args = { 0 }; + int in_identifier[] = {IN_AUDIO_DATA, IN_ANCILLRY_DATA}; + int in_size[2], in_elem_size[2]; + int out_identifier = OUT_BITSTREAM_DATA; + int out_size, out_elem_size; + int pcmread=0, i, ret; + int send_error; + void *in_ptr[2], *out_ptr; + AACENC_ERROR err; + + // Read data from the PAD fifo + if (padlen != 0) { + ret = read(pad_fd, pad_buf, padlen); + } + else { + ret = 0; + } + + + if(ret < 0 && errno == EAGAIN) { + // If this condition passes, there is no data to be read + in_buf.numBufs = 1; // Samples; + } + else if(ret >= 0) { + // Otherwise, you're good to go and buffer should contain "count" bytes. + in_buf.numBufs = 2; // Samples + Data; + } + else { + // Some other error occurred during read. + fprintf(stderr, "Unable to read from PAD!\n"); + break; + } + + if(raw_input) { + if(fread(input_buf, input_size, 1, in_fh) == 1) { + pcmread = input_size; + } else { + fprintf(stderr, "Unable to read from input!\n"); + break; + } + } else { + pcmread = wav_read_data(wav, input_buf, input_size); + } + + for (i = 0; i < pcmread/2; i++) { + const uint8_t* in = &input_buf[2*i]; + convert_buf[i] = in[0] | (in[1] << 8); + } + + if (pcmread <= 0) { + in_args.numInSamples = -1; + } else { + in_ptr[0] = convert_buf; + in_ptr[1] = pad_buf; + in_size[0] = pcmread; + in_size[1] = padlen; + + in_elem_size[0] = 2; + in_elem_size[1] = sizeof(UCHAR); + + in_args.numInSamples = pcmread/2; + in_args.numAncBytes = padlen; + + //in_buf.numBufs = 2; // Samples + Data + + in_buf.bufs = (void**)&in_ptr; + in_buf.bufferIdentifiers = in_identifier; + in_buf.bufSizes = in_size; + in_buf.bufElSizes = in_elem_size; + + } + out_ptr = outbuf; + out_size = sizeof(outbuf); + out_elem_size = 1; + out_buf.numBufs = 1; + out_buf.bufs = &out_ptr; + out_buf.bufferIdentifiers = &out_identifier; + out_buf.bufSizes = &out_size; + out_buf.bufElSizes = &out_elem_size; + + if ((err = aacEncEncode(handle, &in_buf, &out_buf, &in_args, &out_args)) != AACENC_OK) { + if (err == AACENC_ENCODE_EOF) + break; + fprintf(stderr, "Encoding failed\n"); + return 1; + } + if (out_args.numOutBytes == 0) + continue; +#if 0 + unsigned char au_start[6]; + unsigned char* sfbuf = outbuf; + au_start[0] = 6; + au_start[1] = (*(sfbuf + 3) << 4) + ((*(sfbuf + 4)) >> 4); + au_start[2] = ((*(sfbuf + 4) & 0x0f) << 8) + *(sfbuf + 5); + fprintf (stderr, "au_start[0] = %d\n", au_start[0]); + fprintf (stderr, "au_start[1] = %d\n", au_start[1]); + fprintf (stderr, "au_start[2] = %d\n", au_start[2]); +#endif + + int row, col; + unsigned char buf_to_rs_enc[110]; + unsigned char rs_enc[10]; + for(row=0; row < subchannel_index; row++) { + for(col=0;col < 110; col++) { + buf_to_rs_enc[col] = outbuf[subchannel_index * col + row]; + } + + encode_rs_char(rs_handler, buf_to_rs_enc, rs_enc); + + for(col=110; col<120; col++) { + outbuf[subchannel_index * col + row] = rs_enc[col-110]; + assert(subchannel_index * col + row < outbuf_size); + } + } + + send_error = zmq_send(zmq_sock, outbuf, outbuf_size, ZMQ_DONTWAIT); + if (send_error < 0) { + fprintf(stderr, "ZeroMQ send failed! %s\n", zmq_strerror(errno)); + send_error_count ++; + } + + if (send_error_count > 10) + { + fprintf(stderr, "ZeroMQ send failed ten times, aborting!\n"); + break; + } + //fwrite(outbuf, 1, /*out_args.numOutBytes*/ outbuf_size, out_fh); + //fprintf(stderr, "Written %d/%d bytes!\n", out_args.numOutBytes + row*10, outbuf_size); + if(out_args.numOutBytes + row*10 == outbuf_size) + fprintf(stderr, "."); + +// if(frame > 10) +// break; + frame++; + } + free(input_buf); + free(convert_buf); + if(raw_input) { + fclose(in_fh); + } else { + wav_read_close(wav); + } + zmq_close(zmq_sock); + free_rs_char(rs_handler); + + aacEncClose(&handle); + + zmq_ctx_term(zmq_context); + return 0; +} + |