1/* test_libFLAC - Unit tester for libFLAC 2 * Copyright (C) 2002,2003,2004,2005,2006,2007 Josh Coalson 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 2 7 * of the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 */ 18 19#if HAVE_CONFIG_H 20# include <config.h> 21#endif 22 23#include "FLAC/assert.h" 24#include "FLAC/stream_encoder.h" 25#include "test_libs_common/file_utils_flac.h" 26#include <stdio.h> 27#include <stdlib.h> 28#include <sys/stat.h> /* for stat() */ 29 30#ifdef min 31#undef min 32#endif 33#define min(a,b) ((a)<(b)?(a):(b)) 34 35const long file_utils__ogg_serial_number = 12345; 36 37#ifdef FLAC__VALGRIND_TESTING 38static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream) 39{ 40 size_t ret = fwrite(ptr, size, nmemb, stream); 41 if(!ferror(stream)) 42 fflush(stream); 43 return ret; 44} 45#else 46#define local__fwrite fwrite 47#endif 48 49typedef struct { 50 FILE *file; 51} encoder_client_struct; 52 53static FLAC__StreamEncoderWriteStatus encoder_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data) 54{ 55 encoder_client_struct *ecd = (encoder_client_struct*)client_data; 56 57 (void)encoder, (void)samples, (void)current_frame; 58 59 if(local__fwrite(buffer, 1, bytes, ecd->file) != bytes) 60 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR; 61 else 62 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK; 63} 64 65static void encoder_metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data) 66{ 67 (void)encoder, (void)metadata, (void)client_data; 68} 69 70FLAC__bool file_utils__generate_flacfile(FLAC__bool is_ogg, const char *output_filename, off_t *output_filesize, unsigned length, const FLAC__StreamMetadata *streaminfo, FLAC__StreamMetadata **metadata, unsigned num_metadata) 71{ 72 FLAC__int32 samples[1024]; 73 FLAC__StreamEncoder *encoder; 74 FLAC__StreamEncoderInitStatus init_status; 75 encoder_client_struct encoder_client_data; 76 unsigned i, n; 77 78 FLAC__ASSERT(0 != output_filename); 79 FLAC__ASSERT(0 != streaminfo); 80 FLAC__ASSERT(streaminfo->type == FLAC__METADATA_TYPE_STREAMINFO); 81 FLAC__ASSERT((streaminfo->is_last && num_metadata == 0) || (!streaminfo->is_last && num_metadata > 0)); 82 83 if(0 == (encoder_client_data.file = fopen(output_filename, "wb"))) 84 return false; 85 86 encoder = FLAC__stream_encoder_new(); 87 if(0 == encoder) { 88 fclose(encoder_client_data.file); 89 return false; 90 } 91 92 FLAC__stream_encoder_set_ogg_serial_number(encoder, file_utils__ogg_serial_number); 93 FLAC__stream_encoder_set_verify(encoder, true); 94 FLAC__stream_encoder_set_streamable_subset(encoder, true); 95 FLAC__stream_encoder_set_do_mid_side_stereo(encoder, false); 96 FLAC__stream_encoder_set_loose_mid_side_stereo(encoder, false); 97 FLAC__stream_encoder_set_channels(encoder, streaminfo->data.stream_info.channels); 98 FLAC__stream_encoder_set_bits_per_sample(encoder, streaminfo->data.stream_info.bits_per_sample); 99 FLAC__stream_encoder_set_sample_rate(encoder, streaminfo->data.stream_info.sample_rate); 100 FLAC__stream_encoder_set_blocksize(encoder, streaminfo->data.stream_info.min_blocksize); 101 FLAC__stream_encoder_set_max_lpc_order(encoder, 0); 102 FLAC__stream_encoder_set_qlp_coeff_precision(encoder, 0); 103 FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder, false); 104 FLAC__stream_encoder_set_do_escape_coding(encoder, false); 105 FLAC__stream_encoder_set_do_exhaustive_model_search(encoder, false); 106 FLAC__stream_encoder_set_min_residual_partition_order(encoder, 0); 107 FLAC__stream_encoder_set_max_residual_partition_order(encoder, 0); 108 FLAC__stream_encoder_set_rice_parameter_search_dist(encoder, 0); 109 FLAC__stream_encoder_set_total_samples_estimate(encoder, streaminfo->data.stream_info.total_samples); 110 FLAC__stream_encoder_set_metadata(encoder, metadata, num_metadata); 111 112 if(is_ogg) 113 init_status = FLAC__stream_encoder_init_ogg_stream(encoder, /*read_callback=*/0, encoder_write_callback_, /*seek_callback=*/0, /*tell_callback=*/0, encoder_metadata_callback_, &encoder_client_data); 114 else 115 init_status = FLAC__stream_encoder_init_stream(encoder, encoder_write_callback_, /*seek_callback=*/0, /*tell_callback=*/0, encoder_metadata_callback_, &encoder_client_data); 116 117 if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) { 118 fclose(encoder_client_data.file); 119 return false; 120 } 121 122 /* init the dummy sample buffer */ 123 for(i = 0; i < sizeof(samples) / sizeof(FLAC__int32); i++) 124 samples[i] = i & 7; 125 126 while(length > 0) { 127 n = min(length, sizeof(samples) / sizeof(FLAC__int32)); 128 129 if(!FLAC__stream_encoder_process_interleaved(encoder, samples, n)) { 130 fclose(encoder_client_data.file); 131 return false; 132 } 133 134 length -= n; 135 } 136 137 (void)FLAC__stream_encoder_finish(encoder); 138 139 fclose(encoder_client_data.file); 140 141 FLAC__stream_encoder_delete(encoder); 142 143 if(0 != output_filesize) { 144 struct stat filestats; 145 146 if(stat(output_filename, &filestats) != 0) 147 return false; 148 else 149 *output_filesize = filestats.st_size; 150 } 151 152 return true; 153} 154