1 /* test_libFLAC - Unit tester for libFLAC
2 * Copyright (C) 2002,2003,2004,2005 Josh Coalson
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.
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.
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.
19 #include "file_utils.h"
20 #include "FLAC/assert.h"
21 #include "FLAC/stream_encoder.h"
24 #include <sys/stat.h> /* for stat() */
29 #define min(a,b) ((a)<(b)?(a):(b))
31 #ifdef FLAC__VALGRIND_TESTING
32 static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
34 size_t ret = fwrite(ptr, size, nmemb, stream);
40 #define local__fwrite fwrite
45 } encoder_client_struct;
47 static FLAC__StreamEncoderWriteStatus encoder_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
49 encoder_client_struct *ecd = (encoder_client_struct*)client_data;
51 (void)encoder, (void)samples, (void)current_frame;
53 if(local__fwrite(buffer, 1, bytes, ecd->file) != bytes)
54 return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
56 return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
59 static void encoder_metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
61 (void)encoder, (void)metadata, (void)client_data;
64 FLAC__bool file_utils__generate_flacfile(const char *output_filename, unsigned *output_filesize, unsigned length, const FLAC__StreamMetadata *streaminfo, FLAC__StreamMetadata **metadata, unsigned num_metadata)
66 FLAC__int32 samples[1024];
67 FLAC__StreamEncoder *encoder;
68 encoder_client_struct encoder_client_data;
71 FLAC__ASSERT(0 != output_filename);
72 FLAC__ASSERT(0 != streaminfo);
73 FLAC__ASSERT(streaminfo->type == FLAC__METADATA_TYPE_STREAMINFO);
74 FLAC__ASSERT((streaminfo->is_last && num_metadata == 0) || (!streaminfo->is_last && num_metadata > 0));
76 if(0 == (encoder_client_data.file = fopen(output_filename, "wb")))
79 encoder = FLAC__stream_encoder_new();
81 fclose(encoder_client_data.file);
85 FLAC__stream_encoder_set_verify(encoder, true);
86 FLAC__stream_encoder_set_streamable_subset(encoder, true);
87 FLAC__stream_encoder_set_do_mid_side_stereo(encoder, false);
88 FLAC__stream_encoder_set_loose_mid_side_stereo(encoder, false);
89 FLAC__stream_encoder_set_channels(encoder, streaminfo->data.stream_info.channels);
90 FLAC__stream_encoder_set_bits_per_sample(encoder, streaminfo->data.stream_info.bits_per_sample);
91 FLAC__stream_encoder_set_sample_rate(encoder, streaminfo->data.stream_info.sample_rate);
92 FLAC__stream_encoder_set_blocksize(encoder, streaminfo->data.stream_info.min_blocksize);
93 FLAC__stream_encoder_set_max_lpc_order(encoder, 0);
94 FLAC__stream_encoder_set_qlp_coeff_precision(encoder, 0);
95 FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder, false);
96 FLAC__stream_encoder_set_do_escape_coding(encoder, false);
97 FLAC__stream_encoder_set_do_exhaustive_model_search(encoder, false);
98 FLAC__stream_encoder_set_min_residual_partition_order(encoder, 0);
99 FLAC__stream_encoder_set_max_residual_partition_order(encoder, 0);
100 FLAC__stream_encoder_set_rice_parameter_search_dist(encoder, 0);
101 FLAC__stream_encoder_set_total_samples_estimate(encoder, streaminfo->data.stream_info.total_samples);
102 FLAC__stream_encoder_set_metadata(encoder, metadata, num_metadata);
103 FLAC__stream_encoder_set_write_callback(encoder, encoder_write_callback_);
104 FLAC__stream_encoder_set_metadata_callback(encoder, encoder_metadata_callback_);
105 FLAC__stream_encoder_set_client_data(encoder, &encoder_client_data);
107 if(FLAC__stream_encoder_init(encoder) != FLAC__STREAM_ENCODER_OK) {
108 fclose(encoder_client_data.file);
112 /* init the dummy sample buffer */
113 for(i = 0; i < sizeof(samples) / sizeof(FLAC__int32); i++)
117 n = min(length, sizeof(samples) / sizeof(FLAC__int32));
119 if(!FLAC__stream_encoder_process_interleaved(encoder, samples, n)) {
120 fclose(encoder_client_data.file);
127 FLAC__stream_encoder_finish(encoder);
129 fclose(encoder_client_data.file);
131 FLAC__stream_encoder_delete(encoder);
133 if(0 != output_filesize) {
134 struct stat filestats;
136 if(stat(output_filename, &filestats) != 0)
139 *output_filesize = (unsigned)filestats.st_size;