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12 * Lesser General Public License for more details.
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22 #include "libavutil/mem.h"
23 #include "libavutil/audio_fifo.c"
25 #define MAX_CHANNELS 32
28 typedef struct TestStruct {
29 const enum AVSampleFormat format;
31 void const *data_planes[MAX_CHANNELS];
32 const int nb_samples_pch;
35 static const uint8_t data_U8 [] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
36 static const int16_t data_S16[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
37 static const float data_FLT[] = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0};
39 static const TestStruct test_struct[] = {
40 {.format = AV_SAMPLE_FMT_U8 , .nb_ch = 1, .data_planes = {data_U8 , }, .nb_samples_pch = 12},
41 {.format = AV_SAMPLE_FMT_U8P , .nb_ch = 2, .data_planes = {data_U8 , data_U8 +6, }, .nb_samples_pch = 6 },
42 {.format = AV_SAMPLE_FMT_S16 , .nb_ch = 1, .data_planes = {data_S16, }, .nb_samples_pch = 12},
43 {.format = AV_SAMPLE_FMT_S16P , .nb_ch = 2, .data_planes = {data_S16, data_S16+6, }, .nb_samples_pch = 6 },
44 {.format = AV_SAMPLE_FMT_FLT , .nb_ch = 1, .data_planes = {data_FLT, }, .nb_samples_pch = 12},
45 {.format = AV_SAMPLE_FMT_FLTP , .nb_ch = 2, .data_planes = {data_FLT, data_FLT+6, }, .nb_samples_pch = 6 }
48 static void free_data_planes(AVAudioFifo *afifo, void **output_data)
51 for (i = 0; i < afifo->nb_buffers; ++i){
52 av_freep(&output_data[i]);
54 av_freep(&output_data);
57 static void ERROR(const char *str)
59 fprintf(stderr, "%s\n", str);
63 static void print_audio_bytes(const TestStruct *test_sample, void **data_planes, int nb_samples)
66 int byte_offset = av_get_bytes_per_sample(test_sample->format);
67 int buffers = av_sample_fmt_is_planar(test_sample->format)
68 ? test_sample->nb_ch : 1;
69 int line_size = (buffers > 1) ? nb_samples * byte_offset
70 : nb_samples * byte_offset * test_sample->nb_ch;
71 for (p = 0; p < buffers; ++p){
72 for(b = 0; b < line_size; b+=byte_offset){
73 for (f = 0; f < byte_offset; f++){
74 int order = !HAVE_BIGENDIAN ? (byte_offset - f - 1) : f;
75 printf("%02x", *((uint8_t*)data_planes[p] + b + order));
83 static int read_samples_from_audio_fifo(AVAudioFifo* afifo, void ***output, int nb_samples)
86 int samples = FFMIN(nb_samples, afifo->nb_samples);
87 int tot_elements = !av_sample_fmt_is_planar(afifo->sample_fmt)
88 ? samples : afifo->channels * samples;
89 void **data_planes = av_malloc_array(afifo->nb_buffers, sizeof(void*));
91 ERROR("failed to allocate memory!");
93 free_data_planes(afifo, *output);
94 *output = data_planes;
96 for (i = 0; i < afifo->nb_buffers; ++i){
97 data_planes[i] = av_malloc_array(tot_elements, afifo->sample_size);
99 ERROR("failed to allocate memory!");
102 return av_audio_fifo_read(afifo, *output, nb_samples);
105 static int write_samples_to_audio_fifo(AVAudioFifo* afifo, const TestStruct *test_sample,
106 int nb_samples, int offset)
109 void *data_planes[MAX_CHANNELS];
111 if(nb_samples > test_sample->nb_samples_pch - offset){
114 if(offset >= test_sample->nb_samples_pch){
117 offset_size = offset * afifo->sample_size;
119 for (i = 0; i < afifo->nb_buffers ; ++i){
120 data_planes[i] = (uint8_t*)test_sample->data_planes[i] + offset_size;
123 return av_audio_fifo_write(afifo, data_planes, nb_samples);
126 static void test_function(const TestStruct *test_sample)
129 void **output_data = NULL;
130 AVAudioFifo *afifo = av_audio_fifo_alloc(test_sample->format, test_sample->nb_ch,
131 test_sample->nb_samples_pch);
133 ERROR("ERROR: av_audio_fifo_alloc returned NULL!");
135 ret = write_samples_to_audio_fifo(afifo, test_sample, test_sample->nb_samples_pch, 0);
137 ERROR("ERROR: av_audio_fifo_write failed!");
139 printf("written: %d\n", ret);
141 ret = write_samples_to_audio_fifo(afifo, test_sample, test_sample->nb_samples_pch, 0);
143 ERROR("ERROR: av_audio_fifo_write failed!");
145 printf("written: %d\n", ret);
146 printf("remaining samples in audio_fifo: %d\n\n", av_audio_fifo_size(afifo));
148 ret = read_samples_from_audio_fifo(afifo, &output_data, test_sample->nb_samples_pch);
150 ERROR("ERROR: av_audio_fifo_read failed!");
152 printf("read: %d\n", ret);
153 print_audio_bytes(test_sample, output_data, ret);
154 printf("remaining samples in audio_fifo: %d\n\n", av_audio_fifo_size(afifo));
156 /* test av_audio_fifo_peek */
157 ret = av_audio_fifo_peek(afifo, output_data, afifo->nb_samples);
159 ERROR("ERROR: av_audio_fifo_peek failed!");
162 print_audio_bytes(test_sample, output_data, ret);
165 /* test av_audio_fifo_peek_at */
166 printf("peek_at:\n");
167 for (i = 0; i < afifo->nb_samples; ++i){
168 ret = av_audio_fifo_peek_at(afifo, output_data, 1, i);
170 ERROR("ERROR: av_audio_fifo_peek_at failed!");
173 print_audio_bytes(test_sample, output_data, ret);
177 /* test av_audio_fifo_drain */
178 ret = av_audio_fifo_drain(afifo, afifo->nb_samples);
180 ERROR("ERROR: av_audio_fifo_drain failed!");
182 if (afifo->nb_samples){
183 ERROR("drain failed to flush all samples in audio_fifo!");
187 free_data_planes(afifo, output_data);
188 av_audio_fifo_free(afifo);
193 int t, tests = sizeof(test_struct)/sizeof(test_struct[0]);
195 for (t = 0; t < tests; ++t){
196 printf("\nTEST: %d\n\n", t+1);
197 test_function(&test_struct[t]);