FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/af_ashowinfo.c
Date: 2022-12-05 03:11:11
Exec Total Coverage
Lines: 0 114 0.0%
Functions: 0 9 0.0%
Branches: 0 57 0.0%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2011 Stefano Sabatini
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /**
22 * @file
23 * filter for showing textual audio frame information
24 */
25
26 #include <inttypes.h>
27 #include <stddef.h>
28
29 #include "libavutil/adler32.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/common.h"
33 #include "libavutil/downmix_info.h"
34 #include "libavutil/intreadwrite.h"
35 #include "libavutil/mem.h"
36 #include "libavutil/replaygain.h"
37 #include "libavutil/timestamp.h"
38 #include "libavutil/samplefmt.h"
39
40 #include "libavcodec/defs.h"
41
42 #include "audio.h"
43 #include "avfilter.h"
44 #include "internal.h"
45
46 typedef struct AShowInfoContext {
47 /**
48 * Scratch space for individual plane checksums for planar audio
49 */
50 uint32_t *plane_checksums;
51 } AShowInfoContext;
52
53 static av_cold void uninit(AVFilterContext *ctx)
54 {
55 AShowInfoContext *s = ctx->priv;
56 av_freep(&s->plane_checksums);
57 }
58
59 static void dump_matrixenc(AVFilterContext *ctx, AVFrameSideData *sd)
60 {
61 enum AVMatrixEncoding enc;
62
63 av_log(ctx, AV_LOG_INFO, "matrix encoding: ");
64
65 if (sd->size < sizeof(enum AVMatrixEncoding)) {
66 av_log(ctx, AV_LOG_INFO, "invalid data");
67 return;
68 }
69
70 enc = *(enum AVMatrixEncoding *)sd->data;
71 switch (enc) {
72 case AV_MATRIX_ENCODING_NONE: av_log(ctx, AV_LOG_INFO, "none"); break;
73 case AV_MATRIX_ENCODING_DOLBY: av_log(ctx, AV_LOG_INFO, "Dolby Surround"); break;
74 case AV_MATRIX_ENCODING_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II"); break;
75 case AV_MATRIX_ENCODING_DPLIIX: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic IIx"); break;
76 case AV_MATRIX_ENCODING_DPLIIZ: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic IIz"); break;
77 case AV_MATRIX_ENCODING_DOLBYEX: av_log(ctx, AV_LOG_INFO, "Dolby EX"); break;
78 case AV_MATRIX_ENCODING_DOLBYHEADPHONE: av_log(ctx, AV_LOG_INFO, "Dolby Headphone"); break;
79 default: av_log(ctx, AV_LOG_WARNING, "unknown"); break;
80 }
81 }
82
83 static void dump_downmix(AVFilterContext *ctx, AVFrameSideData *sd)
84 {
85 AVDownmixInfo *di;
86
87 av_log(ctx, AV_LOG_INFO, "downmix: ");
88 if (sd->size < sizeof(*di)) {
89 av_log(ctx, AV_LOG_INFO, "invalid data");
90 return;
91 }
92
93 di = (AVDownmixInfo *)sd->data;
94
95 av_log(ctx, AV_LOG_INFO, "preferred downmix type - ");
96 switch (di->preferred_downmix_type) {
97 case AV_DOWNMIX_TYPE_LORO: av_log(ctx, AV_LOG_INFO, "Lo/Ro"); break;
98 case AV_DOWNMIX_TYPE_LTRT: av_log(ctx, AV_LOG_INFO, "Lt/Rt"); break;
99 case AV_DOWNMIX_TYPE_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II"); break;
100 default: av_log(ctx, AV_LOG_WARNING, "unknown"); break;
101 }
102
103 av_log(ctx, AV_LOG_INFO, " Mix levels: center %f (%f ltrt) - "
104 "surround %f (%f ltrt) - lfe %f",
105 di->center_mix_level, di->center_mix_level_ltrt,
106 di->surround_mix_level, di->surround_mix_level_ltrt,
107 di->lfe_mix_level);
108 }
109
110 static void print_gain(AVFilterContext *ctx, const char *str, int32_t gain)
111 {
112 av_log(ctx, AV_LOG_INFO, "%s - ", str);
113 if (gain == INT32_MIN)
114 av_log(ctx, AV_LOG_INFO, "unknown");
115 else
116 av_log(ctx, AV_LOG_INFO, "%f", gain / 100000.0f);
117 av_log(ctx, AV_LOG_INFO, ", ");
118 }
119
120 static void print_peak(AVFilterContext *ctx, const char *str, uint32_t peak)
121 {
122 av_log(ctx, AV_LOG_INFO, "%s - ", str);
123 if (!peak)
124 av_log(ctx, AV_LOG_INFO, "unknown");
125 else
126 av_log(ctx, AV_LOG_INFO, "%f", (float)peak / UINT32_MAX);
127 av_log(ctx, AV_LOG_INFO, ", ");
128 }
129
130 static void dump_replaygain(AVFilterContext *ctx, AVFrameSideData *sd)
131 {
132 AVReplayGain *rg;
133
134 av_log(ctx, AV_LOG_INFO, "replaygain: ");
135 if (sd->size < sizeof(*rg)) {
136 av_log(ctx, AV_LOG_INFO, "invalid data");
137 return;
138 }
139 rg = (AVReplayGain*)sd->data;
140
141 print_gain(ctx, "track gain", rg->track_gain);
142 print_peak(ctx, "track peak", rg->track_peak);
143 print_gain(ctx, "album gain", rg->album_gain);
144 print_peak(ctx, "album peak", rg->album_peak);
145 }
146
147 static void dump_audio_service_type(AVFilterContext *ctx, AVFrameSideData *sd)
148 {
149 enum AVAudioServiceType *ast;
150
151 av_log(ctx, AV_LOG_INFO, "audio service type: ");
152 if (sd->size < sizeof(*ast)) {
153 av_log(ctx, AV_LOG_INFO, "invalid data");
154 return;
155 }
156 ast = (enum AVAudioServiceType*)sd->data;
157 switch (*ast) {
158 case AV_AUDIO_SERVICE_TYPE_MAIN: av_log(ctx, AV_LOG_INFO, "Main Audio Service"); break;
159 case AV_AUDIO_SERVICE_TYPE_EFFECTS: av_log(ctx, AV_LOG_INFO, "Effects"); break;
160 case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED: av_log(ctx, AV_LOG_INFO, "Visually Impaired"); break;
161 case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED: av_log(ctx, AV_LOG_INFO, "Hearing Impaired"); break;
162 case AV_AUDIO_SERVICE_TYPE_DIALOGUE: av_log(ctx, AV_LOG_INFO, "Dialogue"); break;
163 case AV_AUDIO_SERVICE_TYPE_COMMENTARY: av_log(ctx, AV_LOG_INFO, "Commentary"); break;
164 case AV_AUDIO_SERVICE_TYPE_EMERGENCY: av_log(ctx, AV_LOG_INFO, "Emergency"); break;
165 case AV_AUDIO_SERVICE_TYPE_VOICE_OVER: av_log(ctx, AV_LOG_INFO, "Voice Over"); break;
166 case AV_AUDIO_SERVICE_TYPE_KARAOKE: av_log(ctx, AV_LOG_INFO, "Karaoke"); break;
167 default: av_log(ctx, AV_LOG_INFO, "unknown"); break;
168 }
169 }
170
171 static void dump_unknown(AVFilterContext *ctx, AVFrameSideData *sd)
172 {
173 av_log(ctx, AV_LOG_INFO, "unknown side data type: %d, size "
174 "%"SIZE_SPECIFIER" bytes", sd->type, sd->size);
175 }
176
177 static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
178 {
179 AVFilterContext *ctx = inlink->dst;
180 AShowInfoContext *s = ctx->priv;
181 #if FF_API_OLD_CHANNEL_LAYOUT
182 AVChannelLayout layout = { 0 };
183 #endif
184 char chlayout_str[128];
185 uint32_t checksum = 0;
186 int channels = inlink->ch_layout.nb_channels;
187 int planar = av_sample_fmt_is_planar(buf->format);
188 int block_align = av_get_bytes_per_sample(buf->format) * (planar ? 1 : channels);
189 int data_size = buf->nb_samples * block_align;
190 int planes = planar ? channels : 1;
191 int i;
192 void *tmp_ptr = av_realloc_array(s->plane_checksums, channels, sizeof(*s->plane_checksums));
193
194 if (!tmp_ptr)
195 return AVERROR(ENOMEM);
196 s->plane_checksums = tmp_ptr;
197
198 for (i = 0; i < planes; i++) {
199 uint8_t *data = buf->extended_data[i];
200
201 s->plane_checksums[i] = av_adler32_update(0, data, data_size);
202 checksum = i ? av_adler32_update(checksum, data, data_size) :
203 s->plane_checksums[0];
204 }
205
206 #if FF_API_OLD_CHANNEL_LAYOUT
207 FF_DISABLE_DEPRECATION_WARNINGS
208 if (av_channel_layout_from_mask(&layout, buf->channel_layout)) {
209 av_channel_layout_describe(&layout, chlayout_str, sizeof(chlayout_str));
210 FF_ENABLE_DEPRECATION_WARNINGS
211 } else if (buf->ch_layout.nb_channels)
212 #endif
213 av_channel_layout_describe(&buf->ch_layout, chlayout_str, sizeof(chlayout_str));
214
215 av_log(ctx, AV_LOG_INFO,
216 "n:%"PRId64" pts:%s pts_time:%s pos:%"PRId64" "
217 "fmt:%s channels:%d chlayout:%s rate:%d nb_samples:%d "
218 "checksum:%08"PRIX32" ",
219 inlink->frame_count_out,
220 av_ts2str(buf->pts), av_ts2timestr(buf->pts, &inlink->time_base),
221 buf->pkt_pos,
222 av_get_sample_fmt_name(buf->format), buf->ch_layout.nb_channels, chlayout_str,
223 buf->sample_rate, buf->nb_samples,
224 checksum);
225
226 av_log(ctx, AV_LOG_INFO, "plane_checksums: [ ");
227 for (i = 0; i < planes; i++)
228 av_log(ctx, AV_LOG_INFO, "%08"PRIX32" ", s->plane_checksums[i]);
229 av_log(ctx, AV_LOG_INFO, "]\n");
230
231 for (i = 0; i < buf->nb_side_data; i++) {
232 AVFrameSideData *sd = buf->side_data[i];
233
234 av_log(ctx, AV_LOG_INFO, " side data - ");
235 switch (sd->type) {
236 case AV_FRAME_DATA_MATRIXENCODING: dump_matrixenc (ctx, sd); break;
237 case AV_FRAME_DATA_DOWNMIX_INFO: dump_downmix (ctx, sd); break;
238 case AV_FRAME_DATA_REPLAYGAIN: dump_replaygain(ctx, sd); break;
239 case AV_FRAME_DATA_AUDIO_SERVICE_TYPE: dump_audio_service_type(ctx, sd); break;
240 default: dump_unknown (ctx, sd); break;
241 }
242
243 av_log(ctx, AV_LOG_INFO, "\n");
244 }
245
246 return ff_filter_frame(inlink->dst->outputs[0], buf);
247 }
248
249 static const AVFilterPad inputs[] = {
250 {
251 .name = "default",
252 .type = AVMEDIA_TYPE_AUDIO,
253 .filter_frame = filter_frame,
254 },
255 };
256
257 static const AVFilterPad outputs[] = {
258 {
259 .name = "default",
260 .type = AVMEDIA_TYPE_AUDIO,
261 },
262 };
263
264 const AVFilter ff_af_ashowinfo = {
265 .name = "ashowinfo",
266 .description = NULL_IF_CONFIG_SMALL("Show textual information for each audio frame."),
267 .priv_size = sizeof(AShowInfoContext),
268 .uninit = uninit,
269 .flags = AVFILTER_FLAG_METADATA_ONLY,
270 FILTER_INPUTS(inputs),
271 FILTER_OUTPUTS(outputs),
272 };
273