2 * Copyright (c) 2011 Stefano Sabatini
4 * This file is part of FFmpeg.
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.
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.
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
23 * filter for showing textual audio frame information
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"
44 typedef struct AShowInfoContext {
46 * Scratch space for individual plane checksums for planar audio
48 uint32_t *plane_checksums;
51 static av_cold void uninit(AVFilterContext *ctx)
53 AShowInfoContext *s = ctx->priv;
54 av_freep(&s->plane_checksums);
57 static void dump_matrixenc(AVFilterContext *ctx, AVFrameSideData *sd)
59 enum AVMatrixEncoding enc;
61 av_log(ctx, AV_LOG_INFO, "matrix encoding: ");
63 if (sd->size < sizeof(enum AVMatrixEncoding)) {
64 av_log(ctx, AV_LOG_INFO, "invalid data");
68 enc = *(enum AVMatrixEncoding *)sd->data;
70 case AV_MATRIX_ENCODING_NONE: av_log(ctx, AV_LOG_INFO, "none"); break;
71 case AV_MATRIX_ENCODING_DOLBY: av_log(ctx, AV_LOG_INFO, "Dolby Surround"); break;
72 case AV_MATRIX_ENCODING_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II"); break;
73 case AV_MATRIX_ENCODING_DPLIIX: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic IIx"); break;
74 case AV_MATRIX_ENCODING_DPLIIZ: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic IIz"); break;
75 case AV_MATRIX_ENCODING_DOLBYEX: av_log(ctx, AV_LOG_INFO, "Dolby EX"); break;
76 case AV_MATRIX_ENCODING_DOLBYHEADPHONE: av_log(ctx, AV_LOG_INFO, "Dolby Headphone"); break;
77 default: av_log(ctx, AV_LOG_WARNING, "unknown"); break;
81 static void dump_downmix(AVFilterContext *ctx, AVFrameSideData *sd)
85 av_log(ctx, AV_LOG_INFO, "downmix: ");
86 if (sd->size < sizeof(*di)) {
87 av_log(ctx, AV_LOG_INFO, "invalid data");
91 di = (AVDownmixInfo *)sd->data;
93 av_log(ctx, AV_LOG_INFO, "preferred downmix type - ");
94 switch (di->preferred_downmix_type) {
95 case AV_DOWNMIX_TYPE_LORO: av_log(ctx, AV_LOG_INFO, "Lo/Ro"); break;
96 case AV_DOWNMIX_TYPE_LTRT: av_log(ctx, AV_LOG_INFO, "Lt/Rt"); break;
97 case AV_DOWNMIX_TYPE_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II"); break;
98 default: av_log(ctx, AV_LOG_WARNING, "unknown"); break;
101 av_log(ctx, AV_LOG_INFO, " Mix levels: center %f (%f ltrt) - "
102 "surround %f (%f ltrt) - lfe %f",
103 di->center_mix_level, di->center_mix_level_ltrt,
104 di->surround_mix_level, di->surround_mix_level_ltrt,
108 static void print_gain(AVFilterContext *ctx, const char *str, int32_t gain)
110 av_log(ctx, AV_LOG_INFO, "%s - ", str);
111 if (gain == INT32_MIN)
112 av_log(ctx, AV_LOG_INFO, "unknown");
114 av_log(ctx, AV_LOG_INFO, "%f", gain / 100000.0f);
115 av_log(ctx, AV_LOG_INFO, ", ");
118 static void print_peak(AVFilterContext *ctx, const char *str, uint32_t peak)
120 av_log(ctx, AV_LOG_INFO, "%s - ", str);
122 av_log(ctx, AV_LOG_INFO, "unknown");
124 av_log(ctx, AV_LOG_INFO, "%f", (float)peak / UINT32_MAX);
125 av_log(ctx, AV_LOG_INFO, ", ");
128 static void dump_replaygain(AVFilterContext *ctx, AVFrameSideData *sd)
132 av_log(ctx, AV_LOG_INFO, "replaygain: ");
133 if (sd->size < sizeof(*rg)) {
134 av_log(ctx, AV_LOG_INFO, "invalid data");
137 rg = (AVReplayGain*)sd->data;
139 print_gain(ctx, "track gain", rg->track_gain);
140 print_peak(ctx, "track peak", rg->track_peak);
141 print_gain(ctx, "album gain", rg->album_gain);
142 print_peak(ctx, "album peak", rg->album_peak);
145 static void dump_unknown(AVFilterContext *ctx, AVFrameSideData *sd)
147 av_log(ctx, AV_LOG_INFO, "unknown side data type: %d, size %d bytes", sd->type, sd->size);
150 static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
152 AVFilterContext *ctx = inlink->dst;
153 AShowInfoContext *s = ctx->priv;
154 char chlayout_str[128];
155 uint32_t checksum = 0;
156 int channels = inlink->channels;
157 int planar = av_sample_fmt_is_planar(buf->format);
158 int block_align = av_get_bytes_per_sample(buf->format) * (planar ? 1 : channels);
159 int data_size = buf->nb_samples * block_align;
160 int planes = planar ? channels : 1;
162 void *tmp_ptr = av_realloc(s->plane_checksums, channels * sizeof(*s->plane_checksums));
165 return AVERROR(ENOMEM);
166 s->plane_checksums = tmp_ptr;
168 for (i = 0; i < planes; i++) {
169 uint8_t *data = buf->extended_data[i];
171 s->plane_checksums[i] = av_adler32_update(0, data, data_size);
172 checksum = i ? av_adler32_update(checksum, data, data_size) :
173 s->plane_checksums[0];
176 av_get_channel_layout_string(chlayout_str, sizeof(chlayout_str), -1,
177 buf->channel_layout);
179 av_log(ctx, AV_LOG_INFO,
180 "n:%"PRId64" pts:%s pts_time:%s pos:%"PRId64" "
181 "fmt:%s channels:%d chlayout:%s rate:%d nb_samples:%d "
182 "checksum:%08"PRIX32" ",
184 av_ts2str(buf->pts), av_ts2timestr(buf->pts, &inlink->time_base),
185 av_frame_get_pkt_pos(buf),
186 av_get_sample_fmt_name(buf->format), av_frame_get_channels(buf), chlayout_str,
187 buf->sample_rate, buf->nb_samples,
190 av_log(ctx, AV_LOG_INFO, "plane_checksums: [ ");
191 for (i = 0; i < planes; i++)
192 av_log(ctx, AV_LOG_INFO, "%08"PRIX32" ", s->plane_checksums[i]);
193 av_log(ctx, AV_LOG_INFO, "]\n");
195 for (i = 0; i < buf->nb_side_data; i++) {
196 AVFrameSideData *sd = buf->side_data[i];
198 av_log(ctx, AV_LOG_INFO, " side data - ");
200 case AV_FRAME_DATA_MATRIXENCODING: dump_matrixenc (ctx, sd); break;
201 case AV_FRAME_DATA_DOWNMIX_INFO: dump_downmix (ctx, sd); break;
202 case AV_FRAME_DATA_REPLAYGAIN: dump_replaygain(ctx, sd); break;
203 default: dump_unknown (ctx, sd); break;
206 av_log(ctx, AV_LOG_INFO, "\n");
209 return ff_filter_frame(inlink->dst->outputs[0], buf);
212 static const AVFilterPad inputs[] = {
215 .type = AVMEDIA_TYPE_AUDIO,
216 .filter_frame = filter_frame,
221 static const AVFilterPad outputs[] = {
224 .type = AVMEDIA_TYPE_AUDIO,
229 AVFilter ff_af_ashowinfo = {
231 .description = NULL_IF_CONFIG_SMALL("Show textual information for each audio frame."),
232 .priv_size = sizeof(AShowInfoContext),