/* * Copyright (c) 2011 Stefano Sabatini * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * filter for showing textual audio frame information */ #include #include "libavutil/adler32.h" #include "libavutil/attributes.h" #include "libavutil/channel_layout.h" #include "libavutil/downmix_info.h" #include "libavutil/mem.h" #include "libavutil/replaygain.h" #include "libavutil/timestamp.h" #include "libavutil/samplefmt.h" #include "libavcodec/defs.h" #include "audio.h" #include "avfilter.h" #include "filters.h" #include "internal.h" typedef struct AShowInfoContext { /** * Scratch space for individual plane checksums for planar audio */ uint32_t *plane_checksums; } AShowInfoContext; static av_cold void uninit(AVFilterContext *ctx) { AShowInfoContext *s = ctx->priv; av_freep(&s->plane_checksums); } static void dump_matrixenc(AVFilterContext *ctx, AVFrameSideData *sd) { enum AVMatrixEncoding enc; av_log(ctx, AV_LOG_INFO, "matrix encoding: "); if (sd->size < sizeof(enum AVMatrixEncoding)) { av_log(ctx, AV_LOG_INFO, "invalid data"); return; } enc = *(enum AVMatrixEncoding *)sd->data; switch (enc) { case AV_MATRIX_ENCODING_NONE: av_log(ctx, AV_LOG_INFO, "none"); break; case AV_MATRIX_ENCODING_DOLBY: av_log(ctx, AV_LOG_INFO, "Dolby Surround"); break; case AV_MATRIX_ENCODING_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II"); break; case AV_MATRIX_ENCODING_DPLIIX: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic IIx"); break; case AV_MATRIX_ENCODING_DPLIIZ: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic IIz"); break; case AV_MATRIX_ENCODING_DOLBYEX: av_log(ctx, AV_LOG_INFO, "Dolby EX"); break; case AV_MATRIX_ENCODING_DOLBYHEADPHONE: av_log(ctx, AV_LOG_INFO, "Dolby Headphone"); break; default: av_log(ctx, AV_LOG_WARNING, "unknown"); break; } } static void dump_downmix(AVFilterContext *ctx, AVFrameSideData *sd) { AVDownmixInfo *di; av_log(ctx, AV_LOG_INFO, "downmix: "); if (sd->size < sizeof(*di)) { av_log(ctx, AV_LOG_INFO, "invalid data"); return; } di = (AVDownmixInfo *)sd->data; av_log(ctx, AV_LOG_INFO, "preferred downmix type - "); switch (di->preferred_downmix_type) { case AV_DOWNMIX_TYPE_LORO: av_log(ctx, AV_LOG_INFO, "Lo/Ro"); break; case AV_DOWNMIX_TYPE_LTRT: av_log(ctx, AV_LOG_INFO, "Lt/Rt"); break; case AV_DOWNMIX_TYPE_DPLII: av_log(ctx, AV_LOG_INFO, "Dolby Pro Logic II"); break; default: av_log(ctx, AV_LOG_WARNING, "unknown"); break; } av_log(ctx, AV_LOG_INFO, " Mix levels: center %f (%f ltrt) - " "surround %f (%f ltrt) - lfe %f", di->center_mix_level, di->center_mix_level_ltrt, di->surround_mix_level, di->surround_mix_level_ltrt, di->lfe_mix_level); } static void print_gain(AVFilterContext *ctx, const char *str, int32_t gain) { av_log(ctx, AV_LOG_INFO, "%s - ", str); if (gain == INT32_MIN) av_log(ctx, AV_LOG_INFO, "unknown"); else av_log(ctx, AV_LOG_INFO, "%f", gain / 100000.0f); av_log(ctx, AV_LOG_INFO, ", "); } static void print_peak(AVFilterContext *ctx, const char *str, uint32_t peak) { av_log(ctx, AV_LOG_INFO, "%s - ", str); if (!peak) av_log(ctx, AV_LOG_INFO, "unknown"); else av_log(ctx, AV_LOG_INFO, "%f", (float)peak / UINT32_MAX); av_log(ctx, AV_LOG_INFO, ", "); } static void dump_replaygain(AVFilterContext *ctx, AVFrameSideData *sd) { AVReplayGain *rg; av_log(ctx, AV_LOG_INFO, "replaygain: "); if (sd->size < sizeof(*rg)) { av_log(ctx, AV_LOG_INFO, "invalid data"); return; } rg = (AVReplayGain*)sd->data; print_gain(ctx, "track gain", rg->track_gain); print_peak(ctx, "track peak", rg->track_peak); print_gain(ctx, "album gain", rg->album_gain); print_peak(ctx, "album peak", rg->album_peak); } static void dump_audio_service_type(AVFilterContext *ctx, AVFrameSideData *sd) { enum AVAudioServiceType *ast; av_log(ctx, AV_LOG_INFO, "audio service type: "); if (sd->size < sizeof(*ast)) { av_log(ctx, AV_LOG_INFO, "invalid data"); return; } ast = (enum AVAudioServiceType*)sd->data; switch (*ast) { case AV_AUDIO_SERVICE_TYPE_MAIN: av_log(ctx, AV_LOG_INFO, "Main Audio Service"); break; case AV_AUDIO_SERVICE_TYPE_EFFECTS: av_log(ctx, AV_LOG_INFO, "Effects"); break; case AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED: av_log(ctx, AV_LOG_INFO, "Visually Impaired"); break; case AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED: av_log(ctx, AV_LOG_INFO, "Hearing Impaired"); break; case AV_AUDIO_SERVICE_TYPE_DIALOGUE: av_log(ctx, AV_LOG_INFO, "Dialogue"); break; case AV_AUDIO_SERVICE_TYPE_COMMENTARY: av_log(ctx, AV_LOG_INFO, "Commentary"); break; case AV_AUDIO_SERVICE_TYPE_EMERGENCY: av_log(ctx, AV_LOG_INFO, "Emergency"); break; case AV_AUDIO_SERVICE_TYPE_VOICE_OVER: av_log(ctx, AV_LOG_INFO, "Voice Over"); break; case AV_AUDIO_SERVICE_TYPE_KARAOKE: av_log(ctx, AV_LOG_INFO, "Karaoke"); break; default: av_log(ctx, AV_LOG_INFO, "unknown"); break; } } static void dump_unknown(AVFilterContext *ctx, AVFrameSideData *sd) { av_log(ctx, AV_LOG_INFO, "unknown side data type: %d, size " "%"SIZE_SPECIFIER" bytes", sd->type, sd->size); } static int filter_frame(AVFilterLink *inlink, AVFrame *buf) { FilterLink *inl = ff_filter_link(inlink); AVFilterContext *ctx = inlink->dst; AShowInfoContext *s = ctx->priv; char chlayout_str[128]; uint32_t checksum = 0; int channels = inlink->ch_layout.nb_channels; int planar = av_sample_fmt_is_planar(buf->format); int block_align = av_get_bytes_per_sample(buf->format) * (planar ? 1 : channels); int data_size = buf->nb_samples * block_align; int planes = planar ? channels : 1; int i; void *tmp_ptr = av_realloc_array(s->plane_checksums, channels, sizeof(*s->plane_checksums)); if (!tmp_ptr) return AVERROR(ENOMEM); s->plane_checksums = tmp_ptr; for (i = 0; i < planes; i++) { uint8_t *data = buf->extended_data[i]; s->plane_checksums[i] = av_adler32_update(0, data, data_size); checksum = i ? av_adler32_update(checksum, data, data_size) : s->plane_checksums[0]; } av_channel_layout_describe(&buf->ch_layout, chlayout_str, sizeof(chlayout_str)); av_log(ctx, AV_LOG_INFO, "n:%"PRId64" pts:%s pts_time:%s " "fmt:%s channels:%d chlayout:%s rate:%d nb_samples:%d " "checksum:%08"PRIX32" ", inl->frame_count_out, av_ts2str(buf->pts), av_ts2timestr(buf->pts, &inlink->time_base), av_get_sample_fmt_name(buf->format), buf->ch_layout.nb_channels, chlayout_str, buf->sample_rate, buf->nb_samples, checksum); av_log(ctx, AV_LOG_INFO, "plane_checksums: [ "); for (i = 0; i < planes; i++) av_log(ctx, AV_LOG_INFO, "%08"PRIX32" ", s->plane_checksums[i]); av_log(ctx, AV_LOG_INFO, "]\n"); for (i = 0; i < buf->nb_side_data; i++) { AVFrameSideData *sd = buf->side_data[i]; av_log(ctx, AV_LOG_INFO, " side data - "); switch (sd->type) { case AV_FRAME_DATA_MATRIXENCODING: dump_matrixenc (ctx, sd); break; case AV_FRAME_DATA_DOWNMIX_INFO: dump_downmix (ctx, sd); break; case AV_FRAME_DATA_REPLAYGAIN: dump_replaygain(ctx, sd); break; case AV_FRAME_DATA_AUDIO_SERVICE_TYPE: dump_audio_service_type(ctx, sd); break; default: dump_unknown (ctx, sd); break; } av_log(ctx, AV_LOG_INFO, "\n"); } return ff_filter_frame(inlink->dst->outputs[0], buf); } static const AVFilterPad inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_AUDIO, .filter_frame = filter_frame, }, }; const AVFilter ff_af_ashowinfo = { .name = "ashowinfo", .description = NULL_IF_CONFIG_SMALL("Show textual information for each audio frame."), .priv_size = sizeof(AShowInfoContext), .uninit = uninit, .flags = AVFILTER_FLAG_METADATA_ONLY, FILTER_INPUTS(inputs), FILTER_OUTPUTS(ff_audio_default_filterpad), };