From: Limin Wang <lance.lmw...@gmail.com> Signed-off-by: Limin Wang <lance.lmw...@gmail.com> --- doc/filters.texi | 3 +++ libavfilter/af_loudnorm.c | 54 +++++++++++++++++++++++++++++++++++++-- 2 files changed, 55 insertions(+), 2 deletions(-)
diff --git a/doc/filters.texi b/doc/filters.texi index 3931d8d79e..738a40df4e 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -4285,6 +4285,9 @@ Options are true or false. Default is false. @item print_format Set print format for stats. Options are summary, json, or none. Default value is none. + +@item file, f +Set file path for the measured stats @end table @section lowpass diff --git a/libavfilter/af_loudnorm.c b/libavfilter/af_loudnorm.c index 314b25fa39..bf530195e4 100644 --- a/libavfilter/af_loudnorm.c +++ b/libavfilter/af_loudnorm.c @@ -20,6 +20,8 @@ /* http://k.ylo.ph/2016/04/04/loudnorm.html */ +#include "libavutil/avstring.h" +#include "libavformat/avio.h" #include "libavutil/opt.h" #include "avfilter.h" #include "internal.h" @@ -62,6 +64,9 @@ typedef struct LoudNormContext { int linear; int dual_mono; enum PrintFormat print_format; + AVIOContext* pb; + char *filename; + void (*print)(AVFilterContext *ctx, const char *msg, ...) av_printf_format(2, 3); double *buf; int buf_size; @@ -119,6 +124,8 @@ static const AVOption loudnorm_options[] = { { "none", 0, 0, AV_OPT_TYPE_CONST, {.i64 = NONE}, 0, 0, FLAGS, "print_format" }, { "json", 0, 0, AV_OPT_TYPE_CONST, {.i64 = JSON}, 0, 0, FLAGS, "print_format" }, { "summary", 0, 0, AV_OPT_TYPE_CONST, {.i64 = SUMMARY}, 0, 0, FLAGS, "print_format" }, + { "file", "set file path for the measured stats", OFFSET(filename), AV_OPT_TYPE_STRING, {.str=NULL}, FLAGS }, + { "f", "set file path for the measured stats", OFFSET(filename), AV_OPT_TYPE_STRING, {.str=NULL}, FLAGS }, { NULL } }; @@ -781,6 +788,30 @@ static int config_input(AVFilterLink *inlink) return 0; } +static void print_log(AVFilterContext *ctx, const char *msg, ...) +{ + va_list va; + + va_start(va, msg); + if (msg) + av_vlog(ctx, AV_LOG_INFO, msg, va); + va_end(va); +} + +static void print_file(AVFilterContext *ctx, const char *msg, ...) +{ + LoudNormContext *s = ctx->priv; + va_list va; + + va_start(va, msg); + if (msg) { + char buf[1024]; + vsnprintf(buf, sizeof(buf), msg, va); + avio_write(s->pb, buf, av_strnlen(buf, sizeof(buf))); + } + va_end(va); +} + static av_cold int init(AVFilterContext *ctx) { LoudNormContext *s = ctx->priv; @@ -799,6 +830,22 @@ static av_cold int init(AVFilterContext *ctx) } } + if (s->print_format != NONE && s->filename) { + s->print = print_file; + } else { + s->print = print_log; + } + + if (s->filename) { + int ret = avio_open(&s->pb, s->filename, AVIO_FLAG_WRITE); + if (ret < 0) { + char buf[128]; + av_strerror(ret, buf, sizeof(buf)); + av_log(ctx, AV_LOG_ERROR, "Could not open %s: %s\n", s->filename, buf); + return ret; + } + } + return 0; } @@ -836,7 +883,7 @@ static av_cold void uninit(AVFilterContext *ctx) break; case JSON: - av_log(ctx, AV_LOG_INFO, + s->print(ctx, "\n{\n" "\t\"input_i\" : \"%.2f\",\n" "\t\"input_tp\" : \"%.2f\",\n" @@ -863,7 +910,7 @@ static av_cold void uninit(AVFilterContext *ctx) break; case SUMMARY: - av_log(ctx, AV_LOG_INFO, + s->print(ctx, "\n" "Input Integrated: %+6.1f LUFS\n" "Input True Peak: %+6.1f dBTP\n" @@ -899,6 +946,9 @@ end: av_freep(&s->limiter_buf); av_freep(&s->prev_smp); av_freep(&s->buf); + + if (s->pb) + avio_closep(&s->pb); } static const AVFilterPad avfilter_af_loudnorm_inputs[] = { -- 2.21.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
