diff options
Diffstat (limited to 'chromium/third_party/ffmpeg/libavfilter/af_anlmdn.c')
| -rw-r--r-- | chromium/third_party/ffmpeg/libavfilter/af_anlmdn.c | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/chromium/third_party/ffmpeg/libavfilter/af_anlmdn.c b/chromium/third_party/ffmpeg/libavfilter/af_anlmdn.c index 87c49c63b1c..b5bc94b4eb4 100644 --- a/chromium/third_party/ffmpeg/libavfilter/af_anlmdn.c +++ b/chromium/third_party/ffmpeg/libavfilter/af_anlmdn.c @@ -22,6 +22,7 @@ #include "libavutil/avassert.h" #include "libavutil/audio_fifo.h" +#include "libavutil/avstring.h" #include "libavutil/opt.h" #include "avfilter.h" #include "audio.h" @@ -29,7 +30,6 @@ #include "af_anlmdndsp.h" -#define MAX_DIFF 11.f #define WEIGHT_LUT_NBITS 20 #define WEIGHT_LUT_SIZE (1<<WEIGHT_LUT_NBITS) @@ -41,6 +41,7 @@ typedef struct AudioNLMeansContext { float a; int64_t pd; int64_t rd; + float m; int om; float pdiff_lut_scale; @@ -81,6 +82,7 @@ static const AVOption anlmdn_options[] = { { "i", "input", 0, AV_OPT_TYPE_CONST, {.i64=IN_MODE}, 0, 0, AF, "mode" }, { "o", "output", 0, AV_OPT_TYPE_CONST, {.i64=OUT_MODE}, 0, 0, AF, "mode" }, { "n", "noise", 0, AV_OPT_TYPE_CONST, {.i64=NOISE_MODE},0, 0, AF, "mode" }, + { "m", "set smooth factor", OFFSET(m), AV_OPT_TYPE_FLOAT, {.dbl=11.}, 1, 15, AF }, { NULL } }; @@ -178,7 +180,7 @@ static int config_output(AVFilterLink *outlink) if (ret < 0) return ret; - s->pdiff_lut_scale = 1.f / MAX_DIFF * WEIGHT_LUT_SIZE; + s->pdiff_lut_scale = 1.f / s->m * WEIGHT_LUT_SIZE; for (int i = 0; i < WEIGHT_LUT_SIZE; i++) { float w = -i / s->pdiff_lut_scale; @@ -201,6 +203,7 @@ static int filter_channel(AVFilterContext *ctx, void *arg, int ch, int nb_jobs) float *cache = (float *)s->cache->extended_data[ch]; const float sw = (65536.f / (4 * K + 2)) / sqrtf(s->a); float *dst = (float *)out->extended_data[ch] + s->offset; + const float smooth = s->m; for (int i = S; i < s->H + S; i++) { float P = 0.f, Q = 0.f; @@ -222,9 +225,12 @@ static int filter_channel(AVFilterContext *ctx, void *arg, int ch, int nb_jobs) unsigned weight_lut_idx; float w; - av_assert2(distance >= 0.f); + if (distance < 0.f) { + cache[j] = 0.f; + continue; + } w = distance * sw; - if (w >= MAX_DIFF) + if (w >= smooth) continue; weight_lut_idx = w * s->pdiff_lut_scale; av_assert2(weight_lut_idx < WEIGHT_LUT_SIZE); @@ -312,7 +318,7 @@ static int request_frame(AVFilterLink *outlink) if (s->eof_left < 0) s->eof_left = av_audio_fifo_size(s->fifo) - (s->S + s->K); - if (s->eof_left < 0) + if (s->eof_left <= 0) return AVERROR_EOF; in = ff_get_audio_buffer(outlink, s->H); if (!in) @@ -333,6 +339,29 @@ static av_cold void uninit(AVFilterContext *ctx) av_frame_free(&s->cache); } +static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, + char *res, int res_len, int flags) +{ + AudioNLMeansContext *s = ctx->priv; + + if (!strcmp(cmd, "s")) { + float a; + + if (av_sscanf(args, "%f", &a) == 1) + s->a = av_clipf(a, 0.00001, 10); + } else if (!strcmp(cmd, "o")) { + if (!strcmp(args, "i")) { + s->om = IN_MODE; + } else if (!strcmp(args, "o")) { + s->om = OUT_MODE; + } else if (!strcmp(args, "n")) { + s->om = NOISE_MODE; + } + } + + return 0; +} + static const AVFilterPad inputs[] = { { .name = "default", @@ -361,6 +390,7 @@ AVFilter ff_af_anlmdn = { .uninit = uninit, .inputs = inputs, .outputs = outputs, + .process_command = process_command, .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, }; |