diff options
author | Nicolas George <nicolas.george@normalesup.org> | 2012-06-23 14:19:14 +0400 |
---|---|---|
committer | Nicolas George <nicolas.george@normalesup.org> | 2012-07-08 21:54:08 +0400 |
commit | ba856c0be5599f21f241162e1f5f3f2506f3132c (patch) | |
tree | c42fbba9c54c2603dc14cd397ff063527d40dbe7 /libavfilter/vf_settb.c | |
parent | 99622f6678c4cc219f9d7732c64cb1cdfdfda949 (diff) |
lavfi: implement asettb filter.
Diffstat (limited to 'libavfilter/vf_settb.c')
-rw-r--r-- | libavfilter/vf_settb.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/libavfilter/vf_settb.c b/libavfilter/vf_settb.c index b6e951ba1f..3c5ac6a71b 100644 --- a/libavfilter/vf_settb.c +++ b/libavfilter/vf_settb.c @@ -29,17 +29,20 @@ #include "libavutil/rational.h" #include "avfilter.h" #include "internal.h" +#include "audio.h" #include "video.h" static const char *const var_names[] = { "AVTB", /* default timebase 1/AV_TIME_BASE */ "intb", /* input timebase */ + "sr", /* sample rate */ NULL }; enum var_name { VAR_AVTB, VAR_INTB, + VAR_SR, VAR_VARS_NB }; @@ -70,6 +73,7 @@ static int config_output_props(AVFilterLink *outlink) settb->var_values[VAR_AVTB] = av_q2d(AV_TIME_BASE_Q); settb->var_values[VAR_INTB] = av_q2d(inlink->time_base); + settb->var_values[VAR_SR] = inlink->sample_rate; outlink->w = inlink->w; outlink->h = inlink->h; @@ -113,9 +117,28 @@ static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref) ff_start_frame(outlink, picref2); } +static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples) +{ + AVFilterContext *ctx = inlink->dst; + AVFilterLink *outlink = ctx->outputs[0]; + AVFilterBufferRef *outsamples = insamples; + + if (av_cmp_q(inlink->time_base, outlink->time_base)) { + outsamples = avfilter_ref_buffer(insamples, ~0); + outsamples->pts = av_rescale_q(insamples->pts, inlink->time_base, outlink->time_base); + av_log(ctx, AV_LOG_DEBUG, "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n", + inlink ->time_base.num, inlink ->time_base.den, insamples ->pts, + outlink->time_base.num, outlink->time_base.den, outsamples->pts); + avfilter_unref_buffer(insamples); + } + + ff_filter_samples(outlink, outsamples); +} + +#if CONFIG_SETTB_FILTER AVFilter avfilter_vf_settb = { .name = "settb", - .description = NULL_IF_CONFIG_SMALL("Set timebase for the output link."), + .description = NULL_IF_CONFIG_SMALL("Set timebase for the video output link."), .init = init, .priv_size = sizeof(SetTBContext), @@ -132,3 +155,28 @@ AVFilter avfilter_vf_settb = { .config_props = config_output_props, }, { .name = NULL}}, }; +#endif + +#if CONFIG_ASETTB_FILTER +AVFilter avfilter_af_asettb = { + .name = "asettb", + .description = NULL_IF_CONFIG_SMALL("Set timebase for the audio output link."), + .init = init, + + .priv_size = sizeof(SetTBContext), + + .inputs = (const AVFilterPad[]) { + { .name = "default", + .type = AVMEDIA_TYPE_AUDIO, + .get_audio_buffer = ff_null_get_audio_buffer, + .filter_samples = filter_samples, }, + { .name = NULL } + }, + .outputs = (const AVFilterPad[]) { + { .name = "default", + .type = AVMEDIA_TYPE_AUDIO, + .config_props = config_output_props, }, + { .name = NULL} + }, +}; +#endif |