diff options
| author | Justin Ruggles <justin.ruggles@gmail.com> | 2012-06-01 23:19:45 +0400 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2012-07-08 23:22:11 +0400 |
| commit | 8ca08066fc813c48722e9c5a79fcd58e725cc80f (patch) | |
| tree | 17254bcf69cf623af1881ed6e532e91a25c316ed /libavresample | |
| parent | db0e7bd0bd1344b0edfd6a779e832fcd47cacd00 (diff) | |
lavr: Use AV_SAMPLE_FMT_NONE to auto-select the internal sample format
Also make this the default value.
Diffstat (limited to 'libavresample')
| -rw-r--r-- | libavresample/options.c | 2 | ||||
| -rw-r--r-- | libavresample/utils.c | 27 |
2 files changed, 17 insertions, 12 deletions
diff --git a/libavresample/options.c b/libavresample/options.c index a1a0b0ca21..45678dceaa 100644 --- a/libavresample/options.c +++ b/libavresample/options.c @@ -39,7 +39,7 @@ static const AVOption options[] = { { "out_channel_layout", "Output Channel Layout", OFFSET(out_channel_layout), AV_OPT_TYPE_INT64, { 0 }, INT64_MIN, INT64_MAX, PARAM }, { "out_sample_fmt", "Output Sample Format", OFFSET(out_sample_fmt), AV_OPT_TYPE_INT, { AV_SAMPLE_FMT_S16 }, AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_NB-1, PARAM }, { "out_sample_rate", "Output Sample Rate", OFFSET(out_sample_rate), AV_OPT_TYPE_INT, { 48000 }, 1, INT_MAX, PARAM }, - { "internal_sample_fmt", "Internal Sample Format", OFFSET(internal_sample_fmt), AV_OPT_TYPE_INT, { AV_SAMPLE_FMT_FLTP }, AV_SAMPLE_FMT_NONE, AV_SAMPLE_FMT_NB-1, PARAM }, + { "internal_sample_fmt", "Internal Sample Format", OFFSET(internal_sample_fmt), AV_OPT_TYPE_INT, { AV_SAMPLE_FMT_NONE }, AV_SAMPLE_FMT_NONE, AV_SAMPLE_FMT_NB-1, PARAM }, { "mix_coeff_type", "Mixing Coefficient Type", OFFSET(mix_coeff_type), AV_OPT_TYPE_INT, { AV_MIX_COEFF_TYPE_FLT }, AV_MIX_COEFF_TYPE_Q8, AV_MIX_COEFF_TYPE_NB-1, PARAM, "mix_coeff_type" }, { "q8", "16-bit 8.8 Fixed-Point", 0, AV_OPT_TYPE_CONST, { AV_MIX_COEFF_TYPE_Q8 }, INT_MIN, INT_MAX, PARAM, "mix_coeff_type" }, { "q15", "32-bit 17.15 Fixed-Point", 0, AV_OPT_TYPE_CONST, { AV_MIX_COEFF_TYPE_Q15 }, INT_MIN, INT_MAX, PARAM, "mix_coeff_type" }, diff --git a/libavresample/utils.c b/libavresample/utils.c index 6d4509d7c1..ac1c36e17c 100644 --- a/libavresample/utils.c +++ b/libavresample/utils.c @@ -57,18 +57,23 @@ int avresample_open(AVAudioResampleContext *avr) avr->resample_needed = avr->in_sample_rate != avr->out_sample_rate || avr->force_resampling; - /* set sample format conversion parameters */ - /* override user-requested internal format to avoid unexpected failures - TODO: support more internal formats */ - if (avr->resample_needed && avr->internal_sample_fmt != AV_SAMPLE_FMT_S16P) { - av_log(avr, AV_LOG_WARNING, "Using s16p as internal sample format\n"); - avr->internal_sample_fmt = AV_SAMPLE_FMT_S16P; - } else if (avr->mixing_needed && - avr->internal_sample_fmt != AV_SAMPLE_FMT_S16P && - avr->internal_sample_fmt != AV_SAMPLE_FMT_FLTP) { - av_log(avr, AV_LOG_WARNING, "Using fltp as internal sample format\n"); - avr->internal_sample_fmt = AV_SAMPLE_FMT_FLTP; + /* select internal sample format if not specified by the user */ + if (avr->internal_sample_fmt == AV_SAMPLE_FMT_NONE && + (avr->mixing_needed || avr->resample_needed)) { + enum AVSampleFormat in_fmt = av_get_planar_sample_fmt(avr->in_sample_fmt); + enum AVSampleFormat out_fmt = av_get_planar_sample_fmt(avr->out_sample_fmt); + int max_bps = FFMAX(av_get_bytes_per_sample(in_fmt), + av_get_bytes_per_sample(out_fmt)); + if (avr->resample_needed || max_bps <= 2) { + avr->internal_sample_fmt = AV_SAMPLE_FMT_S16P; + } else if (avr->mixing_needed) { + avr->internal_sample_fmt = AV_SAMPLE_FMT_FLTP; + } + av_log(avr, AV_LOG_DEBUG, "Using %s as internal sample format\n", + av_get_sample_fmt_name(avr->internal_sample_fmt)); } + + /* set sample format conversion parameters */ if (avr->in_channels == 1) avr->in_sample_fmt = av_get_planar_sample_fmt(avr->in_sample_fmt); if (avr->out_channels == 1) |