diff options
| author | Marton Balint <cus@passwd.hu> | 2012-01-09 01:42:38 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-01-09 04:16:06 +0100 |
| commit | 741aca793623afeff1d18816f416cc65104b7ef9 (patch) | |
| tree | 50059d3289edecf10112d626c4c821c72847c440 /libswresample | |
| parent | 3e9668501dea070c0a1bd6c721eab1af09b26339 (diff) | |
| download | ffmpeg-741aca793623afeff1d18816f416cc65104b7ef9.tar.gz | |
libswresample: introduce int swr_set_compensation() instead of void swr_compensate()
The new version returns AVERROR(EINVAL) is the specified paramters are invalid,
and also creates the resampler if none was used so far.
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample')
| -rw-r--r-- | libswresample/resample.c | 24 | ||||
| -rw-r--r-- | libswresample/swresample.h | 4 |
2 files changed, 22 insertions, 6 deletions
diff --git a/libswresample/resample.c b/libswresample/resample.c index 9b582eac84..2960a35745 100644 --- a/libswresample/resample.c +++ b/libswresample/resample.c @@ -245,11 +245,27 @@ void swri_resample_free(ResampleContext **c){ av_freep(c); } -void swr_compensate(struct SwrContext *s, int sample_delta, int compensation_distance){ - ResampleContext *c= s->resample; -// sample_delta += (c->ideal_dst_incr - c->dst_incr)*(int64_t)c->compensation_distance / c->ideal_dst_incr; +int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance){ + ResampleContext *c; + int ret; + + if (!s || compensation_distance < 0) + return AVERROR(EINVAL); + if (!compensation_distance && sample_delta) + return AVERROR(EINVAL); + if (!s->resample) { + s->flags |= SWR_FLAG_RESAMPLE; + ret = swr_init(s); + if (ret < 0) + return ret; + } + c= s->resample; c->compensation_distance= compensation_distance; - c->dst_incr = c->ideal_dst_incr - c->ideal_dst_incr * (int64_t)sample_delta / compensation_distance; + if (compensation_distance) + c->dst_incr = c->ideal_dst_incr - c->ideal_dst_incr * (int64_t)sample_delta / compensation_distance; + else + c->dst_incr = c->ideal_dst_incr; + return 0; } int swri_resample(ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx){ diff --git a/libswresample/swresample.h b/libswresample/swresample.h index 5b9eed926f..8dc4e1f348 100644 --- a/libswresample/swresample.h +++ b/libswresample/swresample.h @@ -30,7 +30,7 @@ #include "libavutil/samplefmt.h" #define LIBSWRESAMPLE_VERSION_MAJOR 0 -#define LIBSWRESAMPLE_VERSION_MINOR 5 +#define LIBSWRESAMPLE_VERSION_MINOR 6 #define LIBSWRESAMPLE_VERSION_MICRO 100 #define LIBSWRESAMPLE_VERSION_INT AV_VERSION_INT(LIBSWRESAMPLE_VERSION_MAJOR, \ @@ -114,7 +114,7 @@ int swr_convert(struct SwrContext *s, uint8_t *out[SWR_CH_MAX], int out_count, /** * Activate resampling compensation. */ -void swr_compensate(struct SwrContext *s, int sample_delta, int compensation_distance); +int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance); /** * Set a customized input channel mapping. |