diff options
Diffstat (limited to 'libavfilter/defaults.c')
| -rw-r--r-- | libavfilter/defaults.c | 133 |
1 files changed, 42 insertions, 91 deletions
diff --git a/libavfilter/defaults.c b/libavfilter/defaults.c index 9ee23e57b7..c39ed64048 100644 --- a/libavfilter/defaults.c +++ b/libavfilter/defaults.c @@ -40,28 +40,30 @@ AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, int per uint8_t *data[4]; int i; AVFilterBufferRef *picref = NULL; - AVFilterPool *pool= link->pool; - - if(pool) for(i=0; i<POOL_SIZE; i++){ - picref= pool->pic[i]; - if(picref && picref->buf->format == link->format && picref->buf->w == w && picref->buf->h == h){ - AVFilterBuffer *pic= picref->buf; - pool->pic[i]= NULL; - pool->count--; - picref->video->w = w; - picref->video->h = h; - picref->perms = perms | AV_PERM_READ; - picref->format= link->format; - pic->refcount = 1; - memcpy(picref->data, pic->data, sizeof(picref->data)); - memcpy(picref->linesize, pic->linesize, sizeof(picref->linesize)); - return picref; + AVFilterPool *pool = link->pool; + + if (pool) { + for (i = 0; i < POOL_SIZE; i++) { + picref = pool->pic[i]; + if (picref && picref->buf->format == link->format && picref->buf->w == w && picref->buf->h == h) { + AVFilterBuffer *pic = picref->buf; + pool->pic[i] = NULL; + pool->count--; + picref->video->w = w; + picref->video->h = h; + picref->perms = perms | AV_PERM_READ; + picref->format = link->format; + pic->refcount = 1; + memcpy(picref->data, pic->data, sizeof(picref->data)); + memcpy(picref->linesize, pic->linesize, sizeof(picref->linesize)); + return picref; + } } - }else + } else pool = link->pool = av_mallocz(sizeof(AVFilterPool)); - // +2 is needed for swscaler, +16 to be SIMD-friendly - if ((i=av_image_alloc(data, linesize, w, h, link->format, 16)) < 0) + // align: +2 is needed for swscaler, +16 to be SIMD-friendly + if ((i = av_image_alloc(data, linesize, w, h, link->format, 16)) < 0) return NULL; picref = avfilter_get_video_buffer_ref_from_arrays(data, linesize, @@ -72,88 +74,37 @@ AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, int per } memset(data[0], 128, i); - picref->buf->priv= pool; - picref->buf->free= NULL; + picref->buf->priv = pool; + picref->buf->free = NULL; return picref; } AVFilterBufferRef *avfilter_default_get_audio_buffer(AVFilterLink *link, int perms, - enum AVSampleFormat sample_fmt, int size, + enum AVSampleFormat sample_fmt, int nb_samples, int64_t channel_layout, int planar) { - AVFilterBuffer *samples = av_mallocz(sizeof(AVFilterBuffer)); - AVFilterBufferRef *ref = NULL; - int i, sample_size, chans_nb, bufsize, per_channel_size, step_size = 0; - char *buf; - - if (!samples || !(ref = av_mallocz(sizeof(AVFilterBufferRef)))) - goto fail; - - ref->buf = samples; - ref->format = sample_fmt; - - ref->audio = av_mallocz(sizeof(AVFilterBufferRefAudioProps)); - if (!ref->audio) - goto fail; - - ref->audio->channel_layout = channel_layout; - ref->audio->size = size; - ref->audio->planar = planar; - - /* make sure the buffer gets read permission or it's useless for output */ - ref->perms = perms | AV_PERM_READ; - - samples->refcount = 1; - samples->free = ff_avfilter_default_free_buffer; - - sample_size = av_get_bits_per_sample_fmt(sample_fmt) >>3; - chans_nb = av_get_channel_layout_nb_channels(channel_layout); - - per_channel_size = size/chans_nb; - ref->audio->nb_samples = per_channel_size/sample_size; - - /* Set the number of bytes to traverse to reach next sample of a particular channel: - * For planar, this is simply the sample size. - * For packed, this is the number of samples * sample_size. - */ - for (i = 0; i < chans_nb; i++) - samples->linesize[i] = planar > 0 ? per_channel_size : sample_size; - memset(&samples->linesize[chans_nb], 0, (8-chans_nb) * sizeof(samples->linesize[0])); + AVFilterBufferRef *samplesref = NULL; + int linesize[8]; + uint8_t *data[8]; + int nb_channels = av_get_channel_layout_nb_channels(channel_layout); /* Calculate total buffer size, round to multiple of 16 to be SIMD friendly */ - bufsize = (size + 15)&~15; - buf = av_malloc(bufsize); - if (!buf) - goto fail; - - /* For planar, set the start point of each channel's data within the buffer - * For packed, set the start point of the entire buffer only - */ - samples->data[0] = buf; - if (buf && planar) { - for (i = 1; i < chans_nb; i++) { - step_size += per_channel_size; - samples->data[i] = buf + step_size; - } - } else { - for (i = 1; i < chans_nb; i++) - samples->data[i] = buf; - } - - memset(&samples->data[chans_nb], 0, (8-chans_nb) * sizeof(samples->data[0])); - - memcpy(ref->data, samples->data, sizeof(ref->data)); - memcpy(ref->linesize, samples->linesize, sizeof(ref->linesize)); + if (av_samples_alloc(data, linesize, + nb_channels, nb_samples, sample_fmt, + planar, 16) < 0) + return NULL; - return ref; + samplesref = + avfilter_get_audio_buffer_ref_from_arrays(data, linesize, perms, + nb_samples, sample_fmt, + channel_layout, planar); + if (!samplesref) { + av_free(data[0]); + return NULL; + } -fail: - if (ref) - av_free(ref->audio); - av_free(ref); - av_free(samples); - return NULL; + return samplesref; } void avfilter_default_start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref) @@ -210,7 +161,7 @@ void avfilter_default_filter_samples(AVFilterLink *inlink, AVFilterBufferRef *sa if (outlink) { outlink->out_buf = avfilter_default_get_audio_buffer(inlink, AV_PERM_WRITE, samplesref->format, - samplesref->audio->size, + samplesref->audio->nb_samples, samplesref->audio->channel_layout, samplesref->audio->planar); outlink->out_buf->pts = samplesref->pts; |