diff options
Diffstat (limited to 'libavfilter/defaults.c')
| -rw-r--r-- | libavfilter/defaults.c | 240 |
1 files changed, 107 insertions, 133 deletions
diff --git a/libavfilter/defaults.c b/libavfilter/defaults.c index 6d9003de37..e71041ecb4 100644 --- a/libavfilter/defaults.c +++ b/libavfilter/defaults.c @@ -2,30 +2,30 @@ * Filter layer - default implementations * Copyright (c) 2007 Bobby Bingham * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/avassert.h" #include "libavutil/audioconvert.h" #include "libavutil/imgutils.h" #include "libavutil/samplefmt.h" #include "avfilter.h" #include "internal.h" -/* TODO: buffer pool. see comment for avfilter_default_get_video_buffer() */ void ff_avfilter_default_free_buffer(AVFilterBuffer *ptr) { av_free(ptr->data[0]); @@ -39,10 +39,35 @@ AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, int per { int linesize[4]; 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)); + pool->refcount++; + return picref; + } + } + } else { + pool = link->pool = av_mallocz(sizeof(AVFilterPool)); + pool->refcount = 1; + } - // +2 is needed for swscaler, +16 to be SIMD-friendly - if (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, 32)) < 0) return NULL; picref = avfilter_get_video_buffer_ref_from_arrays(data, linesize, @@ -51,86 +76,45 @@ AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, int per av_free(data[0]); return NULL; } + memset(data[0], 128, i); + + picref->buf->priv = pool; + picref->buf->free = NULL; + pool->refcount++; return picref; } AVFilterBufferRef *avfilter_default_get_audio_buffer(AVFilterLink *link, int perms, - enum AVSampleFormat sample_fmt, int size, - uint64_t channel_layout, int planar) + int nb_samples) { - 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; + AVFilterBufferRef *samplesref = NULL; + int linesize[8] = {0}; + uint8_t *data[8] = {0}; + int ch, nb_channels = av_get_channel_layout_nb_channels(link->channel_layout); - sample_size = av_get_bytes_per_sample(sample_fmt); - 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])); + /* right now we don't support more than 8 channels */ + av_assert0(nb_channels <= 8); /* 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, + av_get_alt_sample_fmt(link->format, link->planar), + 16) < 0) + return NULL; - return ref; + for (ch = 1; link->planar && ch < nb_channels; ch++) + linesize[ch] = linesize[0]; + samplesref = + avfilter_get_audio_buffer_ref_from_arrays(data, linesize, perms, + nb_samples, link->format, + link->channel_layout, link->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) @@ -186,10 +170,8 @@ void avfilter_default_filter_samples(AVFilterLink *inlink, AVFilterBufferRef *sa outlink = inlink->dst->outputs[0]; if (outlink) { - outlink->out_buf = avfilter_default_get_audio_buffer(inlink, AV_PERM_WRITE, samplesref->format, - samplesref->audio->size, - samplesref->audio->channel_layout, - samplesref->audio->planar); + outlink->out_buf = avfilter_default_get_audio_buffer(inlink, AV_PERM_WRITE, + samplesref->audio->nb_samples); outlink->out_buf->pts = samplesref->pts; outlink->out_buf->audio->sample_rate = samplesref->audio->sample_rate; avfilter_filter_samples(outlink, avfilter_ref_buffer(outlink->out_buf, ~0)); @@ -200,68 +182,62 @@ void avfilter_default_filter_samples(AVFilterLink *inlink, AVFilterBufferRef *sa inlink->cur_buf = NULL; } -/** - * default config_link() implementation for output video links to simplify - * the implementation of one input one output video filters */ -int avfilter_default_config_output_link(AVFilterLink *link) +static void set_common_formats(AVFilterContext *ctx, AVFilterFormats *fmts, + enum AVMediaType type, int offin, int offout) { - if (link->src->input_count && link->src->inputs[0]) { - if (link->type == AVMEDIA_TYPE_VIDEO) { - link->w = link->src->inputs[0]->w; - link->h = link->src->inputs[0]->h; - link->time_base = link->src->inputs[0]->time_base; - } else if (link->type == AVMEDIA_TYPE_AUDIO) { - link->channel_layout = link->src->inputs[0]->channel_layout; - link->sample_rate = link->src->inputs[0]->sample_rate; - } - } else { - /* XXX: any non-simple filter which would cause this branch to be taken - * really should implement its own config_props() for this link. */ - return -1; + int i; + for (i = 0; i < ctx->input_count; i++) + if (ctx->inputs[i] && ctx->inputs[i]->type == type) + avfilter_formats_ref(fmts, + (AVFilterFormats **)((uint8_t *)ctx->inputs[i]+offout)); + + for (i = 0; i < ctx->output_count; i++) + if (ctx->outputs[i] && ctx->outputs[i]->type == type) + avfilter_formats_ref(fmts, + (AVFilterFormats **)((uint8_t *)ctx->outputs[i]+offin)); + + if (!fmts->refcount) { + av_free(fmts->formats); + av_free(fmts->refs); + av_free(fmts); } +} - return 0; +void avfilter_set_common_pixel_formats(AVFilterContext *ctx, AVFilterFormats *formats) +{ + set_common_formats(ctx, formats, AVMEDIA_TYPE_VIDEO, + offsetof(AVFilterLink, in_formats), + offsetof(AVFilterLink, out_formats)); } -/** - * A helper for query_formats() which sets all links to the same list of - * formats. If there are no links hooked to this filter, the list of formats is - * freed. - * - * FIXME: this will need changed for filters with a mix of pad types - * (video + audio, etc) - */ -void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats) +void avfilter_set_common_sample_formats(AVFilterContext *ctx, AVFilterFormats *formats) { - int count = 0, i; + set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO, + offsetof(AVFilterLink, in_formats), + offsetof(AVFilterLink, out_formats)); +} - for (i = 0; i < ctx->input_count; i++) { - if (ctx->inputs[i]) { - avfilter_formats_ref(formats, &ctx->inputs[i]->out_formats); - count++; - } - } - for (i = 0; i < ctx->output_count; i++) { - if (ctx->outputs[i]) { - avfilter_formats_ref(formats, &ctx->outputs[i]->in_formats); - count++; - } - } +void avfilter_set_common_channel_layouts(AVFilterContext *ctx, AVFilterFormats *formats) +{ + set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO, + offsetof(AVFilterLink, in_chlayouts), + offsetof(AVFilterLink, out_chlayouts)); +} - if (!count) { - av_free(formats->formats); - av_free(formats->refs); - av_free(formats); - } +void avfilter_set_common_packing_formats(AVFilterContext *ctx, AVFilterFormats *formats) +{ + set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO, + offsetof(AVFilterLink, in_packing), + offsetof(AVFilterLink, out_packing)); } int avfilter_default_query_formats(AVFilterContext *ctx) { - enum AVMediaType type = ctx->inputs && ctx->inputs [0] ? ctx->inputs [0]->type : - ctx->outputs && ctx->outputs[0] ? ctx->outputs[0]->type : - AVMEDIA_TYPE_VIDEO; + avfilter_set_common_pixel_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_VIDEO)); + avfilter_set_common_sample_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO)); + avfilter_set_common_channel_layouts(ctx, avfilter_make_all_channel_layouts()); + avfilter_set_common_packing_formats(ctx, avfilter_make_all_packing_formats()); - avfilter_set_common_formats(ctx, avfilter_all_formats(type)); return 0; } @@ -291,9 +267,7 @@ AVFilterBufferRef *avfilter_null_get_video_buffer(AVFilterLink *link, int perms, } AVFilterBufferRef *avfilter_null_get_audio_buffer(AVFilterLink *link, int perms, - enum AVSampleFormat sample_fmt, int size, - uint64_t channel_layout, int packed) + int nb_samples) { - return avfilter_get_audio_buffer(link->dst->outputs[0], perms, sample_fmt, - size, channel_layout, packed); + return avfilter_get_audio_buffer(link->dst->outputs[0], perms, nb_samples); } |