130 lines
4.8 KiB
C
130 lines
4.8 KiB
C
/*
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* Copyright 2011 Stefano Sabatini | stefasab at gmail.com
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* libavcodec/libavfilter gluing utilities
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*/
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#include "avcodec.h"
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#include "libavutil/opt.h"
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int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src)
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{
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dst->pts = src->pts;
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dst->pos = av_frame_get_pkt_pos(src);
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dst->format = src->format;
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switch (dst->type) {
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case AVMEDIA_TYPE_VIDEO:
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dst->video->w = src->width;
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dst->video->h = src->height;
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dst->video->sample_aspect_ratio = src->sample_aspect_ratio;
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dst->video->interlaced = src->interlaced_frame;
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dst->video->top_field_first = src->top_field_first;
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dst->video->key_frame = src->key_frame;
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dst->video->pict_type = src->pict_type;
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break;
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case AVMEDIA_TYPE_AUDIO:
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dst->audio->sample_rate = src->sample_rate;
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dst->audio->channel_layout = src->channel_layout;
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break;
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default:
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return AVERROR(EINVAL);
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}
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return 0;
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}
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AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame,
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int perms)
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{
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AVFilterBufferRef *picref =
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avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize, perms,
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frame->width, frame->height,
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frame->format);
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if (!picref)
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return NULL;
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avfilter_copy_frame_props(picref, frame);
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return picref;
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}
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AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_frame(const AVFrame *frame,
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int perms)
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{
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AVFilterBufferRef *picref =
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avfilter_get_audio_buffer_ref_from_arrays((uint8_t **)frame->data, frame->linesize[0], perms,
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frame->nb_samples, frame->format,
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av_frame_get_channel_layout(frame));
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if (!picref)
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return NULL;
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avfilter_copy_frame_props(picref, frame);
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return picref;
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}
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int avfilter_fill_frame_from_audio_buffer_ref(AVFrame *frame,
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const AVFilterBufferRef *samplesref)
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{
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if (!samplesref || !samplesref->audio || !frame)
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return AVERROR(EINVAL);
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memcpy(frame->data, samplesref->data, sizeof(frame->data));
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memcpy(frame->linesize, samplesref->linesize, sizeof(frame->linesize));
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av_frame_set_pkt_pos(frame, samplesref->pos);
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frame->format = samplesref->format;
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frame->nb_samples = samplesref->audio->nb_samples;
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frame->pts = samplesref->pts;
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frame->sample_rate = samplesref->audio->sample_rate;
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frame->channel_layout = samplesref->audio->channel_layout;
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return 0;
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}
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int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
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const AVFilterBufferRef *picref)
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{
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if (!picref || !picref->video || !frame)
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return AVERROR(EINVAL);
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memcpy(frame->data, picref->data, sizeof(frame->data));
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memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
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av_frame_set_pkt_pos(frame, picref->pos);
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frame->interlaced_frame = picref->video->interlaced;
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frame->top_field_first = picref->video->top_field_first;
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frame->key_frame = picref->video->key_frame;
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frame->pict_type = picref->video->pict_type;
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frame->sample_aspect_ratio = picref->video->sample_aspect_ratio;
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frame->width = picref->video->w;
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frame->height = picref->video->h;
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frame->format = picref->format;
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frame->pts = picref->pts;
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return 0;
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}
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int avfilter_fill_frame_from_buffer_ref(AVFrame *frame,
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const AVFilterBufferRef *ref)
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{
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if (!ref)
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return AVERROR(EINVAL);
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return ref->video ? avfilter_fill_frame_from_video_buffer_ref(frame, ref)
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: avfilter_fill_frame_from_audio_buffer_ref(frame, ref);
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}
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