diff options
Diffstat (limited to 'libavfilter/avcodec.c')
-rw-r--r-- | libavfilter/avcodec.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/libavfilter/avcodec.c b/libavfilter/avcodec.c new file mode 100644 index 0000000..6d3aa59 --- /dev/null +++ b/libavfilter/avcodec.c @@ -0,0 +1,129 @@ +/* + * Copyright 2011 Stefano Sabatini | stefasab at gmail.com + * + * This file is part of FFmpeg. + * + * 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. + * + * 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * libavcodec/libavfilter gluing utilities + */ + +#include "avcodec.h" +#include "libavutil/opt.h" + +int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src) +{ + dst->pts = src->pts; + dst->pos = av_frame_get_pkt_pos(src); + dst->format = src->format; + + switch (dst->type) { + case AVMEDIA_TYPE_VIDEO: + dst->video->w = src->width; + dst->video->h = src->height; + dst->video->sample_aspect_ratio = src->sample_aspect_ratio; + dst->video->interlaced = src->interlaced_frame; + dst->video->top_field_first = src->top_field_first; + dst->video->key_frame = src->key_frame; + dst->video->pict_type = src->pict_type; + break; + case AVMEDIA_TYPE_AUDIO: + dst->audio->sample_rate = src->sample_rate; + dst->audio->channel_layout = src->channel_layout; + break; + default: + return AVERROR(EINVAL); + } + + return 0; +} + +AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame, + int perms) +{ + AVFilterBufferRef *picref = + avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize, perms, + frame->width, frame->height, + frame->format); + if (!picref) + return NULL; + avfilter_copy_frame_props(picref, frame); + return picref; +} + +AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_frame(const AVFrame *frame, + int perms) +{ + AVFilterBufferRef *picref = + avfilter_get_audio_buffer_ref_from_arrays((uint8_t **)frame->data, frame->linesize[0], perms, + frame->nb_samples, frame->format, + av_frame_get_channel_layout(frame)); + if (!picref) + return NULL; + avfilter_copy_frame_props(picref, frame); + return picref; +} + +int avfilter_fill_frame_from_audio_buffer_ref(AVFrame *frame, + const AVFilterBufferRef *samplesref) +{ + if (!samplesref || !samplesref->audio || !frame) + return AVERROR(EINVAL); + + memcpy(frame->data, samplesref->data, sizeof(frame->data)); + memcpy(frame->linesize, samplesref->linesize, sizeof(frame->linesize)); + av_frame_set_pkt_pos(frame, samplesref->pos); + frame->format = samplesref->format; + frame->nb_samples = samplesref->audio->nb_samples; + frame->pts = samplesref->pts; + frame->sample_rate = samplesref->audio->sample_rate; + frame->channel_layout = samplesref->audio->channel_layout; + + return 0; +} + +int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame, + const AVFilterBufferRef *picref) +{ + if (!picref || !picref->video || !frame) + return AVERROR(EINVAL); + + memcpy(frame->data, picref->data, sizeof(frame->data)); + memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize)); + av_frame_set_pkt_pos(frame, picref->pos); + frame->interlaced_frame = picref->video->interlaced; + frame->top_field_first = picref->video->top_field_first; + frame->key_frame = picref->video->key_frame; + frame->pict_type = picref->video->pict_type; + frame->sample_aspect_ratio = picref->video->sample_aspect_ratio; + frame->width = picref->video->w; + frame->height = picref->video->h; + frame->format = picref->format; + frame->pts = picref->pts; + + return 0; +} + +int avfilter_fill_frame_from_buffer_ref(AVFrame *frame, + const AVFilterBufferRef *ref) +{ + if (!ref) + return AVERROR(EINVAL); + return ref->video ? avfilter_fill_frame_from_video_buffer_ref(frame, ref) + : avfilter_fill_frame_from_audio_buffer_ref(frame, ref); +} |