/* * Copyright Stefano Sabatini <stefasab gmail com> * Copyright Anton Khirnov <anton khirnov net> * Copyright Michael Niedermayer <michaelni gmx at> * * 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 */ #include "libavutil/channel_layout.h" #include "libavutil/avassert.h" #include "libavutil/common.h" #include "libavutil/imgutils.h" #include "libavutil/internal.h" #include "libavcodec/avcodec.h" #include "avfilter.h" #include "internal.h" #include "audio.h" #include "avcodec.h" #include "version.h" #if FF_API_AVFILTERBUFFER void ff_avfilter_default_free_buffer(AVFilterBuffer *ptr) { if (ptr->extended_data != ptr->data) av_freep(&ptr->extended_data); av_freep(&ptr->data[0]); av_free(ptr); } static int copy_video_props(AVFilterBufferRefVideoProps *dst, AVFilterBufferRefVideoProps *src) { *dst = *src; if (src->qp_table) { int qsize = src->qp_table_size; dst->qp_table = av_malloc(qsize); if (!dst->qp_table) { av_log(NULL, AV_LOG_ERROR, "Failed to allocate qp_table\n"); dst->qp_table_size = 0; return AVERROR(ENOMEM); } memcpy(dst->qp_table, src->qp_table, qsize); } return 0; } AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask) { AVFilterBufferRef *ret = av_malloc(sizeof(AVFilterBufferRef)); if (!ret) return NULL; *ret = *ref; ret->metadata = NULL; av_dict_copy(&ret->metadata, ref->metadata, 0); if (ref->type == AVMEDIA_TYPE_VIDEO) { ret->video = av_malloc(sizeof(AVFilterBufferRefVideoProps)); if (!ret->video) { av_free(ret); return NULL; } copy_video_props(ret->video, ref->video); ret->extended_data = ret->data; } else if (ref->type == AVMEDIA_TYPE_AUDIO) { ret->audio = av_malloc(sizeof(AVFilterBufferRefAudioProps)); if (!ret->audio) { av_free(ret); return NULL; } *ret->audio = *ref->audio; if (ref->extended_data && ref->extended_data != ref->data) { int nb_channels = av_get_channel_layout_nb_channels(ref->audio->channel_layout); if (!(ret->extended_data = av_malloc_array(sizeof(*ret->extended_data), nb_channels))) { av_freep(&ret->audio); av_freep(&ret); return NULL; } memcpy(ret->extended_data, ref->extended_data, sizeof(*ret->extended_data) * nb_channels); } else ret->extended_data = ret->data; } ret->perms &= pmask; ret->buf->refcount ++; return ret; } void avfilter_unref_buffer(AVFilterBufferRef *ref) { if (!ref) return; av_assert0(ref->buf->refcount > 0); if (!(--ref->buf->refcount)) ref->buf->free(ref->buf); if (ref->extended_data != ref->data) av_freep(&ref->extended_data); if (ref->video) av_freep(&ref->video->qp_table); av_freep(&ref->video); av_freep(&ref->audio); av_dict_free(&ref->metadata); av_free(ref); } void avfilter_unref_bufferp(AVFilterBufferRef **ref) { FF_DISABLE_DEPRECATION_WARNINGS avfilter_unref_buffer(*ref); FF_ENABLE_DEPRECATION_WARNINGS *ref = NULL; } 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; av_dict_free(&dst->metadata); av_dict_copy(&dst->metadata, av_frame_get_metadata(src), 0); 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; } void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, const AVFilterBufferRef *src) { // copy common properties dst->pts = src->pts; dst->pos = src->pos; switch (src->type) { case AVMEDIA_TYPE_VIDEO: { if (dst->video->qp_table) av_freep(&dst->video->qp_table); copy_video_props(dst->video, src->video); break; } case AVMEDIA_TYPE_AUDIO: *dst->audio = *src->audio; break; default: break; } av_dict_free(&dst->metadata); av_dict_copy(&dst->metadata, src->metadata, 0); } #endif /* FF_API_AVFILTERBUFFER */