235 lines
6.9 KiB
C
235 lines
6.9 KiB
C
/*
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* Copyright (c) 2004 Michael Niedermayer <[email protected]>
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*
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* The default get_buffer2() implementation
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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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#include <stdint.h>
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#include "libavutil/avassert.h"
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#include "libavutil/avutil.h"
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#include "libavutil/buffer.h"
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#include "libavutil/frame.h"
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//#include "libavutil/hwcontext.h"
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//#include "libavutil/imgutils.h"
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#include "libavutil/mem.h"
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#include "libavutil/samplefmt.h"
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#include "libavutil/version.h"
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#include "avcodec.h"
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#include "internal.h"
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#include "refstruct.h"
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#ifdef ANDROID_BUILD
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#include <sys/time.h>
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#define aml_print(fmt, ...) \
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do { \
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struct timespec ts; \
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clock_gettime(CLOCK_MONOTONIC_RAW, &ts); \
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printf("[%lld.%09ld]" fmt "\n",(long long)ts.tv_sec, ts.tv_nsec, ##__VA_ARGS__); \
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} while(0)
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#define ALOGD(fmt, ...) aml_print(fmt, ##__VA_ARGS__)
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#define ALOGI(fmt, ...) aml_print(fmt, ##__VA_ARGS__)
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#define ALOGW(fmt, ...) aml_print(fmt, ##__VA_ARGS__)
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#define ALOGE(fmt, ...) aml_print(fmt, ##__VA_ARGS__)
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#else
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#include <cutils/log.h>
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#endif
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typedef struct FramePool {
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/**
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* Pools for each data plane. For audio all the planes have the same size,
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* so only pools[0] is used.
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*/
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AVBufferPool *pools[4];
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/*
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* Pool parameters
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*/
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int format;
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int width, height;
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int stride_align[AV_NUM_DATA_POINTERS];
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int linesize[4];
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int planes;
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int channels;
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int samples;
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} FramePool;
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static void frame_pool_free(FFRefStructOpaque unused, void *obj)
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{
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FramePool *pool = obj;
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
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av_buffer_pool_uninit(&pool->pools[i]);
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}
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static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
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{
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FramePool *pool = avctx->internal->pool;
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int i, ret;
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if (pool && pool->format == frame->format) {
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if (avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
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pool->width == frame->width && pool->height == frame->height)
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return 0;
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if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
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pool->channels == frame->ch_layout.nb_channels &&
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frame->nb_samples == pool->samples)
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return 0;
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}
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pool = ff_refstruct_alloc_ext(sizeof(*pool), 0, NULL, frame_pool_free);
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if (!pool)
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return AVERROR(ENOMEM);
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switch (avctx->codec_type) {
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case AVMEDIA_TYPE_AUDIO: {
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ret = av_samples_get_buffer_size(&pool->linesize[0],
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frame->ch_layout.nb_channels,
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frame->nb_samples, frame->format, 0);
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if (ret < 0)
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goto fail;
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pool->pools[0] = av_buffer_pool_init(pool->linesize[0],
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CONFIG_MEMORY_POISONING ?
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NULL :
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av_buffer_allocz);
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if (!pool->pools[0]) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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pool->format = frame->format;
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pool->channels = frame->ch_layout.nb_channels;
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pool->samples = frame->nb_samples;
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pool->planes = av_sample_fmt_is_planar(pool->format) ? pool->channels : 1;
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break;
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}
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default: av_assert0(0);
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}
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ff_refstruct_unref(&avctx->internal->pool);
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avctx->internal->pool = pool;
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return 0;
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fail:
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ff_refstruct_unref(&pool);
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return ret;
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}
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static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
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{
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FramePool *pool = avctx->internal->pool;
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int planes = pool->planes;
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int i;
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frame->linesize[0] = pool->linesize[0];
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if (planes > AV_NUM_DATA_POINTERS) {
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frame->extended_data = av_calloc(planes, sizeof(*frame->extended_data));
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frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
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frame->extended_buf = av_calloc(frame->nb_extended_buf,
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sizeof(*frame->extended_buf));
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if (!frame->extended_data || !frame->extended_buf) {
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av_freep(&frame->extended_data);
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av_freep(&frame->extended_buf);
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return AVERROR(ENOMEM);
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}
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} else {
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frame->extended_data = frame->data;
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av_assert0(frame->nb_extended_buf == 0);
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}
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for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
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frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
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if (!frame->buf[i])
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goto fail;
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frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
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}
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for (i = 0; i < frame->nb_extended_buf; i++) {
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frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
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if (!frame->extended_buf[i])
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goto fail;
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frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
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}
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if (avctx->debug & FF_DEBUG_BUFFERS)
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av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
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return 0;
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fail:
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av_frame_unref(frame);
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return AVERROR(ENOMEM);
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}
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static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
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{
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FramePool *pool = s->internal->pool;
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int i;
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if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
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av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
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return -1;
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}
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memset(pic->data, 0, sizeof(pic->data));
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pic->extended_data = pic->data;
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for (i = 0; i < 4 && pool->pools[i]; i++) {
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pic->linesize[i] = pool->linesize[i];
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pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
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if (!pic->buf[i])
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goto fail;
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pic->data[i] = pic->buf[i]->data;
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}
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for (; i < AV_NUM_DATA_POINTERS; i++) {
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pic->data[i] = NULL;
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pic->linesize[i] = 0;
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}
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if (s->debug & FF_DEBUG_BUFFERS)
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av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
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return 0;
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fail:
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av_frame_unref(pic);
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return AVERROR(ENOMEM);
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}
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int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
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{
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int ret;
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if ((ret = update_frame_pool(avctx, frame)) < 0) {
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return ret;
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}
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switch (avctx->codec_type) {
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case AVMEDIA_TYPE_VIDEO:
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return video_get_buffer(avctx, frame);
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case AVMEDIA_TYPE_AUDIO:
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return audio_get_buffer(avctx, frame);
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default:
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return -1;
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}
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}
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