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pineappleEA
152
externals/ffmpeg/libavformat/fifo_test.c
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Executable file
152
externals/ffmpeg/libavformat/fifo_test.c
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/*
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* FIFO test pseudo-muxer
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* Copyright (c) 2016 Jan Sebechlebsky
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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 License
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* 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
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* GNU 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 License
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* along with FFmpeg; if not, write to the Free Software * Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include "libavutil/opt.h"
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#include "libavutil/time.h"
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#include "libavutil/avassert.h"
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#include "avformat.h"
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#include "url.h"
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/* Implementation of mock muxer to simulate real muxer failures */
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#define MAX_TST_PACKETS 128
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#define SLEEPTIME_50_MS 50000
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#define SLEEPTIME_10_MS 10000
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/* Implementation of mock muxer to simulate real muxer failures */
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/* This is structure of data sent in packets to
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* failing muxer */
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typedef struct FailingMuxerPacketData {
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int ret; /* return value of write_packet call*/
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int recover_after; /* set ret to zero after this number of recovery attempts */
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unsigned sleep_time; /* sleep for this long in write_packet to simulate long I/O operation */
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} FailingMuxerPacketData;
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typedef struct FailingMuxerContext {
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AVClass *class;
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int write_header_ret;
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int write_trailer_ret;
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/* If non-zero, summary of processed packets will be printed in deinit */
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int print_deinit_summary;
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int flush_count;
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int pts_written[MAX_TST_PACKETS];
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int pts_written_nr;
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} FailingMuxerContext;
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static int failing_write_header(AVFormatContext *avf)
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{
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FailingMuxerContext *ctx = avf->priv_data;
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return ctx->write_header_ret;
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}
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static int failing_write_packet(AVFormatContext *avf, AVPacket *pkt)
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{
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FailingMuxerContext *ctx = avf->priv_data;
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int ret = 0;
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if (!pkt) {
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ctx->flush_count++;
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} else {
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FailingMuxerPacketData *data = (FailingMuxerPacketData*) pkt->data;
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if (!data->recover_after) {
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data->ret = 0;
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} else {
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data->recover_after--;
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}
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ret = data->ret;
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if (data->sleep_time) {
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int64_t slept = 0;
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while (slept < data->sleep_time) {
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if (ff_check_interrupt(&avf->interrupt_callback))
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return AVERROR_EXIT;
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av_usleep(SLEEPTIME_10_MS);
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slept += SLEEPTIME_10_MS;
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}
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}
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if (!ret) {
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ctx->pts_written[ctx->pts_written_nr++] = pkt->pts;
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av_packet_unref(pkt);
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}
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}
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return ret;
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}
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static int failing_write_trailer(AVFormatContext *avf)
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{
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FailingMuxerContext *ctx = avf->priv_data;
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return ctx->write_trailer_ret;
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}
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static void failing_deinit(AVFormatContext *avf)
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{
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int i;
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FailingMuxerContext *ctx = avf->priv_data;
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if (!ctx->print_deinit_summary)
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return;
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printf("flush count: %d\n", ctx->flush_count);
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printf("pts seen nr: %d\n", ctx->pts_written_nr);
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printf("pts seen: ");
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for (i = 0; i < ctx->pts_written_nr; ++i ) {
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printf(i ? ",%d" : "%d", ctx->pts_written[i]);
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}
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printf("\n");
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}
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#define OFFSET(x) offsetof(FailingMuxerContext, x)
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static const AVOption options[] = {
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{"write_header_ret", "write_header() return value", OFFSET(write_header_ret),
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AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
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{"write_trailer_ret", "write_trailer() return value", OFFSET(write_trailer_ret),
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AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
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{"print_deinit_summary", "print summary when deinitializing muxer", OFFSET(print_deinit_summary),
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AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
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{NULL}
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};
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static const AVClass failing_muxer_class = {
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.class_name = "Fifo test muxer",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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AVOutputFormat ff_fifo_test_muxer = {
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.name = "fifo_test",
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.long_name = NULL_IF_CONFIG_SMALL("Fifo test muxer"),
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.priv_data_size = sizeof(FailingMuxerContext),
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.write_header = failing_write_header,
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.write_packet = failing_write_packet,
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.write_trailer = failing_write_trailer,
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.deinit = failing_deinit,
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.priv_class = &failing_muxer_class,
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.flags = AVFMT_NOFILE | AVFMT_ALLOW_FLUSH,
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};
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