238 lines
6.6 KiB
C
238 lines
6.6 KiB
C
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/*
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* Copyright (c) 2001 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#define MAX_SLICES 8
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_IO_H
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#include <io.h>
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "libavcodec/avcodec.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/hash.h"
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#include "libavutil/bswap.h"
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static int header = 0;
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static int decode(AVCodecContext *dec_ctx, AVFrame *frame,
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AVPacket *pkt)
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{
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static uint64_t frame_cnt = 0;
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int ret;
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ret = avcodec_send_packet(dec_ctx, pkt);
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if (ret < 0) {
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fprintf(stderr, "Error sending a packet for decoding: %s\n", av_err2str(ret));
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return ret;
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}
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while (ret >= 0) {
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const AVPixFmtDescriptor *desc;
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char sum[AV_HASH_MAX_SIZE * 2 + 1];
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struct AVHashContext *hash;
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ret = avcodec_receive_frame(dec_ctx, frame);
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if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
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return 0;
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} else if (ret < 0) {
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fprintf(stderr, "Error during decoding: %s\n", av_err2str(ret));
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return ret;
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}
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if (!header) {
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printf(
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"#format: frame checksums\n"
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"#version: 2\n"
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"#hash: MD5\n"
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"#tb 0: 1/30\n"
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"#media_type 0: video\n"
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"#codec_id 0: rawvideo\n"
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"#dimensions 0: 352x288\n"
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"#sar 0: 128/117\n"
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"#stream#, dts, pts, duration, size, hash\n");
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header = 1;
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}
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desc = av_pix_fmt_desc_get(dec_ctx->pix_fmt);
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if ((ret = av_hash_alloc(&hash, "md5")) < 0) {
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return ret;
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}
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av_hash_init(hash);
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for (int i = 0; i < frame->height; i++)
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av_hash_update(hash, &frame->data[0][i * frame->linesize[0]], frame->width);
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for (int i = 0; i < frame->height >> desc->log2_chroma_h; i++)
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av_hash_update(hash, &frame->data[1][i * frame->linesize[1]], frame->width >> desc->log2_chroma_w);
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for (int i = 0; i < frame->height >> desc->log2_chroma_h; i++)
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av_hash_update(hash, &frame->data[2][i * frame->linesize[2]], frame->width >> desc->log2_chroma_w);
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av_hash_final_hex(hash, sum, av_hash_get_size(hash) * 2 + 1);
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printf("0, %10"PRId64", %10"PRId64", 1, %8d, %s\n",
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frame_cnt, frame_cnt,
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(frame->width * frame->height + 2 * (frame->height >> desc->log2_chroma_h) * (frame->width >> desc->log2_chroma_w)), sum);
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frame_cnt += 1;
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av_hash_freep(&hash);
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}
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return 0;
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}
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int main(int argc, char **argv)
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{
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const AVCodec *codec = NULL;
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AVCodecContext *c = NULL;
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AVFrame *frame = NULL;
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unsigned int threads;
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AVPacket *pkt;
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FILE *file = NULL;
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char * nal = NULL;
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int nals = 0, ret = 0;
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char *p;
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if (argc < 3) {
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fprintf(stderr, "Usage: %s <threads> <input file>\n", argv[0]);
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return -1;
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}
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if (!(threads = strtoul(argv[1], NULL, 0)))
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threads = 1;
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else if (threads > MAX_SLICES)
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threads = MAX_SLICES;
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#ifdef _WIN32
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setmode(fileno(stdout), O_BINARY);
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#endif
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if (!(pkt = av_packet_alloc())) {
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return -1;
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}
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nal = av_malloc(MAX_SLICES * UINT16_MAX + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!nal)
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goto err;
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p = nal;
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if (!(codec = avcodec_find_decoder(AV_CODEC_ID_H264))) {
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fprintf(stderr, "Codec not found\n");
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ret = -1;
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goto err;
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}
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if (!(c = avcodec_alloc_context3(codec))) {
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fprintf(stderr, "Could not allocate video codec context\n");
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ret = -1;
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goto err;
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}
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c->width = 352;
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c->height = 288;
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c->flags2 |= AV_CODEC_FLAG2_CHUNKS;
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c->thread_type = FF_THREAD_SLICE;
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c->thread_count = threads;
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if ((ret = avcodec_open2(c, codec, NULL)) < 0) {
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fprintf(stderr, "Could not open codec\n");
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goto err;
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}
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#if HAVE_THREADS
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if (c->active_thread_type != FF_THREAD_SLICE) {
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fprintf(stderr, "Couldn't activate slice threading: %d\n", c->active_thread_type);
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ret = -1;
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goto err;
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}
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#else
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fprintf(stderr, "WARN: not using threads, only checking decoding slice NALUs\n");
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#endif
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if (!(frame = av_frame_alloc())) {
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fprintf(stderr, "Could not allocate video frame\n");
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ret = -1;
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goto err;
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}
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if (!(file = fopen(argv[2], "rb"))) {
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fprintf(stderr, "Couldn't open NALU file: %s\n", argv[2]);
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ret = -1;
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goto err;
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}
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while(1) {
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uint16_t size = 0;
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size_t ret = fread(&size, 1, sizeof(uint16_t), file);
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if (ret != sizeof(uint16_t))
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break;
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size = av_be2ne16(size);
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ret = fread(p, 1, size, file);
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if (ret != size) {
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perror("Couldn't read data");
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goto err;
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}
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p += ret;
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if (++nals >= threads) {
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int decret = 0;
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pkt->data = nal;
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pkt->size = p - nal;
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if ((decret = decode(c, frame, pkt)) < 0) {
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goto err;
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}
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memset(nal, 0, MAX_SLICES * UINT16_MAX + AV_INPUT_BUFFER_PADDING_SIZE);
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nals = 0;
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p = nal;
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}
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}
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if (nals) {
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pkt->data = nal;
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pkt->size = p - nal;
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if ((ret = decode(c, frame, pkt)) < 0) {
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goto err;
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}
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}
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ret = decode(c, frame, NULL);
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err:
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if (nal)
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av_free(nal);
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if (file)
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fclose(file);
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av_frame_free(&frame);
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avcodec_free_context(&c);
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av_packet_free(&pkt);
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return ret;
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}
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