mirror of
https://github.com/FFmpeg/FFmpeg.git
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tools: add an AV_CODEC_CAP_ENCODER_RECON_FRAME test tool
This commit is contained in:
Anton Khirnov
parent
554c6d7cb1
commit
ea748c7a4d
2
Makefile
2
Makefile
@ -67,6 +67,8 @@ tools/target_io_dem_fuzzer$(EXESUF): tools/target_io_dem_fuzzer.o $(FF_DEP_LIBS)
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tools/enum_options$(EXESUF): ELIBS = $(FF_EXTRALIBS)
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tools/enum_options$(EXESUF): $(FF_DEP_LIBS)
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tools/enc_recon_frame_test$(EXESUF): $(FF_DEP_LIBS)
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tools/enc_recon_frame_test$(EXESUF): ELIBS = $(FF_EXTRALIBS)
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tools/scale_slice_test$(EXESUF): $(FF_DEP_LIBS)
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tools/scale_slice_test$(EXESUF): ELIBS = $(FF_EXTRALIBS)
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tools/sofa2wavs$(EXESUF): ELIBS = $(FF_EXTRALIBS)
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@ -1,4 +1,4 @@
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TOOLS = enum_options qt-faststart scale_slice_test trasher uncoded_frame
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TOOLS = enc_recon_frame_test enum_options qt-faststart scale_slice_test trasher uncoded_frame
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TOOLS-$(CONFIG_LIBMYSOFA) += sofa2wavs
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TOOLS-$(CONFIG_ZLIB) += cws2fws
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@ -17,6 +17,7 @@ tools/target_dem_fuzzer.o: tools/target_dem_fuzzer.c
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tools/target_io_dem_fuzzer.o: tools/target_dem_fuzzer.c
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$(COMPILE_C) -DIO_FLAT=0
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tools/enc_recon_frame_test$(EXESUF): tools/decode_simple.o
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tools/venc_data_dump$(EXESUF): tools/decode_simple.o
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tools/scale_slice_test$(EXESUF): tools/decode_simple.o
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393
tools/enc_recon_frame_test.c
Normal file
393
tools/enc_recon_frame_test.c
Normal file
@ -0,0 +1,393 @@
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/*
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* copyright (c) 2022 Anton Khirnov <anton@khirnov.net>
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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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/* A test for AV_CODEC_FLAG_RECON_FRAME
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* TODO: dump reconstructed frames to disk */
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "decode_simple.h"
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#include "libavutil/adler32.h"
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#include "libavutil/common.h"
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#include "libavutil/error.h"
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#include "libavutil/frame.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "libavformat/avformat.h"
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#include "libavcodec/avcodec.h"
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#include "libavcodec/codec.h"
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#include "libswscale/swscale.h"
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typedef struct FrameChecksum {
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int64_t ts;
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uint32_t checksum[4];
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} FrameChecksum;
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typedef struct PrivData {
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AVCodecContext *enc;
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AVCodecContext *dec;
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int64_t pts_in;
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AVPacket *pkt;
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AVFrame *frame, *frame_recon;
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struct SwsContext *scaler;
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FrameChecksum *checksums_decoded;
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size_t nb_checksums_decoded;
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FrameChecksum *checksums_recon;
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size_t nb_checksums_recon;
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} PrivData;
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static int frame_hash(FrameChecksum **pc, size_t *nb_c, int64_t ts,
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const AVFrame *frame)
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{
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FrameChecksum *c;
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int shift_h[4] = { 0 }, shift_v[4] = { 0 };
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c = av_realloc_array(*pc, *nb_c + 1, sizeof(*c));
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if (!c)
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return AVERROR(ENOMEM);
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*pc = c;
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(*nb_c)++;
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c += *nb_c - 1;
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memset(c, 0, sizeof(*c));
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av_pix_fmt_get_chroma_sub_sample(frame->format, &shift_h[1], &shift_v[1]);
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shift_h[2] = shift_h[1];
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shift_v[2] = shift_v[1];
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c->ts = ts;
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for (int p = 0; frame->data[p]; p++) {
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const uint8_t *data = frame->data[p];
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int linesize = av_image_get_linesize(frame->format, frame->width, p);
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uint32_t checksum = 0;
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for (int j = 0; j < frame->height >> shift_v[p]; j++) {
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checksum = av_adler32_update(checksum, data, linesize);
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data += frame->linesize[p];
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}
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c->checksum[p] = checksum;
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}
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return 0;
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}
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static int recon_frame_process(PrivData *pd, const AVPacket *pkt)
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{
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AVFrame *f = pd->frame_recon;
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int ret;
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ret = avcodec_receive_frame(pd->enc, f);
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if (ret < 0) {
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fprintf(stderr, "Error retrieving a reconstructed frame\n");
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return ret;
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}
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// the encoder's internal format (in which the reconsturcted frames are
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// exported) may be different from the user-facing pixel format
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if (f->format != pd->enc->pix_fmt) {
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if (!pd->scaler) {
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pd->scaler = sws_getContext(f->width, f->height, f->format,
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f->width, f->height, pd->enc->pix_fmt,
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SWS_BITEXACT, NULL, NULL, NULL);
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if (!pd->scaler)
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return AVERROR(ENOMEM);
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}
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ret = sws_scale_frame(pd->scaler, pd->frame, f);
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if (ret < 0) {
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fprintf(stderr, "Error converting pixel formats\n");
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return ret;
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}
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av_frame_unref(f);
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f = pd->frame;
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}
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ret = frame_hash(&pd->checksums_recon, &pd->nb_checksums_recon,
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pkt->pts, f);
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av_frame_unref(f);
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return 0;
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}
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static int process_frame(DecodeContext *dc, AVFrame *frame)
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{
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PrivData *pd = dc->opaque;
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int ret;
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if (!avcodec_is_open(pd->enc)) {
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if (!frame) {
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fprintf(stderr, "No input frames were decoded\n");
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return AVERROR_INVALIDDATA;
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}
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pd->enc->width = frame->width;
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pd->enc->height = frame->height;
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pd->enc->pix_fmt = frame->format;
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pd->enc->thread_count = dc->decoder->thread_count;
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pd->enc->thread_type = dc->decoder->thread_type;
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// real timestamps do not matter for this test, so we just
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// pretend the input is 25fps CFR to avoid any timestamp issues
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pd->enc->time_base = (AVRational){ 1, 25 };
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ret = avcodec_open2(pd->enc, NULL, NULL);
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if (ret < 0) {
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fprintf(stderr, "Error opening the encoder\n");
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return ret;
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}
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}
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if (frame) {
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frame->pts = pd->pts_in++;
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// avoid forcing coded frame type
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frame->pict_type = AV_PICTURE_TYPE_NONE;
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}
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ret = avcodec_send_frame(pd->enc, frame);
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if (ret < 0) {
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fprintf(stderr, "Error submitting a frame for encoding\n");
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return ret;
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}
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while (1) {
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AVPacket *pkt = pd->pkt;
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ret = avcodec_receive_packet(pd->enc, pkt);
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if (ret == AVERROR(EAGAIN))
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break;
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else if (ret == AVERROR_EOF)
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pkt = NULL;
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else if (ret < 0) {
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fprintf(stderr, "Error receiving a frame from the encoder\n");
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return ret;
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}
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if (pkt) {
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ret = recon_frame_process(pd, pkt);
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if (ret < 0)
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return ret;
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}
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if (!avcodec_is_open(pd->dec)) {
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if (!pkt) {
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fprintf(stderr, "No packets were received from the encoder\n");
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return AVERROR(EINVAL);
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}
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pd->dec->width = pd->enc->width;
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pd->dec->height = pd->enc->height;
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pd->dec->pix_fmt = pd->enc->pix_fmt;
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pd->dec->thread_count = dc->decoder->thread_count;
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pd->dec->thread_type = dc->decoder->thread_type;
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if (pd->enc->extradata_size) {
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pd->dec->extradata = av_memdup(pd->enc->extradata,
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pd->enc->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!pd->dec->extradata)
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return AVERROR(ENOMEM);
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}
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ret = avcodec_open2(pd->dec, NULL, NULL);
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if (ret < 0) {
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fprintf(stderr, "Error opening the decoder\n");
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return ret;
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}
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}
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ret = avcodec_send_packet(pd->dec, pkt);
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if (ret < 0) {
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fprintf(stderr, "Error sending a packet to decoder\n");
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return ret;
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}
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while (1) {
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ret = avcodec_receive_frame(pd->dec, pd->frame);
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if (ret == AVERROR(EAGAIN))
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break;
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else if (ret == AVERROR_EOF)
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return 0;
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else if (ret < 0) {
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fprintf(stderr, "Error receving a frame from decoder\n");
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return ret;
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}
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ret = frame_hash(&pd->checksums_decoded, &pd->nb_checksums_decoded,
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pd->frame->pts, pd->frame);
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av_frame_unref(pd->frame);
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if (ret < 0)
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return ret;
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}
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}
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return 0;
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}
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static int frame_checksum_compare(const void *a, const void *b)
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{
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const FrameChecksum *ca = a;
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const FrameChecksum *cb = b;
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if (ca->ts == cb->ts)
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return 0;
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return FFSIGN(ca->ts - cb->ts);
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}
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int main(int argc, char **argv)
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{
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PrivData pd;
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DecodeContext dc;
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const char *filename, *enc_name, *enc_opts, *thread_type = NULL, *nb_threads = NULL;
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const AVCodec *enc, *dec;
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int ret = 0, max_frames = 0;
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if (argc < 4) {
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fprintf(stderr,
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"Usage: %s <input file> <encoder> <encoder options> "
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"[<max frame count> [<thread count> <thread type>]\n",
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argv[0]);
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return 0;
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}
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filename = argv[1];
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enc_name = argv[2];
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enc_opts = argv[3];
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if (argc >= 5)
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max_frames = strtol(argv[4], NULL, 0);
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if (argc >= 6)
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nb_threads = argv[5];
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if (argc >= 7)
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thread_type = argv[6];
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memset(&dc, 0, sizeof(dc));
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memset(&pd, 0, sizeof(pd));
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enc = avcodec_find_encoder_by_name(enc_name);
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if (!enc) {
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fprintf(stderr, "No such encoder: %s\n", enc_name);
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return 1;
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}
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if (!(enc->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME)) {
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fprintf(stderr, "Encoder '%s' cannot ouput reconstructed frames\n",
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enc->name);
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return 1;
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}
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dec = avcodec_find_decoder(enc->id);
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if (!dec) {
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fprintf(stderr, "No decoder for: %s\n", avcodec_get_name(enc->id));
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return 1;
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}
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pd.enc = avcodec_alloc_context3(enc);
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if (!pd.enc) {
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fprintf(stderr, "Error allocating encoder\n");
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return 1;
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}
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ret = av_set_options_string(pd.enc, enc_opts, "=", ",");
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if (ret < 0) {
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fprintf(stderr, "Error setting encoder options\n");
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goto fail;
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}
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pd.enc->flags |= AV_CODEC_FLAG_RECON_FRAME | AV_CODEC_FLAG_BITEXACT;
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pd.dec = avcodec_alloc_context3(dec);
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if (!pd.dec) {
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fprintf(stderr, "Error allocating decoder\n");
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goto fail;
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}
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pd.dec->flags |= AV_CODEC_FLAG_BITEXACT;
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pd.dec->err_recognition |= AV_EF_CRCCHECK;
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pd.frame = av_frame_alloc();
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pd.frame_recon = av_frame_alloc();
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pd.pkt = av_packet_alloc();
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if (!pd.frame ||!pd.frame_recon || !pd.pkt) {
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ret = 1;
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goto fail;
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}
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ret = ds_open(&dc, filename, 0);
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if (ret < 0) {
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fprintf(stderr, "Error opening the file\n");
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goto fail;
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}
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dc.process_frame = process_frame;
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dc.opaque = &pd;
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dc.max_frames = max_frames;
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ret = av_dict_set(&dc.decoder_opts, "threads", nb_threads, 0);
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ret |= av_dict_set(&dc.decoder_opts, "thread_type", thread_type, 0);
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ret = ds_run(&dc);
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if (ret < 0)
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goto fail;
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if (pd.nb_checksums_decoded != pd.nb_checksums_recon) {
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fprintf(stderr, "Mismatching frame counts: recon=%zu decoded=%zu\n",
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pd.nb_checksums_recon, pd.nb_checksums_decoded);
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ret = 1;
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goto fail;
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}
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// reconstructed frames are in coded order, sort them by pts into presentation order
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qsort(pd.checksums_recon, pd.nb_checksums_recon, sizeof(*pd.checksums_recon),
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frame_checksum_compare);
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for (size_t i = 0; i < pd.nb_checksums_decoded; i++) {
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const FrameChecksum *d = &pd.checksums_decoded[i];
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const FrameChecksum *r = &pd.checksums_recon[i];
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for (int p = 0; p < FF_ARRAY_ELEMS(d->checksum); p++)
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if (d->checksum[p] != r->checksum[p]) {
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fprintf(stderr, "Checksum mismatch in frame ts=%"PRId64", plane %d\n",
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d->ts, p);
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ret = 1;
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goto fail;
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}
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}
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fprintf(stderr, "All %zu encoded frames match\n", pd.nb_checksums_decoded);
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fail:
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avcodec_free_context(&pd.enc);
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avcodec_free_context(&pd.dec);
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av_freep(&pd.checksums_decoded);
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av_freep(&pd.checksums_recon);
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av_frame_free(&pd.frame);
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av_frame_free(&pd.frame_recon);
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av_packet_free(&pd.pkt);
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ds_free(&dc);
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return !!ret;
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}
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