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0c6e5f321b
AVCodec is only ever used as an incomplete type (i.e. via a pointer to an AVCodec) in avformat.h and it is not really part of the core of avformat.h or libavformat; almost none of our internal users make use of it (and none make use of hwcontext.h, which is implicitly included). So switch to use struct AVCodec, but continue to include codec.h for external users for compatibility. Also, do the same for AVFrame and frame.h, which is implicitly included by codec.h (via lavu/hwcontext.h). Also, remove an unnecessary inclusion of <time.h>. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
301 lines
11 KiB
C
301 lines
11 KiB
C
/*
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* Image format
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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* Copyright (c) 2004 Michael Niedermayer
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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 <time.h>
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#include "config_components.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/avstring.h"
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#include "libavutil/dict.h"
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#include "libavutil/log.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/time_internal.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "internal.h"
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#include "img2.h"
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#include "mux.h"
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typedef struct VideoMuxData {
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const AVClass *class; /**< Class for private options. */
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int start_img_number;
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int img_number;
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int split_planes; /**< use independent file for each Y, U, V plane */
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char tmp[4][1024];
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char target[4][1024];
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int update;
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int use_strftime;
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int frame_pts;
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const char *muxer;
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int use_rename;
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AVDictionary *protocol_opts;
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} VideoMuxData;
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static int write_header(AVFormatContext *s)
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{
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VideoMuxData *img = s->priv_data;
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AVStream *st = s->streams[0];
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(st->codecpar->format);
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if (st->codecpar->codec_id == AV_CODEC_ID_GIF) {
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img->muxer = "gif";
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} else if (st->codecpar->codec_id == AV_CODEC_ID_FITS) {
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img->muxer = "fits";
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} else if (st->codecpar->codec_id == AV_CODEC_ID_AV1) {
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img->muxer = "avif";
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} else if (st->codecpar->codec_id == AV_CODEC_ID_RAWVIDEO) {
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const char *str = strrchr(s->url, '.');
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img->split_planes = str
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&& !av_strcasecmp(str + 1, "y")
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&& s->nb_streams == 1
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&& desc
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&&(desc->flags & AV_PIX_FMT_FLAG_PLANAR)
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&& desc->nb_components >= 3;
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}
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img->img_number = img->start_img_number;
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return 0;
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}
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static int write_muxed_file(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
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{
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VideoMuxData *img = s->priv_data;
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AVCodecParameters *par = s->streams[pkt->stream_index]->codecpar;
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AVStream *st;
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AVPacket *const pkt2 = ffformatcontext(s)->pkt;
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AVFormatContext *fmt = NULL;
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int ret;
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/* URL is not used directly as we are overriding the IO context later. */
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ret = avformat_alloc_output_context2(&fmt, NULL, img->muxer, s->url);
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if (ret < 0)
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return ret;
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st = avformat_new_stream(fmt, NULL);
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if (!st) {
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ret = AVERROR(ENOMEM);
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goto out;
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}
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st->id = pkt->stream_index;
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fmt->pb = pb;
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ret = av_packet_ref(pkt2, pkt);
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if (ret < 0)
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goto out;
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pkt2->stream_index = 0;
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if ((ret = avcodec_parameters_copy(st->codecpar, par)) < 0 ||
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(ret = avformat_write_header(fmt, NULL)) < 0 ||
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(ret = av_interleaved_write_frame(fmt, pkt2)) < 0 ||
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(ret = av_write_trailer(fmt))) {}
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av_packet_unref(pkt2);
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out:
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avformat_free_context(fmt);
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return ret;
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}
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static int write_packet_pipe(AVFormatContext *s, AVPacket *pkt)
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{
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VideoMuxData *img = s->priv_data;
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if (img->muxer) {
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int ret = write_muxed_file(s, s->pb, pkt);
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if (ret < 0)
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return ret;
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} else {
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avio_write(s->pb, pkt->data, pkt->size);
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}
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img->img_number++;
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return 0;
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}
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static int write_and_close(AVFormatContext *s, AVIOContext **pb, const unsigned char *buf, int size)
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{
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avio_write(*pb, buf, size);
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avio_flush(*pb);
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return ff_format_io_close(s, pb);
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}
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static int write_packet(AVFormatContext *s, AVPacket *pkt)
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{
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VideoMuxData *img = s->priv_data;
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AVIOContext *pb[4] = {0};
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char filename[1024];
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AVCodecParameters *par = s->streams[pkt->stream_index]->codecpar;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(par->format);
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int ret, i;
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int nb_renames = 0;
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AVDictionary *options = NULL;
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if (img->update) {
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av_strlcpy(filename, s->url, sizeof(filename));
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} else if (img->use_strftime) {
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time_t now0;
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struct tm *tm, tmpbuf;
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time(&now0);
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tm = localtime_r(&now0, &tmpbuf);
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if (!strftime(filename, sizeof(filename), s->url, tm)) {
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av_log(s, AV_LOG_ERROR, "Could not get frame filename with strftime\n");
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return AVERROR(EINVAL);
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}
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} else if (img->frame_pts) {
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if (av_get_frame_filename2(filename, sizeof(filename), s->url, pkt->pts, AV_FRAME_FILENAME_FLAGS_MULTIPLE) < 0) {
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av_log(s, AV_LOG_ERROR, "Cannot write filename by pts of the frames.");
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return AVERROR(EINVAL);
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}
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} else if (av_get_frame_filename2(filename, sizeof(filename), s->url,
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img->img_number,
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AV_FRAME_FILENAME_FLAGS_MULTIPLE) < 0) {
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if (img->img_number == img->start_img_number) {
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av_log(s, AV_LOG_WARNING, "The specified filename '%s' does not contain an image sequence pattern or a pattern is invalid.\n", s->url);
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av_log(s, AV_LOG_WARNING,
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"Use a pattern such as %%03d for an image sequence or "
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"use the -update option (with -frames:v 1 if needed) to write a single image.\n");
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av_strlcpy(filename, s->url, sizeof(filename));
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} else {
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av_log(s, AV_LOG_ERROR, "Cannot write more than one file with the same name. Are you missing the -update option or a sequence pattern?\n");
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return AVERROR(EINVAL);
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}
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}
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for (i = 0; i < 4; i++) {
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av_dict_copy(&options, img->protocol_opts, 0);
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snprintf(img->tmp[i], sizeof(img->tmp[i]), "%s.tmp", filename);
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av_strlcpy(img->target[i], filename, sizeof(img->target[i]));
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if (s->io_open(s, &pb[i], img->use_rename ? img->tmp[i] : filename, AVIO_FLAG_WRITE, &options) < 0) {
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av_log(s, AV_LOG_ERROR, "Could not open file : %s\n", img->use_rename ? img->tmp[i] : filename);
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ret = AVERROR(EIO);
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goto fail;
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}
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if (options) {
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av_log(s, AV_LOG_ERROR, "Could not recognize some protocol options\n");
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ret = AVERROR(EINVAL);
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goto fail;
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}
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if (!img->split_planes || i+1 >= desc->nb_components)
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break;
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filename[strlen(filename) - 1] = "UVAx"[i];
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}
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if (img->use_rename)
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nb_renames = i + 1;
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if (img->split_planes) {
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int ysize = par->width * par->height;
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int usize = AV_CEIL_RSHIFT(par->width, desc->log2_chroma_w) * AV_CEIL_RSHIFT(par->height, desc->log2_chroma_h);
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if (desc->comp[0].depth >= 9) {
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ysize *= 2;
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usize *= 2;
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}
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if ((ret = write_and_close(s, &pb[0], pkt->data , ysize)) < 0 ||
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(ret = write_and_close(s, &pb[1], pkt->data + ysize , usize)) < 0 ||
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(ret = write_and_close(s, &pb[2], pkt->data + ysize + usize, usize)) < 0)
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goto fail;
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if (desc->nb_components > 3)
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ret = write_and_close(s, &pb[3], pkt->data + ysize + 2*usize, ysize);
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} else if (img->muxer) {
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if ((ret = write_muxed_file(s, pb[0], pkt)) < 0)
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goto fail;
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ret = ff_format_io_close(s, &pb[0]);
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} else {
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ret = write_and_close(s, &pb[0], pkt->data, pkt->size);
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}
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if (ret < 0)
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goto fail;
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for (i = 0; i < nb_renames; i++) {
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int ret = ff_rename(img->tmp[i], img->target[i], s);
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if (ret < 0)
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return ret;
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}
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img->img_number++;
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return 0;
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fail:
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av_dict_free(&options);
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for (i = 0; i < FF_ARRAY_ELEMS(pb); i++)
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if (pb[i])
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ff_format_io_close(s, &pb[i]);
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return ret;
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}
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static int query_codec(enum AVCodecID id, int std_compliance)
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{
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int i;
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for (i = 0; ff_img_tags[i].id != AV_CODEC_ID_NONE; i++)
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if (ff_img_tags[i].id == id)
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return 1;
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// Anything really can be stored in img2
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return std_compliance < FF_COMPLIANCE_NORMAL;
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}
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#define OFFSET(x) offsetof(VideoMuxData, x)
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#define ENC AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption muxoptions[] = {
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{ "update", "continuously overwrite one file", OFFSET(update), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
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{ "start_number", "set first number in the sequence", OFFSET(start_img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC },
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{ "strftime", "use strftime for filename", OFFSET(use_strftime), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
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{ "frame_pts", "use current frame pts for filename", OFFSET(frame_pts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
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{ "atomic_writing", "write files atomically (using temporary files and renames)", OFFSET(use_rename), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, ENC },
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{ "protocol_opts", "specify protocol options for the opened files", OFFSET(protocol_opts), AV_OPT_TYPE_DICT, {0}, 0, 0, ENC },
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{ NULL },
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};
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#if CONFIG_IMAGE2_MUXER
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static const AVClass img2mux_class = {
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.class_name = "image2 muxer",
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.item_name = av_default_item_name,
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.option = muxoptions,
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.version = LIBAVUTIL_VERSION_INT,
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};
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const FFOutputFormat ff_image2_muxer = {
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.p.name = "image2",
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.p.long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
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.p.extensions = "bmp,dpx,exr,jls,jpeg,jpg,jxl,ljpg,pam,pbm,pcx,pfm,pgm,pgmyuv,phm,"
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"png,ppm,sgi,tga,tif,tiff,jp2,j2c,j2k,xwd,sun,ras,rs,im1,im8,"
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"im24,sunras,vbn,xbm,xface,pix,y,avif,qoi,hdr,wbmp",
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.priv_data_size = sizeof(VideoMuxData),
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.p.video_codec = AV_CODEC_ID_MJPEG,
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.write_header = write_header,
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.write_packet = write_packet,
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.query_codec = query_codec,
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.p.flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE,
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.p.priv_class = &img2mux_class,
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};
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#endif
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#if CONFIG_IMAGE2PIPE_MUXER
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const FFOutputFormat ff_image2pipe_muxer = {
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.p.name = "image2pipe",
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.p.long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
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.priv_data_size = sizeof(VideoMuxData),
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.p.video_codec = AV_CODEC_ID_MJPEG,
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.write_header = write_header,
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.write_packet = write_packet_pipe,
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.query_codec = query_codec,
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.p.flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS
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};
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#endif
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