mirror of https://git.ffmpeg.org/ffmpeg.git
1386 lines
44 KiB
C
1386 lines
44 KiB
C
/*
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* muxing functions for use within FFmpeg
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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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 "avformat.h"
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#include "internal.h"
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#include "libavcodec/internal.h"
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#include "libavutil/opt.h"
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#include "libavutil/dict.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/timestamp.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/internal.h"
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#include "libavutil/mathematics.h"
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/**
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* @file
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* muxing functions for use within libavformat
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*/
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/* fraction handling */
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/**
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* f = val + (num / den) + 0.5.
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*
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* 'num' is normalized so that it is such as 0 <= num < den.
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*
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* @param f fractional number
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* @param val integer value
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* @param num must be >= 0
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* @param den must be >= 1
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*/
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static void frac_init(FFFrac *f, int64_t val, int64_t num, int64_t den)
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{
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num += (den >> 1);
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if (num >= den) {
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val += num / den;
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num = num % den;
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}
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f->val = val;
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f->num = num;
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f->den = den;
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}
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/**
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* Fractional addition to f: f = f + (incr / f->den).
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*
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* @param f fractional number
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* @param incr increment, can be positive or negative
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*/
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static void frac_add(FFFrac *f, int64_t incr)
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{
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int64_t num, den;
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num = f->num + incr;
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den = f->den;
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if (num < 0) {
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f->val += num / den;
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num = num % den;
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if (num < 0) {
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num += den;
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f->val--;
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}
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} else if (num >= den) {
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f->val += num / den;
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num = num % den;
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}
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f->num = num;
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}
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AVRational ff_choose_timebase(AVFormatContext *s, AVStream *st, int min_precision)
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{
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AVRational q;
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int j;
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q = st->time_base;
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for (j=2; j<14; j+= 1+(j>2))
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while (q.den / q.num < min_precision && q.num % j == 0)
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q.num /= j;
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while (q.den / q.num < min_precision && q.den < (1<<24))
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q.den <<= 1;
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return q;
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}
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enum AVChromaLocation ff_choose_chroma_location(AVFormatContext *s, AVStream *st)
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{
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AVCodecParameters *par = st->codecpar;
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const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(par->format);
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if (par->chroma_location != AVCHROMA_LOC_UNSPECIFIED)
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return par->chroma_location;
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if (pix_desc) {
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if (pix_desc->log2_chroma_h == 0) {
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return AVCHROMA_LOC_TOPLEFT;
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} else if (pix_desc->log2_chroma_w == 1 && pix_desc->log2_chroma_h == 1) {
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if (par->field_order == AV_FIELD_UNKNOWN || par->field_order == AV_FIELD_PROGRESSIVE) {
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switch (par->codec_id) {
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case AV_CODEC_ID_MJPEG:
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case AV_CODEC_ID_MPEG1VIDEO: return AVCHROMA_LOC_CENTER;
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}
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}
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if (par->field_order == AV_FIELD_UNKNOWN || par->field_order != AV_FIELD_PROGRESSIVE) {
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switch (par->codec_id) {
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case AV_CODEC_ID_MPEG2VIDEO: return AVCHROMA_LOC_LEFT;
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}
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}
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}
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}
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return AVCHROMA_LOC_UNSPECIFIED;
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}
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int avformat_alloc_output_context2(AVFormatContext **avctx, ff_const59 AVOutputFormat *oformat,
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const char *format, const char *filename)
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{
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AVFormatContext *s = avformat_alloc_context();
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int ret = 0;
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*avctx = NULL;
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if (!s)
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goto nomem;
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if (!oformat) {
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if (format) {
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oformat = av_guess_format(format, NULL, NULL);
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if (!oformat) {
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av_log(s, AV_LOG_ERROR, "Requested output format '%s' is not a suitable output format\n", format);
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ret = AVERROR(EINVAL);
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goto error;
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}
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} else {
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oformat = av_guess_format(NULL, filename, NULL);
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if (!oformat) {
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ret = AVERROR(EINVAL);
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av_log(s, AV_LOG_ERROR, "Unable to find a suitable output format for '%s'\n",
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filename);
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goto error;
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}
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}
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}
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s->oformat = oformat;
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if (s->oformat->priv_data_size > 0) {
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s->priv_data = av_mallocz(s->oformat->priv_data_size);
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if (!s->priv_data)
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goto nomem;
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if (s->oformat->priv_class) {
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*(const AVClass**)s->priv_data= s->oformat->priv_class;
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av_opt_set_defaults(s->priv_data);
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}
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} else
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s->priv_data = NULL;
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if (filename) {
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#if FF_API_FORMAT_FILENAME
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FF_DISABLE_DEPRECATION_WARNINGS
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av_strlcpy(s->filename, filename, sizeof(s->filename));
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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if (!(s->url = av_strdup(filename)))
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goto nomem;
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}
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*avctx = s;
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return 0;
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nomem:
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av_log(s, AV_LOG_ERROR, "Out of memory\n");
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ret = AVERROR(ENOMEM);
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error:
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avformat_free_context(s);
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return ret;
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}
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static int validate_codec_tag(AVFormatContext *s, AVStream *st)
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{
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const AVCodecTag *avctag;
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int n;
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enum AVCodecID id = AV_CODEC_ID_NONE;
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int64_t tag = -1;
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/**
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* Check that tag + id is in the table
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* If neither is in the table -> OK
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* If tag is in the table with another id -> FAIL
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* If id is in the table with another tag -> FAIL unless strict < normal
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*/
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for (n = 0; s->oformat->codec_tag[n]; n++) {
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avctag = s->oformat->codec_tag[n];
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while (avctag->id != AV_CODEC_ID_NONE) {
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if (avpriv_toupper4(avctag->tag) == avpriv_toupper4(st->codecpar->codec_tag)) {
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id = avctag->id;
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if (id == st->codecpar->codec_id)
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return 1;
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}
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if (avctag->id == st->codecpar->codec_id)
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tag = avctag->tag;
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avctag++;
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}
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}
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if (id != AV_CODEC_ID_NONE)
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return 0;
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if (tag >= 0 && (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL))
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return 0;
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return 1;
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}
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static int init_muxer(AVFormatContext *s, AVDictionary **options)
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{
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int ret = 0, i;
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AVStream *st;
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AVDictionary *tmp = NULL;
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AVCodecParameters *par = NULL;
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const AVOutputFormat *of = s->oformat;
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const AVCodecDescriptor *desc;
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AVDictionaryEntry *e;
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if (options)
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av_dict_copy(&tmp, *options, 0);
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if ((ret = av_opt_set_dict(s, &tmp)) < 0)
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goto fail;
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if (s->priv_data && s->oformat->priv_class && *(const AVClass**)s->priv_data==s->oformat->priv_class &&
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(ret = av_opt_set_dict2(s->priv_data, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
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goto fail;
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#if FF_API_FORMAT_FILENAME
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FF_DISABLE_DEPRECATION_WARNINGS
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if (!s->url && !(s->url = av_strdup(s->filename))) {
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FF_ENABLE_DEPRECATION_WARNINGS
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#else
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if (!s->url && !(s->url = av_strdup(""))) {
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#endif
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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#if FF_API_LAVF_AVCTX
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FF_DISABLE_DEPRECATION_WARNINGS
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if (s->nb_streams && s->streams[0]->codec->flags & AV_CODEC_FLAG_BITEXACT) {
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if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
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av_log(s, AV_LOG_WARNING,
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"The AVFormatContext is not in set to bitexact mode, only "
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"the AVCodecContext. If this is not intended, set "
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"AVFormatContext.flags |= AVFMT_FLAG_BITEXACT.\n");
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}
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}
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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// some sanity checks
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if (s->nb_streams == 0 && !(of->flags & AVFMT_NOSTREAMS)) {
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av_log(s, AV_LOG_ERROR, "No streams to mux were specified\n");
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ret = AVERROR(EINVAL);
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goto fail;
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}
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for (i = 0; i < s->nb_streams; i++) {
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st = s->streams[i];
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par = st->codecpar;
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#if FF_API_LAVF_AVCTX
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FF_DISABLE_DEPRECATION_WARNINGS
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if (st->codecpar->codec_type == AVMEDIA_TYPE_UNKNOWN &&
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st->codec->codec_type != AVMEDIA_TYPE_UNKNOWN) {
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av_log(s, AV_LOG_WARNING, "Using AVStream.codec to pass codec "
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"parameters to muxers is deprecated, use AVStream.codecpar "
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"instead.\n");
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ret = avcodec_parameters_from_context(st->codecpar, st->codec);
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if (ret < 0)
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goto fail;
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}
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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if (!st->time_base.num) {
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/* fall back on the default timebase values */
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if (par->codec_type == AVMEDIA_TYPE_AUDIO && par->sample_rate)
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avpriv_set_pts_info(st, 64, 1, par->sample_rate);
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else
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avpriv_set_pts_info(st, 33, 1, 90000);
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}
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switch (par->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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if (par->sample_rate <= 0) {
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av_log(s, AV_LOG_ERROR, "sample rate not set\n");
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ret = AVERROR(EINVAL);
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goto fail;
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}
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if (!par->block_align)
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par->block_align = par->channels *
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av_get_bits_per_sample(par->codec_id) >> 3;
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break;
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case AVMEDIA_TYPE_VIDEO:
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if ((par->width <= 0 || par->height <= 0) &&
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!(of->flags & AVFMT_NODIMENSIONS)) {
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av_log(s, AV_LOG_ERROR, "dimensions not set\n");
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ret = AVERROR(EINVAL);
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goto fail;
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}
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if (av_cmp_q(st->sample_aspect_ratio, par->sample_aspect_ratio)
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&& fabs(av_q2d(st->sample_aspect_ratio) - av_q2d(par->sample_aspect_ratio)) > 0.004*av_q2d(st->sample_aspect_ratio)
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) {
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if (st->sample_aspect_ratio.num != 0 &&
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st->sample_aspect_ratio.den != 0 &&
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par->sample_aspect_ratio.num != 0 &&
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par->sample_aspect_ratio.den != 0) {
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av_log(s, AV_LOG_ERROR, "Aspect ratio mismatch between muxer "
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"(%d/%d) and encoder layer (%d/%d)\n",
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st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
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par->sample_aspect_ratio.num,
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par->sample_aspect_ratio.den);
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|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
desc = avcodec_descriptor_get(par->codec_id);
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if (desc && desc->props & AV_CODEC_PROP_REORDER)
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|
st->internal->reorder = 1;
|
|
|
|
if (of->codec_tag) {
|
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if ( par->codec_tag
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&& par->codec_id == AV_CODEC_ID_RAWVIDEO
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&& ( av_codec_get_tag(of->codec_tag, par->codec_id) == 0
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|| av_codec_get_tag(of->codec_tag, par->codec_id) == MKTAG('r', 'a', 'w', ' '))
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&& !validate_codec_tag(s, st)) {
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|
// the current rawvideo encoding system ends up setting
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// the wrong codec_tag for avi/mov, we override it here
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|
par->codec_tag = 0;
|
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}
|
|
if (par->codec_tag) {
|
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if (!validate_codec_tag(s, st)) {
|
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const uint32_t otag = av_codec_get_tag(s->oformat->codec_tag, par->codec_id);
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|
av_log(s, AV_LOG_ERROR,
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"Tag %s incompatible with output codec id '%d' (%s)\n",
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av_fourcc2str(par->codec_tag), par->codec_id, av_fourcc2str(otag));
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|
ret = AVERROR_INVALIDDATA;
|
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goto fail;
|
|
}
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|
} else
|
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par->codec_tag = av_codec_get_tag(of->codec_tag, par->codec_id);
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|
}
|
|
|
|
if (par->codec_type != AVMEDIA_TYPE_ATTACHMENT)
|
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s->internal->nb_interleaved_streams++;
|
|
}
|
|
|
|
if (!s->priv_data && of->priv_data_size > 0) {
|
|
s->priv_data = av_mallocz(of->priv_data_size);
|
|
if (!s->priv_data) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
if (of->priv_class) {
|
|
*(const AVClass **)s->priv_data = of->priv_class;
|
|
av_opt_set_defaults(s->priv_data);
|
|
if ((ret = av_opt_set_dict2(s->priv_data, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
/* set muxer identification string */
|
|
if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
|
|
av_dict_set(&s->metadata, "encoder", LIBAVFORMAT_IDENT, 0);
|
|
} else {
|
|
av_dict_set(&s->metadata, "encoder", NULL, 0);
|
|
}
|
|
|
|
for (e = NULL; e = av_dict_get(s->metadata, "encoder-", e, AV_DICT_IGNORE_SUFFIX); ) {
|
|
av_dict_set(&s->metadata, e->key, NULL, 0);
|
|
}
|
|
|
|
if (options) {
|
|
av_dict_free(options);
|
|
*options = tmp;
|
|
}
|
|
|
|
if (s->oformat->init) {
|
|
if ((ret = s->oformat->init(s)) < 0) {
|
|
if (s->oformat->deinit)
|
|
s->oformat->deinit(s);
|
|
return ret;
|
|
}
|
|
return ret == 0;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
av_dict_free(&tmp);
|
|
return ret;
|
|
}
|
|
|
|
static int init_pts(AVFormatContext *s)
|
|
{
|
|
int i;
|
|
AVStream *st;
|
|
|
|
/* init PTS generation */
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
int64_t den = AV_NOPTS_VALUE;
|
|
st = s->streams[i];
|
|
|
|
switch (st->codecpar->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
den = (int64_t)st->time_base.num * st->codecpar->sample_rate;
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
den = (int64_t)st->time_base.num * st->time_base.den;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!st->internal->priv_pts)
|
|
st->internal->priv_pts = av_mallocz(sizeof(*st->internal->priv_pts));
|
|
if (!st->internal->priv_pts)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (den != AV_NOPTS_VALUE) {
|
|
if (den <= 0)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
frac_init(st->internal->priv_pts, 0, 0, den);
|
|
}
|
|
}
|
|
|
|
if (s->avoid_negative_ts < 0) {
|
|
av_assert2(s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO);
|
|
if (s->oformat->flags & (AVFMT_TS_NEGATIVE | AVFMT_NOTIMESTAMPS)) {
|
|
s->avoid_negative_ts = 0;
|
|
} else
|
|
s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void flush_if_needed(AVFormatContext *s)
|
|
{
|
|
if (s->pb && s->pb->error >= 0) {
|
|
if (s->flush_packets == 1 || s->flags & AVFMT_FLAG_FLUSH_PACKETS)
|
|
avio_flush(s->pb);
|
|
else if (s->flush_packets && !(s->oformat->flags & AVFMT_NOFILE))
|
|
avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
|
|
}
|
|
}
|
|
|
|
static void deinit_muxer(AVFormatContext *s)
|
|
{
|
|
if (s->oformat && s->oformat->deinit && s->internal->initialized)
|
|
s->oformat->deinit(s);
|
|
s->internal->initialized =
|
|
s->internal->streams_initialized = 0;
|
|
}
|
|
|
|
int avformat_init_output(AVFormatContext *s, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
|
|
if ((ret = init_muxer(s, options)) < 0)
|
|
return ret;
|
|
|
|
s->internal->initialized = 1;
|
|
s->internal->streams_initialized = ret;
|
|
|
|
if (s->oformat->init && ret) {
|
|
if ((ret = init_pts(s)) < 0)
|
|
return ret;
|
|
|
|
return AVSTREAM_INIT_IN_INIT_OUTPUT;
|
|
}
|
|
|
|
return AVSTREAM_INIT_IN_WRITE_HEADER;
|
|
}
|
|
|
|
int avformat_write_header(AVFormatContext *s, AVDictionary **options)
|
|
{
|
|
int ret = 0;
|
|
int already_initialized = s->internal->initialized;
|
|
int streams_already_initialized = s->internal->streams_initialized;
|
|
|
|
if (!already_initialized)
|
|
if ((ret = avformat_init_output(s, options)) < 0)
|
|
return ret;
|
|
|
|
if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
|
|
avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
|
|
if (s->oformat->write_header) {
|
|
ret = s->oformat->write_header(s);
|
|
if (ret >= 0 && s->pb && s->pb->error < 0)
|
|
ret = s->pb->error;
|
|
if (ret < 0)
|
|
goto fail;
|
|
flush_if_needed(s);
|
|
}
|
|
if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
|
|
avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_UNKNOWN);
|
|
|
|
if (!s->internal->streams_initialized) {
|
|
if ((ret = init_pts(s)) < 0)
|
|
goto fail;
|
|
}
|
|
|
|
return streams_already_initialized;
|
|
|
|
fail:
|
|
deinit_muxer(s);
|
|
return ret;
|
|
}
|
|
|
|
#define AV_PKT_FLAG_UNCODED_FRAME 0x2000
|
|
|
|
|
|
#if FF_API_COMPUTE_PKT_FIELDS2 && FF_API_LAVF_AVCTX
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
//FIXME merge with compute_pkt_fields
|
|
static int compute_muxer_pkt_fields(AVFormatContext *s, AVStream *st, AVPacket *pkt)
|
|
{
|
|
int delay = FFMAX(st->codecpar->video_delay, st->internal->avctx->max_b_frames > 0);
|
|
int num, den, i;
|
|
int frame_size;
|
|
|
|
if (!s->internal->missing_ts_warning &&
|
|
!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
|
|
(!(st->disposition & AV_DISPOSITION_ATTACHED_PIC) || (st->disposition & AV_DISPOSITION_TIMED_THUMBNAILS)) &&
|
|
(pkt->pts == AV_NOPTS_VALUE || pkt->dts == AV_NOPTS_VALUE)) {
|
|
av_log(s, AV_LOG_WARNING,
|
|
"Timestamps are unset in a packet for stream %d. "
|
|
"This is deprecated and will stop working in the future. "
|
|
"Fix your code to set the timestamps properly\n", st->index);
|
|
s->internal->missing_ts_warning = 1;
|
|
}
|
|
|
|
if (s->debug & FF_FDEBUG_TS)
|
|
av_log(s, AV_LOG_DEBUG, "compute_muxer_pkt_fields: pts:%s dts:%s cur_dts:%s b:%d size:%d st:%d\n",
|
|
av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(st->cur_dts), delay, pkt->size, pkt->stream_index);
|
|
|
|
if (pkt->duration < 0 && st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) {
|
|
av_log(s, AV_LOG_WARNING, "Packet with invalid duration %"PRId64" in stream %d\n",
|
|
pkt->duration, pkt->stream_index);
|
|
pkt->duration = 0;
|
|
}
|
|
|
|
/* duration field */
|
|
if (pkt->duration == 0) {
|
|
ff_compute_frame_duration(s, &num, &den, st, NULL, pkt);
|
|
if (den && num) {
|
|
pkt->duration = av_rescale(1, num * (int64_t)st->time_base.den * st->codec->ticks_per_frame, den * (int64_t)st->time_base.num);
|
|
}
|
|
}
|
|
|
|
if (pkt->pts == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && delay == 0)
|
|
pkt->pts = pkt->dts;
|
|
|
|
//XXX/FIXME this is a temporary hack until all encoders output pts
|
|
if ((pkt->pts == 0 || pkt->pts == AV_NOPTS_VALUE) && pkt->dts == AV_NOPTS_VALUE && !delay) {
|
|
static int warned;
|
|
if (!warned) {
|
|
av_log(s, AV_LOG_WARNING, "Encoder did not produce proper pts, making some up.\n");
|
|
warned = 1;
|
|
}
|
|
pkt->dts =
|
|
// pkt->pts= st->cur_dts;
|
|
pkt->pts = st->internal->priv_pts->val;
|
|
}
|
|
|
|
//calculate dts from pts
|
|
if (pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY) {
|
|
st->pts_buffer[0] = pkt->pts;
|
|
for (i = 1; i < delay + 1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
|
|
st->pts_buffer[i] = pkt->pts + (i - delay - 1) * pkt->duration;
|
|
for (i = 0; i<delay && st->pts_buffer[i] > st->pts_buffer[i + 1]; i++)
|
|
FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i + 1]);
|
|
|
|
pkt->dts = st->pts_buffer[0];
|
|
}
|
|
|
|
if (st->cur_dts && st->cur_dts != AV_NOPTS_VALUE &&
|
|
((!(s->oformat->flags & AVFMT_TS_NONSTRICT) &&
|
|
st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE &&
|
|
st->codecpar->codec_type != AVMEDIA_TYPE_DATA &&
|
|
st->cur_dts >= pkt->dts) || st->cur_dts > pkt->dts)) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"Application provided invalid, non monotonically increasing dts to muxer in stream %d: %s >= %s\n",
|
|
st->index, av_ts2str(st->cur_dts), av_ts2str(pkt->dts));
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts < pkt->dts) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"pts (%s) < dts (%s) in stream %d\n",
|
|
av_ts2str(pkt->pts), av_ts2str(pkt->dts),
|
|
st->index);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (s->debug & FF_FDEBUG_TS)
|
|
av_log(s, AV_LOG_DEBUG, "av_write_frame: pts2:%s dts2:%s\n",
|
|
av_ts2str(pkt->pts), av_ts2str(pkt->dts));
|
|
|
|
st->cur_dts = pkt->dts;
|
|
st->internal->priv_pts->val = pkt->dts;
|
|
|
|
/* update pts */
|
|
switch (st->codecpar->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
frame_size = (pkt->flags & AV_PKT_FLAG_UNCODED_FRAME) ?
|
|
(*(AVFrame **)pkt->data)->nb_samples :
|
|
av_get_audio_frame_duration(st->codec, pkt->size);
|
|
|
|
/* HACK/FIXME, we skip the initial 0 size packets as they are most
|
|
* likely equal to the encoder delay, but it would be better if we
|
|
* had the real timestamps from the encoder */
|
|
if (frame_size >= 0 && (pkt->size || st->internal->priv_pts->num != st->internal->priv_pts->den >> 1 || st->internal->priv_pts->val)) {
|
|
frac_add(st->internal->priv_pts, (int64_t)st->time_base.den * frame_size);
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
frac_add(st->internal->priv_pts, (int64_t)st->time_base.den * st->time_base.num);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
|
|
/**
|
|
* Shift timestamps and call muxer; the original pts/dts are not kept.
|
|
*
|
|
* FIXME: this function should NEVER get undefined pts/dts beside when the
|
|
* AVFMT_NOTIMESTAMPS is set.
|
|
* Those additional safety checks should be dropped once the correct checks
|
|
* are set in the callers.
|
|
*/
|
|
static int write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
int ret;
|
|
|
|
// If the timestamp offsetting below is adjusted, adjust
|
|
// ff_interleaved_peek similarly.
|
|
if (s->output_ts_offset) {
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int64_t offset = av_rescale_q(s->output_ts_offset, AV_TIME_BASE_Q, st->time_base);
|
|
|
|
if (pkt->dts != AV_NOPTS_VALUE)
|
|
pkt->dts += offset;
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
pkt->pts += offset;
|
|
}
|
|
|
|
if (s->avoid_negative_ts > 0) {
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int64_t offset = st->mux_ts_offset;
|
|
int64_t ts = s->internal->avoid_negative_ts_use_pts ? pkt->pts : pkt->dts;
|
|
|
|
if (s->internal->offset == AV_NOPTS_VALUE && ts != AV_NOPTS_VALUE &&
|
|
(ts < 0 || s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)) {
|
|
s->internal->offset = -ts;
|
|
s->internal->offset_timebase = st->time_base;
|
|
}
|
|
|
|
if (s->internal->offset != AV_NOPTS_VALUE && !offset) {
|
|
offset = st->mux_ts_offset =
|
|
av_rescale_q_rnd(s->internal->offset,
|
|
s->internal->offset_timebase,
|
|
st->time_base,
|
|
AV_ROUND_UP);
|
|
}
|
|
|
|
if (pkt->dts != AV_NOPTS_VALUE)
|
|
pkt->dts += offset;
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
pkt->pts += offset;
|
|
|
|
if (s->internal->avoid_negative_ts_use_pts) {
|
|
if (pkt->pts != AV_NOPTS_VALUE && pkt->pts < 0) {
|
|
av_log(s, AV_LOG_WARNING, "failed to avoid negative "
|
|
"pts %s in stream %d.\n"
|
|
"Try -avoid_negative_ts 1 as a possible workaround.\n",
|
|
av_ts2str(pkt->pts),
|
|
pkt->stream_index
|
|
);
|
|
}
|
|
} else {
|
|
av_assert2(pkt->dts == AV_NOPTS_VALUE || pkt->dts >= 0 || s->max_interleave_delta > 0);
|
|
if (pkt->dts != AV_NOPTS_VALUE && pkt->dts < 0) {
|
|
av_log(s, AV_LOG_WARNING,
|
|
"Packets poorly interleaved, failed to avoid negative "
|
|
"timestamp %s in stream %d.\n"
|
|
"Try -max_interleave_delta 0 as a possible workaround.\n",
|
|
av_ts2str(pkt->dts),
|
|
pkt->stream_index
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((pkt->flags & AV_PKT_FLAG_UNCODED_FRAME)) {
|
|
AVFrame **frame = (AVFrame **)pkt->data;
|
|
av_assert0(pkt->size == sizeof(*frame));
|
|
ret = s->oformat->write_uncoded_frame(s, pkt->stream_index, frame, 0);
|
|
} else {
|
|
ret = s->oformat->write_packet(s, pkt);
|
|
}
|
|
|
|
if (s->pb && ret >= 0) {
|
|
flush_if_needed(s);
|
|
if (s->pb->error < 0)
|
|
ret = s->pb->error;
|
|
}
|
|
|
|
if (ret >= 0)
|
|
s->streams[pkt->stream_index]->nb_frames++;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int check_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
if (pkt->stream_index < 0 || pkt->stream_index >= s->nb_streams) {
|
|
av_log(s, AV_LOG_ERROR, "Invalid packet stream index: %d\n",
|
|
pkt->stream_index);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (s->streams[pkt->stream_index]->codecpar->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
|
|
av_log(s, AV_LOG_ERROR, "Received a packet for an attachment stream.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int prepare_input_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
int ret;
|
|
|
|
ret = check_packet(s, pkt);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
#if !FF_API_COMPUTE_PKT_FIELDS2 || !FF_API_LAVF_AVCTX
|
|
/* sanitize the timestamps */
|
|
if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
|
|
/* when there is no reordering (so dts is equal to pts), but
|
|
* only one of them is set, set the other as well */
|
|
if (!st->internal->reorder) {
|
|
if (pkt->pts == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE)
|
|
pkt->pts = pkt->dts;
|
|
if (pkt->dts == AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE)
|
|
pkt->dts = pkt->pts;
|
|
}
|
|
|
|
/* check that the timestamps are set */
|
|
if (pkt->pts == AV_NOPTS_VALUE || pkt->dts == AV_NOPTS_VALUE) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"Timestamps are unset in a packet for stream %d\n", st->index);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* check that the dts are increasing (or at least non-decreasing,
|
|
* if the format allows it */
|
|
if (st->cur_dts != AV_NOPTS_VALUE &&
|
|
((!(s->oformat->flags & AVFMT_TS_NONSTRICT) && st->cur_dts >= pkt->dts) ||
|
|
st->cur_dts > pkt->dts)) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"Application provided invalid, non monotonically increasing "
|
|
"dts to muxer in stream %d: %" PRId64 " >= %" PRId64 "\n",
|
|
st->index, st->cur_dts, pkt->dts);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (pkt->pts < pkt->dts) {
|
|
av_log(s, AV_LOG_ERROR, "pts %" PRId64 " < dts %" PRId64 " in stream %d\n",
|
|
pkt->pts, pkt->dts, st->index);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_packet_auto_bsf(AVFormatContext *s, AVPacket *pkt) {
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int ret;
|
|
|
|
if (!(s->flags & AVFMT_FLAG_AUTO_BSF))
|
|
return 1;
|
|
|
|
if (s->oformat->check_bitstream) {
|
|
if (!st->internal->bitstream_checked) {
|
|
if ((ret = s->oformat->check_bitstream(s, pkt)) < 0)
|
|
return ret;
|
|
else if (ret == 1)
|
|
st->internal->bitstream_checked = 1;
|
|
}
|
|
}
|
|
|
|
if (st->internal->bsfc) {
|
|
AVBSFContext *ctx = st->internal->bsfc;
|
|
// TODO: when any bitstream filter requires flushing at EOF, we'll need to
|
|
// flush each stream's BSF chain on write_trailer.
|
|
if ((ret = av_bsf_send_packet(ctx, pkt)) < 0) {
|
|
av_log(ctx, AV_LOG_ERROR,
|
|
"Failed to send packet to filter %s for stream %d\n",
|
|
ctx->filter->name, pkt->stream_index);
|
|
return ret;
|
|
}
|
|
// TODO: when any automatically-added bitstream filter is generating multiple
|
|
// output packets for a single input one, we'll need to call this in a loop
|
|
// and write each output packet.
|
|
if ((ret = av_bsf_receive_packet(ctx, pkt)) < 0) {
|
|
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
|
return 0;
|
|
av_log(ctx, AV_LOG_ERROR,
|
|
"Failed to receive packet from filter %s for stream %d\n",
|
|
ctx->filter->name, pkt->stream_index);
|
|
if (s->error_recognition & AV_EF_EXPLODE)
|
|
return ret;
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int av_write_frame(AVFormatContext *s, AVPacket *in)
|
|
{
|
|
AVPacket local_pkt, *pkt = &local_pkt;
|
|
int ret;
|
|
|
|
if (!in) {
|
|
if (s->oformat->flags & AVFMT_ALLOW_FLUSH) {
|
|
ret = s->oformat->write_packet(s, NULL);
|
|
flush_if_needed(s);
|
|
if (ret >= 0 && s->pb && s->pb->error < 0)
|
|
ret = s->pb->error;
|
|
return ret;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
if (in->flags & AV_PKT_FLAG_UNCODED_FRAME) {
|
|
pkt = in;
|
|
} else {
|
|
/* We don't own in, so we have to make sure not to modify it.
|
|
* The following avoids copying in's data unnecessarily.
|
|
* Copying side data is unavoidable as a bitstream filter
|
|
* may change it, e.g. free it on errors. */
|
|
pkt->buf = NULL;
|
|
pkt->data = in->data;
|
|
pkt->size = in->size;
|
|
ret = av_packet_copy_props(pkt, in);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (in->buf) {
|
|
pkt->buf = av_buffer_ref(in->buf);
|
|
if (!pkt->buf) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
ret = prepare_input_packet(s, pkt);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
ret = do_packet_auto_bsf(s, pkt);
|
|
if (ret <= 0)
|
|
goto fail;
|
|
|
|
#if FF_API_COMPUTE_PKT_FIELDS2 && FF_API_LAVF_AVCTX
|
|
ret = compute_muxer_pkt_fields(s, s->streams[pkt->stream_index], pkt);
|
|
|
|
if (ret < 0 && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
|
|
goto fail;
|
|
#endif
|
|
|
|
ret = write_packet(s, pkt);
|
|
|
|
fail:
|
|
// Uncoded frames using the noninterleaved codepath are also freed here
|
|
av_packet_unref(pkt);
|
|
return ret;
|
|
}
|
|
|
|
#define CHUNK_START 0x1000
|
|
|
|
int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
|
|
int (*compare)(AVFormatContext *, const AVPacket *, const AVPacket *))
|
|
{
|
|
int ret;
|
|
AVPacketList **next_point, *this_pktl;
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int chunked = s->max_chunk_size || s->max_chunk_duration;
|
|
|
|
this_pktl = av_malloc(sizeof(AVPacketList));
|
|
if (!this_pktl) {
|
|
av_packet_unref(pkt);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if ((ret = av_packet_make_refcounted(pkt)) < 0) {
|
|
av_free(this_pktl);
|
|
av_packet_unref(pkt);
|
|
return ret;
|
|
}
|
|
|
|
av_packet_move_ref(&this_pktl->pkt, pkt);
|
|
pkt = &this_pktl->pkt;
|
|
|
|
if (st->last_in_packet_buffer) {
|
|
next_point = &(st->last_in_packet_buffer->next);
|
|
} else {
|
|
next_point = &s->internal->packet_buffer;
|
|
}
|
|
|
|
if (chunked) {
|
|
uint64_t max= av_rescale_q_rnd(s->max_chunk_duration, AV_TIME_BASE_Q, st->time_base, AV_ROUND_UP);
|
|
st->interleaver_chunk_size += pkt->size;
|
|
st->interleaver_chunk_duration += pkt->duration;
|
|
if ( (s->max_chunk_size && st->interleaver_chunk_size > s->max_chunk_size)
|
|
|| (max && st->interleaver_chunk_duration > max)) {
|
|
st->interleaver_chunk_size = 0;
|
|
pkt->flags |= CHUNK_START;
|
|
if (max && st->interleaver_chunk_duration > max) {
|
|
int64_t syncoffset = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)*max/2;
|
|
int64_t syncto = av_rescale(pkt->dts + syncoffset, 1, max)*max - syncoffset;
|
|
|
|
st->interleaver_chunk_duration += (pkt->dts - syncto)/8 - max;
|
|
} else
|
|
st->interleaver_chunk_duration = 0;
|
|
}
|
|
}
|
|
if (*next_point) {
|
|
if (chunked && !(pkt->flags & CHUNK_START))
|
|
goto next_non_null;
|
|
|
|
if (compare(s, &s->internal->packet_buffer_end->pkt, pkt)) {
|
|
while ( *next_point
|
|
&& ((chunked && !((*next_point)->pkt.flags&CHUNK_START))
|
|
|| !compare(s, &(*next_point)->pkt, pkt)))
|
|
next_point = &(*next_point)->next;
|
|
if (*next_point)
|
|
goto next_non_null;
|
|
} else {
|
|
next_point = &(s->internal->packet_buffer_end->next);
|
|
}
|
|
}
|
|
av_assert1(!*next_point);
|
|
|
|
s->internal->packet_buffer_end = this_pktl;
|
|
next_non_null:
|
|
|
|
this_pktl->next = *next_point;
|
|
|
|
st->last_in_packet_buffer = *next_point = this_pktl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int interleave_compare_dts(AVFormatContext *s, const AVPacket *next,
|
|
const AVPacket *pkt)
|
|
{
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
AVStream *st2 = s->streams[next->stream_index];
|
|
int comp = av_compare_ts(next->dts, st2->time_base, pkt->dts,
|
|
st->time_base);
|
|
if (s->audio_preload) {
|
|
int preload = st ->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
|
|
int preload2 = st2->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
|
|
if (preload != preload2) {
|
|
int64_t ts, ts2;
|
|
preload *= s->audio_preload;
|
|
preload2 *= s->audio_preload;
|
|
ts = av_rescale_q(pkt ->dts, st ->time_base, AV_TIME_BASE_Q) - preload;
|
|
ts2= av_rescale_q(next->dts, st2->time_base, AV_TIME_BASE_Q) - preload2;
|
|
if (ts == ts2) {
|
|
ts = ((uint64_t)pkt ->dts*st ->time_base.num*AV_TIME_BASE - (uint64_t)preload *st ->time_base.den)*st2->time_base.den
|
|
- ((uint64_t)next->dts*st2->time_base.num*AV_TIME_BASE - (uint64_t)preload2*st2->time_base.den)*st ->time_base.den;
|
|
ts2 = 0;
|
|
}
|
|
comp = (ts2 > ts) - (ts2 < ts);
|
|
}
|
|
}
|
|
|
|
if (comp == 0)
|
|
return pkt->stream_index < next->stream_index;
|
|
return comp > 0;
|
|
}
|
|
|
|
int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
|
|
AVPacket *pkt, int flush)
|
|
{
|
|
AVPacketList *pktl;
|
|
int stream_count = 0;
|
|
int noninterleaved_count = 0;
|
|
int i, ret;
|
|
int eof = flush;
|
|
|
|
if (pkt) {
|
|
if ((ret = ff_interleave_add_packet(s, pkt, interleave_compare_dts)) < 0)
|
|
return ret;
|
|
}
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
if (s->streams[i]->last_in_packet_buffer) {
|
|
++stream_count;
|
|
} else if (s->streams[i]->codecpar->codec_type != AVMEDIA_TYPE_ATTACHMENT &&
|
|
s->streams[i]->codecpar->codec_id != AV_CODEC_ID_VP8 &&
|
|
s->streams[i]->codecpar->codec_id != AV_CODEC_ID_VP9) {
|
|
++noninterleaved_count;
|
|
}
|
|
}
|
|
|
|
if (s->internal->nb_interleaved_streams == stream_count)
|
|
flush = 1;
|
|
|
|
if (s->max_interleave_delta > 0 &&
|
|
s->internal->packet_buffer &&
|
|
!flush &&
|
|
s->internal->nb_interleaved_streams == stream_count+noninterleaved_count
|
|
) {
|
|
AVPacket *top_pkt = &s->internal->packet_buffer->pkt;
|
|
int64_t delta_dts = INT64_MIN;
|
|
int64_t top_dts = av_rescale_q(top_pkt->dts,
|
|
s->streams[top_pkt->stream_index]->time_base,
|
|
AV_TIME_BASE_Q);
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
int64_t last_dts;
|
|
const AVPacketList *last = s->streams[i]->last_in_packet_buffer;
|
|
|
|
if (!last)
|
|
continue;
|
|
|
|
last_dts = av_rescale_q(last->pkt.dts,
|
|
s->streams[i]->time_base,
|
|
AV_TIME_BASE_Q);
|
|
delta_dts = FFMAX(delta_dts, last_dts - top_dts);
|
|
}
|
|
|
|
if (delta_dts > s->max_interleave_delta) {
|
|
av_log(s, AV_LOG_DEBUG,
|
|
"Delay between the first packet and last packet in the "
|
|
"muxing queue is %"PRId64" > %"PRId64": forcing output\n",
|
|
delta_dts, s->max_interleave_delta);
|
|
flush = 1;
|
|
}
|
|
}
|
|
|
|
if (s->internal->packet_buffer &&
|
|
eof &&
|
|
(s->flags & AVFMT_FLAG_SHORTEST) &&
|
|
s->internal->shortest_end == AV_NOPTS_VALUE) {
|
|
AVPacket *top_pkt = &s->internal->packet_buffer->pkt;
|
|
|
|
s->internal->shortest_end = av_rescale_q(top_pkt->dts,
|
|
s->streams[top_pkt->stream_index]->time_base,
|
|
AV_TIME_BASE_Q);
|
|
}
|
|
|
|
if (s->internal->shortest_end != AV_NOPTS_VALUE) {
|
|
while (s->internal->packet_buffer) {
|
|
AVPacket *top_pkt = &s->internal->packet_buffer->pkt;
|
|
AVStream *st;
|
|
int64_t top_dts = av_rescale_q(top_pkt->dts,
|
|
s->streams[top_pkt->stream_index]->time_base,
|
|
AV_TIME_BASE_Q);
|
|
|
|
if (s->internal->shortest_end + 1 >= top_dts)
|
|
break;
|
|
|
|
pktl = s->internal->packet_buffer;
|
|
st = s->streams[pktl->pkt.stream_index];
|
|
|
|
s->internal->packet_buffer = pktl->next;
|
|
if (!s->internal->packet_buffer)
|
|
s->internal->packet_buffer_end = NULL;
|
|
|
|
if (st->last_in_packet_buffer == pktl)
|
|
st->last_in_packet_buffer = NULL;
|
|
|
|
av_packet_unref(&pktl->pkt);
|
|
av_freep(&pktl);
|
|
flush = 0;
|
|
}
|
|
}
|
|
|
|
if (stream_count && flush) {
|
|
AVStream *st;
|
|
pktl = s->internal->packet_buffer;
|
|
*out = pktl->pkt;
|
|
st = s->streams[out->stream_index];
|
|
|
|
s->internal->packet_buffer = pktl->next;
|
|
if (!s->internal->packet_buffer)
|
|
s->internal->packet_buffer_end = NULL;
|
|
|
|
if (st->last_in_packet_buffer == pktl)
|
|
st->last_in_packet_buffer = NULL;
|
|
av_freep(&pktl);
|
|
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int ff_interleaved_peek(AVFormatContext *s, int stream,
|
|
AVPacket *pkt, int add_offset)
|
|
{
|
|
AVPacketList *pktl = s->internal->packet_buffer;
|
|
while (pktl) {
|
|
if (pktl->pkt.stream_index == stream) {
|
|
*pkt = pktl->pkt;
|
|
if (add_offset) {
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int64_t offset = st->mux_ts_offset;
|
|
|
|
if (s->output_ts_offset)
|
|
offset += av_rescale_q(s->output_ts_offset, AV_TIME_BASE_Q, st->time_base);
|
|
|
|
if (pkt->dts != AV_NOPTS_VALUE)
|
|
pkt->dts += offset;
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
pkt->pts += offset;
|
|
}
|
|
return 0;
|
|
}
|
|
pktl = pktl->next;
|
|
}
|
|
return AVERROR(ENOENT);
|
|
}
|
|
|
|
/**
|
|
* Interleave an AVPacket correctly so it can be muxed.
|
|
* @param out the interleaved packet will be output here
|
|
* @param in the input packet; will always be blank on return if not NULL
|
|
* @param flush 1 if no further packets are available as input and all
|
|
* remaining packets should be output
|
|
* @return 1 if a packet was output, 0 if no packet could be output,
|
|
* < 0 if an error occurred
|
|
*/
|
|
static int interleave_packet(AVFormatContext *s, AVPacket *out, AVPacket *in, int flush)
|
|
{
|
|
if (s->oformat->interleave_packet) {
|
|
int ret = s->oformat->interleave_packet(s, out, in, flush);
|
|
if (in)
|
|
av_packet_unref(in);
|
|
return ret;
|
|
} else
|
|
return ff_interleave_packet_per_dts(s, out, in, flush);
|
|
}
|
|
|
|
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
int ret, flush = 0;
|
|
|
|
if (pkt) {
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
|
|
ret = prepare_input_packet(s, pkt);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
ret = do_packet_auto_bsf(s, pkt);
|
|
if (ret == 0)
|
|
return 0;
|
|
else if (ret < 0)
|
|
goto fail;
|
|
|
|
if (s->debug & FF_FDEBUG_TS)
|
|
av_log(s, AV_LOG_DEBUG, "av_interleaved_write_frame size:%d dts:%s pts:%s\n",
|
|
pkt->size, av_ts2str(pkt->dts), av_ts2str(pkt->pts));
|
|
|
|
#if FF_API_COMPUTE_PKT_FIELDS2 && FF_API_LAVF_AVCTX
|
|
if ((ret = compute_muxer_pkt_fields(s, st, pkt)) < 0 && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
|
|
goto fail;
|
|
#endif
|
|
|
|
if (pkt->dts == AV_NOPTS_VALUE && !(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
av_log(s, AV_LOG_TRACE, "av_interleaved_write_frame FLUSH\n");
|
|
flush = 1;
|
|
}
|
|
|
|
for (;; ) {
|
|
AVPacket opkt;
|
|
int ret = interleave_packet(s, &opkt, pkt, flush);
|
|
if (ret <= 0)
|
|
return ret;
|
|
|
|
pkt = NULL;
|
|
|
|
ret = write_packet(s, &opkt);
|
|
|
|
av_packet_unref(&opkt);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
fail:
|
|
av_packet_unref(pkt);
|
|
return ret;
|
|
}
|
|
|
|
int av_write_trailer(AVFormatContext *s)
|
|
{
|
|
int ret, i;
|
|
|
|
for (;; ) {
|
|
AVPacket pkt;
|
|
ret = interleave_packet(s, &pkt, NULL, 1);
|
|
if (ret < 0)
|
|
goto fail;
|
|
if (!ret)
|
|
break;
|
|
|
|
ret = write_packet(s, &pkt);
|
|
|
|
av_packet_unref(&pkt);
|
|
|
|
if (ret < 0)
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
if (s->oformat->write_trailer) {
|
|
if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
|
|
avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
|
|
if (ret >= 0) {
|
|
ret = s->oformat->write_trailer(s);
|
|
} else {
|
|
s->oformat->write_trailer(s);
|
|
}
|
|
}
|
|
|
|
deinit_muxer(s);
|
|
|
|
if (s->pb)
|
|
avio_flush(s->pb);
|
|
if (ret == 0)
|
|
ret = s->pb ? s->pb->error : 0;
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
av_freep(&s->streams[i]->priv_data);
|
|
av_freep(&s->streams[i]->index_entries);
|
|
}
|
|
if (s->oformat->priv_class)
|
|
av_opt_free(s->priv_data);
|
|
av_freep(&s->priv_data);
|
|
return ret;
|
|
}
|
|
|
|
int av_get_output_timestamp(struct AVFormatContext *s, int stream,
|
|
int64_t *dts, int64_t *wall)
|
|
{
|
|
if (!s->oformat || !s->oformat->get_output_timestamp)
|
|
return AVERROR(ENOSYS);
|
|
s->oformat->get_output_timestamp(s, stream, dts, wall);
|
|
return 0;
|
|
}
|
|
|
|
int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
|
|
AVFormatContext *src, int interleave)
|
|
{
|
|
AVPacket local_pkt;
|
|
int ret;
|
|
|
|
local_pkt = *pkt;
|
|
local_pkt.stream_index = dst_stream;
|
|
|
|
av_packet_rescale_ts(&local_pkt,
|
|
src->streams[pkt->stream_index]->time_base,
|
|
dst->streams[dst_stream]->time_base);
|
|
|
|
if (interleave) ret = av_interleaved_write_frame(dst, &local_pkt);
|
|
else ret = av_write_frame(dst, &local_pkt);
|
|
pkt->buf = local_pkt.buf;
|
|
pkt->side_data = local_pkt.side_data;
|
|
pkt->side_data_elems = local_pkt.side_data_elems;
|
|
return ret;
|
|
}
|
|
|
|
static void uncoded_frame_free(void *unused, uint8_t *data)
|
|
{
|
|
av_frame_free((AVFrame **)data);
|
|
av_free(data);
|
|
}
|
|
|
|
static int write_uncoded_frame_internal(AVFormatContext *s, int stream_index,
|
|
AVFrame *frame, int interleaved)
|
|
{
|
|
AVPacket pkt, *pktp;
|
|
|
|
av_assert0(s->oformat);
|
|
if (!s->oformat->write_uncoded_frame) {
|
|
av_frame_free(&frame);
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
|
|
if (!frame) {
|
|
pktp = NULL;
|
|
} else {
|
|
size_t bufsize = sizeof(frame) + AV_INPUT_BUFFER_PADDING_SIZE;
|
|
AVFrame **framep = av_mallocz(bufsize);
|
|
|
|
if (!framep)
|
|
goto fail;
|
|
pktp = &pkt;
|
|
av_init_packet(&pkt);
|
|
pkt.buf = av_buffer_create((void *)framep, bufsize,
|
|
uncoded_frame_free, NULL, 0);
|
|
if (!pkt.buf) {
|
|
av_free(framep);
|
|
fail:
|
|
av_frame_free(&frame);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
*framep = frame;
|
|
|
|
pkt.data = (void *)framep;
|
|
pkt.size = sizeof(frame);
|
|
pkt.pts =
|
|
pkt.dts = frame->pts;
|
|
pkt.duration = frame->pkt_duration;
|
|
pkt.stream_index = stream_index;
|
|
pkt.flags |= AV_PKT_FLAG_UNCODED_FRAME;
|
|
}
|
|
|
|
return interleaved ? av_interleaved_write_frame(s, pktp) :
|
|
av_write_frame(s, pktp);
|
|
}
|
|
|
|
int av_write_uncoded_frame(AVFormatContext *s, int stream_index,
|
|
AVFrame *frame)
|
|
{
|
|
return write_uncoded_frame_internal(s, stream_index, frame, 0);
|
|
}
|
|
|
|
int av_interleaved_write_uncoded_frame(AVFormatContext *s, int stream_index,
|
|
AVFrame *frame)
|
|
{
|
|
return write_uncoded_frame_internal(s, stream_index, frame, 1);
|
|
}
|
|
|
|
int av_write_uncoded_frame_query(AVFormatContext *s, int stream_index)
|
|
{
|
|
av_assert0(s->oformat);
|
|
if (!s->oformat->write_uncoded_frame)
|
|
return AVERROR(ENOSYS);
|
|
return s->oformat->write_uncoded_frame(s, stream_index, NULL,
|
|
AV_WRITE_UNCODED_FRAME_QUERY);
|
|
}
|