388 lines
12 KiB
C++
388 lines
12 KiB
C++
/*
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* ZoneMinder FFMPEG implementation, $Date$, $Revision$
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* Copyright (C) 2001-2008 Philip Coombes
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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 "zm_ffmpeg.h"
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#include "zm_image.h"
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#include "zm_rgb.h"
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#if HAVE_LIBAVCODEC || HAVE_LIBAVUTIL || HAVE_LIBSWSCALE
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void FFMPEGInit() {
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static bool bInit = false;
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if(!bInit) {
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av_register_all();
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av_log_set_level(AV_LOG_DEBUG);
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bInit = true;
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}
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}
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#if HAVE_LIBAVUTIL
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enum _AVPIXELFORMAT GetFFMPEGPixelFormat(unsigned int p_colours, unsigned p_subpixelorder) {
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enum _AVPIXELFORMAT pf;
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Debug(8,"Colours: %d SubpixelOrder: %d",p_colours,p_subpixelorder);
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switch(p_colours) {
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case ZM_COLOUR_RGB24:
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{
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if(p_subpixelorder == ZM_SUBPIX_ORDER_BGR) {
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/* BGR subpixel order */
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pf = AV_PIX_FMT_BGR24;
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} else {
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/* Assume RGB subpixel order */
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pf = AV_PIX_FMT_RGB24;
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}
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break;
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}
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case ZM_COLOUR_RGB32:
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{
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if(p_subpixelorder == ZM_SUBPIX_ORDER_ARGB) {
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/* ARGB subpixel order */
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pf = AV_PIX_FMT_ARGB;
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} else if(p_subpixelorder == ZM_SUBPIX_ORDER_ABGR) {
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/* ABGR subpixel order */
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pf = AV_PIX_FMT_ABGR;
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} else if(p_subpixelorder == ZM_SUBPIX_ORDER_BGRA) {
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/* BGRA subpixel order */
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pf = AV_PIX_FMT_BGRA;
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} else {
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/* Assume RGBA subpixel order */
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pf = AV_PIX_FMT_RGBA;
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}
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break;
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}
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case ZM_COLOUR_GRAY8:
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pf = AV_PIX_FMT_GRAY8;
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break;
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default:
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Panic("Unexpected colours: %d",p_colours);
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pf = AV_PIX_FMT_GRAY8; /* Just to shush gcc variable may be unused warning */
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break;
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}
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return pf;
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}
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/* The following is copied directly from newer ffmpeg. */
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#if LIBAVUTIL_VERSION_CHECK(52, 7, 0, 17, 100)
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#else
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static int parse_key_value_pair(AVDictionary **pm, const char **buf,
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const char *key_val_sep, const char *pairs_sep,
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int flags)
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{
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char *key = av_get_token(buf, key_val_sep);
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char *val = NULL;
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int ret;
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if (key && *key && strspn(*buf, key_val_sep)) {
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(*buf)++;
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val = av_get_token(buf, pairs_sep);
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}
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if (key && *key && val && *val)
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ret = av_dict_set(pm, key, val, flags);
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else
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ret = AVERROR(EINVAL);
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av_freep(&key);
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av_freep(&val);
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return ret;
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}
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int av_dict_parse_string(AVDictionary **pm, const char *str,
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const char *key_val_sep, const char *pairs_sep,
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int flags)
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{
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int ret;
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if (!str)
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return 0;
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/* ignore STRDUP flags */
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flags &= ~(AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
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while (*str) {
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if ((ret = parse_key_value_pair(pm, &str, key_val_sep, pairs_sep, flags)) < 0)
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return ret;
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if (*str)
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str++;
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}
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return 0;
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}
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#endif
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#endif // HAVE_LIBAVUTIL
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#endif // HAVE_LIBAVCODEC || HAVE_LIBAVUTIL || HAVE_LIBSWSCALE
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#if HAVE_LIBAVUTIL
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int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb){
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int64_t a, b, this_thing;
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av_assert0(in_ts != AV_NOPTS_VALUE);
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av_assert0(duration >= 0);
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if (*last == AV_NOPTS_VALUE || !duration || in_tb.num*(int64_t)out_tb.den <= out_tb.num*(int64_t)in_tb.den) {
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simple_round:
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*last = av_rescale_q(in_ts, in_tb, fs_tb) + duration;
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return av_rescale_q(in_ts, in_tb, out_tb);
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}
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a = av_rescale_q_rnd(2*in_ts-1, in_tb, fs_tb, AV_ROUND_DOWN) >>1;
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b = (av_rescale_q_rnd(2*in_ts+1, in_tb, fs_tb, AV_ROUND_UP )+1)>>1;
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if (*last < 2*a - b || *last > 2*b - a)
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goto simple_round;
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this_thing = av_clip64(*last, a, b);
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*last = this_thing + duration;
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return av_rescale_q(this_thing, fs_tb, out_tb);
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}
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#endif
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int hacked_up_context2_for_older_ffmpeg(AVFormatContext **avctx, AVOutputFormat *oformat, const char *format, const char *filename) {
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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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av_log(s, AV_LOG_ERROR, "Out of memory\n");
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ret = AVERROR(ENOMEM);
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return ret;
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}
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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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}
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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", filename);
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}
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}
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}
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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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}
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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", filename);
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}
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}
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}
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if (ret) {
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avformat_free_context(s);
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return ret;
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} else {
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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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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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av_log(s, AV_LOG_ERROR, "Out of memory\n");
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ret = AVERROR(ENOMEM);
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return ret;
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}
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s->priv_data = NULL;
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}
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if (filename) strncpy(s->filename, filename, sizeof(s->filename));
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*avctx = s;
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return 0;
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}
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}
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static void zm_log_fps(double d, const char *postfix) {
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uint64_t v = lrintf(d * 100);
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if (!v) {
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Debug(1, "%1.4f %s", d, postfix);
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} else if (v % 100) {
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Debug(1, "%3.2f %s", d, postfix);
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} else if (v % (100 * 1000)) {
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Debug(1, "%1.0f %s", d, postfix);
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} else
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Debug(1, "%1.0fk %s", d / 1000, postfix);
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}
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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void zm_dump_codecpar ( const AVCodecParameters *par ) {
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Debug(1, "Dumping codecpar codec_type(%d) codec_id(%d) codec_tag(%d) width(%d) height(%d)",
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par->codec_type,
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par->codec_id,
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par->codec_tag,
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par->width,
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par->height
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);
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}
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#endif
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void zm_dump_codec ( const AVCodecContext *codec ) {
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Debug(1, "Dumping codecpar codec_type(%d) codec_id(%d) width(%d) height(%d)",
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codec->codec_type,
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codec->codec_id,
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codec->width,
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codec->height
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);
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}
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/* "user interface" functions */
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void zm_dump_stream_format(AVFormatContext *ic, int i, int index, int is_output) {
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char buf[256];
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Debug(1, "Dumping stream index i(%d) index(%d)", i, index );
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int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
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AVStream *st = ic->streams[i];
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AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
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avcodec_string(buf, sizeof(buf), st->codec, is_output);
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Debug(1, " Stream #%d:%d", index, i);
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/* the pid is an important information, so we display it */
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/* XXX: add a generic system */
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if (flags & AVFMT_SHOW_IDS)
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Debug(1, "[0x%x]", st->id);
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if (lang)
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Debug(1, "(%s)", lang->value);
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Debug(1, ", %d, %d/%d", st->codec_info_nb_frames, st->time_base.num, st->time_base.den);
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Debug(1, ": %s", buf);
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if (st->sample_aspect_ratio.num && // default
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av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
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AVRational display_aspect_ratio;
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av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
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st->codec->width * (int64_t)st->sample_aspect_ratio.num,
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st->codec->height * (int64_t)st->sample_aspect_ratio.den,
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1024 * 1024);
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Debug(1, ", SAR %d:%d DAR %d:%d",
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st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
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display_aspect_ratio.num, display_aspect_ratio.den);
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}
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if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
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int fps = st->avg_frame_rate.den && st->avg_frame_rate.num;
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int tbn = st->time_base.den && st->time_base.num;
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int tbc = st->codec->time_base.den && st->codec->time_base.num;
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if (fps || tbn || tbc)
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Debug(3, "\n" );
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if (fps)
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zm_log_fps(av_q2d(st->avg_frame_rate), tbn || tbc ? "fps, " : "fps");
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if (tbn)
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zm_log_fps(1 / av_q2d(st->time_base), tbc ? "stream tb numerator , " : "stream tb numerator");
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if (tbc)
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zm_log_fps(1 / av_q2d(st->codec->time_base), "codec time base:");
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}
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if (st->disposition & AV_DISPOSITION_DEFAULT)
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Debug(1, " (default)");
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if (st->disposition & AV_DISPOSITION_DUB)
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Debug(1, " (dub)");
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if (st->disposition & AV_DISPOSITION_ORIGINAL)
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Debug(1, " (original)");
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if (st->disposition & AV_DISPOSITION_COMMENT)
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Debug(1, " (comment)");
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if (st->disposition & AV_DISPOSITION_LYRICS)
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Debug(1, " (lyrics)");
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if (st->disposition & AV_DISPOSITION_KARAOKE)
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Debug(1, " (karaoke)");
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if (st->disposition & AV_DISPOSITION_FORCED)
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Debug(1, " (forced)");
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if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
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Debug(1, " (hearing impaired)");
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if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
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Debug(1, " (visual impaired)");
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if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
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Debug(1, " (clean effects)");
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Debug(1, "\n");
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//dump_metadata(NULL, st->metadata, " ");
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//dump_sidedata(NULL, st, " ");
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}
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int check_sample_fmt(AVCodec *codec, enum AVSampleFormat sample_fmt) {
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const enum AVSampleFormat *p = codec->sample_fmts;
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while (*p != AV_SAMPLE_FMT_NONE) {
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if (*p == sample_fmt)
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return 1;
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else Debug(2, "Not %s", av_get_sample_fmt_name( *p ) );
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p++;
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}
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return 0;
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}
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#if LIBAVCODEC_VERSION_CHECK(56, 8, 0, 60, 100)
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#else
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unsigned int zm_av_packet_ref( AVPacket *dst, AVPacket *src ) {
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dst->data = reinterpret_cast<uint8_t*>(new uint64_t[(src->size + FF_INPUT_BUFFER_PADDING_SIZE)/sizeof(uint64_t) + 1]);
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memcpy(dst->data, src->data, src->size );
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return 0;
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}
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#endif
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bool is_video_stream( AVStream * stream ) {
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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if ( stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
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#else
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#if (LIBAVCODEC_VERSION_CHECK(52, 64, 0, 64, 0) || LIBAVUTIL_VERSION_CHECK(50, 14, 0, 14, 0))
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if ( stream->codec->codec_type == AVMEDIA_TYPE_VIDEO ) {
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#else
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if ( stream->codec->codec_type == CODEC_TYPE_VIDEO ) {
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#endif
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#endif
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return true;
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}
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return false;
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}
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bool is_audio_stream( AVStream * stream ) {
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#if LIBAVCODEC_VERSION_CHECK(57, 64, 0, 64, 0)
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if ( stream->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
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#else
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#if (LIBAVCODEC_VERSION_CHECK(52, 64, 0, 64, 0) || LIBAVUTIL_VERSION_CHECK(50, 14, 0, 14, 0))
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if ( stream->codec->codec_type == AVMEDIA_TYPE_AUDIO ) {
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#else
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if ( stream->codec->codec_type == CODEC_TYPE_AUDIO ) {
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#endif
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#endif
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return true;
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}
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return false;
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}
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