619 lines
19 KiB
C
619 lines
19 KiB
C
|
/*
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* Tee pseudo-muxer
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* Copyright (c) 2012 Nicolas George
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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 License
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* 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
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* GNU 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 License
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* along with FFmpeg; if not, write to the Free Software * Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/avutil.h"
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#include "libavutil/avstring.h"
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#include "libavutil/opt.h"
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#include "internal.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "tee_common.h"
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typedef enum {
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ON_SLAVE_FAILURE_ABORT = 1,
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ON_SLAVE_FAILURE_IGNORE = 2
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} SlaveFailurePolicy;
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#define DEFAULT_SLAVE_FAILURE_POLICY ON_SLAVE_FAILURE_ABORT
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typedef struct {
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AVFormatContext *avf;
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AVBSFContext **bsfs; ///< bitstream filters per stream
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SlaveFailurePolicy on_fail;
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int use_fifo;
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AVDictionary *fifo_options;
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/** map from input to output streams indexes,
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* disabled output streams are set to -1 */
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int *stream_map;
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int header_written;
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} TeeSlave;
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typedef struct TeeContext {
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const AVClass *class;
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unsigned nb_slaves;
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unsigned nb_alive;
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TeeSlave *slaves;
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int use_fifo;
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AVDictionary *fifo_options;
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} TeeContext;
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static const char *const slave_delim = "|";
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static const char *const slave_bsfs_spec_sep = "/";
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static const char *const slave_select_sep = ",";
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#define OFFSET(x) offsetof(TeeContext, x)
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static const AVOption options[] = {
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{"use_fifo", "Use fifo pseudo-muxer to separate actual muxers from encoder",
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OFFSET(use_fifo), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
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{"fifo_options", "fifo pseudo-muxer options", OFFSET(fifo_options),
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AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM},
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{NULL}
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};
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static const AVClass tee_muxer_class = {
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.class_name = "Tee muxer",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static inline int parse_slave_failure_policy_option(const char *opt, TeeSlave *tee_slave)
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{
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if (!opt) {
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tee_slave->on_fail = DEFAULT_SLAVE_FAILURE_POLICY;
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return 0;
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} else if (!av_strcasecmp("abort", opt)) {
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tee_slave->on_fail = ON_SLAVE_FAILURE_ABORT;
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return 0;
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} else if (!av_strcasecmp("ignore", opt)) {
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tee_slave->on_fail = ON_SLAVE_FAILURE_IGNORE;
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return 0;
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}
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/* Set failure behaviour to abort, so invalid option error will not be ignored */
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tee_slave->on_fail = ON_SLAVE_FAILURE_ABORT;
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return AVERROR(EINVAL);
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}
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static int parse_slave_fifo_options(const char *use_fifo,
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const char *fifo_options, TeeSlave *tee_slave)
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{
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int ret = 0;
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if (use_fifo) {
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/*TODO - change this to use proper function for parsing boolean
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* options when there is one */
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if (av_match_name(use_fifo, "true,y,yes,enable,enabled,on,1")) {
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tee_slave->use_fifo = 1;
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} else if (av_match_name(use_fifo, "false,n,no,disable,disabled,off,0")) {
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tee_slave->use_fifo = 0;
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} else {
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return AVERROR(EINVAL);
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}
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}
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if (fifo_options)
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ret = av_dict_parse_string(&tee_slave->fifo_options, fifo_options, "=", ":", 0);
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return ret;
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}
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static int close_slave(TeeSlave *tee_slave)
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{
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AVFormatContext *avf;
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unsigned i;
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int ret = 0;
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avf = tee_slave->avf;
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if (!avf)
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return 0;
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if (tee_slave->header_written)
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ret = av_write_trailer(avf);
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if (tee_slave->bsfs) {
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for (i = 0; i < avf->nb_streams; ++i)
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av_bsf_free(&tee_slave->bsfs[i]);
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}
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av_freep(&tee_slave->stream_map);
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av_freep(&tee_slave->bsfs);
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ff_format_io_close(avf, &avf->pb);
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avformat_free_context(avf);
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tee_slave->avf = NULL;
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return ret;
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}
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static void close_slaves(AVFormatContext *avf)
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{
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TeeContext *tee = avf->priv_data;
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unsigned i;
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for (i = 0; i < tee->nb_slaves; i++) {
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close_slave(&tee->slaves[i]);
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}
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av_freep(&tee->slaves);
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}
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static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
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{
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int i, ret;
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AVDictionary *options = NULL, *bsf_options = NULL;
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AVDictionaryEntry *entry;
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char *filename;
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char *format = NULL, *select = NULL, *on_fail = NULL;
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char *use_fifo = NULL, *fifo_options_str = NULL;
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AVFormatContext *avf2 = NULL;
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AVStream *st, *st2;
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int stream_count;
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int fullret;
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char *subselect = NULL, *next_subselect = NULL, *first_subselect = NULL, *tmp_select = NULL;
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if ((ret = ff_tee_parse_slave_options(avf, slave, &options, &filename)) < 0)
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return ret;
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#define STEAL_OPTION(option, field) do { \
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if ((entry = av_dict_get(options, option, NULL, 0))) { \
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field = entry->value; \
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entry->value = NULL; /* prevent it from being freed */ \
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av_dict_set(&options, option, NULL, 0); \
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} \
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} while (0)
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STEAL_OPTION("f", format);
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STEAL_OPTION("select", select);
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STEAL_OPTION("onfail", on_fail);
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STEAL_OPTION("use_fifo", use_fifo);
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STEAL_OPTION("fifo_options", fifo_options_str);
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entry = NULL;
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while ((entry = av_dict_get(options, "bsfs", entry, AV_DICT_IGNORE_SUFFIX))) {
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/* trim out strlen("bsfs") characters from key */
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av_dict_set(&bsf_options, entry->key + 4, entry->value, 0);
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av_dict_set(&options, entry->key, NULL, 0);
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}
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ret = parse_slave_failure_policy_option(on_fail, tee_slave);
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if (ret < 0) {
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av_log(avf, AV_LOG_ERROR,
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"Invalid onfail option value, valid options are 'abort' and 'ignore'\n");
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goto end;
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}
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ret = parse_slave_fifo_options(use_fifo, fifo_options_str, tee_slave);
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if (ret < 0) {
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av_log(avf, AV_LOG_ERROR, "Error parsing fifo options: %s\n", av_err2str(ret));
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goto end;
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}
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if (tee_slave->use_fifo) {
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if (options) {
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char *format_options_str = NULL;
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ret = av_dict_get_string(options, &format_options_str, '=', ':');
|
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if (ret < 0)
|
||
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goto end;
|
||
|
|
|
||
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ret = av_dict_set(&tee_slave->fifo_options, "format_opts", format_options_str,
|
||
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AV_DICT_DONT_STRDUP_VAL);
|
||
|
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if (ret < 0)
|
||
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goto end;
|
||
|
|
}
|
||
|
|
|
||
|
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if (format) {
|
||
|
|
ret = av_dict_set(&tee_slave->fifo_options, "fifo_format", format,
|
||
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|
AV_DICT_DONT_STRDUP_VAL);
|
||
|
|
format = NULL;
|
||
|
|
if (ret < 0)
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
av_dict_free(&options);
|
||
|
|
options = tee_slave->fifo_options;
|
||
|
|
}
|
||
|
|
ret = avformat_alloc_output_context2(&avf2, NULL,
|
||
|
|
tee_slave->use_fifo ? "fifo" :format, filename);
|
||
|
|
if (ret < 0)
|
||
|
|
goto end;
|
||
|
|
tee_slave->avf = avf2;
|
||
|
|
av_dict_copy(&avf2->metadata, avf->metadata, 0);
|
||
|
|
avf2->opaque = avf->opaque;
|
||
|
|
avf2->io_open = avf->io_open;
|
||
|
|
avf2->io_close = avf->io_close;
|
||
|
|
avf2->interrupt_callback = avf->interrupt_callback;
|
||
|
|
avf2->flags = avf->flags;
|
||
|
|
avf2->strict_std_compliance = avf->strict_std_compliance;
|
||
|
|
|
||
|
|
tee_slave->stream_map = av_calloc(avf->nb_streams, sizeof(*tee_slave->stream_map));
|
||
|
|
if (!tee_slave->stream_map) {
|
||
|
|
ret = AVERROR(ENOMEM);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
stream_count = 0;
|
||
|
|
for (i = 0; i < avf->nb_streams; i++) {
|
||
|
|
st = avf->streams[i];
|
||
|
|
if (select) {
|
||
|
|
tmp_select = av_strdup(select); // av_strtok is destructive so we regenerate it in each loop
|
||
|
|
if (!tmp_select) {
|
||
|
|
ret = AVERROR(ENOMEM);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
fullret = 0;
|
||
|
|
first_subselect = tmp_select;
|
||
|
|
next_subselect = NULL;
|
||
|
|
while (subselect = av_strtok(first_subselect, slave_select_sep, &next_subselect)) {
|
||
|
|
first_subselect = NULL;
|
||
|
|
|
||
|
|
ret = avformat_match_stream_specifier(avf, avf->streams[i], subselect);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR,
|
||
|
|
"Invalid stream specifier '%s' for output '%s'\n",
|
||
|
|
subselect, slave);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
if (ret != 0) {
|
||
|
|
fullret = 1; // match
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
av_freep(&tmp_select);
|
||
|
|
|
||
|
|
if (fullret == 0) { /* no match */
|
||
|
|
tee_slave->stream_map[i] = -1;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
tee_slave->stream_map[i] = stream_count++;
|
||
|
|
|
||
|
|
if (!(st2 = avformat_new_stream(avf2, NULL))) {
|
||
|
|
ret = AVERROR(ENOMEM);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ff_stream_encode_params_copy(st2, st);
|
||
|
|
if (ret < 0)
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ff_format_output_open(avf2, filename, &options);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR, "Slave '%s': error opening: %s\n", slave,
|
||
|
|
av_err2str(ret));
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((ret = avformat_write_header(avf2, &options)) < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR, "Slave '%s': error writing header: %s\n",
|
||
|
|
slave, av_err2str(ret));
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
tee_slave->header_written = 1;
|
||
|
|
|
||
|
|
tee_slave->bsfs = av_calloc(avf2->nb_streams, sizeof(*tee_slave->bsfs));
|
||
|
|
if (!tee_slave->bsfs) {
|
||
|
|
ret = AVERROR(ENOMEM);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
entry = NULL;
|
||
|
|
while (entry = av_dict_get(bsf_options, "", NULL, AV_DICT_IGNORE_SUFFIX)) {
|
||
|
|
const char *spec = entry->key;
|
||
|
|
if (*spec) {
|
||
|
|
if (strspn(spec, slave_bsfs_spec_sep) != 1) {
|
||
|
|
av_log(avf, AV_LOG_ERROR,
|
||
|
|
"Specifier separator in '%s' is '%c', but only characters '%s' "
|
||
|
|
"are allowed\n", entry->key, *spec, slave_bsfs_spec_sep);
|
||
|
|
ret = AVERROR(EINVAL);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
spec++; /* consume separator */
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < avf2->nb_streams; i++) {
|
||
|
|
ret = avformat_match_stream_specifier(avf2, avf2->streams[i], spec);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR,
|
||
|
|
"Invalid stream specifier '%s' in bsfs option '%s' for slave "
|
||
|
|
"output '%s'\n", spec, entry->key, filename);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ret > 0) {
|
||
|
|
av_log(avf, AV_LOG_DEBUG, "spec:%s bsfs:%s matches stream %d of slave "
|
||
|
|
"output '%s'\n", spec, entry->value, i, filename);
|
||
|
|
if (tee_slave->bsfs[i]) {
|
||
|
|
av_log(avf, AV_LOG_WARNING,
|
||
|
|
"Duplicate bsfs specification associated to stream %d of slave "
|
||
|
|
"output '%s', filters will be ignored\n", i, filename);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
ret = av_bsf_list_parse_str(entry->value, &tee_slave->bsfs[i]);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR,
|
||
|
|
"Error parsing bitstream filter sequence '%s' associated to "
|
||
|
|
"stream %d of slave output '%s'\n", entry->value, i, filename);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
av_dict_set(&bsf_options, entry->key, NULL, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < avf->nb_streams; i++){
|
||
|
|
int target_stream = tee_slave->stream_map[i];
|
||
|
|
if (target_stream < 0)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (!tee_slave->bsfs[target_stream]) {
|
||
|
|
/* Add pass-through bitstream filter */
|
||
|
|
ret = av_bsf_get_null_filter(&tee_slave->bsfs[target_stream]);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR,
|
||
|
|
"Failed to create pass-through bitstream filter: %s\n",
|
||
|
|
av_err2str(ret));
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
tee_slave->bsfs[target_stream]->time_base_in = avf->streams[i]->time_base;
|
||
|
|
ret = avcodec_parameters_copy(tee_slave->bsfs[target_stream]->par_in,
|
||
|
|
avf->streams[i]->codecpar);
|
||
|
|
if (ret < 0)
|
||
|
|
goto end;
|
||
|
|
|
||
|
|
ret = av_bsf_init(tee_slave->bsfs[target_stream]);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR,
|
||
|
|
"Failed to initialize bitstream filter(s): %s\n",
|
||
|
|
av_err2str(ret));
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options) {
|
||
|
|
entry = NULL;
|
||
|
|
while ((entry = av_dict_get(options, "", entry, AV_DICT_IGNORE_SUFFIX)))
|
||
|
|
av_log(avf2, AV_LOG_ERROR, "Unknown option '%s'\n", entry->key);
|
||
|
|
ret = AVERROR_OPTION_NOT_FOUND;
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
end:
|
||
|
|
av_free(format);
|
||
|
|
av_free(select);
|
||
|
|
av_free(on_fail);
|
||
|
|
av_dict_free(&options);
|
||
|
|
av_dict_free(&bsf_options);
|
||
|
|
av_freep(&tmp_select);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void log_slave(TeeSlave *slave, void *log_ctx, int log_level)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
av_log(log_ctx, log_level, "filename:'%s' format:%s\n",
|
||
|
|
slave->avf->url, slave->avf->oformat->name);
|
||
|
|
for (i = 0; i < slave->avf->nb_streams; i++) {
|
||
|
|
AVStream *st = slave->avf->streams[i];
|
||
|
|
AVBSFContext *bsf = slave->bsfs[i];
|
||
|
|
const char *bsf_name;
|
||
|
|
|
||
|
|
av_log(log_ctx, log_level, " stream:%d codec:%s type:%s",
|
||
|
|
i, avcodec_get_name(st->codecpar->codec_id),
|
||
|
|
av_get_media_type_string(st->codecpar->codec_type));
|
||
|
|
|
||
|
|
bsf_name = bsf->filter->priv_class ?
|
||
|
|
bsf->filter->priv_class->item_name(bsf) : bsf->filter->name;
|
||
|
|
av_log(log_ctx, log_level, " bsfs: %s\n", bsf_name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tee_process_slave_failure(AVFormatContext *avf, unsigned slave_idx, int err_n)
|
||
|
|
{
|
||
|
|
TeeContext *tee = avf->priv_data;
|
||
|
|
TeeSlave *tee_slave = &tee->slaves[slave_idx];
|
||
|
|
|
||
|
|
tee->nb_alive--;
|
||
|
|
|
||
|
|
close_slave(tee_slave);
|
||
|
|
|
||
|
|
if (!tee->nb_alive) {
|
||
|
|
av_log(avf, AV_LOG_ERROR, "All tee outputs failed.\n");
|
||
|
|
return err_n;
|
||
|
|
} else if (tee_slave->on_fail == ON_SLAVE_FAILURE_ABORT) {
|
||
|
|
av_log(avf, AV_LOG_ERROR, "Slave muxer #%u failed, aborting.\n", slave_idx);
|
||
|
|
return err_n;
|
||
|
|
} else {
|
||
|
|
av_log(avf, AV_LOG_ERROR, "Slave muxer #%u failed: %s, continuing with %u/%u slaves.\n",
|
||
|
|
slave_idx, av_err2str(err_n), tee->nb_alive, tee->nb_slaves);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tee_write_header(AVFormatContext *avf)
|
||
|
|
{
|
||
|
|
TeeContext *tee = avf->priv_data;
|
||
|
|
unsigned nb_slaves = 0, i;
|
||
|
|
const char *filename = avf->url;
|
||
|
|
char **slaves = NULL;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
while (*filename) {
|
||
|
|
char *slave = av_get_token(&filename, slave_delim);
|
||
|
|
if (!slave) {
|
||
|
|
ret = AVERROR(ENOMEM);
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
ret = av_dynarray_add_nofree(&slaves, &nb_slaves, slave);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_free(slave);
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
if (strspn(filename, slave_delim))
|
||
|
|
filename++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!(tee->slaves = av_mallocz_array(nb_slaves, sizeof(*tee->slaves)))) {
|
||
|
|
ret = AVERROR(ENOMEM);
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
tee->nb_slaves = tee->nb_alive = nb_slaves;
|
||
|
|
|
||
|
|
for (i = 0; i < nb_slaves; i++) {
|
||
|
|
|
||
|
|
tee->slaves[i].use_fifo = tee->use_fifo;
|
||
|
|
ret = av_dict_copy(&tee->slaves[i].fifo_options, tee->fifo_options, 0);
|
||
|
|
if (ret < 0)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
if ((ret = open_slave(avf, slaves[i], &tee->slaves[i])) < 0) {
|
||
|
|
ret = tee_process_slave_failure(avf, i, ret);
|
||
|
|
if (ret < 0)
|
||
|
|
goto fail;
|
||
|
|
} else {
|
||
|
|
log_slave(&tee->slaves[i], avf, AV_LOG_VERBOSE);
|
||
|
|
}
|
||
|
|
av_freep(&slaves[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = 0; i < avf->nb_streams; i++) {
|
||
|
|
int j, mapped = 0;
|
||
|
|
for (j = 0; j < tee->nb_slaves; j++)
|
||
|
|
if (tee->slaves[j].avf)
|
||
|
|
mapped += tee->slaves[j].stream_map[i] >= 0;
|
||
|
|
if (!mapped)
|
||
|
|
av_log(avf, AV_LOG_WARNING, "Input stream #%d is not mapped "
|
||
|
|
"to any slave.\n", i);
|
||
|
|
}
|
||
|
|
av_free(slaves);
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
for (i = 0; i < nb_slaves; i++)
|
||
|
|
av_freep(&slaves[i]);
|
||
|
|
close_slaves(avf);
|
||
|
|
av_free(slaves);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tee_write_trailer(AVFormatContext *avf)
|
||
|
|
{
|
||
|
|
TeeContext *tee = avf->priv_data;
|
||
|
|
int ret_all = 0, ret;
|
||
|
|
unsigned i;
|
||
|
|
|
||
|
|
for (i = 0; i < tee->nb_slaves; i++) {
|
||
|
|
if ((ret = close_slave(&tee->slaves[i])) < 0) {
|
||
|
|
ret = tee_process_slave_failure(avf, i, ret);
|
||
|
|
if (!ret_all && ret < 0)
|
||
|
|
ret_all = ret;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
av_freep(&tee->slaves);
|
||
|
|
return ret_all;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tee_write_packet(AVFormatContext *avf, AVPacket *pkt)
|
||
|
|
{
|
||
|
|
TeeContext *tee = avf->priv_data;
|
||
|
|
AVFormatContext *avf2;
|
||
|
|
AVBSFContext *bsfs;
|
||
|
|
AVPacket pkt2;
|
||
|
|
int ret_all = 0, ret;
|
||
|
|
unsigned i, s;
|
||
|
|
int s2;
|
||
|
|
|
||
|
|
for (i = 0; i < tee->nb_slaves; i++) {
|
||
|
|
if (!(avf2 = tee->slaves[i].avf))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
/* Flush slave if pkt is NULL*/
|
||
|
|
if (!pkt) {
|
||
|
|
ret = av_interleaved_write_frame(avf2, NULL);
|
||
|
|
if (ret < 0) {
|
||
|
|
ret = tee_process_slave_failure(avf, i, ret);
|
||
|
|
if (!ret_all && ret < 0)
|
||
|
|
ret_all = ret;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
s = pkt->stream_index;
|
||
|
|
s2 = tee->slaves[i].stream_map[s];
|
||
|
|
if (s2 < 0)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if ((ret = av_packet_ref(&pkt2, pkt)) < 0)
|
||
|
|
if (!ret_all) {
|
||
|
|
ret_all = ret;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
bsfs = tee->slaves[i].bsfs[s2];
|
||
|
|
pkt2.stream_index = s2;
|
||
|
|
|
||
|
|
ret = av_bsf_send_packet(bsfs, &pkt2);
|
||
|
|
if (ret < 0) {
|
||
|
|
av_log(avf, AV_LOG_ERROR, "Error while sending packet to bitstream filter: %s\n",
|
||
|
|
av_err2str(ret));
|
||
|
|
ret = tee_process_slave_failure(avf, i, ret);
|
||
|
|
if (!ret_all && ret < 0)
|
||
|
|
ret_all = ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
while(1) {
|
||
|
|
ret = av_bsf_receive_packet(bsfs, &pkt2);
|
||
|
|
if (ret == AVERROR(EAGAIN)) {
|
||
|
|
ret = 0;
|
||
|
|
break;
|
||
|
|
} else if (ret < 0) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
av_packet_rescale_ts(&pkt2, bsfs->time_base_out,
|
||
|
|
avf2->streams[s2]->time_base);
|
||
|
|
ret = av_interleaved_write_frame(avf2, &pkt2);
|
||
|
|
if (ret < 0)
|
||
|
|
break;
|
||
|
|
};
|
||
|
|
|
||
|
|
if (ret < 0) {
|
||
|
|
ret = tee_process_slave_failure(avf, i, ret);
|
||
|
|
if (!ret_all && ret < 0)
|
||
|
|
ret_all = ret;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return ret_all;
|
||
|
|
}
|
||
|
|
|
||
|
|
AVOutputFormat ff_tee_muxer = {
|
||
|
|
.name = "tee",
|
||
|
|
.long_name = NULL_IF_CONFIG_SMALL("Multiple muxer tee"),
|
||
|
|
.priv_data_size = sizeof(TeeContext),
|
||
|
|
.write_header = tee_write_header,
|
||
|
|
.write_trailer = tee_write_trailer,
|
||
|
|
.write_packet = tee_write_packet,
|
||
|
|
.priv_class = &tee_muxer_class,
|
||
|
|
.flags = AVFMT_NOFILE | AVFMT_ALLOW_FLUSH,
|
||
|
|
};
|