mirror of https://git.ffmpeg.org/ffmpeg.git
1850 lines
67 KiB
C
1850 lines
67 KiB
C
/*
|
|
* Apple HTTP Live Streaming segmenter
|
|
* Copyright (c) 2012, Luca Barbato
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include <float.h>
|
|
#include <stdint.h>
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#if CONFIG_GCRYPT
|
|
#include <gcrypt.h>
|
|
#elif CONFIG_OPENSSL
|
|
#include <openssl/rand.h>
|
|
#endif
|
|
|
|
#include "libavutil/avassert.h"
|
|
#include "libavutil/mathematics.h"
|
|
#include "libavutil/parseutils.h"
|
|
#include "libavutil/avstring.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "libavutil/random_seed.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/log.h"
|
|
#include "libavutil/time_internal.h"
|
|
|
|
#include "avformat.h"
|
|
#include "avio_internal.h"
|
|
#include "internal.h"
|
|
#include "os_support.h"
|
|
|
|
typedef enum {
|
|
HLS_START_SEQUENCE_AS_START_NUMBER = 0,
|
|
HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1,
|
|
HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss
|
|
} StartSequenceSourceType;
|
|
|
|
#define KEYSIZE 16
|
|
#define LINE_BUFFER_SIZE 1024
|
|
#define HLS_MICROSECOND_UNIT 1000000
|
|
|
|
typedef struct HLSSegment {
|
|
char filename[1024];
|
|
char sub_filename[1024];
|
|
double duration; /* in seconds */
|
|
int discont;
|
|
int64_t pos;
|
|
int64_t size;
|
|
|
|
char key_uri[LINE_BUFFER_SIZE + 1];
|
|
char iv_string[KEYSIZE*2 + 1];
|
|
|
|
struct HLSSegment *next;
|
|
} HLSSegment;
|
|
|
|
typedef enum HLSFlags {
|
|
// Generate a single media file and use byte ranges in the playlist.
|
|
HLS_SINGLE_FILE = (1 << 0),
|
|
HLS_DELETE_SEGMENTS = (1 << 1),
|
|
HLS_ROUND_DURATIONS = (1 << 2),
|
|
HLS_DISCONT_START = (1 << 3),
|
|
HLS_OMIT_ENDLIST = (1 << 4),
|
|
HLS_SPLIT_BY_TIME = (1 << 5),
|
|
HLS_APPEND_LIST = (1 << 6),
|
|
HLS_PROGRAM_DATE_TIME = (1 << 7),
|
|
HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
|
|
HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
|
|
HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
|
|
HLS_TEMP_FILE = (1 << 11),
|
|
HLS_PERIODIC_REKEY = (1 << 12),
|
|
} HLSFlags;
|
|
|
|
typedef enum {
|
|
SEGMENT_TYPE_MPEGTS,
|
|
SEGMENT_TYPE_FMP4,
|
|
} SegmentType;
|
|
|
|
typedef enum {
|
|
PLAYLIST_TYPE_NONE,
|
|
PLAYLIST_TYPE_EVENT,
|
|
PLAYLIST_TYPE_VOD,
|
|
PLAYLIST_TYPE_NB,
|
|
} PlaylistType;
|
|
|
|
typedef struct HLSContext {
|
|
const AVClass *class; // Class for private options.
|
|
unsigned number;
|
|
int64_t sequence;
|
|
int64_t start_sequence;
|
|
uint32_t start_sequence_source_type; // enum StartSequenceSourceType
|
|
AVOutputFormat *oformat;
|
|
AVOutputFormat *vtt_oformat;
|
|
|
|
AVFormatContext *avf;
|
|
AVFormatContext *vtt_avf;
|
|
|
|
float time; // Set by a private option.
|
|
float init_time; // Set by a private option.
|
|
int max_nb_segments; // Set by a private option.
|
|
#if FF_API_HLS_WRAP
|
|
int wrap; // Set by a private option.
|
|
#endif
|
|
uint32_t flags; // enum HLSFlags
|
|
uint32_t pl_type; // enum PlaylistType
|
|
char *segment_filename;
|
|
char *fmp4_init_filename;
|
|
int segment_type;
|
|
int fmp4_init_mode;
|
|
|
|
int use_localtime; ///< flag to expand filename with localtime
|
|
int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
|
|
int allowcache;
|
|
int64_t recording_time;
|
|
int has_video;
|
|
int has_subtitle;
|
|
int new_start;
|
|
double dpp; // duration per packet
|
|
int64_t start_pts;
|
|
int64_t end_pts;
|
|
double duration; // last segment duration computed so far, in seconds
|
|
int64_t start_pos; // last segment starting position
|
|
int64_t size; // last segment size
|
|
int64_t max_seg_size; // every segment file max size
|
|
int nb_entries;
|
|
int discontinuity_set;
|
|
int discontinuity;
|
|
|
|
HLSSegment *segments;
|
|
HLSSegment *last_segment;
|
|
HLSSegment *old_segments;
|
|
|
|
char *basename;
|
|
char *base_output_dirname;
|
|
char *vtt_basename;
|
|
char *vtt_m3u8_name;
|
|
char *baseurl;
|
|
char *format_options_str;
|
|
char *vtt_format_options_str;
|
|
char *subtitle_filename;
|
|
AVDictionary *format_options;
|
|
|
|
int encrypt;
|
|
char *key;
|
|
char *key_url;
|
|
char *iv;
|
|
char *key_basename;
|
|
|
|
char *key_info_file;
|
|
char key_file[LINE_BUFFER_SIZE + 1];
|
|
char key_uri[LINE_BUFFER_SIZE + 1];
|
|
char key_string[KEYSIZE*2 + 1];
|
|
char iv_string[KEYSIZE*2 + 1];
|
|
AVDictionary *vtt_format_options;
|
|
|
|
char *method;
|
|
|
|
double initial_prog_date_time;
|
|
char current_segment_final_filename_fmt[1024]; // when renaming segments
|
|
char *user_agent;
|
|
} HLSContext;
|
|
|
|
static int get_int_from_double(double val)
|
|
{
|
|
return (int)((val - (int)val) >= 0.001) ? (int)(val + 1) : (int)val;
|
|
}
|
|
|
|
static int mkdir_p(const char *path) {
|
|
int ret = 0;
|
|
char *temp = av_strdup(path);
|
|
char *pos = temp;
|
|
char tmp_ch = '\0';
|
|
|
|
if (!path || !temp) {
|
|
return -1;
|
|
}
|
|
|
|
if (!strncmp(temp, "/", 1) || !strncmp(temp, "\\", 1)) {
|
|
pos++;
|
|
} else if (!strncmp(temp, "./", 2) || !strncmp(temp, ".\\", 2)) {
|
|
pos += 2;
|
|
}
|
|
|
|
for ( ; *pos != '\0'; ++pos) {
|
|
if (*pos == '/' || *pos == '\\') {
|
|
tmp_ch = *pos;
|
|
*pos = '\0';
|
|
ret = mkdir(temp, 0755);
|
|
*pos = tmp_ch;
|
|
}
|
|
}
|
|
|
|
if ((*(pos - 1) != '/') || (*(pos - 1) != '\\')) {
|
|
ret = mkdir(temp, 0755);
|
|
}
|
|
|
|
av_free(temp);
|
|
return ret;
|
|
}
|
|
|
|
static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
|
|
{
|
|
const char *p;
|
|
char *q, buf1[20], c;
|
|
int nd, len, addchar_count;
|
|
int found_count = 0;
|
|
|
|
q = buf;
|
|
p = filename;
|
|
for (;;) {
|
|
c = *p;
|
|
if (c == '\0')
|
|
break;
|
|
if (c == '%' && *(p+1) == '%') // %%
|
|
addchar_count = 2;
|
|
else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
|
|
nd = 0;
|
|
addchar_count = 1;
|
|
while (av_isdigit(*(p + addchar_count))) {
|
|
nd = nd * 10 + *(p + addchar_count) - '0';
|
|
addchar_count++;
|
|
}
|
|
|
|
if (*(p + addchar_count) == placeholder) {
|
|
len = snprintf(buf1, sizeof(buf1), "%0*"PRId64, (number < 0) ? nd : nd++, number);
|
|
if (len < 1) // returned error or empty buf1
|
|
goto fail;
|
|
if ((q - buf + len) > buf_size - 1)
|
|
goto fail;
|
|
memcpy(q, buf1, len);
|
|
q += len;
|
|
p += (addchar_count + 1);
|
|
addchar_count = 0;
|
|
found_count++;
|
|
}
|
|
|
|
} else
|
|
addchar_count = 1;
|
|
|
|
while (addchar_count--)
|
|
if ((q - buf) < buf_size - 1)
|
|
*q++ = *p++;
|
|
else
|
|
goto fail;
|
|
}
|
|
*q = '\0';
|
|
return found_count;
|
|
fail:
|
|
*q = '\0';
|
|
return -1;
|
|
}
|
|
|
|
static void write_styp(AVIOContext *pb)
|
|
{
|
|
avio_wb32(pb, 24);
|
|
ffio_wfourcc(pb, "styp");
|
|
ffio_wfourcc(pb, "msdh");
|
|
avio_wb32(pb, 0); /* minor */
|
|
ffio_wfourcc(pb, "msdh");
|
|
ffio_wfourcc(pb, "msix");
|
|
}
|
|
|
|
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls) {
|
|
|
|
HLSSegment *segment, *previous_segment = NULL;
|
|
float playlist_duration = 0.0f;
|
|
int ret = 0, path_size, sub_path_size;
|
|
char *dirname = NULL, *p, *sub_path;
|
|
char *path = NULL;
|
|
AVDictionary *options = NULL;
|
|
AVIOContext *out = NULL;
|
|
const char *proto = NULL;
|
|
|
|
segment = hls->segments;
|
|
while (segment) {
|
|
playlist_duration += segment->duration;
|
|
segment = segment->next;
|
|
}
|
|
|
|
segment = hls->old_segments;
|
|
while (segment) {
|
|
playlist_duration -= segment->duration;
|
|
previous_segment = segment;
|
|
segment = previous_segment->next;
|
|
if (playlist_duration <= -previous_segment->duration) {
|
|
previous_segment->next = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (segment && !hls->use_localtime_mkdir) {
|
|
if (hls->segment_filename) {
|
|
dirname = av_strdup(hls->segment_filename);
|
|
} else {
|
|
dirname = av_strdup(hls->avf->filename);
|
|
}
|
|
if (!dirname) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
p = (char *)av_basename(dirname);
|
|
*p = '\0';
|
|
}
|
|
|
|
while (segment) {
|
|
av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
|
|
segment->filename);
|
|
path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
|
|
path = av_malloc(path_size);
|
|
if (!path) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
if (hls->use_localtime_mkdir)
|
|
av_strlcpy(path, segment->filename, path_size);
|
|
else { // segment->filename contains basename only
|
|
av_strlcpy(path, dirname, path_size);
|
|
av_strlcat(path, segment->filename, path_size);
|
|
}
|
|
|
|
proto = avio_find_protocol_name(s->filename);
|
|
if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
|
|
av_dict_set(&options, "method", "DELETE", 0);
|
|
if ((ret = hls->avf->io_open(hls->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0)
|
|
goto fail;
|
|
ff_format_io_close(hls->avf, &out);
|
|
} else if (unlink(path) < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
|
|
path, strerror(errno));
|
|
}
|
|
|
|
if ((segment->sub_filename[0] != '\0')) {
|
|
sub_path_size = strlen(segment->sub_filename) + 1 + (dirname ? strlen(dirname) : 0);
|
|
sub_path = av_malloc(sub_path_size);
|
|
if (!sub_path) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
av_strlcpy(sub_path, dirname, sub_path_size);
|
|
av_strlcat(sub_path, segment->sub_filename, sub_path_size);
|
|
|
|
if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
|
|
av_dict_set(&options, "method", "DELETE", 0);
|
|
if ((ret = hls->avf->io_open(hls->avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
|
|
av_free(sub_path);
|
|
goto fail;
|
|
}
|
|
ff_format_io_close(hls->avf, &out);
|
|
} else if (unlink(sub_path) < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
|
|
sub_path, strerror(errno));
|
|
}
|
|
av_free(sub_path);
|
|
}
|
|
av_freep(&path);
|
|
previous_segment = segment;
|
|
segment = previous_segment->next;
|
|
av_free(previous_segment);
|
|
}
|
|
|
|
fail:
|
|
av_free(path);
|
|
av_free(dirname);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int randomize(uint8_t *buf, int len)
|
|
{
|
|
#if CONFIG_GCRYPT
|
|
gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
|
|
return 0;
|
|
#elif CONFIG_OPENSSL
|
|
if (RAND_bytes(buf, len))
|
|
return 0;
|
|
#else
|
|
return AVERROR(ENOSYS);
|
|
#endif
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
static int do_encrypt(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret;
|
|
int len;
|
|
AVIOContext *pb;
|
|
uint8_t key[KEYSIZE];
|
|
|
|
len = strlen(hls->basename) + 4 + 1;
|
|
hls->key_basename = av_mallocz(len);
|
|
if (!hls->key_basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_strlcpy(hls->key_basename, s->filename, len);
|
|
av_strlcat(hls->key_basename, ".key", len);
|
|
|
|
if (hls->key_url) {
|
|
av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
|
|
av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
|
|
} else {
|
|
av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
|
|
av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
|
|
}
|
|
|
|
if (!*hls->iv_string) {
|
|
uint8_t iv[16] = { 0 };
|
|
char buf[33];
|
|
|
|
if (!hls->iv) {
|
|
AV_WB64(iv + 8, hls->sequence);
|
|
} else {
|
|
memcpy(iv, hls->iv, sizeof(iv));
|
|
}
|
|
ff_data_to_hex(buf, iv, sizeof(iv), 0);
|
|
buf[32] = '\0';
|
|
memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
|
|
}
|
|
|
|
if (!*hls->key_uri) {
|
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_file) {
|
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_string) {
|
|
if (!hls->key) {
|
|
if ((ret = randomize(key, sizeof(key))) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
|
|
return ret;
|
|
}
|
|
} else {
|
|
memcpy(key, hls->key, sizeof(key));
|
|
}
|
|
|
|
ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
|
|
if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, NULL)) < 0)
|
|
return ret;
|
|
avio_seek(pb, 0, SEEK_CUR);
|
|
avio_write(pb, key, KEYSIZE);
|
|
avio_close(pb);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hls_encryption_start(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret;
|
|
AVIOContext *pb;
|
|
uint8_t key[KEYSIZE];
|
|
|
|
if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"error opening key info file %s\n", hls->key_info_file);
|
|
return ret;
|
|
}
|
|
|
|
ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
|
|
hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
|
|
|
|
ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
|
|
hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
|
|
|
|
ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
|
|
hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
|
|
|
|
ff_format_io_close(s, &pb);
|
|
|
|
if (!*hls->key_uri) {
|
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_file) {
|
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
|
|
return ret;
|
|
}
|
|
|
|
ret = avio_read(pb, key, sizeof(key));
|
|
ff_format_io_close(s, &pb);
|
|
if (ret != sizeof(key)) {
|
|
av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
|
|
if (ret >= 0 || ret == AVERROR_EOF)
|
|
ret = AVERROR(EINVAL);
|
|
return ret;
|
|
}
|
|
ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
|
|
{
|
|
int len = ff_get_line(s, buf, maxlen);
|
|
while (len > 0 && av_isspace(buf[len - 1]))
|
|
buf[--len] = '\0';
|
|
return len;
|
|
}
|
|
|
|
static int hls_mux_init(AVFormatContext *s)
|
|
{
|
|
AVDictionary *options = NULL;
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc;
|
|
AVFormatContext *vtt_oc = NULL;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
int i, ret;
|
|
|
|
ret = avformat_alloc_output_context2(&hls->avf, hls->oformat, NULL, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
oc = hls->avf;
|
|
|
|
oc->filename[0] = '\0';
|
|
oc->oformat = hls->oformat;
|
|
oc->interrupt_callback = s->interrupt_callback;
|
|
oc->max_delay = s->max_delay;
|
|
oc->opaque = s->opaque;
|
|
oc->io_open = s->io_open;
|
|
oc->io_close = s->io_close;
|
|
av_dict_copy(&oc->metadata, s->metadata, 0);
|
|
|
|
if(hls->vtt_oformat) {
|
|
ret = avformat_alloc_output_context2(&hls->vtt_avf, hls->vtt_oformat, NULL, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
vtt_oc = hls->vtt_avf;
|
|
vtt_oc->oformat = hls->vtt_oformat;
|
|
av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
|
|
}
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st;
|
|
AVFormatContext *loc;
|
|
if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
|
|
loc = vtt_oc;
|
|
else
|
|
loc = oc;
|
|
|
|
if (!(st = avformat_new_stream(loc, NULL)))
|
|
return AVERROR(ENOMEM);
|
|
avcodec_parameters_copy(st->codecpar, s->streams[i]->codecpar);
|
|
if (!oc->oformat->codec_tag ||
|
|
av_codec_get_id (oc->oformat->codec_tag, s->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
|
|
av_codec_get_tag(oc->oformat->codec_tag, s->streams[i]->codecpar->codec_id) <= 0) {
|
|
st->codecpar->codec_tag = s->streams[i]->codecpar->codec_tag;
|
|
} else {
|
|
st->codecpar->codec_tag = 0;
|
|
}
|
|
|
|
st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
|
|
st->time_base = s->streams[i]->time_base;
|
|
av_dict_copy(&st->metadata, s->streams[i]->metadata, 0);
|
|
}
|
|
hls->start_pos = 0;
|
|
hls->new_start = 1;
|
|
hls->fmp4_init_mode = 0;
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
if (hls->max_seg_size > 0) {
|
|
av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
hls->fmp4_init_mode = !byterange_mode;
|
|
if ((ret = s->io_open(s, &oc->pb, hls->base_output_dirname, AVIO_FLAG_WRITE, NULL)) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", hls->fmp4_init_filename);
|
|
return ret;
|
|
}
|
|
|
|
if (hls->format_options_str) {
|
|
ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
|
|
hls->format_options_str);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
av_dict_copy(&options, hls->format_options, 0);
|
|
av_dict_set(&options, "fflags", "-autobsf", 0);
|
|
av_dict_set(&options, "movflags", "frag_custom+dash+delay_moov", 0);
|
|
ret = avformat_init_output(oc, &options);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (av_dict_count(options)) {
|
|
av_log(s, AV_LOG_ERROR, "Some of the provided format options in '%s' are not recognized\n", hls->format_options_str);
|
|
av_dict_free(&options);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_dict_free(&options);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
|
|
{
|
|
while (segment) {
|
|
if (!av_strcasecmp(segment->filename,filename))
|
|
return segment;
|
|
segment = segment->next;
|
|
}
|
|
return (HLSSegment *) NULL;
|
|
}
|
|
|
|
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls, HLSSegment *en, double duration,
|
|
int64_t pos, int64_t size)
|
|
{
|
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
|
|
strlen(hls->current_segment_final_filename_fmt)) {
|
|
av_strlcpy(hls->avf->filename, hls->current_segment_final_filename_fmt, sizeof(hls->avf->filename));
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
char * filename = av_strdup(hls->avf->filename); // %%s will be %s after strftime
|
|
if (!filename) {
|
|
av_free(en);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
|
|
filename, 's', pos + size) < 1) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_size flag\n",
|
|
filename);
|
|
av_free(filename);
|
|
av_free(en);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_free(filename);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
char * filename = av_strdup(hls->avf->filename); // %%t will be %t after strftime
|
|
if (!filename) {
|
|
av_free(en);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
|
|
filename, 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_time flag\n",
|
|
filename);
|
|
av_free(filename);
|
|
av_free(en);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_free(filename);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int sls_flag_check_duration_size_index(HLSContext *hls)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_duration hls_flag requires use_localtime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_size hls_flag requires use_localtime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_index hls_flag requires use_localtime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int sls_flag_check_duration_size(HLSContext *hls)
|
|
{
|
|
const char *proto = avio_find_protocol_name(hls->basename);
|
|
int segment_renaming_ok = proto && !strcmp(proto, "file");
|
|
int ret = 0;
|
|
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_duration hls_flag works only with file protocol segment names\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_size hls_flag works only with file protocol segment names\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void sls_flag_file_rename(HLSContext *hls, char *old_filename) {
|
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
|
|
strlen(hls->current_segment_final_filename_fmt)) {
|
|
ff_rename(old_filename, hls->avf->filename, hls);
|
|
}
|
|
}
|
|
|
|
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c)
|
|
{
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
|
|
char * filename = av_strdup(oc->filename); // %%d will be %d after strftime
|
|
if (!filename)
|
|
return AVERROR(ENOMEM);
|
|
if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
|
|
#if FF_API_HLS_WRAP
|
|
filename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
|
|
#else
|
|
filename, 'd', c->sequence) < 1) {
|
|
#endif
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_index flag\n",
|
|
filename);
|
|
av_free(filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_free(filename);
|
|
}
|
|
if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
|
|
av_strlcpy(c->current_segment_final_filename_fmt, oc->filename,
|
|
sizeof(c->current_segment_final_filename_fmt));
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
char * filename = av_strdup(oc->filename); // %%s will be %s after strftime
|
|
if (!filename)
|
|
return AVERROR(ENOMEM);
|
|
if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 's', 0) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_size flag\n",
|
|
filename);
|
|
av_free(filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_free(filename);
|
|
}
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
char * filename = av_strdup(oc->filename); // %%t will be %t after strftime
|
|
if (!filename)
|
|
return AVERROR(ENOMEM);
|
|
if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 't', 0) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_time flag\n",
|
|
filename);
|
|
av_free(filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
av_free(filename);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Create a new segment and append it to the segment list */
|
|
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration,
|
|
int64_t pos, int64_t size)
|
|
{
|
|
HLSSegment *en = av_malloc(sizeof(*en));
|
|
const char *filename;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
int ret;
|
|
|
|
if (!en)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ret = sls_flags_filename_process(s, hls, en, duration, pos, size);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
filename = av_basename(hls->avf->filename);
|
|
|
|
if (hls->use_localtime_mkdir) {
|
|
filename = hls->avf->filename;
|
|
}
|
|
if ((find_segment_by_filename(hls->segments, filename) || find_segment_by_filename(hls->old_segments, filename))
|
|
&& !byterange_mode) {
|
|
av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
|
|
}
|
|
av_strlcpy(en->filename, filename, sizeof(en->filename));
|
|
|
|
if(hls->has_subtitle)
|
|
av_strlcpy(en->sub_filename, av_basename(hls->vtt_avf->filename), sizeof(en->sub_filename));
|
|
else
|
|
en->sub_filename[0] = '\0';
|
|
|
|
en->duration = duration;
|
|
en->pos = pos;
|
|
en->size = size;
|
|
en->next = NULL;
|
|
en->discont = 0;
|
|
|
|
if (hls->discontinuity) {
|
|
en->discont = 1;
|
|
hls->discontinuity = 0;
|
|
}
|
|
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
|
|
av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
|
|
}
|
|
|
|
if (!hls->segments)
|
|
hls->segments = en;
|
|
else
|
|
hls->last_segment->next = en;
|
|
|
|
hls->last_segment = en;
|
|
|
|
// EVENT or VOD playlists imply sliding window cannot be used
|
|
if (hls->pl_type != PLAYLIST_TYPE_NONE)
|
|
hls->max_nb_segments = 0;
|
|
|
|
if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
|
|
en = hls->segments;
|
|
hls->initial_prog_date_time += en->duration;
|
|
hls->segments = en->next;
|
|
if (en && hls->flags & HLS_DELETE_SEGMENTS &&
|
|
#if FF_API_HLS_WRAP
|
|
!(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
|
|
#else
|
|
!(hls->flags & HLS_SINGLE_FILE)) {
|
|
#endif
|
|
en->next = hls->old_segments;
|
|
hls->old_segments = en;
|
|
if ((ret = hls_delete_old_segments(s, hls)) < 0)
|
|
return ret;
|
|
} else
|
|
av_free(en);
|
|
} else
|
|
hls->nb_entries++;
|
|
|
|
if (hls->max_seg_size > 0) {
|
|
return 0;
|
|
}
|
|
hls->sequence++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_playlist(AVFormatContext *s, const char *url)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVIOContext *in;
|
|
int ret = 0, is_segment = 0;
|
|
int64_t new_start_pos;
|
|
char line[1024];
|
|
const char *ptr;
|
|
const char *end;
|
|
|
|
if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
|
|
&s->interrupt_callback, NULL,
|
|
s->protocol_whitelist, s->protocol_blacklist)) < 0)
|
|
return ret;
|
|
|
|
read_chomp_line(in, line, sizeof(line));
|
|
if (strcmp(line, "#EXTM3U")) {
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto fail;
|
|
}
|
|
|
|
hls->discontinuity = 0;
|
|
while (!avio_feof(in)) {
|
|
read_chomp_line(in, line, sizeof(line));
|
|
if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
|
|
int64_t tmp_sequence = strtoll(ptr, NULL, 10);
|
|
if (tmp_sequence < hls->sequence)
|
|
av_log(hls, AV_LOG_VERBOSE,
|
|
"Found playlist sequence number was smaller """
|
|
"than specified start sequence number: %"PRId64" < %"PRId64", "
|
|
"omitting\n", tmp_sequence, hls->start_sequence);
|
|
else {
|
|
av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
|
|
hls->sequence = tmp_sequence;
|
|
}
|
|
} else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
|
|
is_segment = 1;
|
|
hls->discontinuity = 1;
|
|
} else if (av_strstart(line, "#EXTINF:", &ptr)) {
|
|
is_segment = 1;
|
|
hls->duration = atof(ptr);
|
|
} else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
|
|
ptr = av_stristr(line, "URI=\"");
|
|
if (ptr) {
|
|
ptr += strlen("URI=\"");
|
|
end = av_stristr(ptr, ",");
|
|
if (end) {
|
|
av_strlcpy(hls->key_uri, ptr, end - ptr);
|
|
} else {
|
|
av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
|
|
}
|
|
}
|
|
|
|
ptr = av_stristr(line, "IV=0x");
|
|
if (ptr) {
|
|
ptr += strlen("IV=0x");
|
|
end = av_stristr(ptr, ",");
|
|
if (end) {
|
|
av_strlcpy(hls->iv_string, ptr, end - ptr);
|
|
} else {
|
|
av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
|
|
}
|
|
}
|
|
|
|
} else if (av_strstart(line, "#", NULL)) {
|
|
continue;
|
|
} else if (line[0]) {
|
|
if (is_segment) {
|
|
is_segment = 0;
|
|
new_start_pos = avio_tell(hls->avf->pb);
|
|
hls->size = new_start_pos - hls->start_pos;
|
|
av_strlcpy(hls->avf->filename, line, sizeof(line));
|
|
ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
|
|
if (ret < 0)
|
|
goto fail;
|
|
hls->start_pos = new_start_pos;
|
|
}
|
|
}
|
|
}
|
|
|
|
fail:
|
|
avio_close(in);
|
|
return ret;
|
|
}
|
|
|
|
static void hls_free_segments(HLSSegment *p)
|
|
{
|
|
HLSSegment *en;
|
|
|
|
while(p) {
|
|
en = p;
|
|
p = p->next;
|
|
av_free(en);
|
|
}
|
|
}
|
|
|
|
static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
|
|
{
|
|
const char *proto = avio_find_protocol_name(s->filename);
|
|
int http_base_proto = proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;
|
|
|
|
if (c->method) {
|
|
av_dict_set(options, "method", c->method, 0);
|
|
} else if (http_base_proto) {
|
|
av_log(c, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
|
|
av_dict_set(options, "method", "PUT", 0);
|
|
}
|
|
if (c->user_agent)
|
|
av_dict_set(options, "user_agent", c->user_agent, 0);
|
|
|
|
}
|
|
|
|
static void write_m3u8_head_block(HLSContext *hls, AVIOContext *out, int version,
|
|
int target_duration, int64_t sequence)
|
|
{
|
|
avio_printf(out, "#EXTM3U\n");
|
|
avio_printf(out, "#EXT-X-VERSION:%d\n", version);
|
|
if (hls->allowcache == 0 || hls->allowcache == 1) {
|
|
avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
|
|
}
|
|
avio_printf(out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
|
|
avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
|
|
av_log(hls, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
|
|
}
|
|
|
|
static void hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
|
|
{
|
|
size_t len = strlen(oc->filename);
|
|
char final_filename[sizeof(oc->filename)];
|
|
|
|
av_strlcpy(final_filename, oc->filename, len);
|
|
final_filename[len-4] = '\0';
|
|
ff_rename(oc->filename, final_filename, s);
|
|
oc->filename[len-4] = '\0';
|
|
}
|
|
|
|
static int hls_window(AVFormatContext *s, int last)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
HLSSegment *en;
|
|
int target_duration = 0;
|
|
int ret = 0;
|
|
AVIOContext *out = NULL;
|
|
AVIOContext *sub_out = NULL;
|
|
char temp_filename[1024];
|
|
int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
|
|
int version = 3;
|
|
const char *proto = avio_find_protocol_name(s->filename);
|
|
int use_rename = proto && !strcmp(proto, "file");
|
|
static unsigned warned_non_file;
|
|
char *key_uri = NULL;
|
|
char *iv_string = NULL;
|
|
AVDictionary *options = NULL;
|
|
double prog_date_time = hls->initial_prog_date_time;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
|
|
if (byterange_mode) {
|
|
version = 4;
|
|
sequence = 0;
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
version = 7;
|
|
}
|
|
|
|
if (!use_rename && !warned_non_file++)
|
|
av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
|
|
|
|
set_http_options(s, &options, hls);
|
|
snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->filename);
|
|
if ((ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, &options)) < 0)
|
|
goto fail;
|
|
|
|
for (en = hls->segments; en; en = en->next) {
|
|
if (target_duration <= en->duration)
|
|
target_duration = get_int_from_double(en->duration);
|
|
}
|
|
|
|
hls->discontinuity_set = 0;
|
|
write_m3u8_head_block(hls, out, version, target_duration, sequence);
|
|
if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
|
|
avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
|
|
} else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
|
|
avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
|
|
}
|
|
|
|
if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && hls->discontinuity_set==0 ){
|
|
avio_printf(out, "#EXT-X-DISCONTINUITY\n");
|
|
hls->discontinuity_set = 1;
|
|
}
|
|
for (en = hls->segments; en; en = en->next) {
|
|
if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
|
|
av_strcasecmp(en->iv_string, iv_string))) {
|
|
avio_printf(out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
|
|
if (*en->iv_string)
|
|
avio_printf(out, ",IV=0x%s", en->iv_string);
|
|
avio_printf(out, "\n");
|
|
key_uri = en->key_uri;
|
|
iv_string = en->iv_string;
|
|
}
|
|
|
|
if (en->discont) {
|
|
avio_printf(out, "#EXT-X-DISCONTINUITY\n");
|
|
}
|
|
|
|
if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == hls->segments)) {
|
|
avio_printf(out, "#EXT-X-MAP:URI=\"%s\"", hls->fmp4_init_filename);
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
avio_printf(out, ",BYTERANGE=\"%"PRId64"@%"PRId64"\"", en->size, en->pos);
|
|
}
|
|
avio_printf(out, "\n");
|
|
} else {
|
|
if (hls->flags & HLS_ROUND_DURATIONS)
|
|
avio_printf(out, "#EXTINF:%ld,\n", lrint(en->duration));
|
|
else
|
|
avio_printf(out, "#EXTINF:%f,\n", en->duration);
|
|
if (byterange_mode)
|
|
avio_printf(out, "#EXT-X-BYTERANGE:%"PRId64"@%"PRId64"\n",
|
|
en->size, en->pos);
|
|
}
|
|
if (hls->flags & HLS_PROGRAM_DATE_TIME) {
|
|
time_t tt, wrongsecs;
|
|
int milli;
|
|
struct tm *tm, tmpbuf;
|
|
char buf0[128], buf1[128];
|
|
tt = (int64_t)prog_date_time;
|
|
milli = av_clip(lrint(1000*(prog_date_time - tt)), 0, 999);
|
|
tm = localtime_r(&tt, &tmpbuf);
|
|
strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
|
|
if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
|
|
int tz_min, dst = tm->tm_isdst;
|
|
tm = gmtime_r(&tt, &tmpbuf);
|
|
tm->tm_isdst = dst;
|
|
wrongsecs = mktime(tm);
|
|
tz_min = (abs(wrongsecs - tt) + 30) / 60;
|
|
snprintf(buf1, sizeof(buf1),
|
|
"%c%02d%02d",
|
|
wrongsecs <= tt ? '+' : '-',
|
|
tz_min / 60,
|
|
tz_min % 60);
|
|
}
|
|
avio_printf(out, "#EXT-X-PROGRAM-DATE-TIME:%s.%03d%s\n", buf0, milli, buf1);
|
|
prog_date_time += en->duration;
|
|
}
|
|
if (!((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == hls->segments))) {
|
|
if (hls->baseurl)
|
|
avio_printf(out, "%s", hls->baseurl);
|
|
avio_printf(out, "%s\n", en->filename);
|
|
}
|
|
}
|
|
|
|
if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
|
|
avio_printf(out, "#EXT-X-ENDLIST\n");
|
|
|
|
if( hls->vtt_m3u8_name ) {
|
|
if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name, AVIO_FLAG_WRITE, &options)) < 0)
|
|
goto fail;
|
|
write_m3u8_head_block(hls, sub_out, version, target_duration, sequence);
|
|
|
|
for (en = hls->segments; en; en = en->next) {
|
|
avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
|
|
if (byterange_mode)
|
|
avio_printf(sub_out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
|
|
en->size, en->pos);
|
|
if (hls->baseurl)
|
|
avio_printf(sub_out, "%s", hls->baseurl);
|
|
avio_printf(sub_out, "%s\n", en->sub_filename);
|
|
}
|
|
|
|
if (last)
|
|
avio_printf(sub_out, "#EXT-X-ENDLIST\n");
|
|
|
|
}
|
|
|
|
fail:
|
|
av_dict_free(&options);
|
|
ff_format_io_close(s, &out);
|
|
ff_format_io_close(s, &sub_out);
|
|
if (ret >= 0 && use_rename)
|
|
ff_rename(temp_filename, s->filename, s);
|
|
return ret;
|
|
}
|
|
|
|
static int hls_start(AVFormatContext *s)
|
|
{
|
|
HLSContext *c = s->priv_data;
|
|
AVFormatContext *oc = c->avf;
|
|
AVFormatContext *vtt_oc = c->vtt_avf;
|
|
AVDictionary *options = NULL;
|
|
char *filename, iv_string[KEYSIZE*2 + 1];
|
|
int err = 0;
|
|
|
|
if (c->flags & HLS_SINGLE_FILE) {
|
|
av_strlcpy(oc->filename, c->basename,
|
|
sizeof(oc->filename));
|
|
if (c->vtt_basename)
|
|
av_strlcpy(vtt_oc->filename, c->vtt_basename,
|
|
sizeof(vtt_oc->filename));
|
|
} else if (c->max_seg_size > 0) {
|
|
if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
|
|
#if FF_API_HLS_WRAP
|
|
c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
|
|
#else
|
|
c->basename, 'd', c->sequence) < 1) {
|
|
#endif
|
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -use_localtime 1 with it\n", c->basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else {
|
|
if (c->use_localtime) {
|
|
time_t now0;
|
|
struct tm *tm, tmpbuf;
|
|
time(&now0);
|
|
tm = localtime_r(&now0, &tmpbuf);
|
|
if (!strftime(oc->filename, sizeof(oc->filename), c->basename, tm)) {
|
|
av_log(oc, AV_LOG_ERROR, "Could not get segment filename with use_localtime\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
err = sls_flag_use_localtime_filename(oc, c);
|
|
if (err < 0) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (c->use_localtime_mkdir) {
|
|
const char *dir;
|
|
char *fn_copy = av_strdup(oc->filename);
|
|
if (!fn_copy) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
dir = av_dirname(fn_copy);
|
|
if (mkdir_p(dir) == -1 && errno != EEXIST) {
|
|
av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
|
|
av_free(fn_copy);
|
|
return AVERROR(errno);
|
|
}
|
|
av_free(fn_copy);
|
|
}
|
|
} else if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
|
|
#if FF_API_HLS_WRAP
|
|
c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
|
|
#else
|
|
c->basename, 'd', c->sequence) < 1) {
|
|
#endif
|
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -use_localtime 1 with it\n", c->basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if( c->vtt_basename) {
|
|
if (replace_int_data_in_filename(vtt_oc->filename, sizeof(vtt_oc->filename),
|
|
#if FF_API_HLS_WRAP
|
|
c->vtt_basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
|
|
#else
|
|
c->vtt_basename, 'd', c->sequence) < 1) {
|
|
#endif
|
|
av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->vtt_basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
}
|
|
c->number++;
|
|
|
|
set_http_options(s, &options, c);
|
|
|
|
if (c->flags & HLS_TEMP_FILE) {
|
|
av_strlcat(oc->filename, ".tmp", sizeof(oc->filename));
|
|
}
|
|
|
|
if (c->key_info_file || c->encrypt) {
|
|
if (c->key_info_file && c->encrypt) {
|
|
av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
|
|
" will use -hls_key_info_file priority\n");
|
|
}
|
|
|
|
if (c->number <= 1 || (c->flags & HLS_PERIODIC_REKEY)) {
|
|
if (c->key_info_file) {
|
|
if ((err = hls_encryption_start(s)) < 0)
|
|
goto fail;
|
|
} else {
|
|
if ((err = do_encrypt(s)) < 0)
|
|
goto fail;
|
|
}
|
|
}
|
|
if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
|
|
< 0)
|
|
goto fail;
|
|
err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
|
|
if (!err)
|
|
snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, c->sequence);
|
|
if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
|
|
goto fail;
|
|
|
|
filename = av_asprintf("crypto:%s", oc->filename);
|
|
if (!filename) {
|
|
err = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
err = s->io_open(s, &oc->pb, filename, AVIO_FLAG_WRITE, &options);
|
|
av_free(filename);
|
|
av_dict_free(&options);
|
|
if (err < 0)
|
|
return err;
|
|
} else
|
|
if ((err = s->io_open(s, &oc->pb, oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
|
|
goto fail;
|
|
if (c->vtt_basename) {
|
|
set_http_options(s, &options, c);
|
|
if ((err = s->io_open(s, &vtt_oc->pb, vtt_oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
|
|
goto fail;
|
|
}
|
|
av_dict_free(&options);
|
|
|
|
if (c->segment_type == SEGMENT_TYPE_FMP4 && !(c->flags & HLS_SINGLE_FILE)) {
|
|
write_styp(oc->pb);
|
|
} else {
|
|
/* We only require one PAT/PMT per segment. */
|
|
if (oc->oformat->priv_class && oc->priv_data) {
|
|
char period[21];
|
|
|
|
snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
|
|
|
|
av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
|
|
av_opt_set(oc->priv_data, "sdt_period", period, 0);
|
|
av_opt_set(oc->priv_data, "pat_period", period, 0);
|
|
}
|
|
}
|
|
|
|
if (c->vtt_basename) {
|
|
err = avformat_write_header(vtt_oc,NULL);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
av_dict_free(&options);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
|
|
{
|
|
char b[21];
|
|
time_t t = time(NULL);
|
|
struct tm *p, tmbuf;
|
|
HLSContext *hls = s->priv_data;
|
|
|
|
p = localtime_r(&t, &tmbuf);
|
|
// no %s support when strftime returned error or left format string unchanged
|
|
// also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
|
|
}
|
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
|
|
}
|
|
|
|
static int hls_write_header(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret, i;
|
|
char *p;
|
|
const char *pattern = "%d.ts";
|
|
const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
|
|
const char *vtt_pattern = "%d.vtt";
|
|
AVDictionary *options = NULL;
|
|
int basename_size;
|
|
int vtt_basename_size;
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
pattern = "%d.m4s";
|
|
}
|
|
if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
|
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
|
|
time_t t = time(NULL); // we will need it in either case
|
|
if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
|
|
hls->start_sequence = (int64_t)t;
|
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
|
|
char b[15];
|
|
struct tm *p, tmbuf;
|
|
if (!(p = localtime_r(&t, &tmbuf)))
|
|
return AVERROR(ENOMEM);
|
|
if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
|
|
return AVERROR(ENOMEM);
|
|
hls->start_sequence = strtoll(b, NULL, 10);
|
|
}
|
|
av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
|
|
}
|
|
|
|
hls->sequence = hls->start_sequence;
|
|
hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
|
|
hls->start_pts = AV_NOPTS_VALUE;
|
|
hls->current_segment_final_filename_fmt[0] = '\0';
|
|
|
|
if (hls->flags & HLS_PROGRAM_DATE_TIME) {
|
|
time_t now0;
|
|
time(&now0);
|
|
hls->initial_prog_date_time = now0;
|
|
}
|
|
|
|
if (hls->format_options_str) {
|
|
ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
hls->has_video +=
|
|
s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
|
|
hls->has_subtitle +=
|
|
s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
|
|
}
|
|
|
|
if (hls->has_video > 1)
|
|
av_log(s, AV_LOG_WARNING,
|
|
"More than a single video stream present, "
|
|
"expect issues decoding it.\n");
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
hls->oformat = av_guess_format("mp4", NULL, NULL);
|
|
} else {
|
|
hls->oformat = av_guess_format("mpegts", NULL, NULL);
|
|
}
|
|
|
|
if (!hls->oformat) {
|
|
ret = AVERROR_MUXER_NOT_FOUND;
|
|
goto fail;
|
|
}
|
|
|
|
if(hls->has_subtitle) {
|
|
hls->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
|
|
if (!hls->oformat) {
|
|
ret = AVERROR_MUXER_NOT_FOUND;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (hls->segment_filename) {
|
|
hls->basename = av_strdup(hls->segment_filename);
|
|
if (!hls->basename) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
pattern = ".m4s";
|
|
} else {
|
|
pattern = ".ts";
|
|
}
|
|
}
|
|
|
|
if (hls->use_localtime) {
|
|
basename_size = strlen(s->filename) + strlen(pattern_localtime_fmt) + 1;
|
|
} else {
|
|
basename_size = strlen(s->filename) + strlen(pattern) + 1;
|
|
}
|
|
hls->basename = av_malloc(basename_size);
|
|
if (!hls->basename) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
av_strlcpy(hls->basename, s->filename, basename_size);
|
|
|
|
p = strrchr(hls->basename, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
if (hls->use_localtime) {
|
|
av_strlcat(hls->basename, pattern_localtime_fmt, basename_size);
|
|
} else {
|
|
av_strlcat(hls->basename, pattern, basename_size);
|
|
}
|
|
}
|
|
|
|
if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
|
|
int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
|
|
hls->base_output_dirname = av_malloc(fmp4_init_filename_len);
|
|
if (!hls->base_output_dirname) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, fmp4_init_filename_len);
|
|
} else {
|
|
hls->base_output_dirname = av_malloc(basename_size);
|
|
if (!hls->base_output_dirname) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
av_strlcpy(hls->base_output_dirname, s->filename, basename_size);
|
|
p = strrchr(hls->base_output_dirname, '/');
|
|
if (p) {
|
|
*(p + 1) = '\0';
|
|
av_strlcat(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
|
|
} else {
|
|
av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
|
|
}
|
|
}
|
|
|
|
if (!hls->use_localtime) {
|
|
ret = sls_flag_check_duration_size_index(hls);
|
|
if (ret < 0) {
|
|
goto fail;
|
|
}
|
|
} else {
|
|
ret = sls_flag_check_duration_size(hls);
|
|
if (ret < 0) {
|
|
goto fail;
|
|
}
|
|
}
|
|
if(hls->has_subtitle) {
|
|
|
|
if (hls->flags & HLS_SINGLE_FILE)
|
|
vtt_pattern = ".vtt";
|
|
vtt_basename_size = strlen(s->filename) + strlen(vtt_pattern) + 1;
|
|
hls->vtt_basename = av_malloc(vtt_basename_size);
|
|
if (!hls->vtt_basename) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
hls->vtt_m3u8_name = av_malloc(vtt_basename_size);
|
|
if (!hls->vtt_m3u8_name ) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
av_strlcpy(hls->vtt_basename, s->filename, vtt_basename_size);
|
|
p = strrchr(hls->vtt_basename, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
if( hls->subtitle_filename ) {
|
|
strcpy(hls->vtt_m3u8_name, hls->subtitle_filename);
|
|
} else {
|
|
strcpy(hls->vtt_m3u8_name, hls->vtt_basename);
|
|
av_strlcat(hls->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
|
|
}
|
|
av_strlcat(hls->vtt_basename, vtt_pattern, vtt_basename_size);
|
|
}
|
|
|
|
if ((hls->flags & HLS_SINGLE_FILE) && (hls->segment_type == SEGMENT_TYPE_FMP4)) {
|
|
hls->fmp4_init_filename = av_strdup(hls->basename);
|
|
if (!hls->fmp4_init_filename) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if ((ret = hls_mux_init(s)) < 0)
|
|
goto fail;
|
|
|
|
if (hls->flags & HLS_APPEND_LIST) {
|
|
parse_playlist(s, s->filename);
|
|
hls->discontinuity = 1;
|
|
if (hls->init_time > 0) {
|
|
av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
|
|
" hls_init_time value will have no effect\n");
|
|
hls->init_time = 0;
|
|
hls->recording_time = hls->time * AV_TIME_BASE;
|
|
}
|
|
}
|
|
|
|
if (hls->segment_type != SEGMENT_TYPE_FMP4 || hls->flags & HLS_SINGLE_FILE) {
|
|
if ((ret = hls_start(s)) < 0)
|
|
goto fail;
|
|
}
|
|
|
|
av_dict_copy(&options, hls->format_options, 0);
|
|
ret = avformat_write_header(hls->avf, &options);
|
|
if (av_dict_count(options)) {
|
|
av_log(s, AV_LOG_ERROR, "Some of provided format options in '%s' are not recognized\n", hls->format_options_str);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
//av_assert0(s->nb_streams == hls->avf->nb_streams);
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *inner_st;
|
|
AVStream *outer_st = s->streams[i];
|
|
|
|
if (hls->max_seg_size > 0) {
|
|
if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
|
|
(outer_st->codecpar->bit_rate > hls->max_seg_size)) {
|
|
av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
|
|
"(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
|
|
outer_st->codecpar->bit_rate, hls->max_seg_size);
|
|
}
|
|
}
|
|
|
|
if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
|
|
inner_st = hls->avf->streams[i];
|
|
else if (hls->vtt_avf)
|
|
inner_st = hls->vtt_avf->streams[0];
|
|
else {
|
|
/* We have a subtitle stream, when the user does not want one */
|
|
inner_st = NULL;
|
|
continue;
|
|
}
|
|
avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
|
|
}
|
|
fail:
|
|
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_freep(&hls->fmp4_init_filename);
|
|
av_freep(&hls->basename);
|
|
av_freep(&hls->vtt_basename);
|
|
av_freep(&hls->key_basename);
|
|
if (hls->avf)
|
|
avformat_free_context(hls->avf);
|
|
if (hls->vtt_avf)
|
|
avformat_free_context(hls->vtt_avf);
|
|
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc = NULL;
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int64_t end_pts = hls->recording_time * hls->number;
|
|
int is_ref_pkt = 1;
|
|
int ret = 0, can_split = 1;
|
|
int stream_index = 0;
|
|
|
|
if (hls->sequence - hls->nb_entries > hls->start_sequence && hls->init_time > 0) {
|
|
/* reset end_pts, hls->recording_time at end of the init hls list */
|
|
int init_list_dur = hls->init_time * hls->nb_entries * AV_TIME_BASE;
|
|
int after_init_list_dur = (hls->sequence - hls->nb_entries ) * hls->time * AV_TIME_BASE;
|
|
hls->recording_time = hls->time * AV_TIME_BASE;
|
|
end_pts = init_list_dur + after_init_list_dur ;
|
|
}
|
|
|
|
if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
|
|
oc = hls->vtt_avf;
|
|
stream_index = 0;
|
|
} else {
|
|
oc = hls->avf;
|
|
stream_index = pkt->stream_index;
|
|
}
|
|
if (hls->start_pts == AV_NOPTS_VALUE) {
|
|
hls->start_pts = pkt->pts;
|
|
hls->end_pts = pkt->pts;
|
|
}
|
|
|
|
if (hls->has_video) {
|
|
can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
|
|
is_ref_pkt = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
|
|
}
|
|
if (pkt->pts == AV_NOPTS_VALUE)
|
|
is_ref_pkt = can_split = 0;
|
|
|
|
if (is_ref_pkt) {
|
|
if (hls->new_start) {
|
|
hls->new_start = 0;
|
|
hls->duration = (double)(pkt->pts - hls->end_pts)
|
|
* st->time_base.num / st->time_base.den;
|
|
hls->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
|
|
} else {
|
|
if (pkt->duration) {
|
|
hls->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
|
|
} else {
|
|
av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
|
|
hls->duration = (double)(pkt->pts - hls->end_pts) * st->time_base.num / st->time_base.den;
|
|
}
|
|
}
|
|
|
|
}
|
|
if (hls->fmp4_init_mode || can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
|
|
end_pts, AV_TIME_BASE_Q) >= 0) {
|
|
int64_t new_start_pos;
|
|
char *old_filename = av_strdup(hls->avf->filename);
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
av_write_frame(hls->avf, NULL); /* Flush any buffered data */
|
|
|
|
new_start_pos = avio_tell(hls->avf->pb);
|
|
hls->size = new_start_pos - hls->start_pos;
|
|
|
|
if (!byterange_mode) {
|
|
ff_format_io_close(s, &oc->pb);
|
|
if (hls->vtt_avf) {
|
|
ff_format_io_close(s, &hls->vtt_avf->pb);
|
|
}
|
|
}
|
|
if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
|
|
if (!(hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size <= 0))
|
|
if ((hls->avf->oformat->priv_class && hls->avf->priv_data) && hls->segment_type != SEGMENT_TYPE_FMP4)
|
|
av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
|
|
hls_rename_temp_file(s, oc);
|
|
}
|
|
|
|
if (hls->fmp4_init_mode) {
|
|
hls->number--;
|
|
}
|
|
|
|
if (!hls->fmp4_init_mode || byterange_mode)
|
|
ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
|
|
|
|
hls->start_pos = new_start_pos;
|
|
if (ret < 0) {
|
|
av_free(old_filename);
|
|
return ret;
|
|
}
|
|
|
|
hls->end_pts = pkt->pts;
|
|
hls->duration = 0;
|
|
|
|
hls->fmp4_init_mode = 0;
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
hls->number++;
|
|
} else if (hls->max_seg_size > 0) {
|
|
if (hls->start_pos >= hls->max_seg_size) {
|
|
hls->sequence++;
|
|
sls_flag_file_rename(hls, old_filename);
|
|
ret = hls_start(s);
|
|
hls->start_pos = 0;
|
|
/* When split segment by byte, the duration is short than hls_time,
|
|
* so it is not enough one segment duration as hls_time, */
|
|
hls->number--;
|
|
}
|
|
hls->number++;
|
|
} else {
|
|
sls_flag_file_rename(hls, old_filename);
|
|
ret = hls_start(s);
|
|
}
|
|
av_free(old_filename);
|
|
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
if (!hls->fmp4_init_mode || byterange_mode)
|
|
if ((ret = hls_window(s, 0)) < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ret = ff_write_chained(oc, stream_index, pkt, s, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_write_trailer(struct AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc = hls->avf;
|
|
AVFormatContext *vtt_oc = hls->vtt_avf;
|
|
char *old_filename = av_strdup(hls->avf->filename);
|
|
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
|
|
av_write_trailer(oc);
|
|
if (oc->pb) {
|
|
hls->size = avio_tell(hls->avf->pb) - hls->start_pos;
|
|
ff_format_io_close(s, &oc->pb);
|
|
|
|
if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
|
|
hls_rename_temp_file(s, oc);
|
|
}
|
|
|
|
/* after av_write_trailer, then duration + 1 duration per packet */
|
|
hls_append_segment(s, hls, hls->duration + hls->dpp, hls->start_pos, hls->size);
|
|
}
|
|
|
|
sls_flag_file_rename(hls, old_filename);
|
|
|
|
if (vtt_oc) {
|
|
if (vtt_oc->pb)
|
|
av_write_trailer(vtt_oc);
|
|
hls->size = avio_tell(hls->vtt_avf->pb) - hls->start_pos;
|
|
ff_format_io_close(s, &vtt_oc->pb);
|
|
}
|
|
av_freep(&hls->basename);
|
|
av_freep(&hls->base_output_dirname);
|
|
av_freep(&hls->key_basename);
|
|
avformat_free_context(oc);
|
|
|
|
hls->avf = NULL;
|
|
hls_window(s, 1);
|
|
|
|
av_freep(&hls->fmp4_init_filename);
|
|
if (vtt_oc) {
|
|
av_freep(&hls->vtt_basename);
|
|
av_freep(&hls->vtt_m3u8_name);
|
|
avformat_free_context(vtt_oc);
|
|
}
|
|
|
|
hls_free_segments(hls->segments);
|
|
hls_free_segments(hls->old_segments);
|
|
av_free(old_filename);
|
|
return 0;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(HLSContext, x)
|
|
#define E AV_OPT_FLAG_ENCODING_PARAM
|
|
static const AVOption options[] = {
|
|
{"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
|
|
{"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
|
|
{"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
|
|
{"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
|
|
{"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_vtt_options","set hls vtt list of options for the container format used for hls", OFFSET(vtt_format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
#if FF_API_HLS_WRAP
|
|
{"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
|
|
#endif
|
|
{"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
|
|
{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
|
|
{"hls_key_info_file", "file with key URI and key file path", OFFSET(key_info_file), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
|
|
{"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
|
|
{"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
|
|
{"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, "segment_type"},
|
|
{"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
|
|
{"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, "segment_type"},
|
|
{"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
|
|
{"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
|
|
{"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, "flags"},
|
|
{"temp_file", "write segment to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
|
|
{"delete_segments", "delete segment files that are no longer part of the playlist", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DELETE_SEGMENTS }, 0, UINT_MAX, E, "flags"},
|
|
{"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
|
|
{"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
|
|
{"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
|
|
{"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, "flags"},
|
|
{"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, "flags"},
|
|
{"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, "flags"},
|
|
{"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
|
|
{"use_localtime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"use_localtime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"hls_playlist_type", "set the HLS playlist type", OFFSET(pl_type), AV_OPT_TYPE_INT, {.i64 = PLAYLIST_TYPE_NONE }, 0, PLAYLIST_TYPE_NB-1, E, "pl_type" },
|
|
{"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
|
|
{"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
|
|
{"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_AS_FORMATTED_DATETIME, E, "start_sequence_source_type" },
|
|
{"generic", "start_number value (default)", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"epoch", "seconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"datetime", "current datetime as YYYYMMDDhhmmss", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_FORMATTED_DATETIME }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass hls_class = {
|
|
.class_name = "hls muxer",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
|
|
AVOutputFormat ff_hls_muxer = {
|
|
.name = "hls",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
|
|
.extensions = "m3u8",
|
|
.priv_data_size = sizeof(HLSContext),
|
|
.audio_codec = AV_CODEC_ID_AAC,
|
|
.video_codec = AV_CODEC_ID_H264,
|
|
.subtitle_codec = AV_CODEC_ID_WEBVTT,
|
|
.flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
|
|
.write_header = hls_write_header,
|
|
.write_packet = hls_write_packet,
|
|
.write_trailer = hls_write_trailer,
|
|
.priv_class = &hls_class,
|
|
};
|