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FFmpeg/tools/ismindex.c
Andreas Rheinhardt 790f793844 avutil/common: Don't auto-include mem.h 
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00

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/*
* Copyright (c) 2012 Martin Storsjo
*
* 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
*/
/*
* To create a simple file for smooth streaming:
* ffmpeg <normal input/transcoding options> -movflags frag_keyframe foo.ismv
* ismindex -n foo foo.ismv
* This step creates foo.ism and foo.ismc that is required by IIS for
* serving it.
*
* With -ismf, it also creates foo.ismf, which maps fragment names to
* start-end offsets in the ismv, for use in your own streaming server.
*
* By adding -path-prefix path/, the produced foo.ism will refer to the
* files foo.ismv as "path/foo.ismv" - the prefix for the generated ismc
* file can be set with the -ismc-prefix option similarly.
*
* To pre-split files for serving as static files by a web server without
* any extra server support, create the ismv file as above, and split it:
* ismindex -split foo.ismv
* This step creates a file Manifest and directories QualityLevel(...),
* that can be read directly by a smooth streaming player.
*
* The -output dir option can be used to request that output files
* (both .ism/.ismc, or Manifest/QualityLevels* when splitting)
* should be written to this directory instead of in the current directory.
* (The directory itself isn't created if it doesn't already exist.)
*/
#include <stdio.h>
#include <string.h>
#include "libavformat/avformat.h"
#include "libavformat/isom.h"
#include "libavformat/os_support.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem.h"
static int usage(const char *argv0, int ret)
{
fprintf(stderr, "%s [-split] [-ismf] [-n basename] [-path-prefix prefix] "
"[-ismc-prefix prefix] [-output dir] file1 [file2] ...\n", argv0);
return ret;
}
struct MoofOffset {
int64_t time;
int64_t offset;
int64_t duration;
};
struct Track {
const char *name;
int64_t duration;
int bitrate;
int track_id;
int is_audio, is_video;
int width, height;
int chunks;
int sample_rate, channels;
uint8_t *codec_private;
int codec_private_size;
struct MoofOffset *offsets;
int timescale;
const char *fourcc;
int blocksize;
int tag;
};
struct Tracks {
int nb_tracks;
int64_t duration;
struct Track **tracks;
int video_track, audio_track;
int nb_video_tracks, nb_audio_tracks;
};
static int expect_tag(int32_t got_tag, int32_t expected_tag) {
if (got_tag != expected_tag) {
char got_tag_str[4], expected_tag_str[4];
AV_WB32(got_tag_str, got_tag);
AV_WB32(expected_tag_str, expected_tag);
fprintf(stderr, "wanted tag %.4s, got %.4s\n", expected_tag_str,
got_tag_str);
return -1;
}
return 0;
}
static int copy_tag(AVIOContext *in, AVIOContext *out, int32_t tag_name)
{
int32_t size, tag;
size = avio_rb32(in);
tag = avio_rb32(in);
avio_wb32(out, size);
avio_wb32(out, tag);
if (expect_tag(tag, tag_name) != 0)
return -1;
size -= 8;
while (size > 0) {
char buf[1024];
int len = FFMIN(sizeof(buf), size);
int got;
if ((got = avio_read(in, buf, len)) != len) {
fprintf(stderr, "short read, wanted %d, got %d\n", len, got);
break;
}
avio_write(out, buf, len);
size -= len;
}
return 0;
}
static int skip_tag(AVIOContext *in, int32_t tag_name)
{
int64_t pos = avio_tell(in);
int32_t size, tag;
size = avio_rb32(in);
tag = avio_rb32(in);
if (expect_tag(tag, tag_name) != 0)
return -1;
avio_seek(in, pos + size, SEEK_SET);
return 0;
}
static int write_fragment(const char *filename, AVIOContext *in)
{
AVIOContext *out = NULL;
int ret;
if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, NULL, NULL)) < 0) {
char errbuf[100];
av_strerror(ret, errbuf, sizeof(errbuf));
fprintf(stderr, "Unable to open %s: %s\n", filename, errbuf);
return ret;
}
ret = copy_tag(in, out, MKBETAG('m', 'o', 'o', 'f'));
if (!ret)
ret = copy_tag(in, out, MKBETAG('m', 'd', 'a', 't'));
avio_flush(out);
avio_close(out);
return ret;
}
static int skip_fragment(AVIOContext *in)
{
int ret;
ret = skip_tag(in, MKBETAG('m', 'o', 'o', 'f'));
if (!ret)
ret = skip_tag(in, MKBETAG('m', 'd', 'a', 't'));
return ret;
}
static int write_fragments(struct Tracks *tracks, int start_index,
AVIOContext *in, const char *basename,
int split, int ismf, const char* output_prefix)
{
char dirname[2048], filename[2048], idxname[2048];
int i, j, ret = 0, fragment_ret;
FILE* out = NULL;
if (ismf) {
snprintf(idxname, sizeof(idxname), "%s%s.ismf", output_prefix, basename);
out = fopen(idxname, "w");
if (!out) {
ret = AVERROR(errno);
perror(idxname);
goto fail;
}
}
for (i = start_index; i < tracks->nb_tracks; i++) {
struct Track *track = tracks->tracks[i];
const char *type = track->is_video ? "video" : "audio";
snprintf(dirname, sizeof(dirname), "%sQualityLevels(%d)", output_prefix, track->bitrate);
if (split) {
if (mkdir(dirname, 0777) == -1 && errno != EEXIST) {
ret = AVERROR(errno);
perror(dirname);
goto fail;
}
}
for (j = 0; j < track->chunks; j++) {
snprintf(filename, sizeof(filename), "%s/Fragments(%s=%"PRId64")",
dirname, type, track->offsets[j].time);
avio_seek(in, track->offsets[j].offset, SEEK_SET);
if (ismf)
fprintf(out, "%s %"PRId64, filename, avio_tell(in));
if (split)
fragment_ret = write_fragment(filename, in);
else
fragment_ret = skip_fragment(in);
if (ismf)
fprintf(out, " %"PRId64"\n", avio_tell(in));
if (fragment_ret != 0) {
fprintf(stderr, "failed fragment %d in track %d (%s)\n", j,
track->track_id, track->name);
ret = fragment_ret;
}
}
}
fail:
if (out)
fclose(out);
return ret;
}
static int64_t read_trun_duration(AVIOContext *in, int default_duration,
int64_t end)
{
int64_t dts = 0;
int64_t pos;
int flags, i;
int entries;
int64_t first_pts = 0;
int64_t max_pts = 0;
avio_r8(in); /* version */
flags = avio_rb24(in);
if (default_duration <= 0 && !(flags & MOV_TRUN_SAMPLE_DURATION)) {
fprintf(stderr, "No sample duration in trun flags\n");
return -1;
}
entries = avio_rb32(in);
if (flags & MOV_TRUN_DATA_OFFSET) avio_rb32(in);
if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) avio_rb32(in);
pos = avio_tell(in);
for (i = 0; i < entries && pos < end; i++) {
int sample_duration = default_duration;
int64_t pts = dts;
if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(in);
if (flags & MOV_TRUN_SAMPLE_SIZE) avio_rb32(in);
if (flags & MOV_TRUN_SAMPLE_FLAGS) avio_rb32(in);
if (flags & MOV_TRUN_SAMPLE_CTS) pts += avio_rb32(in);
if (sample_duration < 0) {
fprintf(stderr, "Negative sample duration %d\n", sample_duration);
return -1;
}
if (i == 0)
first_pts = pts;
max_pts = FFMAX(max_pts, pts + sample_duration);
dts += sample_duration;
pos = avio_tell(in);
}
return max_pts - first_pts;
}
static int64_t read_moof_duration(AVIOContext *in, int64_t offset)
{
int64_t ret = -1;
int32_t moof_size, size, tag;
int64_t pos = 0;
int default_duration = 0;
avio_seek(in, offset, SEEK_SET);
moof_size = avio_rb32(in);
tag = avio_rb32(in);
if (expect_tag(tag, MKBETAG('m', 'o', 'o', 'f')) != 0)
goto fail;
while (pos < offset + moof_size) {
pos = avio_tell(in);
size = avio_rb32(in);
tag = avio_rb32(in);
if (tag == MKBETAG('t', 'r', 'a', 'f')) {
int64_t traf_pos = pos;
int64_t traf_size = size;
while (pos < traf_pos + traf_size) {
pos = avio_tell(in);
size = avio_rb32(in);
tag = avio_rb32(in);
if (tag == MKBETAG('t', 'f', 'h', 'd')) {
int flags = 0;
avio_r8(in); /* version */
flags = avio_rb24(in);
avio_rb32(in); /* track_id */
if (flags & MOV_TFHD_BASE_DATA_OFFSET)
avio_rb64(in);
if (flags & MOV_TFHD_STSD_ID)
avio_rb32(in);
if (flags & MOV_TFHD_DEFAULT_DURATION)
default_duration = avio_rb32(in);
}
if (tag == MKBETAG('t', 'r', 'u', 'n')) {
return read_trun_duration(in, default_duration,
pos + size);
}
avio_seek(in, pos + size, SEEK_SET);
}
fprintf(stderr, "Couldn't find trun\n");
goto fail;
}
avio_seek(in, pos + size, SEEK_SET);
}
fprintf(stderr, "Couldn't find traf\n");
fail:
return ret;
}
static int read_tfra(struct Tracks *tracks, int start_index, AVIOContext *f)
{
int ret = AVERROR_EOF, track_id;
int version, fieldlength, i, j;
int64_t pos = avio_tell(f);
uint32_t size = avio_rb32(f);
struct Track *track = NULL;
if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a'))
goto fail;
version = avio_r8(f);
avio_rb24(f);
track_id = avio_rb32(f); /* track id */
for (i = start_index; i < tracks->nb_tracks && !track; i++)
if (tracks->tracks[i]->track_id == track_id)
track = tracks->tracks[i];
if (!track) {
/* Ok, continue parsing the next atom */
ret = 0;
goto fail;
}
fieldlength = avio_rb32(f);
track->chunks = avio_rb32(f);
track->offsets = av_calloc(track->chunks, sizeof(*track->offsets));
if (!track->offsets) {
track->chunks = 0;
ret = AVERROR(ENOMEM);
goto fail;
}
// The duration here is always the difference between consecutive
// start times.
for (i = 0; i < track->chunks; i++) {
if (version == 1) {
track->offsets[i].time = avio_rb64(f);
track->offsets[i].offset = avio_rb64(f);
} else {
track->offsets[i].time = avio_rb32(f);
track->offsets[i].offset = avio_rb32(f);
}
for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
avio_r8(f);
for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
avio_r8(f);
for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
avio_r8(f);
if (i > 0)
track->offsets[i - 1].duration = track->offsets[i].time -
track->offsets[i - 1].time;
}
if (track->chunks > 0) {
track->offsets[track->chunks - 1].duration = track->offsets[0].time +
track->duration -
track->offsets[track->chunks - 1].time;
}
// Now try to read the actual durations from the trun sample data.
for (i = 0; i < track->chunks; i++) {
int64_t duration = read_moof_duration(f, track->offsets[i].offset);
if (duration > 0 && llabs(duration - track->offsets[i].duration) > 3) {
// 3 allows for integer duration to drift a few units,
// e.g., for 1/3 durations
track->offsets[i].duration = duration;
}
}
if (track->chunks > 0) {
if (track->offsets[track->chunks - 1].duration <= 0) {
fprintf(stderr, "Calculated last chunk duration for track %d "
"was non-positive (%"PRId64"), probably due to missing "
"fragments ", track->track_id,
track->offsets[track->chunks - 1].duration);
if (track->chunks > 1) {
track->offsets[track->chunks - 1].duration =
track->offsets[track->chunks - 2].duration;
} else {
track->offsets[track->chunks - 1].duration = 1;
}
fprintf(stderr, "corrected to %"PRId64"\n",
track->offsets[track->chunks - 1].duration);
track->duration = track->offsets[track->chunks - 1].time +
track->offsets[track->chunks - 1].duration -
track->offsets[0].time;
fprintf(stderr, "Track duration corrected to %"PRId64"\n",
track->duration);
}
}
ret = 0;
fail:
avio_seek(f, pos + size, SEEK_SET);
return ret;
}
static int read_mfra(struct Tracks *tracks, int start_index,
const char *file, int split, int ismf,
const char *basename, const char* output_prefix)
{
int err = 0;
const char* err_str = "";
AVIOContext *f = NULL;
int32_t mfra_size;
if ((err = avio_open2(&f, file, AVIO_FLAG_READ, NULL, NULL)) < 0)
goto fail;
avio_seek(f, avio_size(f) - 4, SEEK_SET);
mfra_size = avio_rb32(f);
avio_seek(f, -mfra_size, SEEK_CUR);
if (avio_rb32(f) != mfra_size) {
err = AVERROR_INVALIDDATA;
err_str = "mfra size mismatch";
goto fail;
}
if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
err = AVERROR_INVALIDDATA;
err_str = "mfra tag mismatch";
goto fail;
}
while (!read_tfra(tracks, start_index, f)) {
/* Empty */
}
if (split || ismf)
err = write_fragments(tracks, start_index, f, basename, split, ismf,
output_prefix);
err_str = "error in write_fragments";
fail:
if (f)
avio_close(f);
if (err)
fprintf(stderr, "Unable to read the MFRA atom in %s (%s)\n", file, err_str);
return err;
}
static int get_private_data(struct Track *track, AVCodecParameters *codecpar)
{
track->codec_private_size = 0;
track->codec_private = av_mallocz(codecpar->extradata_size);
if (!track->codec_private)
return AVERROR(ENOMEM);
track->codec_private_size = codecpar->extradata_size;
memcpy(track->codec_private, codecpar->extradata, codecpar->extradata_size);
return 0;
}
static int get_video_private_data(struct Track *track, AVCodecParameters *codecpar)
{
AVIOContext *io = NULL;
uint16_t sps_size, pps_size;
int err;
if (codecpar->codec_id == AV_CODEC_ID_VC1)
return get_private_data(track, codecpar);
if ((err = avio_open_dyn_buf(&io)) < 0)
goto fail;
err = AVERROR(EINVAL);
if (codecpar->extradata_size < 11 || codecpar->extradata[0] != 1)
goto fail;
sps_size = AV_RB16(&codecpar->extradata[6]);
if (11 + sps_size > codecpar->extradata_size)
goto fail;
avio_wb32(io, 0x00000001);
avio_write(io, &codecpar->extradata[8], sps_size);
pps_size = AV_RB16(&codecpar->extradata[9 + sps_size]);
if (11 + sps_size + pps_size > codecpar->extradata_size)
goto fail;
avio_wb32(io, 0x00000001);
avio_write(io, &codecpar->extradata[11 + sps_size], pps_size);
err = 0;
fail:
track->codec_private_size = avio_close_dyn_buf(io, &track->codec_private);
return err;
}
static int handle_file(struct Tracks *tracks, const char *file, int split,
int ismf, const char *basename,
const char* output_prefix)
{
AVFormatContext *ctx = NULL;
int err = 0, i, orig_tracks = tracks->nb_tracks;
char errbuf[50], *ptr;
struct Track *track;
err = avformat_open_input(&ctx, file, NULL, NULL);
if (err < 0) {
av_strerror(err, errbuf, sizeof(errbuf));
fprintf(stderr, "Unable to open %s: %s\n", file, errbuf);
return 1;
}
err = avformat_find_stream_info(ctx, NULL);
if (err < 0) {
av_strerror(err, errbuf, sizeof(errbuf));
fprintf(stderr, "Unable to identify %s: %s\n", file, errbuf);
goto fail;
}
if (ctx->nb_streams < 1) {
fprintf(stderr, "No streams found in %s\n", file);
goto fail;
}
for (i = 0; i < ctx->nb_streams; i++) {
struct Track **temp;
AVStream *st = ctx->streams[i];
if (st->codecpar->bit_rate == 0) {
fprintf(stderr, "Skipping track %d in %s as it has zero bitrate\n",
st->id, file);
continue;
}
track = av_mallocz(sizeof(*track));
if (!track) {
err = AVERROR(ENOMEM);
goto fail;
}
temp = av_realloc_array(tracks->tracks,
tracks->nb_tracks + 1,
sizeof(*tracks->tracks));
if (!temp) {
av_free(track);
err = AVERROR(ENOMEM);
goto fail;
}
tracks->tracks = temp;
tracks->tracks[tracks->nb_tracks] = track;
track->name = file;
if ((ptr = strrchr(file, '/')))
track->name = ptr + 1;
track->bitrate = st->codecpar->bit_rate;
track->track_id = st->id;
track->timescale = st->time_base.den;
track->duration = st->duration;
track->is_audio = st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
track->is_video = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
if (!track->is_audio && !track->is_video) {
fprintf(stderr,
"Track %d in %s is neither video nor audio, skipping\n",
track->track_id, file);
av_freep(&tracks->tracks[tracks->nb_tracks]);
continue;
}
tracks->duration = FFMAX(tracks->duration,
av_rescale_rnd(track->duration, AV_TIME_BASE,
track->timescale, AV_ROUND_UP));
if (track->is_audio) {
if (tracks->audio_track < 0)
tracks->audio_track = tracks->nb_tracks;
tracks->nb_audio_tracks++;
track->channels = st->codecpar->ch_layout.nb_channels;
track->sample_rate = st->codecpar->sample_rate;
if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
track->fourcc = "AACL";
track->tag = 255;
track->blocksize = 4;
} else if (st->codecpar->codec_id == AV_CODEC_ID_WMAPRO) {
track->fourcc = "WMAP";
track->tag = st->codecpar->codec_tag;
track->blocksize = st->codecpar->block_align;
}
get_private_data(track, st->codecpar);
}
if (track->is_video) {
if (tracks->video_track < 0)
tracks->video_track = tracks->nb_tracks;
tracks->nb_video_tracks++;
track->width = st->codecpar->width;
track->height = st->codecpar->height;
if (st->codecpar->codec_id == AV_CODEC_ID_H264)
track->fourcc = "H264";
else if (st->codecpar->codec_id == AV_CODEC_ID_VC1)
track->fourcc = "WVC1";
get_video_private_data(track, st->codecpar);
}
tracks->nb_tracks++;
}
avformat_close_input(&ctx);
err = read_mfra(tracks, orig_tracks, file, split, ismf, basename,
output_prefix);
fail:
if (ctx)
avformat_close_input(&ctx);
return err;
}
static void output_server_manifest(struct Tracks *tracks, const char *basename,
const char *output_prefix,
const char *path_prefix,
const char *ismc_prefix)
{
char filename[1000];
FILE *out;
int i;
snprintf(filename, sizeof(filename), "%s%s.ism", output_prefix, basename);
out = fopen(filename, "w");
if (!out) {
perror(filename);
return;
}
fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
fprintf(out, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
fprintf(out, "\t<head>\n");
fprintf(out, "\t\t<meta name=\"clientManifestRelativePath\" "
"content=\"%s%s.ismc\" />\n", ismc_prefix, basename);
fprintf(out, "\t</head>\n");
fprintf(out, "\t<body>\n");
fprintf(out, "\t\t<switch>\n");
for (i = 0; i < tracks->nb_tracks; i++) {
struct Track *track = tracks->tracks[i];
const char *type = track->is_video ? "video" : "audio";
fprintf(out, "\t\t\t<%s src=\"%s%s\" systemBitrate=\"%d\">\n",
type, path_prefix, track->name, track->bitrate);
fprintf(out, "\t\t\t\t<param name=\"trackID\" value=\"%d\" "
"valueType=\"data\" />\n", track->track_id);
fprintf(out, "\t\t\t</%s>\n", type);
}
fprintf(out, "\t\t</switch>\n");
fprintf(out, "\t</body>\n");
fprintf(out, "</smil>\n");
fclose(out);
}
static void print_track_chunks(FILE *out, struct Tracks *tracks, int main,
const char *type)
{
int i, j;
int64_t pos = 0;
struct Track *track = tracks->tracks[main];
int should_print_time_mismatch = 1;
for (i = 0; i < track->chunks; i++) {
for (j = main + 1; j < tracks->nb_tracks; j++) {
if (tracks->tracks[j]->is_audio == track->is_audio) {
if (track->offsets[i].duration != tracks->tracks[j]->offsets[i].duration) {
fprintf(stderr, "Mismatched duration of %s chunk %d in %s (%d) and %s (%d)\n",
type, i, track->name, main, tracks->tracks[j]->name, j);
should_print_time_mismatch = 1;
}
if (track->offsets[i].time != tracks->tracks[j]->offsets[i].time) {
if (should_print_time_mismatch)
fprintf(stderr, "Mismatched (start) time of %s chunk %d in %s (%d) and %s (%d)\n",
type, i, track->name, main, tracks->tracks[j]->name, j);
should_print_time_mismatch = 0;
}
}
}
fprintf(out, "\t\t<c n=\"%d\" d=\"%"PRId64"\" ",
i, track->offsets[i].duration);
if (pos != track->offsets[i].time) {
fprintf(out, "t=\"%"PRId64"\" ", track->offsets[i].time);
pos = track->offsets[i].time;
}
pos += track->offsets[i].duration;
fprintf(out, "/>\n");
}
}
static void output_client_manifest(struct Tracks *tracks, const char *basename,
const char *output_prefix, int split)
{
char filename[1000];
FILE *out;
int i, j;
if (split)
snprintf(filename, sizeof(filename), "%sManifest", output_prefix);
else
snprintf(filename, sizeof(filename), "%s%s.ismc", output_prefix, basename);
out = fopen(filename, "w");
if (!out) {
perror(filename);
return;
}
fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
fprintf(out, "<SmoothStreamingMedia MajorVersion=\"2\" MinorVersion=\"0\" "
"Duration=\"%"PRId64 "\">\n", tracks->duration * 10);
if (tracks->video_track >= 0) {
struct Track *track = tracks->tracks[tracks->video_track];
struct Track *first_track = track;
int index = 0;
fprintf(out,
"\t<StreamIndex Type=\"video\" QualityLevels=\"%d\" "
"Chunks=\"%d\" "
"Url=\"QualityLevels({bitrate})/Fragments(video={start time})\">\n",
tracks->nb_video_tracks, track->chunks);
for (i = 0; i < tracks->nb_tracks; i++) {
track = tracks->tracks[i];
if (!track->is_video)
continue;
fprintf(out,
"\t\t<QualityLevel Index=\"%d\" Bitrate=\"%d\" "
"FourCC=\"%s\" MaxWidth=\"%d\" MaxHeight=\"%d\" "
"CodecPrivateData=\"",
index, track->bitrate, track->fourcc, track->width, track->height);
for (j = 0; j < track->codec_private_size; j++)
fprintf(out, "%02X", track->codec_private[j]);
fprintf(out, "\" />\n");
index++;
if (track->chunks != first_track->chunks)
fprintf(stderr, "Mismatched number of video chunks in %s (id: %d, chunks %d) and %s (id: %d, chunks %d)\n",
track->name, track->track_id, track->chunks, first_track->name, first_track->track_id, first_track->chunks);
}
print_track_chunks(out, tracks, tracks->video_track, "video");
fprintf(out, "\t</StreamIndex>\n");
}
if (tracks->audio_track >= 0) {
struct Track *track = tracks->tracks[tracks->audio_track];
struct Track *first_track = track;
int index = 0;
fprintf(out,
"\t<StreamIndex Type=\"audio\" QualityLevels=\"%d\" "
"Chunks=\"%d\" "
"Url=\"QualityLevels({bitrate})/Fragments(audio={start time})\">\n",
tracks->nb_audio_tracks, track->chunks);
for (i = 0; i < tracks->nb_tracks; i++) {
track = tracks->tracks[i];
if (!track->is_audio)
continue;
fprintf(out,
"\t\t<QualityLevel Index=\"%d\" Bitrate=\"%d\" "
"FourCC=\"%s\" SamplingRate=\"%d\" Channels=\"%d\" "
"BitsPerSample=\"16\" PacketSize=\"%d\" "
"AudioTag=\"%d\" CodecPrivateData=\"",
index, track->bitrate, track->fourcc, track->sample_rate,
track->channels, track->blocksize, track->tag);
for (j = 0; j < track->codec_private_size; j++)
fprintf(out, "%02X", track->codec_private[j]);
fprintf(out, "\" />\n");
index++;
if (track->chunks != first_track->chunks)
fprintf(stderr, "Mismatched number of audio chunks in %s and %s\n",
track->name, first_track->name);
}
print_track_chunks(out, tracks, tracks->audio_track, "audio");
fprintf(out, "\t</StreamIndex>\n");
}
fprintf(out, "</SmoothStreamingMedia>\n");
fclose(out);
}
static void clean_tracks(struct Tracks *tracks)
{
int i;
for (i = 0; i < tracks->nb_tracks; i++) {
av_freep(&tracks->tracks[i]->codec_private);
av_freep(&tracks->tracks[i]->offsets);
av_freep(&tracks->tracks[i]);
}
av_freep(&tracks->tracks);
tracks->nb_tracks = 0;
}
int main(int argc, char **argv)
{
const char *basename = NULL;
const char *path_prefix = "", *ismc_prefix = "";
const char *output_prefix = "";
char output_prefix_buf[2048];
int split = 0, ismf = 0, i;
struct Tracks tracks = { 0, .video_track = -1, .audio_track = -1 };
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-n")) {
basename = argv[i + 1];
i++;
} else if (!strcmp(argv[i], "-path-prefix")) {
path_prefix = argv[i + 1];
i++;
} else if (!strcmp(argv[i], "-ismc-prefix")) {
ismc_prefix = argv[i + 1];
i++;
} else if (!strcmp(argv[i], "-output")) {
output_prefix = argv[i + 1];
i++;
if (output_prefix[strlen(output_prefix) - 1] != '/') {
snprintf(output_prefix_buf, sizeof(output_prefix_buf),
"%s/", output_prefix);
output_prefix = output_prefix_buf;
}
} else if (!strcmp(argv[i], "-split")) {
split = 1;
} else if (!strcmp(argv[i], "-ismf")) {
ismf = 1;
} else if (argv[i][0] == '-') {
return usage(argv[0], 1);
} else {
if (!basename)
ismf = 0;
if (handle_file(&tracks, argv[i], split, ismf,
basename, output_prefix))
return 1;
}
}
if (!tracks.nb_tracks || (!basename && !split))
return usage(argv[0], 1);
if (!split)
output_server_manifest(&tracks, basename, output_prefix,
path_prefix, ismc_prefix);
output_client_manifest(&tracks, basename, output_prefix, split);
clean_tracks(&tracks);
return 0;
}
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