* 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 <sys/stat.h>
-#ifdef _WIN32
-#include <io.h>
-#define mkdir(a, b) mkdir(a)
-#endif
#include "libavformat/avformat.h"
+#include "libavformat/isom.h"
+#include "libavformat/os_support.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
static int usage(const char *argv0, int ret)
{
- fprintf(stderr, "%s [-split] [-n basename] file1 [file2] ...\n", argv0);
+ 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;
- int duration;
+ int64_t duration;
};
-struct VideoFile {
+struct Track {
const char *name;
int64_t duration;
int bitrate;
int tag;
};
-struct VideoFiles {
- int nb_files;
+struct Tracks {
+ int nb_tracks;
int64_t duration;
- struct VideoFile **files;
- int video_file, audio_file;
- int nb_video_files, nb_audio_files;
+ 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;
tag = avio_rb32(in);
avio_wb32(out, size);
avio_wb32(out, tag);
- if (tag != tag_name)
+ if (expect_tag(tag, tag_name) != 0)
return -1;
size -= 8;
while (size > 0) {
char buf[1024];
int len = FFMIN(sizeof(buf), size);
- if (avio_read(in, buf, len) != len)
+ 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)
+ 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;
- copy_tag(in, out, MKBETAG('m', 'o', 'o', 'f'));
- copy_tag(in, out, MKBETAG('m', 'd', 'a', 't'));
+ }
+ 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 write_fragments(struct VideoFiles *files, int start_index,
- AVIOContext *in)
+static int skip_fragment(AVIOContext *in)
{
- char dirname[100], filename[500];
- int i, j;
+ int ret;
+ ret = skip_tag(in, MKBETAG('m', 'o', 'o', 'f'));
+ if (!ret)
+ ret = skip_tag(in, MKBETAG('m', 'd', 'a', 't'));
+ return ret;
+}
- for (i = start_index; i < files->nb_files; i++) {
- struct VideoFile *vf = files->files[i];
- const char *type = vf->is_video ? "video" : "audio";
- snprintf(dirname, sizeof(dirname), "QualityLevels(%d)", vf->bitrate);
- mkdir(dirname, 0777);
- for (j = 0; j < vf->chunks; j++) {
+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, vf->offsets[j].time);
- avio_seek(in, vf->offsets[j].offset, SEEK_SET);
- write_fragment(filename, in);
+ 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;
+ }
}
}
- return 0;
+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 VideoFiles *files, int start_index, AVIOContext *f)
+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 VideoFile *vf = NULL;
+ 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 < files->nb_files && !vf; i++)
- if (files->files[i]->track_id == track_id)
- vf = files->files[i];
- if (!vf) {
+ 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);
- vf->chunks = avio_rb32(f);
- vf->offsets = av_mallocz(sizeof(*vf->offsets) * vf->chunks);
- if (!vf->offsets) {
+ track->chunks = avio_rb32(f);
+ track->offsets = av_mallocz(sizeof(*track->offsets) * track->chunks);
+ if (!track->offsets) {
ret = AVERROR(ENOMEM);
goto fail;
}
- for (i = 0; i < vf->chunks; i++) {
+ // The duration here is always the difference between consecutive
+ // start times.
+ for (i = 0; i < track->chunks; i++) {
if (version == 1) {
- vf->offsets[i].time = avio_rb64(f);
- vf->offsets[i].offset = avio_rb64(f);
+ track->offsets[i].time = avio_rb64(f);
+ track->offsets[i].offset = avio_rb64(f);
} else {
- vf->offsets[i].time = avio_rb32(f);
- vf->offsets[i].offset = avio_rb32(f);
+ 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 >> 0) & 3) + 1; j++)
avio_r8(f);
if (i > 0)
- vf->offsets[i - 1].duration = vf->offsets[i].time -
- vf->offsets[i - 1].time;
+ 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 and 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);
+ }
}
- if (vf->chunks > 0)
- vf->offsets[vf->chunks - 1].duration = vf->duration -
- vf->offsets[vf->chunks - 1].time;
ret = 0;
fail:
return ret;
}
-static int read_mfra(struct VideoFiles *files, int start_index,
- const char *file, int split)
+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;
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)
+ 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'))
+ }
+ if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
+ err = AVERROR_INVALIDDATA;
+ err_str = "mfra tag mismatch";
goto fail;
- while (!read_tfra(files, start_index, f)) {
+ }
+ while (!read_tfra(tracks, start_index, f)) {
/* Empty */
}
- if (split)
- write_fragments(files, start_index, f);
+ 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 VideoFile *vf, AVCodecContext *codec)
+static int get_private_data(struct Track *track, AVCodecContext *codec)
{
- vf->codec_private_size = codec->extradata_size;
- vf->codec_private = av_mallocz(codec->extradata_size);
- if (!vf->codec_private)
+ track->codec_private_size = codec->extradata_size;
+ track->codec_private = av_mallocz(codec->extradata_size);
+ if (!track->codec_private)
return AVERROR(ENOMEM);
- memcpy(vf->codec_private, codec->extradata, codec->extradata_size);
+ memcpy(track->codec_private, codec->extradata, codec->extradata_size);
return 0;
}
-static int get_video_private_data(struct VideoFile *vf, AVCodecContext *codec)
+static int get_video_private_data(struct Track *track, AVCodecContext *codec)
{
AVIOContext *io = NULL;
uint16_t sps_size, pps_size;
- int err = AVERROR(EINVAL);
+ int err;
- if (codec->codec_id == CODEC_ID_VC1)
- return get_private_data(vf, codec);
+ if (codec->codec_id == AV_CODEC_ID_VC1)
+ return get_private_data(track, codec);
- avio_open_dyn_buf(&io);
+ if ((err = avio_open_dyn_buf(&io)) < 0)
+ goto fail;
+ err = AVERROR(EINVAL);
if (codec->extradata_size < 11 || codec->extradata[0] != 1)
goto fail;
sps_size = AV_RB16(&codec->extradata[6]);
err = 0;
fail:
- vf->codec_private_size = avio_close_dyn_buf(io, &vf->codec_private);
+ track->codec_private_size = avio_close_dyn_buf(io, &track->codec_private);
return err;
}
-static int handle_file(struct VideoFiles *files, const char *file, int split)
+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_files = files->nb_files;
+ int err = 0, i, orig_tracks = tracks->nb_tracks;
char errbuf[50], *ptr;
- struct VideoFile *vf;
+ struct Track *track;
err = avformat_open_input(&ctx, file, NULL, NULL);
if (err < 0) {
fprintf(stderr, "No streams found in %s\n", file);
goto fail;
}
- if (!files->duration)
- files->duration = ctx->duration;
for (i = 0; i < ctx->nb_streams; i++) {
+ struct Track **temp;
AVStream *st = ctx->streams[i];
- vf = av_mallocz(sizeof(*vf));
- files->files = av_realloc(files->files,
- sizeof(*files->files) * (files->nb_files + 1));
- files->files[files->nb_files] = vf;
-
- vf->name = file;
- if ((ptr = strrchr(file, '/')) != NULL)
- vf->name = ptr + 1;
-
- vf->bitrate = st->codec->bit_rate;
- vf->track_id = st->id;
- vf->timescale = st->time_base.den;
- vf->duration = av_rescale_rnd(ctx->duration, vf->timescale,
- AV_TIME_BASE, AV_ROUND_UP);
- vf->is_audio = st->codec->codec_type == AVMEDIA_TYPE_AUDIO;
- vf->is_video = st->codec->codec_type == AVMEDIA_TYPE_VIDEO;
-
- if (!vf->is_audio && !vf->is_video) {
+
+ if (st->codec->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(tracks->tracks,
+ sizeof(*tracks->tracks) * (tracks->nb_tracks + 1));
+ 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->codec->bit_rate;
+ track->track_id = st->id;
+ track->timescale = st->time_base.den;
+ track->duration = st->duration;
+ track->is_audio = st->codec->codec_type == AVMEDIA_TYPE_AUDIO;
+ track->is_video = st->codec->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",
- vf->track_id, file);
- av_freep(&files->files[files->nb_files]);
+ track->track_id, file);
+ av_freep(&tracks->tracks[tracks->nb_tracks]);
continue;
}
- if (vf->is_audio) {
- if (files->audio_file < 0)
- files->audio_file = files->nb_files;
- files->nb_audio_files++;
- vf->channels = st->codec->channels;
- vf->sample_rate = st->codec->sample_rate;
- if (st->codec->codec_id == CODEC_ID_AAC) {
- vf->fourcc = "AACL";
- vf->tag = 255;
- vf->blocksize = 4;
- } else if (st->codec->codec_id == CODEC_ID_WMAPRO) {
- vf->fourcc = "WMAP";
- vf->tag = st->codec->codec_tag;
- vf->blocksize = st->codec->block_align;
+ 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->codec->channels;
+ track->sample_rate = st->codec->sample_rate;
+ if (st->codec->codec_id == AV_CODEC_ID_AAC) {
+ track->fourcc = "AACL";
+ track->tag = 255;
+ track->blocksize = 4;
+ } else if (st->codec->codec_id == AV_CODEC_ID_WMAPRO) {
+ track->fourcc = "WMAP";
+ track->tag = st->codec->codec_tag;
+ track->blocksize = st->codec->block_align;
}
- get_private_data(vf, st->codec);
+ get_private_data(track, st->codec);
}
- if (vf->is_video) {
- if (files->video_file < 0)
- files->video_file = files->nb_files;
- files->nb_video_files++;
- vf->width = st->codec->width;
- vf->height = st->codec->height;
- if (st->codec->codec_id == CODEC_ID_H264)
- vf->fourcc = "H264";
- else if (st->codec->codec_id == CODEC_ID_VC1)
- vf->fourcc = "WVC1";
- get_video_private_data(vf, st->codec);
+ if (track->is_video) {
+ if (tracks->video_track < 0)
+ tracks->video_track = tracks->nb_tracks;
+ tracks->nb_video_tracks++;
+ track->width = st->codec->width;
+ track->height = st->codec->height;
+ if (st->codec->codec_id == AV_CODEC_ID_H264)
+ track->fourcc = "H264";
+ else if (st->codec->codec_id == AV_CODEC_ID_VC1)
+ track->fourcc = "WVC1";
+ get_video_private_data(track, st->codec);
}
- files->nb_files++;
+ tracks->nb_tracks++;
}
avformat_close_input(&ctx);
- read_mfra(files, orig_files, file, split);
+ err = read_mfra(tracks, orig_tracks, file, split, ismf, basename,
+ output_prefix);
fail:
if (ctx)
return err;
}
-static void output_server_manifest(struct VideoFiles *files,
- const char *basename)
+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.ism", basename);
+ snprintf(filename, sizeof(filename), "%s%s.ism", output_prefix, basename);
out = fopen(filename, "w");
if (!out) {
perror(filename);
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.ismc\" />\n", basename);
+ "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 < files->nb_files; i++) {
- struct VideoFile *vf = files->files[i];
- const char *type = vf->is_video ? "video" : "audio";
- fprintf(out, "\t\t\t<%s src=\"%s\" systemBitrate=\"%d\">\n",
- type, vf->name, vf->bitrate);
+ 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", vf->track_id);
+ "valueType=\"data\" />\n", track->track_id);
fprintf(out, "\t\t\t</%s>\n", type);
}
fprintf(out, "\t\t</switch>\n");
fclose(out);
}
-static void output_client_manifest(struct VideoFiles *files,
- const char *basename, int split)
+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), "Manifest");
+ snprintf(filename, sizeof(filename), "%sManifest", output_prefix);
else
- snprintf(filename, sizeof(filename), "%s.ismc", basename);
+ snprintf(filename, sizeof(filename), "%s%s.ismc", output_prefix, basename);
out = fopen(filename, "w");
if (!out) {
perror(filename);
}
fprintf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
fprintf(out, "<SmoothStreamingMedia MajorVersion=\"2\" MinorVersion=\"0\" "
- "Duration=\"%"PRId64 "\">\n", files->duration * 10);
- if (files->video_file >= 0) {
- struct VideoFile *vf = files->files[files->video_file];
+ "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",
- files->nb_video_files, vf->chunks);
- for (i = 0; i < files->nb_files; i++) {
- vf = files->files[i];
- if (!vf->is_video)
+ 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, vf->bitrate, vf->fourcc, vf->width, vf->height);
- for (j = 0; j < vf->codec_private_size; j++)
- fprintf(out, "%02X", vf->codec_private[j]);
+ 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);
}
- vf = files->files[files->video_file];
- for (i = 0; i < vf->chunks; i++)
- fprintf(out, "\t\t<c n=\"%d\" d=\"%d\" />\n", i,
- vf->offsets[i].duration);
+ print_track_chunks(out, tracks, tracks->video_track, "video");
fprintf(out, "\t</StreamIndex>\n");
}
- if (files->audio_file >= 0) {
- struct VideoFile *vf = files->files[files->audio_file];
+ 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",
- files->nb_audio_files, vf->chunks);
- for (i = 0; i < files->nb_files; i++) {
- vf = files->files[i];
- if (!vf->is_audio)
+ 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, vf->bitrate, vf->fourcc, vf->sample_rate,
- vf->channels, vf->blocksize, vf->tag);
- for (j = 0; j < vf->codec_private_size; j++)
- fprintf(out, "%02X", vf->codec_private[j]);
+ 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);
}
- vf = files->files[files->audio_file];
- for (i = 0; i < vf->chunks; i++)
- fprintf(out, "\t\t<c n=\"%d\" d=\"%d\" />\n",
- i, vf->offsets[i].duration);
+ print_track_chunks(out, tracks, tracks->audio_track, "audio");
fprintf(out, "\t</StreamIndex>\n");
}
fprintf(out, "</SmoothStreamingMedia>\n");
fclose(out);
}
-static void clean_files(struct VideoFiles *files)
+static void clean_tracks(struct Tracks *tracks)
{
int i;
- for (i = 0; i < files->nb_files; i++) {
- av_freep(&files->files[i]->codec_private);
- av_freep(&files->files[i]->offsets);
- av_freep(&files->files[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(&files->files);
- files->nb_files = 0;
+ av_freep(&tracks->tracks);
+ tracks->nb_tracks = 0;
}
int main(int argc, char **argv)
{
const char *basename = NULL;
- int split = 0, i;
- struct VideoFiles vf = { 0, .video_file = -1, .audio_file = -1 };
+ 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 };
av_register_all();
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 {
- handle_file(&vf, argv[i], split);
+ if (!basename)
+ ismf = 0;
+ if (handle_file(&tracks, argv[i], split, ismf,
+ basename, output_prefix))
+ return 1;
}
}
- if (!vf.nb_files || (!basename && !split))
+ if (!tracks.nb_tracks || (!basename && !split))
return usage(argv[0], 1);
if (!split)
- output_server_manifest(&vf, basename);
- output_client_manifest(&vf, basename, split);
+ output_server_manifest(&tracks, basename, output_prefix,
+ path_prefix, ismc_prefix);
+ output_client_manifest(&tracks, basename, output_prefix, split);
- clean_files(&vf);
+ clean_tracks(&tracks);
return 0;
}
projects / ffmpeg / blobdiff