* 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>
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;
}
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 Tracks *tracks, 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;
+}
+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), "QualityLevels(%d)", track->bitrate);
- if (mkdir(dirname, 0777) == -1)
- return AVERROR(errno);
+ 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);
- write_fragment(filename, in);
+ 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 int read_tfra(struct Tracks *tracks, int start_index, AVIOContext *f)
}
fieldlength = avio_rb32(f);
track->chunks = avio_rb32(f);
- track->offsets = av_mallocz(sizeof(*track->offsets) * track->chunks);
+ track->offsets = av_mallocz_array(track->chunks, sizeof(*track->offsets));
if (!track->offsets) {
ret = AVERROR(ENOMEM);
goto fail;
}
static int read_mfra(struct Tracks *tracks, int start_index,
- const char *file, int split)
+ 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, -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)
- err = write_fragments(tracks, 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\n", file);
+ fprintf(stderr, "Unable to read the MFRA atom in %s (%s)\n", file, err_str);
return err;
}
{
AVIOContext *io = NULL;
uint16_t sps_size, pps_size;
- int err = AVERROR(EINVAL);
+ int err;
if (codec->codec_id == AV_CODEC_ID_VC1)
return get_private_data(track, codec);
- if (avio_open_dyn_buf(&io) < 0) {
- err = AVERROR(ENOMEM);
+ 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]);
return err;
}
-static int handle_file(struct Tracks *tracks, 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_tracks = tracks->nb_tracks;
for (i = 0; i < ctx->nb_streams; i++) {
struct Track **temp;
AVStream *st = ctx->streams[i];
+
+ 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);
tracks->tracks[tracks->nb_tracks] = track;
track->name = file;
- if ((ptr = strrchr(file, '/')) != NULL)
+ if ((ptr = strrchr(file, '/')))
track->name = ptr + 1;
track->bitrate = st->codec->bit_rate;
avformat_close_input(&ctx);
- err = read_mfra(tracks, orig_tracks, 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 Tracks *tracks,
- 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 < 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\" systemBitrate=\"%d\">\n",
- type, track->name, track->bitrate);
+ 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);
{
int i, j;
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 &&
- track->offsets[i].duration != tracks->tracks[j]->offsets[i].duration)
- fprintf(stderr, "Mismatched duration of %s chunk %d in %s and %s\n",
- type, i, track->name, tracks->tracks[j]->name);
+ 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"\" />\n",
i, track->offsets[i].duration);
}
}
-static void output_client_manifest(struct Tracks *tracks,
- const char *basename, int split)
+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, "\" />\n");
index++;
if (track->chunks != first_track->chunks)
- fprintf(stderr, "Mismatched number of video chunks in %s and %s\n",
- track->name, first_track->name);
+ 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");
int main(int argc, char **argv)
{
const char *basename = NULL;
- int split = 0, i;
+ 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 {
- if (handle_file(&tracks, argv[i], split))
+ if (!basename)
+ ismf = 0;
+ if (handle_file(&tracks, argv[i], split, ismf,
+ basename, output_prefix))
return 1;
}
}
return usage(argv[0], 1);
if (!split)
- output_server_manifest(&tracks, basename);
- output_client_manifest(&tracks, basename, split);
+ output_server_manifest(&tracks, basename, output_prefix,
+ path_prefix, ismc_prefix);
+ output_client_manifest(&tracks, basename, output_prefix, split);
clean_tracks(&tracks);
projects / platform / framework / web / crosswalk.git / blobdiff