| /* |
| * 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" |
| |
| 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_mallocz_array(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->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; |
| } |
