diff options
| -rw-r--r-- | README | 2 | ||||
| -rw-r--r-- | segmenter/COPYING | 339 | ||||
| -rw-r--r-- | segmenter/Makefile | 11 | ||||
| -rw-r--r-- | segmenter/segmenter.c | 405 |
4 files changed, 756 insertions, 1 deletions
@@ -78,7 +78,7 @@ iStreamdev generate a playlist from the requested file to the last file of the f - ffmpeg compiled with libx264 and libmp3lame support -- segmenter: http://svn.assembla.com/svn/legend/segmenter/ +- segmenter: http://svn.assembla.com/svn/legend/segmenter/ or use the provided one which includes a modification to avoid a warning related to an avformat function call _________________________________________________________ INSTALL diff --git a/segmenter/COPYING b/segmenter/COPYING new file mode 100644 index 0000000..d511905 --- /dev/null +++ b/segmenter/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/segmenter/Makefile b/segmenter/Makefile new file mode 100644 index 0000000..12ecb98 --- /dev/null +++ b/segmenter/Makefile @@ -0,0 +1,11 @@ +all: + gcc -Wall -g segmenter.c -o segmenter -lavformat -lavcodec -lavutil + +clean: + rm segmenter + +install: segmenter + cp segmenter /usr/local/bin/ + +uninstall: + rm /usr/local/bin/segmenter diff --git a/segmenter/segmenter.c b/segmenter/segmenter.c new file mode 100644 index 0000000..69627e4 --- /dev/null +++ b/segmenter/segmenter.c @@ -0,0 +1,405 @@ +/* + * Copyright (c) 2009 Chase Douglas + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include "libavformat/avformat.h" + +static AVStream *add_output_stream(AVFormatContext *output_format_context, AVStream *input_stream) { + AVCodecContext *input_codec_context; + AVCodecContext *output_codec_context; + AVStream *output_stream; + + output_stream = av_new_stream(output_format_context, 0); + if (!output_stream) { + fprintf(stderr, "Could not allocate stream\n"); + exit(1); + } + + input_codec_context = input_stream->codec; + output_codec_context = output_stream->codec; + + output_codec_context->codec_id = input_codec_context->codec_id; + output_codec_context->codec_type = input_codec_context->codec_type; + output_codec_context->codec_tag = input_codec_context->codec_tag; + output_codec_context->bit_rate = input_codec_context->bit_rate; + output_codec_context->extradata = input_codec_context->extradata; + output_codec_context->extradata_size = input_codec_context->extradata_size; + + if(av_q2d(input_codec_context->time_base) * input_codec_context->ticks_per_frame > av_q2d(input_stream->time_base) && av_q2d(input_stream->time_base) < 1.0/1000) { + output_codec_context->time_base = input_codec_context->time_base; + output_codec_context->time_base.num *= input_codec_context->ticks_per_frame; + } + else { + output_codec_context->time_base = input_stream->time_base; + } + + switch (input_codec_context->codec_type) { + case CODEC_TYPE_AUDIO: + output_codec_context->channel_layout = input_codec_context->channel_layout; + output_codec_context->sample_rate = input_codec_context->sample_rate; + output_codec_context->channels = input_codec_context->channels; + output_codec_context->frame_size = input_codec_context->frame_size; + if ((input_codec_context->block_align == 1 && input_codec_context->codec_id == CODEC_ID_MP3) || input_codec_context->codec_id == CODEC_ID_AC3) { + output_codec_context->block_align = 0; + } + else { + output_codec_context->block_align = input_codec_context->block_align; + } + break; + case CODEC_TYPE_VIDEO: + output_codec_context->pix_fmt = input_codec_context->pix_fmt; + output_codec_context->width = input_codec_context->width; + output_codec_context->height = input_codec_context->height; + output_codec_context->has_b_frames = input_codec_context->has_b_frames; + + if (output_format_context->oformat->flags & AVFMT_GLOBALHEADER) { + output_codec_context->flags |= CODEC_FLAG_GLOBAL_HEADER; + } + break; + default: + break; + } + + return output_stream; +} + +int write_index_file(const char index[], const char tmp_index[], const unsigned int segment_duration, const char output_prefix[], const char http_prefix[], const unsigned int first_segment, const unsigned int last_segment, const int end, const int window) { + FILE *index_fp; + char *write_buf; + unsigned int i; + + index_fp = fopen(tmp_index, "w"); + if (!index_fp) { + fprintf(stderr, "Could not open temporary m3u8 index file (%s), no index file will be created\n", tmp_index); + return -1; + } + + write_buf = malloc(sizeof(char) * 1024); + if (!write_buf) { + fprintf(stderr, "Could not allocate write buffer for index file, index file will be invalid\n"); + fclose(index_fp); + return -1; + } + + if (window) { + snprintf(write_buf, 1024, "#EXTM3U\n#EXT-X-TARGETDURATION:%u\n#EXT-X-MEDIA-SEQUENCE:%u\n", segment_duration, first_segment); + } + else { + snprintf(write_buf, 1024, "#EXTM3U\n#EXT-X-TARGETDURATION:%u\n", segment_duration); + } + if (fwrite(write_buf, strlen(write_buf), 1, index_fp) != 1) { + fprintf(stderr, "Could not write to m3u8 index file, will not continue writing to index file\n"); + free(write_buf); + fclose(index_fp); + return -1; + } + + for (i = first_segment; i <= last_segment; i++) { + snprintf(write_buf, 1024, "#EXTINF:%u,\n%s%s-%u.ts\n", segment_duration, http_prefix, output_prefix, i); + if (fwrite(write_buf, strlen(write_buf), 1, index_fp) != 1) { + fprintf(stderr, "Could not write to m3u8 index file, will not continue writing to index file\n"); + free(write_buf); + fclose(index_fp); + return -1; + } + } + + if (end) { + snprintf(write_buf, 1024, "#EXT-X-ENDLIST\n"); + if (fwrite(write_buf, strlen(write_buf), 1, index_fp) != 1) { + fprintf(stderr, "Could not write last file and endlist tag to m3u8 index file\n"); + free(write_buf); + fclose(index_fp); + return -1; + } + } + + free(write_buf); + fclose(index_fp); + + return rename(tmp_index, index); +} + +int main(int argc, char **argv) +{ + const char *input; + const char *output_prefix; + double segment_duration; + char *segment_duration_check; + const char *index; + char *tmp_index; + const char *http_prefix; + long max_tsfiles = 0; + char *max_tsfiles_check; + double prev_segment_time = 0; + unsigned int output_index = 1; + AVInputFormat *ifmt; + AVOutputFormat *ofmt; + AVFormatContext *ic = NULL; + AVFormatContext *oc; + AVStream *video_st; + AVStream *audio_st; + AVCodec *codec; + char *output_filename; + char *remove_filename; + int video_index; + int audio_index; + unsigned int first_segment = 1; + unsigned int last_segment = 0; + int write_index = 1; + int decode_done; + char *dot; + int ret; + int i; + int remove_file; + + if (argc < 6 || argc > 7) { + fprintf(stderr, "Usage: %s <input MPEG-TS file> <segment duration in seconds> <output MPEG-TS file prefix> <output m3u8 index file> <http prefix> [<segment window size>]\n", argv[0]); + exit(1); + } + + av_register_all(); + + input = argv[1]; + if (!strcmp(input, "-")) { + input = "pipe:"; + } + segment_duration = strtod(argv[2], &segment_duration_check); + if (segment_duration_check == argv[2] || segment_duration == HUGE_VAL || segment_duration == -HUGE_VAL) { + fprintf(stderr, "Segment duration time (%s) invalid\n", argv[2]); + exit(1); + } + output_prefix = argv[3]; + index = argv[4]; + http_prefix=argv[5]; + if (argc == 7) { + max_tsfiles = strtol(argv[6], &max_tsfiles_check, 10); + if (max_tsfiles_check == argv[6] || max_tsfiles < 0 || max_tsfiles >= INT_MAX) { + fprintf(stderr, "Maximum number of ts files (%s) invalid\n", argv[6]); + exit(1); + } + } + + remove_filename = malloc(sizeof(char) * (strlen(output_prefix) + 15)); + if (!remove_filename) { + fprintf(stderr, "Could not allocate space for remove filenames\n"); + exit(1); + } + + output_filename = malloc(sizeof(char) * (strlen(output_prefix) + 15)); + if (!output_filename) { + fprintf(stderr, "Could not allocate space for output filenames\n"); + exit(1); + } + + tmp_index = malloc(strlen(index) + 2); + if (!tmp_index) { + fprintf(stderr, "Could not allocate space for temporary index filename\n"); + exit(1); + } + + strncpy(tmp_index, index, strlen(index) + 2); + dot = strrchr(tmp_index, '/'); + dot = dot ? dot + 1 : tmp_index; + for (i = strlen(tmp_index) + 1; i > dot - tmp_index; i--) { + tmp_index[i] = tmp_index[i - 1]; + } + *dot = '.'; + + ifmt = av_find_input_format("mpegts"); + if (!ifmt) { + fprintf(stderr, "Could not find MPEG-TS demuxer\n"); + exit(1); + } + + ret = av_open_input_file(&ic, input, ifmt, 0, NULL); + if (ret != 0) { + fprintf(stderr, "Could not open input file, make sure it is an mpegts file: %d\n", ret); + exit(1); + } + + if (av_find_stream_info(ic) < 0) { + fprintf(stderr, "Could not read stream information\n"); + exit(1); + } + + ofmt = av_guess_format("mpegts", NULL, NULL); + if (!ofmt) { + fprintf(stderr, "Could not find MPEG-TS muxer\n"); + exit(1); + } + + oc = avformat_alloc_context(); + if (!oc) { + fprintf(stderr, "Could not allocated output context"); + exit(1); + } + oc->oformat = ofmt; + + video_index = -1; + audio_index = -1; + + for (i = 0; i < ic->nb_streams && (video_index < 0 || audio_index < 0); i++) { + switch (ic->streams[i]->codec->codec_type) { + case CODEC_TYPE_VIDEO: + video_index = i; + ic->streams[i]->discard = AVDISCARD_NONE; + video_st = add_output_stream(oc, ic->streams[i]); + break; + case CODEC_TYPE_AUDIO: + audio_index = i; + ic->streams[i]->discard = AVDISCARD_NONE; + audio_st = add_output_stream(oc, ic->streams[i]); + break; + default: + ic->streams[i]->discard = AVDISCARD_ALL; + break; + } + } + + if (av_set_parameters(oc, NULL) < 0) { + fprintf(stderr, "Invalid output format parameters\n"); + exit(1); + } + + dump_format(oc, 0, output_prefix, 1); + + codec = avcodec_find_decoder(video_st->codec->codec_id); + if (!codec) { + fprintf(stderr, "Could not find video decoder, key frames will not be honored\n"); + } + + if (avcodec_open(video_st->codec, codec) < 0) { + fprintf(stderr, "Could not open video decoder, key frames will not be honored\n"); + } + + snprintf(output_filename, strlen(output_prefix) + 15, "%s-%u.ts", output_prefix, output_index++); + if (url_fopen(&oc->pb, output_filename, URL_WRONLY) < 0) { + fprintf(stderr, "Could not open '%s'\n", output_filename); + exit(1); + } + + if (av_write_header(oc)) { + fprintf(stderr, "Could not write mpegts header to first output file\n"); + exit(1); + } + + write_index = !write_index_file(index, tmp_index, segment_duration, output_prefix, http_prefix, first_segment, last_segment, 0, max_tsfiles); + + do { + double segment_time; + AVPacket packet; + + decode_done = av_read_frame(ic, &packet); + if (decode_done < 0) { + break; + } + + if (av_dup_packet(&packet) < 0) { + fprintf(stderr, "Could not duplicate packet"); + av_free_packet(&packet); + break; + } + + if (packet.stream_index == video_index && (packet.flags & PKT_FLAG_KEY)) { + segment_time = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den; + } + else if (video_index < 0) { + segment_time = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den; + } + else { + segment_time = prev_segment_time; + } + + if (segment_time - prev_segment_time >= segment_duration) { + put_flush_packet(oc->pb); + url_fclose(oc->pb); + + if (max_tsfiles && (int)(last_segment - first_segment) >= max_tsfiles - 1) { + remove_file = 1; + first_segment++; + } + else { + remove_file = 0; + } + + if (write_index) { + write_index = !write_index_file(index, tmp_index, segment_duration, output_prefix, http_prefix, first_segment, ++last_segment, 0, max_tsfiles); + } + + if (remove_file) { + snprintf(remove_filename, strlen(output_prefix) + 15, "%s-%u.ts", output_prefix, first_segment - 1); + remove(remove_filename); + } + + snprintf(output_filename, strlen(output_prefix) + 15, "%s-%u.ts", output_prefix, output_index++); + if (url_fopen(&oc->pb, output_filename, URL_WRONLY) < 0) { + fprintf(stderr, "Could not open '%s'\n", output_filename); + break; + } + + prev_segment_time = segment_time; + } + + ret = av_interleaved_write_frame(oc, &packet); + if (ret < 0) { + fprintf(stderr, "Warning: Could not write frame of stream\n"); + } + else if (ret > 0) { + fprintf(stderr, "End of stream requested\n"); + av_free_packet(&packet); + break; + } + + av_free_packet(&packet); + } while (!decode_done); + + av_write_trailer(oc); + + avcodec_close(video_st->codec); + + for(i = 0; i < oc->nb_streams; i++) { + av_freep(&oc->streams[i]->codec); + av_freep(&oc->streams[i]); + } + + url_fclose(oc->pb); + av_free(oc); + + if (max_tsfiles && (int)(last_segment - first_segment) >= max_tsfiles - 1) { + remove_file = 1; + first_segment++; + } + else { + remove_file = 0; + } + + if (write_index) { + write_index_file(index, tmp_index, segment_duration, output_prefix, http_prefix, first_segment, ++last_segment, 1, max_tsfiles); + } + + if (remove_file) { + snprintf(remove_filename, strlen(output_prefix) + 15, "%s-%u.ts", output_prefix, first_segment - 1); + remove(remove_filename); + } + + return 0; +} + +// vim:sw=4:tw=4:ts=4:ai:expandtab |