jp9000
/
obs-studio
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
obs-studio/plugins/obs-outputs/flv-mux.h

35 lines
1.4 KiB
C
Raw Normal View History

Add preliminary FLV/RTMP output (incomplete) - obs-outputs module: Add preliminary code to send out data, and add an FLV muxer. This time we don't really need to build the packets ourselves, we can just use the FLV muxer and send it directly to RTMP_Write and it should automatically parse the entire stream for us without us having to do much manual code at all. We'll see how it goes. - libobs: Add AVC NAL packet parsing code - libobs/media-io: Add quick helper functions for audio/video to get the width/height/fps/samplerate/etc rather than having to query the info structures each time. - libobs (obs-output.c): Change 'connect' signal to 'start' and 'stop' signals. 'start' now specifies an error code rather than whether it simply failed, that way the client can actually know *why* a failure occurred. Added those error codes to obs-defs.h. - libobs: Add a few functions to duplicate/free encoder packets
2014-04-01 11:55:18 -07:00
/******************************************************************************
Copyright (C) 2014 by Hugh Bailey <obs.jim@gmail.com>
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, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#pragma once
#include <obs.h>
Add FLV file output code This doesn't add FLV file output to the user interface yet, but we'll get around to that eventually. This just adds an FLV output type. Also, removed ftello/fseeko because off_t is a really annoying data type, and I'd rather have a firm int64_t for large sizes, so I named it to os_fseeki64 and os_ftelli64 instead, and changed the file size function to return an int64_t.
2014-05-16 00:18:23 -07:00
#define MILLISECOND_DEN 1000
static uint32_t get_ms_time(struct encoder_packet *packet, int64_t val)
{
return (uint32_t)(val * MILLISECOND_DEN / packet->timebase_den);
}
extern void write_file_info(FILE *file, int64_t duration_ms, int64_t size);
(API Change) Add support for multiple audio mixers API changed: -------------------------- void obs_output_set_audio_encoder( obs_output_t *output, obs_encoder_t *encoder); obs_encoder_t *obs_output_get_audio_encoder( const obs_output_t *output); obs_encoder_t *obs_audio_encoder_create( const char *id, const char *name, obs_data_t *settings); Changed to: -------------------------- /* 'idx' specifies the track index of the output */ void obs_output_set_audio_encoder( obs_output_t *output, obs_encoder_t *encoder, size_t idx); /* 'idx' specifies the track index of the output */ obs_encoder_t *obs_output_get_audio_encoder( const obs_output_t *output, size_t idx); /* 'mixer_idx' specifies the mixer index to capture audio from */ obs_encoder_t *obs_audio_encoder_create( const char *id, const char *name, obs_data_t *settings, size_t mixer_idx); Overview -------------------------- This feature allows multiple audio mixers to be used at a time. This capability was able to be added with surprisingly very little extra overhead. Audio will not be mixed unless it's assigned to a specific mixer, and mixers will not mix unless they have an active mix connection. Mostly this will be useful for being able to separate out specific audio for recording versus streaming, but will also be useful for certain streaming services that support multiple audio streams via RTMP. I didn't want to use a variable amount of mixers due to the desire to reduce heap allocations, so currently I set the limit to 4 simultaneous mixers; this number can be increased later if needed, but honestly I feel like it's just the right number to use. Sources: Sources can now specify which audio mixers their audio is mixed to; this can be a single mixer or multiple mixers at a time. The obs_source_set_audio_mixers function sets the audio mixer which an audio source applies to. For example, 0xF would mean that the source applies to all four mixers. Audio Encoders: Audio encoders now must specify which specific audio mixer they use when they encode audio data. Outputs: Outputs that use encoders can now support multiple audio tracks at once if they have the OBS_OUTPUT_MULTI_TRACK capability flag set. This is mostly only useful for certain types of RTMP transmissions, though may be useful for file formats that support multiple audio tracks as well later on.
2015-01-14 02:12:08 -08:00
extern bool flv_meta_data(obs_output_t *context, uint8_t **output, size_t *size,
bool write_header, size_t audio_idx);
Add preliminary FLV/RTMP output (incomplete) - obs-outputs module: Add preliminary code to send out data, and add an FLV muxer. This time we don't really need to build the packets ourselves, we can just use the FLV muxer and send it directly to RTMP_Write and it should automatically parse the entire stream for us without us having to do much manual code at all. We'll see how it goes. - libobs: Add AVC NAL packet parsing code - libobs/media-io: Add quick helper functions for audio/video to get the width/height/fps/samplerate/etc rather than having to query the info structures each time. - libobs (obs-output.c): Change 'connect' signal to 'start' and 'stop' signals. 'start' now specifies an error code rather than whether it simply failed, that way the client can actually know *why* a failure occurred. Added those error codes to obs-defs.h. - libobs: Add a few functions to duplicate/free encoder packets
2014-04-01 11:55:18 -07:00
extern void flv_packet_mux(struct encoder_packet *packet,
uint8_t **output, size_t *size, bool is_header);