obs-studio/plugins/obs-outputs/flv-mux.h

87 lines
2.9 KiB
C

/******************************************************************************
Copyright (C) 2023 by Lain Bailey <lain@obsproject.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>
#define MILLISECOND_DEN 1000
enum audio_id_t {
AUDIO_CODEC_NONE = 0,
AUDIO_CODEC_AAC = 1,
};
enum video_id_t {
CODEC_NONE = 0, // not valid in rtmp
CODEC_H264 = 1, // legacy & Y2023 spec
CODEC_AV1, // Y2023 spec
CODEC_HEVC,
};
static enum audio_id_t to_audio_type(const char *codec)
{
if (strcmp(codec, "aac") == 0)
return AUDIO_CODEC_AAC;
return AUDIO_CODEC_NONE;
}
static enum video_id_t to_video_type(const char *codec)
{
if (strcmp(codec, "h264") == 0)
return CODEC_H264;
if (strcmp(codec, "av1") == 0)
return CODEC_AV1;
#ifdef ENABLE_HEVC
if (strcmp(codec, "hevc") == 0)
return CODEC_HEVC;
#endif
return 0;
}
static int32_t get_ms_time(struct encoder_packet *packet, int64_t val)
{
return (int32_t)(val * MILLISECOND_DEN / packet->timebase_den);
}
extern void write_file_info(FILE *file, int64_t duration_ms, int64_t size);
extern void flv_meta_data(obs_output_t *context, uint8_t **output, size_t *size,
bool write_header);
extern void flv_packet_mux(struct encoder_packet *packet, int32_t dts_offset,
uint8_t **output, size_t *size, bool is_header);
// Y2023 spec
extern void flv_packet_start(struct encoder_packet *packet,
enum video_id_t codec, uint8_t **output,
size_t *size, size_t idx);
extern void flv_packet_frames(struct encoder_packet *packet,
enum video_id_t codec, int32_t dts_offset,
uint8_t **output, size_t *size, size_t idx);
extern void flv_packet_end(struct encoder_packet *packet, enum video_id_t codec,
uint8_t **output, size_t *size, size_t idx);
extern void flv_packet_metadata(enum video_id_t codec, uint8_t **output,
size_t *size, int bits_per_raw_sample,
uint8_t color_primaries, int color_trc,
int color_space, int min_luminance,
int max_luminance, size_t idx);
extern void flv_packet_audio_start(struct encoder_packet *packet,
enum audio_id_t codec, uint8_t **output,
size_t *size, size_t idx);
extern void flv_packet_audio_frames(struct encoder_packet *packet,
enum audio_id_t codec, int32_t dts_offset,
uint8_t **output, size_t *size, size_t idx);