974e64eb23
The list of channel layouts available for decklink input is missing 2.1 & 4.1 layouts. The commit adds them. This aligns the decklink input with the speaker layouts available at outputs. Having different layouts as input and output invokes FFmpeg resampler, which remixes the channels in non trivial way except when downmixing to stereo. This patch allows to avoid such uncontrolled remix of channels with decklink input.
45 lines
904 B
C
45 lines
904 B
C
#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <string.h>
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#include <obs.h>
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struct audio_repack;
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typedef int (*audio_repack_func_t)(struct audio_repack *,
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const uint8_t *, uint32_t);
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struct audio_repack {
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uint8_t *packet_buffer;
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uint32_t packet_size;
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uint32_t base_src_size;
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uint32_t base_dst_size;
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uint32_t extra_dst_size;
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audio_repack_func_t repack_func;
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};
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enum _audio_repack_mode {
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repack_mode_8to3ch_swap23,
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repack_mode_8to4ch_swap23,
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repack_mode_8to5ch_swap23,
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repack_mode_8to6ch_swap23,
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repack_mode_8ch_swap23_swap46_swap57,
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};
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typedef enum _audio_repack_mode audio_repack_mode_t;
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extern int audio_repack_init(struct audio_repack *repack,
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audio_repack_mode_t repack_mode, uint8_t sample_bit);
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extern void audio_repack_free(struct audio_repack *repack);
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#ifdef __cplusplus
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}
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#endif
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