network/packet/parsing.h

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#pragma once
 
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <ascii-chat/buffer.h>
#include "../../common.h"
#include "../../audio/audio.h"
#include "../../util/endian.h"


char *packet_decode_frame_data_malloc(const char *frame_data_ptr, size_t frame_data_len, bool is_compressed,
                                      uint32_t original_size, uint32_t compressed_size);

asciichat_error_t packet_decode_frame_data_buffer(const char *frame_data_ptr, size_t frame_data_len, bool is_compressed,
                                                  void *output_buffer, size_t output_size, uint32_t original_size,
                                                  uint32_t compressed_size);
asciichat_error_t packet_decode_frame_data_workspace(buffer_workspace_t *workspace, const void *data, size_t length,
                                                     bool compressed, uint32_t original_size, uint32_t compressed_size);



asciichat_error_t packet_validate_frame_dimensions(uint32_t width, uint32_t height, size_t *out_rgb_size);



static inline asciichat_error_t packet_parse_audio_batch_header(const void *data, size_t len,
                                                                audio_batch_info_t *out_batch) {
  // Delegate to the canonical implementation in audio/audio.h
  return audio_parse_batch_header(data, len, out_batch);
}



static inline void packet_read_u32_net(const void *src, uint32_t *out_value) {
  uint32_t net_value;
  memcpy(&net_value, src, sizeof(uint32_t));
  *out_value = NET_TO_HOST_U32(net_value);
}

static inline void packet_read_u16_net(const void *src, uint16_t *out_value) {
  uint16_t net_value;
  memcpy(&net_value, src, sizeof(uint16_t));
  *out_value = NET_TO_HOST_U16(net_value);
}



asciichat_error_t packet_parse_opus_batch(const void *packet_data, size_t packet_len, const uint8_t **out_opus_data,
                                          size_t *out_opus_size, const uint16_t **out_frame_sizes, int *out_sample_rate,
                                          int *out_frame_duration, int *out_frame_count);