69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include "output.h"
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#include "util/opts/log.h"
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#include "util/http/http.h"
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#include "device/buffer.h"
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#include "device/buffer_lock.h"
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#include "device/buffer_list.h"
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#include "device/device.h"
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static const char *const VIDEO_HEADER =
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"HTTP/1.0 200 OK\r\n"
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"Access-Control-Allow-Origin: *\r\n"
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"Connection: close\r\n"
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"Content-Type: application/octet-stream\r\n"
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"\r\n";
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typedef struct {
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FILE *stream;
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bool wrote_header;
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bool had_key_frame;
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bool requested_key_frame;
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} http_video_status_t;
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int http_video_buf_part(buffer_lock_t *buf_lock, buffer_t *buf, int frame, http_video_status_t *status)
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{
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if (!status->had_key_frame) {
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status->had_key_frame = buf->flags.is_keyframe;
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}
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if (!status->had_key_frame) {
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if (!status->requested_key_frame) {
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device_video_force_key(buf->buf_list->dev);
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status->requested_key_frame = true;
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}
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return 0;
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}
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if (!status->wrote_header) {
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fputs(VIDEO_HEADER, status->stream);
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status->wrote_header = true;
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}
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if (!fwrite(buf->start, buf->used, 1, status->stream)) {
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return -1;
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}
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fflush(status->stream);
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return 1;
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}
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void http_h264_video(http_worker_t *worker, FILE *stream)
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{
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http_video_status_t status = { stream };
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int n = buffer_lock_write_loop(&video_lock, 0, 0, (buffer_write_fn)http_video_buf_part, &status);
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if (status.wrote_header) {
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return;
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}
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http_500(stream, NULL);
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if (n == 0) {
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fprintf(stream, "No frames.\n");
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} else if (n < 0) {
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fprintf(stream, "Interrupted. Received %d frames", -n);
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}
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}
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