82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
#include "camera.h"
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#include "device/buffer.h"
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#include "device/buffer_list.h"
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#include "device/device.h"
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#include "device/device_list.h"
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#include "device/links.h"
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#include "util/opts/log.h"
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#include "util/opts/fourcc.h"
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#include "device/buffer_list.h"
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#include "util/http/http.h"
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#include "output/rtsp/rtsp.h"
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#include "output/output.h"
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static unsigned decoder_formats[] =
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{
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// best quality
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V4L2_PIX_FMT_YUYV,
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// medium quality
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V4L2_PIX_FMT_YUV420,
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V4L2_PIX_FMT_NV12,
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// low quality
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V4L2_PIX_FMT_YVU420,
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V4L2_PIX_FMT_NV21,
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0
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};
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static void decoder_debug_on_buffer(buffer_t *buf)
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{
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if (!buf) {
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return;
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}
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static int index = 0;
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char path[256];
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sprintf(path, "/tmp/decoder_capture.%d.%s", index++ % 10, fourcc_to_string(buf->buf_list->fmt.format).buf);
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FILE *fp = fopen(path, "wb");
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if (!fp) {
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return;
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}
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fwrite(buf->start, 1, buf->used, fp);
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fclose(fp);
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}
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static link_callbacks_t decoder_debug_callbacks = {
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.name = "DECODER-DEBUG-CAPTURE",
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.on_buffer = decoder_debug_on_buffer
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};
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buffer_list_t *camera_configure_decoder(camera_t *camera, buffer_list_t *src_capture)
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{
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unsigned chosen_format = 0;
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device_info_t *device = device_list_find_m2m_formats(camera->device_list, src_capture->fmt.format, decoder_formats, &chosen_format);
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if (!device) {
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LOG_INFO(camera, "Cannot find '%s' decoder", fourcc_to_string(src_capture->fmt.format).buf);
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return NULL;
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}
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device_video_force_key(camera->camera);
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camera->decoder = device_v4l2_open("DECODER", device->path);
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buffer_list_t *decoder_output = device_open_buffer_list_output(
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camera->decoder, src_capture);
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buffer_list_t *decoder_capture = device_open_buffer_list_capture2(
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camera->decoder, NULL, decoder_output, chosen_format, true);
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if (getenv("CAMERA_DECODER_DEBUG")) {
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camera_capture_add_callbacks(camera, decoder_capture, decoder_debug_callbacks);
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}
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camera_capture_add_output(camera, src_capture, decoder_output);
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return decoder_capture;
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}
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