Segmentation fault with AMD GPU on start

### Describe the Bug

This was previously mentioned on loki's repo [here](https://github.com/loki-47-6F-64/sunshine/issues/285), but since it hasn't been addressed, and this is the currently maintained repo, I figured I'd mention it here as well.

The debug logs output no errors, however the program segfaults and exits without any additional context. It seems to only occur on AMD GPUs since all other reported instances of this error happened on AMD GPUs, however I could be mistaken.

In the previous issue, it was narrowed down to the `free_ctx` method in `sunshine/video.cpp`.
```
void free_ctx(AVCodecContext *ctx) {
 //avcodec_free_context(&ctx);
}
```
Commenting out this line allows Sunshine to run, although I'm sure that's not the proper solution.

### Expected Behavior

The program is expected to open and start normally, but instead a segmentation fault occurs.

### Additional Context

<details>
<summary>Debug logs:</summary>
<br>

```
[audio_sink] -- [alsa_output.pci-0000_55_00.1.hdmi-stereo-extra4.monitor]
[fps] -- [[10,30,60,90,120,"170"]]
[amd_rc] -- [auto]
[encoder] -- [vaapi]
[hevc_mode] -- [0]
[nv_rc] -- [auto]
[min_threads] -- [1]
[gamepad] -- [x360]
[nv_preset] -- [default]
[upnp] -- [disabled]
[file_apps] -- [/home/user/.config/sunshine/apps_linux.json]
[nv_coder] -- [auto]
[sunshine_name] -- [User's Desktop]
[amd_quality] -- [default]
[origin_web_ui_allowed] -- [lan]
[min_log_level] -- [1]
[output_name] -- [1]
[key_rightalt_to_key_win] -- [disabled]
[resolutions] -- [[
 352x240,
 480x360,
 858x480,
 1280x720,
 1920x1080,
 2560x1080,
 3440x1440,
 1920x1200,
 3860x2160,
 3840x1600,
 2560x1440
]]
[origin_pin_allowed] -- [pc]
[2022:02:28:19:51:36]: Info: Found display [wayland-0]
[2022:02:28:19:51:36]: Debug: Available interface: wl_compositor(1) version 4
[2022:02:28:19:51:36]: Debug: Available interface: wl_drm(2) version 2
[2022:02:28:19:51:36]: Debug: Available interface: wl_shm(3) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_output_manager_v1(6) version 3
[2022:02:28:19:51:36]: Info: Found interface: zxdg_output_manager_v1(6) version 3
[2022:02:28:19:51:36]: Debug: Available interface: wl_data_device_manager(7) version 3
[2022:02:28:19:51:36]: Debug: Available interface: zwp_primary_selection_device_manager_v1(8) version 1
[2022:02:28:19:51:36]: Debug: Available interface: gtk_primary_selection_device_manager(9) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_subcompositor(10) version 1
[2022:02:28:19:51:36]: Debug: Available interface: xdg_wm_base(11) version 3
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_shell_v6(12) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_shell(13) version 1
[2022:02:28:19:51:36]: Debug: Available interface: gtk_shell1(14) version 5
[2022:02:28:19:51:36]: Debug: Available interface: wp_viewporter(15) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_pointer_gestures_v1(16) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_tablet_manager_v2(17) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_seat(18) version 5
[2022:02:28:19:51:36]: Debug: Available interface: zwp_relative_pointer_manager_v1(19) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_pointer_constraints_v1(20) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_exporter_v1(21) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_importer_v1(22) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_linux_dmabuf_v1(23) version 3
[2022:02:28:19:51:36]: Debug: Available interface: zwp_keyboard_shortcuts_inhibit_manager_v1(24) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_text_input_manager_v3(25) version 1
[2022:02:28:19:51:36]: Debug: Available interface: gtk_text_input_manager(26) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wp_presentation(27) version 1
[2022:02:28:19:51:36]: Debug: Available interface: xdg_activation_v1(28) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_output(36) version 2
[2022:02:28:19:51:36]: Info: Found interface: wl_output(36) version 2
[2022:02:28:19:51:36]: Debug: Available interface: wl_output(38) version 2
[2022:02:28:19:51:36]: Info: Found interface: wl_output(38) version 2
[2022:02:28:19:51:36]: Warning: Missing Wayland wire for wlr-export-dmabuf
[2022:02:28:19:51:36]: Debug: crtc(0, 0)
[2022:02:28:19:51:36]: Debug: crtc(1920, 1080)
[2022:02:28:19:51:36]: Debug: plane->possible_crtcs == 2
[2022:02:28:19:51:36]: Debug: x(0) y(0) crtc_x(0) crtc_y(0) crtc_id(75)
[2022:02:28:19:51:36]: Debug: Resolution: 1920x1080: Pitch: 7680: Offset: 0
[2022:02:28:19:51:36]: Debug: Format [XR24, AR24, RA24, XR30, XB30, AR30, AB30, XR48, XB48, AR48, AB48, XB24, AB24, RG16, NV12, XR4H, AR4H, XB4H, AB4H]
[2022:02:28:19:51:36]: Debug: crtc(0, 0)
[2022:02:28:19:51:36]: Debug: crtc(2560, 1440)
[2022:02:28:19:51:36]: Debug: plane->possible_crtcs == 1
[2022:02:28:19:51:36]: Debug: x(0) y(0) crtc_x(0) crtc_y(0) crtc_id(72)
[2022:02:28:19:51:36]: Debug: Resolution: 2560x1440: Pitch: 10240: Offset: 0
[2022:02:28:19:51:36]: Debug: Format [XR24, AR24, RA24, XR30, XB30, AR30, AB30, XR48, XB48, AR48, AB48, XB24, AB24, RG16, NV12, XR4H, AR4H, XB4H, AB4H]
[2022:02:28:19:51:36]: Info: Found display [wayland-0]
[2022:02:28:19:51:36]: Info: Found display [wayland-0]
[2022:02:28:19:51:36]: Debug: Available interface: wl_compositor(1) version 4
[2022:02:28:19:51:36]: Debug: Available interface: wl_drm(2) version 2
[2022:02:28:19:51:36]: Debug: Available interface: wl_shm(3) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_output_manager_v1(6) version 3
[2022:02:28:19:51:36]: Info: Found interface: zxdg_output_manager_v1(6) version 3
[2022:02:28:19:51:36]: Debug: Available interface: wl_data_device_manager(7) version 3
[2022:02:28:19:51:36]: Debug: Available interface: zwp_primary_selection_device_manager_v1(8) version 1
[2022:02:28:19:51:36]: Debug: Available interface: gtk_primary_selection_device_manager(9) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_subcompositor(10) version 1
[2022:02:28:19:51:36]: Debug: Available interface: xdg_wm_base(11) version 3
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_shell_v6(12) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_shell(13) version 1
[2022:02:28:19:51:36]: Debug: Available interface: gtk_shell1(14) version 5
[2022:02:28:19:51:36]: Debug: Available interface: wp_viewporter(15) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_pointer_gestures_v1(16) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_tablet_manager_v2(17) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_seat(18) version 5
[2022:02:28:19:51:36]: Debug: Available interface: zwp_relative_pointer_manager_v1(19) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_pointer_constraints_v1(20) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_exporter_v1(21) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zxdg_importer_v1(22) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_linux_dmabuf_v1(23) version 3
[2022:02:28:19:51:36]: Debug: Available interface: zwp_keyboard_shortcuts_inhibit_manager_v1(24) version 1
[2022:02:28:19:51:36]: Debug: Available interface: zwp_text_input_manager_v3(25) version 1
[2022:02:28:19:51:36]: Debug: Available interface: gtk_text_input_manager(26) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wp_presentation(27) version 1
[2022:02:28:19:51:36]: Debug: Available interface: xdg_activation_v1(28) version 1
[2022:02:28:19:51:36]: Debug: Available interface: wl_output(36) version 2
[2022:02:28:19:51:36]: Info: Found interface: wl_output(36) version 2
[2022:02:28:19:51:36]: Debug: Available interface: wl_output(38) version 2
[2022:02:28:19:51:36]: Info: Found interface: wl_output(38) version 2
[2022:02:28:19:51:36]: Info: Offset: 0x0
[2022:02:28:19:51:36]: Info: Resolution: 2560x1440
[2022:02:28:19:51:36]: Info: Name: DP-1
[2022:02:28:19:51:36]: Info: Found monitor: GIGA-BYTE TECHNOLOGY CO., LTD. 32"
[2022:02:28:19:51:36]: Info: Offset: 2560x360
[2022:02:28:19:51:36]: Info: Resolution: 1920x1080
[2022:02:28:19:51:36]: Info: Name: HDMI-2
[2022:02:28:19:51:36]: Info: Found monitor: Dell Inc. 24"
[2022:02:28:19:51:36]: Info: DP-1: GIGA-BYTE TECHNOLOGY CO., LTD. 32"
[2022:02:28:19:51:36]: Info: HDMI-2: Dell Inc. 24"
[2022:02:28:19:51:36]: Debug: Monitor description
[2022:02:28:19:51:36]: Debug: Resolution: 0x0
[2022:02:28:19:51:36]: Debug: Offset: 0x0
[2022:02:28:19:51:36]: Debug: Monitor description
[2022:02:28:19:51:36]: Debug: Resolution: 2560x1440
[2022:02:28:19:51:36]: Debug: Offset: 0x0
[2022:02:28:19:51:36]: Debug: Monitor description
[2022:02:28:19:51:36]: Debug: Resolution: 1920x1080
[2022:02:28:19:51:36]: Debug: Offset: 2560x360
[2022:02:28:19:51:36]: Debug: Desktop resolution: 4480x1440
[2022:02:28:19:51:36]: Info: //////////////////////////////////////////////////////////////////
[2022:02:28:19:51:36]: Info: // //
[2022:02:28:19:51:36]: Info: // Testing for available encoders, this may generate errors. //
[2022:02:28:19:51:36]: Info: // You can safely ignore those errors. //
[2022:02:28:19:51:36]: Info: // //
[2022:02:28:19:51:36]: Info: //////////////////////////////////////////////////////////////////
[2022:02:28:19:51:36]: Info: Trying encoder [vaapi]
[2022:02:28:19:51:36]: Info: Screencasting with KMS
[2022:02:28:19:51:36]: Info: Found monitor for DRM screencasting
[2022:02:28:19:51:36]: Debug: crtc(0, 0)
[2022:02:28:19:51:36]: Debug: crtc(2560, 1440)
[2022:02:28:19:51:36]: Debug: plane->possible_crtcs == 1
[2022:02:28:19:51:36]: Debug: x(0) y(0) crtc_x(0) crtc_y(0) crtc_id(72)
[2022:02:28:19:51:36]: Debug: Resolution: 2560x1440: Pitch: 10240: Offset: 0
[2022:02:28:19:51:36]: Debug: Format [XR24, AR24, RA24, XR30, XB30, AR30, AB30, XR48, XB48, AR48, AB48, XB24, AB24, RG16, NV12, XR4H, AR4H, XB4H, AB4H]
[2022:02:28:19:51:36]: Debug: EGL: [Mesa Project]: version [1.5]
[2022:02:28:19:51:36]: Debug: API's supported: [OpenGL OpenGL_ES ]
[2022:02:28:19:51:36]: Debug: GL: vendor: AMD
[2022:02:28:19:51:36]: Debug: GL: renderer: AMD DIMGREY_CAVEFISH (DRM 3.44.0, 5.16.10-zen1-1-zen, LLVM 13.0.1)
[2022:02:28:19:51:36]: Debug: GL: version: 4.6 (Compatibility Profile) Mesa 21.3.7
[2022:02:28:19:51:36]: Debug: GL: shader: 4.60
[2022:02:28:19:51:36]: Info: Color coding [Rec. 601]
[2022:02:28:19:51:36]: Info: Color range: [JPEG]
[2022:02:28:19:51:36]: Debug: vaapi vendor: Mesa Gallium driver 21.3.7 for AMD DIMGREY_CAVEFISH (DRM 3.44.0, 5.16.10-zen1-1-zen, LLVM 13.0.1)
[1] 381224 segmentation fault (core dumped) sunshine '/home/user/.config/sunshine/sunshine.conf'
```
</details>

### Sunshine Host Operating System and Version

Arch Linux (kernel 5.16.10-zen)

### Architecture

64 bit

### Sunshine Version

0.13.0

### GPU Type

AMD

### GPU Model

Radeon RX 6600

### GPU Driver/Mesa Version

Mesa 21.3.7

### Capture Method (Linux Only)

PipeWire/VAAPI/Wayland

Uh oh!

Uh oh!

Segmentation fault with AMD GPU on start #79

Description

Describe the Bug

Expected Behavior

Additional Context

Sunshine Host Operating System and Version

Architecture

Sunshine Version

GPU Type

GPU Model

GPU Driver/Mesa Version

Capture Method (Linux Only)

Activity

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Uh oh!

Uh oh!

Segmentation fault with AMD GPU on start #79

Description

Describe the Bug

Expected Behavior

Additional Context

Sunshine Host Operating System and Version

Architecture

Sunshine Version

GPU Type

GPU Model

GPU Driver/Mesa Version

Capture Method (Linux Only)

Activity

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions

Uh oh!

Uh oh!

Segmentation fault with AMD GPU on start #79

Description

Describe the Bug

Expected Behavior

Additional Context

Sunshine Host Operating System and Version

Architecture

Sunshine Version

GPU Type

GPU Model

GPU Driver/Mesa Version

Capture Method (Linux Only)

Activity

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions

Uh oh!

Uh oh!

Segmentation fault with AMD GPU on start #79

Description

Describe the Bug