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Set options for the camera and accompanying AV structures

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This commit is contained in:
Jesse Talavera 2024-12-17 14:37:29 -05:00
parent ce1f31af8d
commit 7b21ed5f93
1 changed files with 49 additions and 6 deletions
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55
camera/drivers/ffmpeg.c
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@ -83,7 +83,7 @@ typedef struct ffmpeg_camera
AVCodecContext *decoder_context;
AVCodec *decoder;
AVInputFormat *input_format; /* owned by ffmpeg, don't free it */
AVDictionary *demuxer_options;
AVDictionary *options;
AVPacket *packet;
AVFrame *camera_frame;
unsigned requested_width;
@ -147,8 +147,22 @@ static void *ffmpeg_camera_init(const char *device, uint64_t caps, unsigned widt
}
AVDeviceInfoList *device_list = NULL;
int num_sources = avdevice_list_input_sources(ffmpeg->input_format, NULL, NULL, &device_list);
// TODO: Handle case where zero sources are returned
// TODO: Pick the best size for the camera
int result = av_dict_set(&ffmpeg->options, "video_size", "640x480", 0);
if (result < 0)
{
RARCH_ERR("[FFMPEG]: Failed to set option: %s\n", av_err2str(result));
goto error;
}
int num_sources = avdevice_list_input_sources(ffmpeg->input_format, NULL, ffmpeg->options, &device_list);
if (num_sources == 0)
{
RARCH_ERR("[FFMPEG]: No video input sources found.\n");
goto error;
}
if (num_sources < 0)
{
RARCH_ERR("[FFMPEG]: Failed to list video input sources: %s\n", av_err2str(num_sources));
@ -177,6 +191,8 @@ static void ffmpeg_camera_free(void *data)
ffmpeg_camera_stop(ffmpeg);
av_dict_free(&ffmpeg->options);
free(ffmpeg);
}
@ -187,6 +203,8 @@ static bool ffmpeg_camera_start(void *data)
ffmpeg_camera_t *ffmpeg = data;
int result = 0;
AVStream *stream = NULL;
AVDictionary *options = NULL;
const AVDictionaryEntry *e = NULL;
if (ffmpeg->format_context)
{ // TODO: Check the actual format context, not just the pointer
@ -194,13 +212,26 @@ static bool ffmpeg_camera_start(void *data)
return true;
}
result = avformat_open_input(&ffmpeg->format_context, ffmpeg->url, ffmpeg->input_format, &ffmpeg->demuxer_options);
result = av_dict_copy(&options, ffmpeg->options, 0);
if (result < 0)
{
RARCH_ERR("[FFMPEG]: Failed to copy options: %s\n", av_err2str(result));
goto error;
}
result = avformat_open_input(&ffmpeg->format_context, ffmpeg->url, ffmpeg->input_format, &options);
if (result < 0)
{
RARCH_ERR("[FFMPEG]: Failed to open video input device: %s\n", av_err2str(result));
goto error;
}
while ((e = av_dict_iterate(options, e))) {
RARCH_WARN("[FFMPEG]: Unrecognized option on video input device: %s=%s\n", e->key, e->value);
}
av_dict_free(&options);
result = avformat_find_stream_info(ffmpeg->format_context, NULL);
if (result < 0)
{
@ -238,14 +269,26 @@ static bool ffmpeg_camera_start(void *data)
goto error;
}
AVDictionary *opts = NULL;
result = avcodec_open2(ffmpeg->decoder_context, ffmpeg->decoder, &opts);
result = av_dict_copy(&ffmpeg->options, options, 0);
if (result < 0)
{
RARCH_ERR("[FFMPEG]: Failed to copy options: %s\n", av_err2str(result));
goto error;
}
result = avcodec_open2(ffmpeg->decoder_context, ffmpeg->decoder, &options);
if (result < 0)
{
RARCH_ERR("[FFMPEG]: Failed to open decoder: %s\n", av_err2str(result));
goto error;
}
while ((e = av_dict_iterate(options, e))) {
RARCH_WARN("[FFMPEG]: Unrecognized option on video input device: %s=%s\n", e->key, e->value);
}
av_dict_free(&options);
ffmpeg->packet = av_packet_alloc();
if (!ffmpeg->packet)
{