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Fix decoder switching and context re-usage.

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The re-usage of the decoder context is not properly implemented.
Restart options will only be applied when the core is started.
This commit is contained in:
Nils Hasenbanck 2019-12-01 12:49:37 +01:00
parent c3c2f5bfb6
commit 17107a1563
1 changed files with 67 additions and 71 deletions
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44
cores/libretro-ffmpeg/ffmpeg_core.c
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@ -84,7 +84,6 @@ static int video_stream_index;
static enum AVColorSpace colorspace;
static enum AVPixelFormat pix_fmt;
#define PIX_FMT_NOT_CONFIGURED -2
static enum AVHWDeviceType hw_decoder;
static bool force_sw_decoder;
@ -330,7 +329,7 @@ void CORE_PREFIX(retro_reset)(void)
reset_triggered = true;
}
static void check_variables(void)
static void check_variables(bool firststart)
{
struct retro_variable hw_var = {0};
struct retro_variable sw_threads_var = {0};
@ -395,6 +394,8 @@ static void check_variables(void)
slock_unlock(decode_thread_lock);
}
if (firststart)
{
hw_var.key = "ffmpeg_hw_decoder";
force_sw_decoder = false;
@ -425,6 +426,7 @@ static void check_variables(void)
else if (string_is_equal(hw_var.value, "videotoolbox"))
hw_decoder = AV_HWDEVICE_TYPE_VIDEOTOOLBOX;
}
}
sw_threads_var.key = "ffmpeg_sw_decoder_threads";
if (CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_GET_VARIABLE, &sw_threads_var) && sw_threads_var.value)
@ -495,7 +497,7 @@ void CORE_PREFIX(retro_run)(void)
#endif
if (CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables();
check_variables(false);
#ifdef HAVE_GL_FFT
if (fft_width != old_fft_width || fft_height != old_fft_height)
@ -829,15 +831,13 @@ static enum AVPixelFormat init_hw_decoder(struct AVCodecContext *ctx,
enum AVPixelFormat device_pix_fmt = config->pix_fmt;
/* Look if codec can supports the pix format of the device */
const enum AVPixelFormat *p;
for (p = pix_fmts; *p != -1; p++)
for (size_t i = 0; pix_fmts[i] != AV_PIX_FMT_NONE; i++)
if (pix_fmts[i] == device_pix_fmt)
{
if (*p == device_pix_fmt)
{
decoder_pix_fmt = *p;
decoder_pix_fmt = pix_fmts[i];
goto exit;
}
}
log_cb(RETRO_LOG_ERROR, "[FFMPEG] Codec %s does not support device pixel format %s.\n",
codec->name, av_get_pix_fmt_name(config->pix_fmt));
}
@ -852,9 +852,9 @@ exit:
{
log_cb(RETRO_LOG_ERROR, "[FFMPEG] Failed to create specified HW device: %s\n", av_err2str(ret));
decoder_pix_fmt = AV_PIX_FMT_NONE;
} else {
ctx->hw_device_ctx = av_buffer_ref(hw_device_ctx);
}
else
ctx->hw_device_ctx = av_buffer_ref(hw_device_ctx);
}
return decoder_pix_fmt;
@ -878,20 +878,19 @@ static enum AVPixelFormat auto_hw_decoder(AVCodecContext *ctx,
return decoder_pix_fmt;
}
/* Callback used by ffmpeg to configure the pixelformat to use.
/*
* Callback used by ffmpeg to configure the pixelformat to use.
* Used to initialize hw decoding if configured and accessible.
*/
static enum AVPixelFormat get_format(AVCodecContext *ctx,
const enum AVPixelFormat *pix_fmts)
{
/*
* We only need to update the pixel format once new content has been loaded.
* This also means that you need to reload the core for changing the sw thread
* core count and decoder backend.
*/
if (pix_fmt == PIX_FMT_NOT_CONFIGURED)
/* Look if we can reuse the current context */
for (size_t i = 0; pix_fmts[i] != AV_PIX_FMT_NONE; i++)
if (pix_fmts[i] == pix_fmt)
{
pix_fmt = AV_PIX_FMT_NONE;
return pix_fmt;
}
if (!force_sw_decoder)
{
@ -900,10 +899,8 @@ static enum AVPixelFormat get_format(AVCodecContext *ctx,
pix_fmt = auto_hw_decoder(ctx, pix_fmts);
}
else
{
pix_fmt = init_hw_decoder(ctx, pix_fmts, hw_decoder);
}
}
/* Fallback to SW rendering */
if (pix_fmt == AV_PIX_FMT_NONE)
@ -918,7 +915,6 @@ static enum AVPixelFormat get_format(AVCodecContext *ctx,
}
else
hw_decoding_enabled = true;
}
return pix_fmt;
}
@ -1040,7 +1036,7 @@ static bool open_codecs(void)
{
if (!open_codec(&vctx, i))
return false;
pix_fmt = PIX_FMT_NOT_CONFIGURED;
pix_fmt = AV_PIX_FMT_NONE;
vctx->get_format = get_format;
video_stream_index = i;
}
@ -1871,7 +1867,7 @@ bool CORE_PREFIX(retro_load_game)(const struct retro_game_info *info)
decode_thread_dead = false;
slock_unlock(fifo_lock);
check_variables();
check_variables(true);
decode_thread_handle = sthread_create(decode_thread, NULL);