[FFmpeg-devel] [PATCH 7/9] ffmpeg_cuvid: adapt for recent filter graph initialization changes
wm4
nfxjfg at googlemail.com
Fri Feb 10 14:35:39 EET 2017
From: Timo Rothenpieler <timo at rothenpieler.org>
---
ffmpeg.c | 13 ------
ffmpeg.h | 1 -
ffmpeg_cuvid.c | 141 ++++++++++++---------------------------------------------
3 files changed, 30 insertions(+), 125 deletions(-)
diff --git a/ffmpeg.c b/ffmpeg.c
index 97d0946b6b..eeb3d210b0 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3491,19 +3491,6 @@ static int transcode_init(void)
input_streams[j + ifile->ist_index]->start = av_gettime_relative();
}
- /* hwaccel transcoding */
- for (i = 0; i < nb_output_streams; i++) {
- ost = output_streams[i];
-
- if (!ost->stream_copy) {
-
-#if CONFIG_CUVID
- if (cuvid_transcode_init(ost))
- exit_program(1);
-#endif
- }
- }
-
/* init input streams */
for (i = 0; i < nb_input_streams; i++)
if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
diff --git a/ffmpeg.h b/ffmpeg.h
index 7a807e1ab9..6ede1dcd7b 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -646,6 +646,5 @@ int qsv_init(AVCodecContext *s);
int vaapi_decode_init(AVCodecContext *avctx);
int vaapi_device_init(const char *device);
int cuvid_init(AVCodecContext *s);
-int cuvid_transcode_init(OutputStream *ost);
#endif /* FFMPEG_H */
diff --git a/ffmpeg_cuvid.c b/ffmpeg_cuvid.c
index 46540795d4..3ff3b40f17 100644
--- a/ffmpeg_cuvid.c
+++ b/ffmpeg_cuvid.c
@@ -17,138 +17,57 @@
*/
#include "libavutil/hwcontext.h"
+#include "libavutil/pixdesc.h"
#include "ffmpeg.h"
-typedef struct CUVIDContext {
- AVBufferRef *hw_frames_ctx;
-} CUVIDContext;
-
static void cuvid_uninit(AVCodecContext *avctx)
{
- InputStream *ist = avctx->opaque;
- CUVIDContext *ctx = ist->hwaccel_ctx;
-
- if (ctx) {
- av_buffer_unref(&ctx->hw_frames_ctx);
- av_freep(&ctx);
- }
-
+ InputStream *ist = avctx->opaque;
av_buffer_unref(&ist->hw_frames_ctx);
-
- ist->hwaccel_ctx = 0;
- ist->hwaccel_uninit = 0;
}
int cuvid_init(AVCodecContext *avctx)
{
- InputStream *ist = avctx->opaque;
- CUVIDContext *ctx = ist->hwaccel_ctx;
-
- av_log(NULL, AV_LOG_TRACE, "Initializing cuvid hwaccel\n");
-
- if (!ctx) {
- av_log(NULL, AV_LOG_ERROR, "CUVID transcoding is not initialized. "
- "-hwaccel cuvid should only be used for one-to-one CUVID transcoding "
- "with no (software) filters.\n");
- return AVERROR(EINVAL);
- }
-
- return 0;
-}
-
-int cuvid_transcode_init(OutputStream *ost)
-{
- InputStream *ist;
- const enum AVPixelFormat *pix_fmt;
- AVHWFramesContext *hwframe_ctx;
- AVBufferRef *device_ref = NULL;
- CUVIDContext *ctx = NULL;
- int ret = 0;
-
- av_log(NULL, AV_LOG_TRACE, "Initializing cuvid transcoding\n");
+ InputStream *ist = avctx->opaque;
+ AVHWFramesContext *frames_ctx;
+ int ret;
- if (ost->source_index < 0)
- return 0;
+ av_log(avctx, AV_LOG_VERBOSE, "Initializing cuvid hwaccel\n");
- ist = input_streams[ost->source_index];
-
- /* check if the encoder supports CUVID */
- if (!ost->enc->pix_fmts)
- goto cancel;
- for (pix_fmt = ost->enc->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++)
- if (*pix_fmt == AV_PIX_FMT_CUDA)
- break;
- if (*pix_fmt == AV_PIX_FMT_NONE)
- goto cancel;
-
- /* check if the decoder supports CUVID */
- if (ist->hwaccel_id != HWACCEL_CUVID || !ist->dec || !ist->dec->pix_fmts)
- goto cancel;
- for (pix_fmt = ist->dec->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++)
- if (*pix_fmt == AV_PIX_FMT_CUDA)
- break;
- if (*pix_fmt == AV_PIX_FMT_NONE)
- goto cancel;
-
- av_log(NULL, AV_LOG_VERBOSE, "Setting up CUVID transcoding\n");
-
- if (ist->hwaccel_ctx) {
- ctx = ist->hwaccel_ctx;
- } else {
- ctx = av_mallocz(sizeof(*ctx));
- if (!ctx) {
- ret = AVERROR(ENOMEM);
- goto error;
+ if (!hw_device_ctx) {
+ ret = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_CUDA,
+ ist->hwaccel_device, NULL, 0);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error creating a CUDA device\n");
+ return ret;
}
}
- if (!ctx->hw_frames_ctx) {
- ret = av_hwdevice_ctx_create(&device_ref, AV_HWDEVICE_TYPE_CUDA,
- ist->hwaccel_device, NULL, 0);
- if (ret < 0)
- goto error;
+ av_buffer_unref(&ist->hw_frames_ctx);
+ ist->hw_frames_ctx = av_hwframe_ctx_alloc(hw_device_ctx);
+ if (!ist->hw_frames_ctx) {
+ av_log(avctx, AV_LOG_ERROR, "Error creating a CUDA frames context\n");
+ return AVERROR(ENOMEM);
+ }
- ctx->hw_frames_ctx = av_hwframe_ctx_alloc(device_ref);
- if (!ctx->hw_frames_ctx) {
- av_log(NULL, AV_LOG_ERROR, "av_hwframe_ctx_alloc failed\n");
- ret = AVERROR(ENOMEM);
- goto error;
- }
- av_buffer_unref(&device_ref);
+ frames_ctx = (AVHWFramesContext*)ist->hw_frames_ctx->data;
- ist->hw_frames_ctx = av_buffer_ref(ctx->hw_frames_ctx);
- if (!ist->hw_frames_ctx) {
- av_log(NULL, AV_LOG_ERROR, "av_buffer_ref failed\n");
- ret = AVERROR(ENOMEM);
- goto error;
- }
+ frames_ctx->format = AV_PIX_FMT_CUDA;
+ frames_ctx->sw_format = avctx->sw_pix_fmt;
+ frames_ctx->width = avctx->width;
+ frames_ctx->height = avctx->height;
- ist->hwaccel_ctx = ctx;
- ist->hwaccel_uninit = cuvid_uninit;
+ av_log(avctx, AV_LOG_DEBUG, "Initializing CUDA frames context: sw_format = %s, width = %d, height = %d\n",
+ av_get_pix_fmt_name(frames_ctx->sw_format), frames_ctx->width, frames_ctx->height);
- /* This is a bit hacky, av_hwframe_ctx_init is called by the cuvid decoder
- * once it has probed the necessary format information. But as filters/nvenc
- * need to know the format/sw_format, set them here so they are happy.
- * This is fine as long as CUVID doesn't add another supported pix_fmt.
- */
- hwframe_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
- hwframe_ctx->format = AV_PIX_FMT_CUDA;
- hwframe_ctx->sw_format = ist->st->codecpar->format == AV_PIX_FMT_YUV420P10 ? AV_PIX_FMT_P010 : AV_PIX_FMT_NV12;
+ ret = av_hwframe_ctx_init(ist->hw_frames_ctx);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error initializing a CUDA frame pool\n");
+ return ret;
}
- return 0;
-
-error:
- av_freep(&ctx);
- av_buffer_unref(&device_ref);
- return ret;
-
-cancel:
- if (ist->hwaccel_id == HWACCEL_CUVID) {
- av_log(NULL, AV_LOG_ERROR, "CUVID hwaccel requested, but impossible to achieve.\n");
- return AVERROR(EINVAL);
- }
+ ist->hwaccel_uninit = cuvid_uninit;
return 0;
}
--
2.11.0
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