|
|
|
/*
|
|
|
|
* Video Acceleration API (video encoding) encode sample
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
|
|
* in the Software without restriction, including without limitation the rights
|
|
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
|
|
* furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice shall be included in
|
|
|
|
* all copies or substantial portions of the Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
* THE SOFTWARE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @file
|
|
|
|
* Intel VAAPI-accelerated encoding example.
|
|
|
|
*
|
|
|
|
* @example vaapi_encode.c
|
|
|
|
* This example shows how to do VAAPI-accelerated encoding. now only support NV12
|
|
|
|
* raw file, usage like: vaapi_encode 1920 1080 input.yuv output.h264
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <errno.h>
|
|
|
|
|
|
|
|
#include <libavcodec/avcodec.h>
|
|
|
|
#include <libavutil/pixdesc.h>
|
|
|
|
#include <libavutil/hwcontext.h>
|
|
|
|
|
|
|
|
static int width, height;
|
|
|
|
static AVBufferRef *hw_device_ctx = NULL;
|
|
|
|
|
|
|
|
static int set_hwframe_ctx(AVCodecContext *ctx, AVBufferRef *hw_device_ctx)
|
|
|
|
{
|
|
|
|
AVBufferRef *hw_frames_ref;
|
|
|
|
AVHWFramesContext *frames_ctx = NULL;
|
|
|
|
int err = 0;
|
|
|
|
|
|
|
|
if (!(hw_frames_ref = av_hwframe_ctx_alloc(hw_device_ctx))) {
|
|
|
|
fprintf(stderr, "Failed to create VAAPI frame context.\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
frames_ctx = (AVHWFramesContext *)(hw_frames_ref->data);
|
|
|
|
frames_ctx->format = AV_PIX_FMT_VAAPI;
|
|
|
|
frames_ctx->sw_format = AV_PIX_FMT_NV12;
|
|
|
|
frames_ctx->width = width;
|
|
|
|
frames_ctx->height = height;
|
|
|
|
frames_ctx->initial_pool_size = 20;
|
|
|
|
if ((err = av_hwframe_ctx_init(hw_frames_ref)) < 0) {
|
|
|
|
fprintf(stderr, "Failed to initialize VAAPI frame context."
|
|
|
|
"Error code: %s\n",av_err2str(err));
|
|
|
|
av_buffer_unref(&hw_frames_ref);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
ctx->hw_frames_ctx = av_buffer_ref(hw_frames_ref);
|
|
|
|
if (!ctx->hw_frames_ctx)
|
|
|
|
err = AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
av_buffer_unref(&hw_frames_ref);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int encode_write(AVCodecContext *avctx, AVFrame *frame, FILE *fout)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
AVPacket enc_pkt;
|
|
|
|
|
|
|
|
av_init_packet(&enc_pkt);
|
|
|
|
enc_pkt.data = NULL;
|
|
|
|
enc_pkt.size = 0;
|
|
|
|
|
|
|
|
if ((ret = avcodec_send_frame(avctx, frame)) < 0) {
|
|
|
|
fprintf(stderr, "Error code: %s\n", av_err2str(ret));
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
while (1) {
|
|
|
|
ret = avcodec_receive_packet(avctx, &enc_pkt);
|
|
|
|
if (ret)
|
|
|
|
break;
|
|
|
|
|
|
|
|
enc_pkt.stream_index = 0;
|
|
|
|
ret = fwrite(enc_pkt.data, enc_pkt.size, 1, fout);
|
|
|
|
av_packet_unref(&enc_pkt);
|
|
|
|
}
|
|
|
|
|
|
|
|
end:
|
|
|
|
ret = ((ret == AVERROR(EAGAIN)) ? 0 : -1);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
|
|
{
|
|
|
|
int size, err;
|
|
|
|
FILE *fin = NULL, *fout = NULL;
|
|
|
|
AVFrame *sw_frame = NULL, *hw_frame = NULL;
|
|
|
|
AVCodecContext *avctx = NULL;
|
|
|
|
AVCodec *codec = NULL;
|
|
|
|
const char *enc_name = "h264_vaapi";
|
|
|
|
|
|
|
|
if (argc < 5) {
|
|
|
|
fprintf(stderr, "Usage: %s <width> <height> <input file> <output file>\n", argv[0]);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
width = atoi(argv[1]);
|
|
|
|
height = atoi(argv[2]);
|
|
|
|
size = width * height;
|
|
|
|
|
|
|
|
if (!(fin = fopen(argv[3], "r"))) {
|
|
|
|
fprintf(stderr, "Fail to open input file : %s\n", strerror(errno));
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (!(fout = fopen(argv[4], "w+b"))) {
|
|
|
|
fprintf(stderr, "Fail to open output file : %s\n", strerror(errno));
|
|
|
|
err = -1;
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_VAAPI,
|
|
|
|
NULL, NULL, 0);
|
|
|
|
if (err < 0) {
|
|
|
|
fprintf(stderr, "Failed to create a VAAPI device. Error code: %s\n", av_err2str(err));
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(codec = avcodec_find_encoder_by_name(enc_name))) {
|
|
|
|
fprintf(stderr, "Could not find encoder.\n");
|
|
|
|
err = -1;
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(avctx = avcodec_alloc_context3(codec))) {
|
|
|
|
err = AVERROR(ENOMEM);
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
avctx->width = width;
|
|
|
|
avctx->height = height;
|
|
|
|
avctx->time_base = (AVRational){1, 25};
|
|
|
|
avctx->framerate = (AVRational){25, 1};
|
|
|
|
avctx->sample_aspect_ratio = (AVRational){1, 1};
|
|
|
|
avctx->pix_fmt = AV_PIX_FMT_VAAPI;
|
|
|
|
|
|
|
|
/* set hw_frames_ctx for encoder's AVCodecContext */
|
|
|
|
if ((err = set_hwframe_ctx(avctx, hw_device_ctx)) < 0) {
|
|
|
|
fprintf(stderr, "Failed to set hwframe context.\n");
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((err = avcodec_open2(avctx, codec, NULL)) < 0) {
|
|
|
|
fprintf(stderr, "Cannot open video encoder codec. Error code: %s\n", av_err2str(err));
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
if (!(sw_frame = av_frame_alloc())) {
|
|
|
|
err = AVERROR(ENOMEM);
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
/* read data into software frame, and transfer them into hw frame */
|
|
|
|
sw_frame->width = width;
|
|
|
|
sw_frame->height = height;
|
|
|
|
sw_frame->format = AV_PIX_FMT_NV12;
|
|
|
|
if ((err = av_frame_get_buffer(sw_frame, 0)) < 0)
|
|
|
|
goto close;
|
|
|
|
if ((err = fread((uint8_t*)(sw_frame->data[0]), size, 1, fin)) <= 0)
|
|
|
|
break;
|
|
|
|
if ((err = fread((uint8_t*)(sw_frame->data[1]), size/2, 1, fin)) <= 0)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (!(hw_frame = av_frame_alloc())) {
|
|
|
|
err = AVERROR(ENOMEM);
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
if ((err = av_hwframe_get_buffer(avctx->hw_frames_ctx, hw_frame, 0)) < 0) {
|
|
|
|
fprintf(stderr, "Error code: %s.\n", av_err2str(err));
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
if (!hw_frame->hw_frames_ctx) {
|
|
|
|
err = AVERROR(ENOMEM);
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
if ((err = av_hwframe_transfer_data(hw_frame, sw_frame, 0)) < 0) {
|
|
|
|
fprintf(stderr, "Error while transferring frame data to surface."
|
|
|
|
"Error code: %s.\n", av_err2str(err));
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((err = (encode_write(avctx, hw_frame, fout))) < 0) {
|
|
|
|
fprintf(stderr, "Failed to encode.\n");
|
|
|
|
goto close;
|
|
|
|
}
|
|
|
|
av_frame_free(&hw_frame);
|
|
|
|
av_frame_free(&sw_frame);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* flush encoder */
|
|
|
|
err = encode_write(avctx, NULL, fout);
|
|
|
|
if (err == AVERROR_EOF)
|
|
|
|
err = 0;
|
|
|
|
|
|
|
|
close:
|
|
|
|
if (fin)
|
|
|
|
fclose(fin);
|
|
|
|
if (fout)
|
|
|
|
fclose(fout);
|
|
|
|
av_frame_free(&sw_frame);
|
|
|
|
av_frame_free(&hw_frame);
|
|
|
|
avcodec_free_context(&avctx);
|
|
|
|
av_buffer_unref(&hw_device_ctx);
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|