Usage is: ./qsvdec_gpucopy on/off input_stream output_stream For example: - enable/disable gpu copy: ./qsvdec_gpucopy on input.h264 output.yuv ./qsvdec_gpucopy off input.h264 output.yuv
Generate fps per second. Signed-off-by: Linjie Fu <linjie...@intel.com> --- configure | 2 + doc/examples/Makefile | 1 + doc/examples/qsvdec_gpucopy.c | 276 ++++++++++++++++++++++++++++++++++ 3 files changed, 279 insertions(+) create mode 100644 doc/examples/qsvdec_gpucopy.c diff --git a/configure b/configure index 331393f8d5..579ab9ea4a 100755 --- a/configure +++ b/configure @@ -1667,6 +1667,7 @@ EXAMPLE_LIST=" metadata_example muxing_example qsvdec_example + qsvdec_gpucopy_example remuxing_example resampling_audio_example scaling_video_example @@ -3550,6 +3551,7 @@ hw_decode_example_deps="avcodec avformat avutil" metadata_example_deps="avformat avutil" muxing_example_deps="avcodec avformat avutil swscale" qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder" +qsvdec_gpucopy_example_deps="avcodec avutil avformat" remuxing_example_deps="avcodec avformat avutil" resampling_audio_example_deps="avutil swresample" scaling_video_example_deps="avutil swscale" diff --git a/doc/examples/Makefile b/doc/examples/Makefile index 2935424e54..188ef0abf1 100644 --- a/doc/examples/Makefile +++ b/doc/examples/Makefile @@ -14,6 +14,7 @@ EXAMPLES-$(CONFIG_HW_DECODE_EXAMPLE) += hw_decode EXAMPLES-$(CONFIG_METADATA_EXAMPLE) += metadata EXAMPLES-$(CONFIG_MUXING_EXAMPLE) += muxing EXAMPLES-$(CONFIG_QSVDEC_EXAMPLE) += qsvdec +EXAMPLES-$(CONFIG_QSVDEC_GPUCOPY_EXAMPLE) += qsvdec_gpucopy EXAMPLES-$(CONFIG_REMUXING_EXAMPLE) += remuxing EXAMPLES-$(CONFIG_RESAMPLING_AUDIO_EXAMPLE) += resampling_audio EXAMPLES-$(CONFIG_SCALING_VIDEO_EXAMPLE) += scaling_video diff --git a/doc/examples/qsvdec_gpucopy.c b/doc/examples/qsvdec_gpucopy.c new file mode 100644 index 0000000000..244cf6c6a0 --- /dev/null +++ b/doc/examples/qsvdec_gpucopy.c @@ -0,0 +1,276 @@ +/* + * Copyright (c) 2019 Linjie Fu + * + * HW Acceleration API (video decoding) decode 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 + * QSV-Accelerated H264 decoding GPU Copy example. + * + * @example qsvdec_gpucopy.c + * This example shows how to do QSV decode with GPU Copy + */ + +#include <stdio.h> + +#include <libavcodec/avcodec.h> +#include <libavformat/avformat.h> +#include <libavutil/avassert.h> +#include <libavutil/hwcontext.h> +#include <libavutil/imgutils.h> +#include <libavutil/opt.h> +#include <libavutil/pixdesc.h> + +#include "libavcodec/qsv.h" +#include <sys/time.h> + +static AVBufferRef *hw_device_ctx = NULL; +static enum AVPixelFormat hw_pix_fmt; +static FILE *output_file = NULL; +static int g_frame_count = 0; +int g_avg_fps = 0; +struct timeval pre_timestamp, cur_timestamp; + +static int hw_decoder_init(AVCodecContext *ctx, + const enum AVHWDeviceType type) { + int err = 0; + + if ((err = av_hwdevice_ctx_create(&hw_device_ctx, type, NULL, NULL, 0)) < + 0) { + fprintf(stderr, "Failed to create specified HW device.\n"); + return err; + } + ctx->hw_device_ctx = av_buffer_ref(hw_device_ctx); + + return err; +} + +static enum AVPixelFormat get_hw_format(AVCodecContext *ctx, + const enum AVPixelFormat *pix_fmts) { + const enum AVPixelFormat *p; + + for (p = pix_fmts; *p != -1; p++) { + if (*p == hw_pix_fmt) return *p; + } + + fprintf(stderr, "Failed to get HW surface format.\n"); + return AV_PIX_FMT_NONE; +} + +static int decode_write(AVCodecContext *avctx, AVPacket *packet) { + AVFrame *frame = NULL; + + uint8_t *buffer = NULL; + int size; + int ret = 0; + + ret = avcodec_send_packet(avctx, packet); + if (ret < 0) { + fprintf(stderr, "Error during decoding\n"); + return ret; + } + + while (1) { + if (!(frame = av_frame_alloc())) { + fprintf(stderr, "Can not alloc frame\n"); + ret = AVERROR(ENOMEM); + goto fail; + } + + ret = avcodec_receive_frame(avctx, frame); + if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) { + av_frame_free(&frame); + return 0; + } else if (ret < 0) { + fprintf(stderr, "Error while decoding\n"); + goto fail; + } + + size = av_image_get_buffer_size(frame->format, frame->width, + frame->height, 1); + buffer = av_malloc(size); + if (!buffer) { + fprintf(stderr, "Can not alloc buffer\n"); + ret = AVERROR(ENOMEM); + goto fail; + } + + /* Y data stores in frame->data[0], UV data stores in frame->data[1] */ + ret = av_image_copy_to_buffer( + buffer, size, (const uint8_t *const *)frame->data, + (const int *)frame->linesize, frame->format, frame->width, + frame->height, 1); + if (ret < 0) { + fprintf(stderr, "Can not copy image to buffer\n"); + goto fail; + } + + g_frame_count++; + g_avg_fps++; + gettimeofday(&cur_timestamp, NULL); + + float interval = cur_timestamp.tv_sec - pre_timestamp.tv_sec + + (float)(cur_timestamp.tv_usec - pre_timestamp.tv_usec)/1000000; + if (interval >= 1) { + fprintf( + stderr, "Frame count: %d, avg fps: %f\n", g_frame_count, + (float)g_avg_fps / interval); + g_avg_fps = 0; + pre_timestamp = cur_timestamp; + } + + + if ((ret = fwrite(buffer, 1, size, output_file)) < 0) { + fprintf(stderr, "Failed to dump raw data.\n"); + goto fail; + } + + fail: + av_frame_free(&frame); + av_freep(&buffer); + if (ret < 0) return ret; + } +} + +int main(int argc, char *argv[]) { + AVFormatContext *input_ctx = NULL; + int video_stream, ret; + AVStream *video = NULL; + AVCodecContext *decoder_ctx = NULL; + AVCodec *decoder = NULL; + AVPacket packet; + + gettimeofday(&pre_timestamp, NULL); + + enum AVHWDeviceType type; + int i; + + if (argc < 4) { + fprintf(stderr, "Usage: %s <on/off> <input file> <output file>\n", + argv[0]); + return -1; + } + + type = av_hwdevice_find_type_by_name("qsv"); + if (type == AV_HWDEVICE_TYPE_NONE) { + fprintf(stderr, "Device type qsv is not supported.\n"); + fprintf(stderr, "Available device types:"); + while ((type = av_hwdevice_iterate_types(type)) != + AV_HWDEVICE_TYPE_NONE) + fprintf(stderr, " %s", av_hwdevice_get_type_name(type)); + fprintf(stderr, "\n"); + return -1; + } + + /* open the input file */ + if (avformat_open_input(&input_ctx, argv[2], NULL, NULL) != 0) { + fprintf(stderr, "Cannot open input file '%s'\n", argv[2]); + return -1; + } + + if (avformat_find_stream_info(input_ctx, NULL) < 0) { + fprintf(stderr, "Cannot find input stream information.\n"); + return -1; + } + + /* find the first H.264 video stream */ + for (i = 0; i < input_ctx->nb_streams; i++) { + AVStream *st = input_ctx->streams[i]; + + if (st->codecpar->codec_id == AV_CODEC_ID_H264 && !video) { + video = st; + video_stream = i; + } else + st->discard = AVDISCARD_ALL; + } + if (!video) { + fprintf(stderr, "No H.264 video stream in the input file\n"); + } + + /* initialize the decoder */ + decoder = avcodec_find_decoder_by_name("h264_qsv"); + + if (!decoder) { + fprintf(stderr, "The QSV decoder is not present in libavcodec\n"); + } + + for (i = 0;; i++) { + const AVCodecHWConfig *config = avcodec_get_hw_config(decoder, i); + if (!config) { + fprintf(stderr, "Decoder %s does not support device type %s.\n", + decoder->name, av_hwdevice_get_type_name(type)); + return -1; + } + if (config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX && + config->device_type == type) { + hw_pix_fmt = AV_PIX_FMT_NV12; + break; + } + } + + if (!(decoder_ctx = avcodec_alloc_context3(decoder))) + return AVERROR(ENOMEM); + + /* set gpu_copy option */ + if (!strcmp(argv[1], "on")) + av_opt_set(decoder_ctx->priv_data, "gpu_copy", "on", 0);// MFX_GPUCOPY_ON + else + av_opt_set(decoder_ctx->priv_data, "gpu_copy", "off", 0);// MFX_GPUCOPY_OFF + + if (avcodec_parameters_to_context(decoder_ctx, video->codecpar) < 0) + return -1; + + decoder_ctx->get_format = get_hw_format; + + if (hw_decoder_init(decoder_ctx, type) < 0) return -1; + + if ((ret = avcodec_open2(decoder_ctx, decoder, NULL)) < 0) { + fprintf(stderr, "Failed to open codec for stream #%u\n", video_stream); + return -1; + } + + /* open the file to dump raw data */ + output_file = fopen(argv[3], "w+"); + + /* actual decoding and dump the raw data */ + while (ret >= 0) { + if ((ret = av_read_frame(input_ctx, &packet)) < 0) break; + + if (video_stream == packet.stream_index) + ret = decode_write(decoder_ctx, &packet); + + av_packet_unref(&packet); + } + + /* flush the decoder */ + packet.data = NULL; + packet.size = 0; + ret = decode_write(decoder_ctx, &packet); + av_packet_unref(&packet); + + if (output_file) fclose(output_file); + avcodec_free_context(&decoder_ctx); + avformat_close_input(&input_ctx); + av_buffer_unref(&hw_device_ctx); + + return 0; +} -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".