From 5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Tue, 7 Apr 2020 23:30:51 -0400 Subject: Move aom source to a sub-directory under media/libaom There is no damned reason to treat this differently than any other media lib given its license and there never was. --- third_party/aom/examples/simple_encoder.c | 249 ------------------------------ 1 file changed, 249 deletions(-) delete mode 100644 third_party/aom/examples/simple_encoder.c (limited to 'third_party/aom/examples/simple_encoder.c') diff --git a/third_party/aom/examples/simple_encoder.c b/third_party/aom/examples/simple_encoder.c deleted file mode 100644 index 01a37cf0c..000000000 --- a/third_party/aom/examples/simple_encoder.c +++ /dev/null @@ -1,249 +0,0 @@ -/* - * Copyright (c) 2016, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. - */ - -// Simple Encoder -// ============== -// -// This is an example of a simple encoder loop. It takes an input file in -// YV12 format, passes it through the encoder, and writes the compressed -// frames to disk in IVF format. Other decoder examples build upon this -// one. -// -// The details of the IVF format have been elided from this example for -// simplicity of presentation, as IVF files will not generally be used by -// your application. In general, an IVF file consists of a file header, -// followed by a variable number of frames. Each frame consists of a frame -// header followed by a variable length payload. The length of the payload -// is specified in the first four bytes of the frame header. The payload is -// the raw compressed data. -// -// Standard Includes -// ----------------- -// For encoders, you only have to include `aom_encoder.h` and then any -// header files for the specific codecs you use. In this case, we're using -// aom. -// -// Getting The Default Configuration -// --------------------------------- -// Encoders have the notion of "usage profiles." For example, an encoder -// may want to publish default configurations for both a video -// conferencing application and a best quality offline encoder. These -// obviously have very different default settings. Consult the -// documentation for your codec to see if it provides any default -// configurations. All codecs provide a default configuration, number 0, -// which is valid for material in the vacinity of QCIF/QVGA. -// -// Updating The Configuration -// --------------------------------- -// Almost all applications will want to update the default configuration -// with settings specific to their usage. Here we set the width and height -// of the video file to that specified on the command line. We also scale -// the default bitrate based on the ratio between the default resolution -// and the resolution specified on the command line. -// -// Initializing The Codec -// ---------------------- -// The encoder is initialized by the following code. -// -// Encoding A Frame -// ---------------- -// The frame is read as a continuous block (size width * height * 3 / 2) -// from the input file. If a frame was read (the input file has not hit -// EOF) then the frame is passed to the encoder. Otherwise, a NULL -// is passed, indicating the End-Of-Stream condition to the encoder. The -// `frame_cnt` is reused as the presentation time stamp (PTS) and each -// frame is shown for one frame-time in duration. The flags parameter is -// unused in this example. - -// Forced Keyframes -// ---------------- -// Keyframes can be forced by setting the AOM_EFLAG_FORCE_KF bit of the -// flags passed to `aom_codec_control()`. In this example, we force a -// keyframe every frames. Note, the output stream can -// contain additional keyframes beyond those that have been forced using the -// AOM_EFLAG_FORCE_KF flag because of automatic keyframe placement by the -// encoder. -// -// Processing The Encoded Data -// --------------------------- -// Each packet of type `AOM_CODEC_CX_FRAME_PKT` contains the encoded data -// for this frame. We write a IVF frame header, followed by the raw data. -// -// Cleanup -// ------- -// The `aom_codec_destroy` call frees any memory allocated by the codec. -// -// Error Handling -// -------------- -// This example does not special case any error return codes. If there was -// an error, a descriptive message is printed and the program exits. With -// few exeptions, aom_codec functions return an enumerated error status, -// with the value `0` indicating success. -// -// Error Resiliency Features -// ------------------------- -// Error resiliency is controlled by the g_error_resilient member of the -// configuration structure. Use the `decode_with_drops` example to decode with -// frames 5-10 dropped. Compare the output for a file encoded with this example -// versus one encoded with the `simple_encoder` example. - -#include -#include -#include - -#include "aom/aom_encoder.h" -#include "common/tools_common.h" -#include "common/video_writer.h" - -static const char *exec_name; - -void usage_exit(void) { - fprintf(stderr, - "Usage: %s " - " \n" - "See comments in simple_encoder.c for more information.\n", - exec_name); - exit(EXIT_FAILURE); -} - -static int encode_frame(aom_codec_ctx_t *codec, aom_image_t *img, - int frame_index, int flags, AvxVideoWriter *writer) { - int got_pkts = 0; - aom_codec_iter_t iter = NULL; - const aom_codec_cx_pkt_t *pkt = NULL; - const aom_codec_err_t res = - aom_codec_encode(codec, img, frame_index, 1, flags); - if (res != AOM_CODEC_OK) die_codec(codec, "Failed to encode frame"); - - while ((pkt = aom_codec_get_cx_data(codec, &iter)) != NULL) { - got_pkts = 1; - - if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) { - const int keyframe = (pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0; - if (!aom_video_writer_write_frame(writer, pkt->data.frame.buf, - pkt->data.frame.sz, - pkt->data.frame.pts)) { - die_codec(codec, "Failed to write compressed frame"); - } - printf(keyframe ? "K" : "."); - fflush(stdout); - } - } - - return got_pkts; -} - -// TODO(tomfinegan): Improve command line parsing and add args for bitrate/fps. -int main(int argc, char **argv) { - FILE *infile = NULL; - aom_codec_ctx_t codec; - aom_codec_enc_cfg_t cfg; - int frame_count = 0; - aom_image_t raw; - aom_codec_err_t res; - AvxVideoInfo info; - AvxVideoWriter *writer = NULL; - const AvxInterface *encoder = NULL; - const int fps = 30; - const int bitrate = 200; - int keyframe_interval = 0; - int max_frames = 0; - int frames_encoded = 0; - const char *codec_arg = NULL; - const char *width_arg = NULL; - const char *height_arg = NULL; - const char *infile_arg = NULL; - const char *outfile_arg = NULL; - const char *keyframe_interval_arg = NULL; - - exec_name = argv[0]; - - // Clear explicitly, as simply assigning "{ 0 }" generates - // "missing-field-initializers" warning in some compilers. - memset(&info, 0, sizeof(info)); - - if (argc != 9) die("Invalid number of arguments"); - - codec_arg = argv[1]; - width_arg = argv[2]; - height_arg = argv[3]; - infile_arg = argv[4]; - outfile_arg = argv[5]; - keyframe_interval_arg = argv[6]; - max_frames = (int)strtol(argv[8], NULL, 0); - - encoder = get_aom_encoder_by_name(codec_arg); - if (!encoder) die("Unsupported codec."); - - info.codec_fourcc = encoder->fourcc; - info.frame_width = (int)strtol(width_arg, NULL, 0); - info.frame_height = (int)strtol(height_arg, NULL, 0); - info.time_base.numerator = 1; - info.time_base.denominator = fps; - - if (info.frame_width <= 0 || info.frame_height <= 0 || - (info.frame_width % 2) != 0 || (info.frame_height % 2) != 0) { - die("Invalid frame size: %dx%d", info.frame_width, info.frame_height); - } - - if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, info.frame_width, - info.frame_height, 1)) { - die("Failed to allocate image."); - } - - keyframe_interval = (int)strtol(keyframe_interval_arg, NULL, 0); - if (keyframe_interval < 0) die("Invalid keyframe interval value."); - - printf("Using %s\n", aom_codec_iface_name(encoder->codec_interface())); - - res = aom_codec_enc_config_default(encoder->codec_interface(), &cfg, 0); - if (res) die_codec(&codec, "Failed to get default codec config."); - - cfg.g_w = info.frame_width; - cfg.g_h = info.frame_height; - cfg.g_timebase.num = info.time_base.numerator; - cfg.g_timebase.den = info.time_base.denominator; - cfg.rc_target_bitrate = bitrate; - cfg.g_error_resilient = (aom_codec_er_flags_t)strtoul(argv[7], NULL, 0); - - writer = aom_video_writer_open(outfile_arg, kContainerIVF, &info); - if (!writer) die("Failed to open %s for writing.", outfile_arg); - - if (!(infile = fopen(infile_arg, "rb"))) - die("Failed to open %s for reading.", infile_arg); - - if (aom_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0)) - die_codec(&codec, "Failed to initialize encoder"); - - // Encode frames. - while (aom_img_read(&raw, infile)) { - int flags = 0; - if (keyframe_interval > 0 && frame_count % keyframe_interval == 0) - flags |= AOM_EFLAG_FORCE_KF; - encode_frame(&codec, &raw, frame_count++, flags, writer); - frames_encoded++; - if (max_frames > 0 && frames_encoded >= max_frames) break; - } - - // Flush encoder. - while (encode_frame(&codec, NULL, -1, 0, writer)) continue; - - printf("\n"); - fclose(infile); - printf("Processed %d frames.\n", frame_count); - - aom_img_free(&raw); - if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec."); - - aom_video_writer_close(writer); - - return EXIT_SUCCESS; -} -- cgit v1.2.3