ref: 7199f7878371c3d38e77896aa3d3bcf6c08ce764
parent: 5e5f6db6570112cd14098408dc07e8130f345ab0
author: Jerome Jiang <jianj@google.com>
date: Mon Jan 28 10:49:42 EST 2019
add y4m support to vp9 example encoders. vp9_spatial_svc_encoder and vpx_temporal_svc_encoder. Change-Id: I8dfa1dfad83c83a26ddac4e7c57b5f1ff161e588
--- a/examples.mk
+++ b/examples.mk
@@ -72,6 +72,7 @@
vpxdec.SRCS += vpx/vpx_integer.h
vpxdec.SRCS += args.c args.h
vpxdec.SRCS += ivfdec.c ivfdec.h
+vpxdec.SRCS += y4minput.c y4minput.h
vpxdec.SRCS += tools_common.c tools_common.h
vpxdec.SRCS += y4menc.c y4menc.h
ifeq ($(CONFIG_LIBYUV),yes)
@@ -113,6 +114,7 @@
EXAMPLES-$(CONFIG_VP9_ENCODER) += vp9_spatial_svc_encoder.c
vp9_spatial_svc_encoder.SRCS += args.c args.h
vp9_spatial_svc_encoder.SRCS += ivfenc.c ivfenc.h
+vp9_spatial_svc_encoder.SRCS += y4minput.c y4minput.h
vp9_spatial_svc_encoder.SRCS += tools_common.c tools_common.h
vp9_spatial_svc_encoder.SRCS += video_common.h
vp9_spatial_svc_encoder.SRCS += video_writer.h video_writer.c
@@ -129,6 +131,7 @@
EXAMPLES-$(CONFIG_ENCODERS) += vpx_temporal_svc_encoder.c
vpx_temporal_svc_encoder.SRCS += ivfenc.c ivfenc.h
+vpx_temporal_svc_encoder.SRCS += y4minput.c y4minput.h
vpx_temporal_svc_encoder.SRCS += tools_common.c tools_common.h
vpx_temporal_svc_encoder.SRCS += video_common.h
vpx_temporal_svc_encoder.SRCS += video_writer.h video_writer.c
@@ -138,6 +141,7 @@
EXAMPLES-$(CONFIG_DECODERS) += simple_decoder.c
simple_decoder.GUID = D3BBF1E9-2427-450D-BBFF-B2843C1D44CC
simple_decoder.SRCS += ivfdec.h ivfdec.c
+simple_decoder.SRCS += y4minput.c y4minput.h
simple_decoder.SRCS += tools_common.h tools_common.c
simple_decoder.SRCS += video_common.h
simple_decoder.SRCS += video_reader.h video_reader.c
@@ -147,6 +151,7 @@
simple_decoder.DESCRIPTION = Simplified decoder loop
EXAMPLES-$(CONFIG_DECODERS) += postproc.c
postproc.SRCS += ivfdec.h ivfdec.c
+postproc.SRCS += y4minput.c y4minput.h
postproc.SRCS += tools_common.h tools_common.c
postproc.SRCS += video_common.h
postproc.SRCS += video_reader.h video_reader.c
@@ -158,6 +163,7 @@
EXAMPLES-$(CONFIG_DECODERS) += decode_to_md5.c
decode_to_md5.SRCS += md5_utils.h md5_utils.c
decode_to_md5.SRCS += ivfdec.h ivfdec.c
+decode_to_md5.SRCS += y4minput.c y4minput.h
decode_to_md5.SRCS += tools_common.h tools_common.c
decode_to_md5.SRCS += video_common.h
decode_to_md5.SRCS += video_reader.h video_reader.c
@@ -168,6 +174,7 @@
decode_to_md5.DESCRIPTION = Frame by frame MD5 checksum
EXAMPLES-$(CONFIG_ENCODERS) += simple_encoder.c
simple_encoder.SRCS += ivfenc.h ivfenc.c
+simple_encoder.SRCS += y4minput.c y4minput.h
simple_encoder.SRCS += tools_common.h tools_common.c
simple_encoder.SRCS += video_common.h
simple_encoder.SRCS += video_writer.h video_writer.c
@@ -176,6 +183,7 @@
simple_encoder.DESCRIPTION = Simplified encoder loop
EXAMPLES-$(CONFIG_VP9_ENCODER) += vp9_lossless_encoder.c
vp9_lossless_encoder.SRCS += ivfenc.h ivfenc.c
+vp9_lossless_encoder.SRCS += y4minput.c y4minput.h
vp9_lossless_encoder.SRCS += tools_common.h tools_common.c
vp9_lossless_encoder.SRCS += video_common.h
vp9_lossless_encoder.SRCS += video_writer.h video_writer.c
@@ -184,6 +192,7 @@
vp9_lossless_encoder.DESCRIPTION = Simplified lossless VP9 encoder
EXAMPLES-$(CONFIG_ENCODERS) += twopass_encoder.c
twopass_encoder.SRCS += ivfenc.h ivfenc.c
+twopass_encoder.SRCS += y4minput.c y4minput.h
twopass_encoder.SRCS += tools_common.h tools_common.c
twopass_encoder.SRCS += video_common.h
twopass_encoder.SRCS += video_writer.h video_writer.c
@@ -192,6 +201,7 @@
twopass_encoder.DESCRIPTION = Two-pass encoder loop
EXAMPLES-$(CONFIG_DECODERS) += decode_with_drops.c
decode_with_drops.SRCS += ivfdec.h ivfdec.c
+decode_with_drops.SRCS += y4minput.c y4minput.h
decode_with_drops.SRCS += tools_common.h tools_common.c
decode_with_drops.SRCS += video_common.h
decode_with_drops.SRCS += video_reader.h video_reader.c
@@ -202,6 +212,7 @@
decode_with_drops.DESCRIPTION = Drops frames while decoding
EXAMPLES-$(CONFIG_ENCODERS) += set_maps.c
set_maps.SRCS += ivfenc.h ivfenc.c
+set_maps.SRCS += y4minput.c y4minput.h
set_maps.SRCS += tools_common.h tools_common.c
set_maps.SRCS += video_common.h
set_maps.SRCS += video_writer.h video_writer.c
@@ -210,6 +221,7 @@
set_maps.DESCRIPTION = Set active and ROI maps
EXAMPLES-$(CONFIG_VP8_ENCODER) += vp8cx_set_ref.c
vp8cx_set_ref.SRCS += ivfenc.h ivfenc.c
+vp8cx_set_ref.SRCS += y4minput.c y4minput.h
vp8cx_set_ref.SRCS += tools_common.h tools_common.c
vp8cx_set_ref.SRCS += video_common.h
vp8cx_set_ref.SRCS += video_writer.h video_writer.c
@@ -221,6 +233,7 @@
ifeq ($(CONFIG_DECODERS),yes)
EXAMPLES-yes += vp9cx_set_ref.c
vp9cx_set_ref.SRCS += ivfenc.h ivfenc.c
+vp9cx_set_ref.SRCS += y4minput.c y4minput.h
vp9cx_set_ref.SRCS += tools_common.h tools_common.c
vp9cx_set_ref.SRCS += video_common.h
vp9cx_set_ref.SRCS += video_writer.h video_writer.c
@@ -233,6 +246,7 @@
ifeq ($(CONFIG_LIBYUV),yes)
EXAMPLES-$(CONFIG_VP8_ENCODER) += vp8_multi_resolution_encoder.c
vp8_multi_resolution_encoder.SRCS += ivfenc.h ivfenc.c
+vp8_multi_resolution_encoder.SRCS += y4minput.c y4minput.h
vp8_multi_resolution_encoder.SRCS += tools_common.h tools_common.c
vp8_multi_resolution_encoder.SRCS += video_writer.h video_writer.c
vp8_multi_resolution_encoder.SRCS += vpx_ports/msvc.h
--- a/examples/vp8_multi_resolution_encoder.c
+++ b/examples/vp8_multi_resolution_encoder.c
@@ -61,7 +61,7 @@
int (*read_frame_p)(FILE *f, vpx_image_t *img);
-static int read_frame(FILE *f, vpx_image_t *img) {+static int mulres_read_frame(FILE *f, vpx_image_t *img) {size_t nbytes, to_read;
int res = 1;
@@ -75,7 +75,7 @@
return res;
}
-static int read_frame_by_row(FILE *f, vpx_image_t *img) {+static int mulres_read_frame_by_row(FILE *f, vpx_image_t *img) {size_t nbytes, to_read;
int res = 1;
int plane;
@@ -471,9 +471,9 @@
die("Failed to allocate image", cfg[i].g_w, cfg[i].g_h);if (raw[0].stride[VPX_PLANE_Y] == (int)raw[0].d_w)
- read_frame_p = read_frame;
+ read_frame_p = mulres_read_frame;
else
- read_frame_p = read_frame_by_row;
+ read_frame_p = mulres_read_frame_by_row;
for (i = 0; i < NUM_ENCODERS; i++)
if (outfile[i]) write_ivf_file_header(outfile[i], &cfg[i], 0);
--- a/examples/vp9_spatial_svc_encoder.c
+++ b/examples/vp9_spatial_svc_encoder.c
@@ -30,6 +30,8 @@
#include "vpx/vpx_encoder.h"
#include "../vpxstats.h"
#include "vp9/encoder/vp9_encoder.h"
+#include "./y4minput.h"
+
#define OUTPUT_RC_STATS 1
static const arg_def_t skip_frames_arg =
@@ -161,7 +163,6 @@
static const uint32_t default_threads = 0; // zero means use library default.
typedef struct {- const char *input_filename;
const char *output_filename;
uint32_t frames_to_code;
uint32_t frames_to_skip;
@@ -393,10 +394,16 @@
if (argv[0] == NULL || argv[1] == 0) {usage_exit();
}
- app_input->input_filename = argv[0];
+ app_input->input_ctx.filename = argv[0];
app_input->output_filename = argv[1];
free(argv);
+ open_input_file(&app_input->input_ctx);
+ if (app_input->input_ctx.file_type == FILE_TYPE_Y4M) {+ enc_cfg->g_w = app_input->input_ctx.width;
+ enc_cfg->g_h = app_input->input_ctx.height;
+ }
+
if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
enc_cfg->g_h % 2)
die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);@@ -752,7 +759,6 @@
vpx_codec_err_t res;
int pts = 0; /* PTS starts at 0 */
int frame_duration = 1; /* 1 timebase tick per frame */
- FILE *infile = NULL;
int end_of_stream = 0;
int frames_received = 0;
#if OUTPUT_RC_STATS
@@ -773,6 +779,13 @@
memset(&layer_id, 0, sizeof(vpx_svc_layer_id_t));
memset(&rc, 0, sizeof(struct RateControlStats));
exec_name = argv[0];
+
+ /* Setup default input stream settings */
+ app_input.input_ctx.framerate.numerator = 30;
+ app_input.input_ctx.framerate.denominator = 1;
+ app_input.input_ctx.only_i420 = 1;
+ app_input.input_ctx.bit_depth = 0;
+
parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);
// Allocate image buffer
@@ -789,9 +802,6 @@
}
#endif // CONFIG_VP9_HIGHBITDEPTH
- if (!(infile = fopen(app_input.input_filename, "rb")))
- die("Failed to open %s for reading\n", app_input.input_filename);-
// Initialize codec
if (vpx_svc_init(&svc_ctx, &codec, vpx_codec_vp9_cx(), &enc_cfg) !=
VPX_CODEC_OK)
@@ -835,7 +845,8 @@
#endif
// skip initial frames
- for (i = 0; i < app_input.frames_to_skip; ++i) vpx_img_read(&raw, infile);
+ for (i = 0; i < app_input.frames_to_skip; ++i)
+ read_frame(&app_input.input_ctx, &raw);
if (svc_ctx.speed != -1)
vpx_codec_control(&codec, VP8E_SET_CPUUSED, svc_ctx.speed);
@@ -875,7 +886,8 @@
// layers, with SL0 only has TL0, and SL1 has both TL0 and TL1. This example
// uses the extended API.
int example_pattern = 0;
- if (frame_cnt >= app_input.frames_to_code || !vpx_img_read(&raw, infile)) {+ if (frame_cnt >= app_input.frames_to_code ||
+ !read_frame(&app_input.input_ctx, &raw)) {// We need one extra vpx_svc_encode call at end of stream to flush
// encoder and get remaining data
end_of_stream = 1;
@@ -1091,7 +1103,9 @@
}
printf("Processed %d frames\n", frame_cnt);- fclose(infile);
+
+ close_input_file(&app_input.input_ctx);
+
#if OUTPUT_RC_STATS
if (svc_ctx.output_rc_stat) {printout_rate_control_summary(&rc, &enc_cfg, frame_cnt);
--- a/examples/vpx_temporal_svc_encoder.c
+++ b/examples/vpx_temporal_svc_encoder.c
@@ -19,6 +19,7 @@
#include <string.h>
#include "./vpx_config.h"
+#include "./y4minput.h"
#include "../vpx_ports/vpx_timer.h"
#include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
@@ -594,7 +595,7 @@
#endif
vpx_svc_layer_id_t layer_id;
const VpxInterface *encoder = NULL;
- FILE *infile = NULL;
+ struct VpxInputContext input_ctx;
struct RateControlMetrics rc;
int64_t cx_time = 0;
const int min_args_base = 13;
@@ -611,6 +612,13 @@
zero(rc.layer_target_bitrate);
memset(&layer_id, 0, sizeof(vpx_svc_layer_id_t));
+ memset(&input_ctx, 0, sizeof(input_ctx));
+ /* Setup default input stream settings */
+ input_ctx.framerate.numerator = 30;
+ input_ctx.framerate.denominator = 1;
+ input_ctx.only_i420 = 1;
+ input_ctx.bit_depth = 0;
+
exec_name = argv[0];
// Check usage and arguments.
if (argc < min_args) {@@ -754,9 +762,18 @@
// Set to layer_target_bitrate for highest layer (total bitrate).
cfg.rc_target_bitrate = rc.layer_target_bitrate[cfg.ts_number_layers - 1];
- // Open input file.
- if (!(infile = fopen(argv[1], "rb"))) {- die("Failed to open %s for reading", argv[1]);+ input_ctx.filename = argv[1];
+ open_input_file(&input_ctx);
+
+ if (input_ctx.file_type == FILE_TYPE_Y4M) {+ if (input_ctx.width != cfg.g_w || input_ctx.height != cfg.g_h) {+ die("Incorrect width or height: %d x %d", cfg.g_w, cfg.g_h);+ }
+ if (input_ctx.framerate.numerator != cfg.g_timebase.den ||
+ input_ctx.framerate.denominator != cfg.g_timebase.num) {+ die("Incorrect framerate: numerator %d denominator %d",+ cfg.g_timebase.num, cfg.g_timebase.den);
+ }
}
framerate = cfg.g_timebase.den / cfg.g_timebase.num;
@@ -865,7 +882,7 @@
}
flags = layer_flags[frame_cnt % flag_periodicity];
if (layering_mode == 0) flags = 0;
- frame_avail = vpx_img_read(&raw, infile);
+ frame_avail = read_frame(&input_ctx, &raw);
if (frame_avail) ++rc.layer_input_frames[layer_id.temporal_layer_id];
vpx_usec_timer_start(&timer);
if (vpx_codec_encode(&codec, frame_avail ? &raw : NULL, pts, 1, flags,
@@ -933,7 +950,7 @@
++frame_cnt;
pts += frame_duration;
}
- fclose(infile);
+ close_input_file(&input_ctx);
printout_rate_control_summary(&rc, &cfg, frame_cnt);
printf("\n"); printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",--- a/tools_common.c
+++ b/tools_common.c
@@ -46,6 +46,14 @@
va_end(ap); \
} while (0)
+#if CONFIG_ENCODERS
+/* Swallow warnings about unused results of fread/fwrite */
+static size_t wrap_fread(void *ptr, size_t size, size_t nmemb, FILE *stream) {+ return fread(ptr, size, nmemb, stream);
+}
+#define fread wrap_fread
+#endif
+
FILE *set_binary_mode(FILE *stream) {(void)stream;
#if defined(_WIN32) || defined(__OS2__)
@@ -263,6 +271,88 @@
return kMaxPSNR;
}
}
+
+#if CONFIG_ENCODERS
+int read_frame(struct VpxInputContext *input_ctx, vpx_image_t *img) {+ FILE *f = input_ctx->file;
+ y4m_input *y4m = &input_ctx->y4m;
+ int shortread = 0;
+
+ if (input_ctx->file_type == FILE_TYPE_Y4M) {+ if (y4m_input_fetch_frame(y4m, f, img) < 1) return 0;
+ } else {+ shortread = read_yuv_frame(input_ctx, img);
+ }
+
+ return !shortread;
+}
+
+int file_is_y4m(const char detect[4]) {+ if (memcmp(detect, "YUV4", 4) == 0) {+ return 1;
+ }
+ return 0;
+}
+
+int fourcc_is_ivf(const char detect[4]) {+ if (memcmp(detect, "DKIF", 4) == 0) {+ return 1;
+ }
+ return 0;
+}
+
+void open_input_file(struct VpxInputContext *input) {+ /* Parse certain options from the input file, if possible */
+ input->file = strcmp(input->filename, "-") ? fopen(input->filename, "rb")
+ : set_binary_mode(stdin);
+
+ if (!input->file) fatal("Failed to open input file");+
+ if (!fseeko(input->file, 0, SEEK_END)) {+ /* Input file is seekable. Figure out how long it is, so we can get
+ * progress info.
+ */
+ input->length = ftello(input->file);
+ rewind(input->file);
+ }
+
+ /* Default to 1:1 pixel aspect ratio. */
+ input->pixel_aspect_ratio.numerator = 1;
+ input->pixel_aspect_ratio.denominator = 1;
+
+ /* For RAW input sources, these bytes will applied on the first frame
+ * in read_frame().
+ */
+ input->detect.buf_read = fread(input->detect.buf, 1, 4, input->file);
+ input->detect.position = 0;
+
+ if (input->detect.buf_read == 4 && file_is_y4m(input->detect.buf)) {+ if (y4m_input_open(&input->y4m, input->file, input->detect.buf, 4,
+ input->only_i420) >= 0) {+ input->file_type = FILE_TYPE_Y4M;
+ input->width = input->y4m.pic_w;
+ input->height = input->y4m.pic_h;
+ input->pixel_aspect_ratio.numerator = input->y4m.par_n;
+ input->pixel_aspect_ratio.denominator = input->y4m.par_d;
+ input->framerate.numerator = input->y4m.fps_n;
+ input->framerate.denominator = input->y4m.fps_d;
+ input->fmt = input->y4m.vpx_fmt;
+ input->bit_depth = input->y4m.bit_depth;
+ } else {+ fatal("Unsupported Y4M stream.");+ }
+ } else if (input->detect.buf_read == 4 && fourcc_is_ivf(input->detect.buf)) {+ fatal("IVF is not supported as input.");+ } else {+ input->file_type = FILE_TYPE_RAW;
+ }
+}
+
+void close_input_file(struct VpxInputContext *input) {+ fclose(input->file);
+ if (input->file_type == FILE_TYPE_Y4M) y4m_input_close(&input->y4m);
+}
+#endif
// TODO(debargha): Consolidate the functions below into a separate file.
#if CONFIG_VP9_HIGHBITDEPTH
--- a/tools_common.h
+++ b/tools_common.h
@@ -152,6 +152,14 @@
double sse_to_psnr(double samples, double peak, double mse);
+#if CONFIG_ENCODERS
+int read_frame(struct VpxInputContext *input_ctx, vpx_image_t *img);
+int file_is_y4m(const char detect[4]);
+int fourcc_is_ivf(const char detect[4]);
+void open_input_file(struct VpxInputContext *input);
+void close_input_file(struct VpxInputContext *input);
+#endif
+
#if CONFIG_VP9_HIGHBITDEPTH
void vpx_img_upshift(vpx_image_t *dst, vpx_image_t *src, int input_shift);
void vpx_img_downshift(vpx_image_t *dst, vpx_image_t *src, int down_shift);
--- a/vpxdec.c
+++ b/vpxdec.c
@@ -265,8 +265,8 @@
return 1;
}
-static int read_frame(struct VpxDecInputContext *input, uint8_t **buf,
- size_t *bytes_in_buffer, size_t *buffer_size) {+static int dec_read_frame(struct VpxDecInputContext *input, uint8_t **buf,
+ size_t *bytes_in_buffer, size_t *buffer_size) { switch (input->vpx_input_ctx->file_type) {#if CONFIG_WEBM_IO
case FILE_TYPE_WEBM:
@@ -806,7 +806,7 @@
if (arg_skip) fprintf(stderr, "Skipping first %d frames.\n", arg_skip);
while (arg_skip) {- if (read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) break;
+ if (dec_read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) break;
arg_skip--;
}
@@ -837,7 +837,7 @@
frame_avail = 0;
if (!stop_after || frame_in < stop_after) {- if (!read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {+ if (!dec_read_frame(&input, &buf, &bytes_in_buffer, &buffer_size)) {frame_avail = 1;
frame_in++;
--- a/vpxenc.c
+++ b/vpxenc.c
@@ -50,12 +50,6 @@
#endif
#include "./y4minput.h"
-/* Swallow warnings about unused results of fread/fwrite */
-static size_t wrap_fread(void *ptr, size_t size, size_t nmemb, FILE *stream) {- return fread(ptr, size, nmemb, stream);
-}
-#define fread wrap_fread
-
static size_t wrap_fwrite(const void *ptr, size_t size, size_t nmemb,
FILE *stream) {return fwrite(ptr, size, nmemb, stream);
@@ -95,34 +89,6 @@
va_end(ap);
}
-static int read_frame(struct VpxInputContext *input_ctx, vpx_image_t *img) {- FILE *f = input_ctx->file;
- y4m_input *y4m = &input_ctx->y4m;
- int shortread = 0;
-
- if (input_ctx->file_type == FILE_TYPE_Y4M) {- if (y4m_input_fetch_frame(y4m, f, img) < 1) return 0;
- } else {- shortread = read_yuv_frame(input_ctx, img);
- }
-
- return !shortread;
-}
-
-static int file_is_y4m(const char detect[4]) {- if (memcmp(detect, "YUV4", 4) == 0) {- return 1;
- }
- return 0;
-}
-
-static int fourcc_is_ivf(const char detect[4]) {- if (memcmp(detect, "DKIF", 4) == 0) {- return 1;
- }
- return 0;
-}
-
static const arg_def_t help =
ARG_DEF(NULL, "help", 0, "Show usage options and exit");
static const arg_def_t debugmode =
@@ -1018,57 +984,6 @@
warn("Enforcing one-pass encoding in realtime mode\n");global->passes = 1;
}
-}
-
-static void open_input_file(struct VpxInputContext *input) {- /* Parse certain options from the input file, if possible */
- input->file = strcmp(input->filename, "-") ? fopen(input->filename, "rb")
- : set_binary_mode(stdin);
-
- if (!input->file) fatal("Failed to open input file");-
- if (!fseeko(input->file, 0, SEEK_END)) {- /* Input file is seekable. Figure out how long it is, so we can get
- * progress info.
- */
- input->length = ftello(input->file);
- rewind(input->file);
- }
-
- /* Default to 1:1 pixel aspect ratio. */
- input->pixel_aspect_ratio.numerator = 1;
- input->pixel_aspect_ratio.denominator = 1;
-
- /* For RAW input sources, these bytes will applied on the first frame
- * in read_frame().
- */
- input->detect.buf_read = fread(input->detect.buf, 1, 4, input->file);
- input->detect.position = 0;
-
- if (input->detect.buf_read == 4 && file_is_y4m(input->detect.buf)) {- if (y4m_input_open(&input->y4m, input->file, input->detect.buf, 4,
- input->only_i420) >= 0) {- input->file_type = FILE_TYPE_Y4M;
- input->width = input->y4m.pic_w;
- input->height = input->y4m.pic_h;
- input->pixel_aspect_ratio.numerator = input->y4m.par_n;
- input->pixel_aspect_ratio.denominator = input->y4m.par_d;
- input->framerate.numerator = input->y4m.fps_n;
- input->framerate.denominator = input->y4m.fps_d;
- input->fmt = input->y4m.vpx_fmt;
- input->bit_depth = input->y4m.bit_depth;
- } else
- fatal("Unsupported Y4M stream.");- } else if (input->detect.buf_read == 4 && fourcc_is_ivf(input->detect.buf)) {- fatal("IVF is not supported as input.");- } else {- input->file_type = FILE_TYPE_RAW;
- }
-}
-
-static void close_input_file(struct VpxInputContext *input) {- fclose(input->file);
- if (input->file_type == FILE_TYPE_Y4M) y4m_input_close(&input->y4m);
}
static struct stream_state *new_stream(struct VpxEncoderConfig *global,