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Tero Rintaluoma authored
Adds following targets to configure script to support RVCT compilation without operating system support (for Profiler or bare metal images). - armv5te-none-rvct - armv6-none-rvct - armv7-none-rvct To strip OS specific parts from the code "os_support"-config was added to script and CONFIG_OS_SUPPORT flag is used in the code to exclude OS specific parts such as OS specific includes and function calls for timers and threads etc. This was done to enable RVCT compilation for profiling purposes or running the image on bare metal target with Lauterbach. Removed separate AREA directives for READONLY data in armv6 and neon assembly files to fix the RVCT compilation. Otherwise "ldr <reg>, =label" syntax would have been needed to prevent linker errors. This syntax is not supported by older gnu assemblers. Change-Id: I14f4c68529e8c27397502fbc3010a54e505ddb43
11a222f5
/* * Copyright (c) 2013 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */#include "./webmdec.h"#include <stdarg.h>#include "third_party/nestegg/include/nestegg/nestegg.h"static int nestegg_read_cb(void *buffer, size_t length, void *userdata) { FILE *f = userdata; if (fread(buffer, 1, length, f) < length) { if (ferror(f)) return -1; if (feof(f)) return 0; } return 1;}static int nestegg_seek_cb(int64_t offset, int whence, void *userdata) { switch (whence) { case NESTEGG_SEEK_SET: whence = SEEK_SET; break; case NESTEGG_SEEK_CUR: whence = SEEK_CUR; break; case NESTEGG_SEEK_END: whence = SEEK_END; break; }; return fseek(userdata, (int32_t)offset, whence) ? -1 : 0;}static int64_t nestegg_tell_cb(void *userdata) { return ftell(userdata);}static void nestegg_log_cb(nestegg *context, unsigned int severity, char const *format, ...) { va_list ap; va_start(ap, format); vfprintf(stderr, format, ap); fprintf(stderr, "\n"); va_end(ap);}int file_is_webm(struct WebmInputContext *webm_ctx, struct VpxInputContext *vpx_ctx) { uint32_t i, n; int track_type = -1; int codec_id; nestegg_io io = {nestegg_read_cb, nestegg_seek_cb, nestegg_tell_cb, 0}; nestegg_video_params params; io.userdata = vpx_ctx->file; if (nestegg_init(&webm_ctx->nestegg_ctx, io, NULL, -1)) goto fail;7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
if (nestegg_track_count(webm_ctx->nestegg_ctx, &n))
goto fail;
for (i = 0; i < n; i++) {
track_type = nestegg_track_type(webm_ctx->nestegg_ctx, i);
if (track_type == NESTEGG_TRACK_VIDEO)
break;
else if (track_type < 0)
goto fail;
}
codec_id = nestegg_track_codec_id(webm_ctx->nestegg_ctx, i);
if (codec_id == NESTEGG_CODEC_VP8) {
vpx_ctx->fourcc = VP8_FOURCC;
} else if (codec_id == NESTEGG_CODEC_VP9) {
vpx_ctx->fourcc = VP9_FOURCC;
} else {
fatal("Not VPx video, quitting.\n");
}
webm_ctx->video_track = i;
if (nestegg_track_video_params(webm_ctx->nestegg_ctx, i, ¶ms))
goto fail;
vpx_ctx->framerate.denominator = 0;
vpx_ctx->framerate.numerator = 0;
vpx_ctx->width = params.width;
vpx_ctx->height = params.height;
return 1;
fail:
webm_ctx->nestegg_ctx = NULL;
rewind(vpx_ctx->file);
return 0;
}
int webm_read_frame(struct WebmInputContext *webm_ctx,
uint8_t **buffer,
size_t *bytes_in_buffer,
size_t *buffer_size) {
if (webm_ctx->chunk >= webm_ctx->chunks) {
uint32_t track;
do {
/* End of this packet, get another. */
if (webm_ctx->pkt) {
nestegg_free_packet(webm_ctx->pkt);
webm_ctx->pkt = NULL;
}
if (nestegg_read_packet(webm_ctx->nestegg_ctx, &webm_ctx->pkt) <= 0 ||
nestegg_packet_track(webm_ctx->pkt, &track)) {
return 1;
}
} while (track != webm_ctx->video_track);
if (nestegg_packet_count(webm_ctx->pkt, &webm_ctx->chunks))
return 1;
webm_ctx->chunk = 0;
}
if (nestegg_packet_data(webm_ctx->pkt, webm_ctx->chunk,
buffer, bytes_in_buffer)) {
return 1;
}
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webm_ctx->chunk++;
return 0;
}
int webm_guess_framerate(struct WebmInputContext *webm_ctx,
struct VpxInputContext *vpx_ctx) {
uint32_t i;
uint64_t tstamp = 0;
/* Check to see if we can seek before we parse any data. */
if (nestegg_track_seek(webm_ctx->nestegg_ctx, webm_ctx->video_track, 0)) {
warn("Failed to guess framerate (no Cues), set to 30fps.\n");
vpx_ctx->framerate.numerator = 30;
vpx_ctx->framerate.denominator = 1;
return 0;
}
/* Guess the framerate. Read up to 1 second, or 50 video packets,
* whichever comes first.
*/
for (i = 0; tstamp < 1000000000 && i < 50;) {
nestegg_packet *pkt;
uint32_t track;
if (nestegg_read_packet(webm_ctx->nestegg_ctx, &pkt) <= 0)
break;
nestegg_packet_track(pkt, &track);
if (track == webm_ctx->video_track) {
nestegg_packet_tstamp(pkt, &tstamp);
++i;
}
nestegg_free_packet(pkt);
}
if (nestegg_track_seek(webm_ctx->nestegg_ctx, webm_ctx->video_track, 0))
goto fail;
vpx_ctx->framerate.numerator = (i - 1) * 1000000;
vpx_ctx->framerate.denominator = (int)(tstamp / 1000);
return 0;
fail:
nestegg_destroy(webm_ctx->nestegg_ctx);
webm_ctx->nestegg_ctx = NULL;
rewind(vpx_ctx->file);
return 1;
}
void webm_free(struct WebmInputContext *webm_ctx) {
if (webm_ctx && webm_ctx->nestegg_ctx) {
if (webm_ctx->pkt)
nestegg_free_packet(webm_ctx->pkt);
nestegg_destroy(webm_ctx->nestegg_ctx);
}
}