Write header file with correct extradata

When recording, the header must be written with extradata set to the
content of the very first packet.

Suggested-by: Steve Lhomme <robux4@ycbcr.xyz>

Makefile.CrossWindows

@@ -34,7 +34,7 @@ WIN32_TARGET := $(WIN32_TARGET_DIR)-$(VERSION).zip
 WIN64_TARGET := $(WIN64_TARGET_DIR)-$(VERSION).zip
 
 release: clean zip-win32 zip-win64 sums
-	@echo "Windows archives generated in $(DIST)/"
+	@echo "Release created in $(DIST)/."
 
 clean:
 	$(GRADLE) clean

README.md

@@ -162,7 +162,7 @@ It is possible to record the screen while mirroring:
 
 ```bash
 scrcpy --record file.mp4
-scrcpy -r file.mkv
+scrcpy -r file.mp4
 ```
 
 "Skipped frames" are recorded, even if they are not displayed in real time (for

app/src/command.h

@@ -3,33 +3,33 @@
 
 #include <inttypes.h>
 #include <SDL2/SDL_stdinc.h>
+#include <SDL2/SDL_platform.h>
 
-#ifdef _WIN32
-
-# include <winsock2.h> // not needed here, but must never be included AFTER windows.h
-# include <windows.h>
-# define PRIexitcode "lu"
 // <https://stackoverflow.com/a/44383330/1987178>
+#ifdef _WIN32
+# define PRIexitcode "lu"
 # ifdef _WIN64
 #   define PRIsizet PRIu64
 # else
 #   define PRIsizet PRIu32
 # endif
+#else
+# define PRIsizet "zu"
+# define PRIexitcode "d"
+#endif
+
+#ifdef __WINDOWS__
+# include <winsock2.h> // not needed here, but must never be included AFTER windows.h
+# include <windows.h>
 # define PROCESS_NONE NULL
   typedef HANDLE process_t;
   typedef DWORD exit_code_t;
-
 #else
-
 # include <sys/types.h>
-# define PRIsizet "zu"
-# define PRIexitcode "d"
 # define PROCESS_NONE -1
   typedef pid_t process_t;
   typedef int exit_code_t;
-
 #endif
-
 # define NO_EXIT_CODE -1
 
 enum process_result {

app/src/main.c

@@ -7,13 +7,11 @@
 
 #include "config.h"
 #include "log.h"
-#include "recorder.h"
 
 struct args {
     const char *serial;
     const char *crop;
     const char *record_filename;
-    enum recorder_format record_format;
     SDL_bool fullscreen;
     SDL_bool help;
     SDL_bool version;
@@ -44,9 +42,6 @@ static void usage(const char *arg0) {
         "    -f, --fullscreen\n"
         "        Start in fullscreen.\n"
         "\n"
-        "    -F, --record-format\n"
-        "        Force recording format (either mp4 or mkv).\n"
-        "\n"
         "    -h, --help\n"
         "        Print this help.\n"
         "\n"
@@ -62,8 +57,6 @@ static void usage(const char *arg0) {
         "\n"
         "    -r, --record file.mp4\n"
         "        Record screen to file.\n"
-        "        The format is determined by the -F/--record-format option if\n"
-        "        set, or by the file extension (.mp4 or .mkv).\n"
         "\n"
         "    -s, --serial\n"
         "        The device serial number. Mandatory only if several devices\n"
@@ -215,36 +208,6 @@ static SDL_bool parse_port(char *optarg, Uint16 *port) {
     return SDL_TRUE;
 }
 
-static SDL_bool
-parse_record_format(const char *optarg, enum recorder_format *format) {
-    if (!strcmp(optarg, "mp4")) {
-        *format = RECORDER_FORMAT_MP4;
-        return SDL_TRUE;
-    }
-    if (!strcmp(optarg, "mkv")) {
-        *format = RECORDER_FORMAT_MKV;
-        return SDL_TRUE;
-    }
-    LOGE("Unsupported format: %s (expected mp4 or mkv)", optarg);
-    return SDL_FALSE;
-}
-
-static enum recorder_format
-guess_record_format(const char *filename) {
-    size_t len = strlen(filename);
-    if (len < 4) {
-        return 0;
-    }
-    const char *ext = &filename[len - 4];
-    if (!strcmp(ext, ".mp4")) {
-        return RECORDER_FORMAT_MP4;
-    }
-    if (!strcmp(ext, ".mkv")) {
-        return RECORDER_FORMAT_MKV;
-    }
-    return 0;
-}
-
 static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
     static const struct option long_options[] = {
         {"always-on-top", no_argument,       NULL, 'T'},
@@ -255,14 +218,13 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
         {"max-size",      required_argument, NULL, 'm'},
         {"port",          required_argument, NULL, 'p'},
         {"record",        required_argument, NULL, 'r'},
-        {"record-format", required_argument, NULL, 'f'},
         {"serial",        required_argument, NULL, 's'},
         {"show-touches",  no_argument,       NULL, 't'},
         {"version",       no_argument,       NULL, 'v'},
         {NULL,            0,                 NULL, 0  },
     };
     int c;
-    while ((c = getopt_long(argc, argv, "b:c:fF:hm:p:r:s:tTv", long_options, NULL)) != -1) {
+    while ((c = getopt_long(argc, argv, "b:c:fhm:p:r:s:tTv", long_options, NULL)) != -1) {
         switch (c) {
             case 'b':
                 if (!parse_bit_rate(optarg, &args->bit_rate)) {
@@ -275,11 +237,6 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
             case 'f':
                 args->fullscreen = SDL_TRUE;
                 break;
-            case 'F':
-                if (!parse_record_format(optarg, &args->record_format)) {
-                    return SDL_FALSE;
-                }
-                break;
             case 'h':
                 args->help = SDL_TRUE;
                 break;
@@ -319,21 +276,6 @@ static SDL_bool parse_args(struct args *args, int argc, char *argv[]) {
         LOGE("Unexpected additional argument: %s", argv[index]);
         return SDL_FALSE;
     }
-
-    if (args->record_format && !args->record_filename) {
-        LOGE("Record format specified without recording");
-        return SDL_FALSE;
-    }
-
-    if (args->record_filename && !args->record_format) {
-        args->record_format = guess_record_format(args->record_filename);
-        if (!args->record_format) {
-            LOGE("No format specified for \"%s\" (try with -F mkv)",
-                 args->record_filename);
-            return SDL_FALSE;
-        }
-    }
-
     return SDL_TRUE;
 }
 
@@ -348,7 +290,6 @@ int main(int argc, char *argv[]) {
         .serial = NULL,
         .crop = NULL,
         .record_filename = NULL,
-        .record_format = 0,
         .help = SDL_FALSE,
         .version = SDL_FALSE,
         .show_touches = SDL_FALSE,
@@ -388,7 +329,6 @@ int main(int argc, char *argv[]) {
         .crop = args.crop,
         .port = args.port,
         .record_filename = args.record_filename,
-        .record_format = args.record_format,
         .max_size = args.max_size,
         .bit_rate = args.bit_rate,
         .show_touches = args.show_touches,

app/src/recorder.c

@@ -1,7 +1,6 @@
 #include "recorder.h"
 
 #include <libavutil/time.h>
-#include <SDL2/SDL_assert.h>
 
 #include "config.h"
 #include "log.h"
@@ -16,9 +15,7 @@
 # define LAVF_NEW_CODEC_API
 #endif
 
-static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
-
-static const AVOutputFormat *find_muxer(const char *name) {
+static const AVOutputFormat *find_mp4_muxer(void) {
 #if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(58, 9, 100)
     void *opaque = NULL;
 #endif
@@ -30,13 +27,11 @@ static const AVOutputFormat *find_muxer(const char *name) {
         oformat = av_oformat_next(oformat);
 #endif
         // until null or with name "mp4"
-    } while (oformat && strcmp(oformat->name, name));
+    } while (oformat && strcmp(oformat->name, "mp4"));
     return oformat;
 }
 
-SDL_bool recorder_init(struct recorder *recorder,
-                       const char *filename,
-                       enum recorder_format format,
+SDL_bool recorder_init(struct recorder *recorder, const char *filename,
                        struct size declared_frame_size) {
     recorder->filename = SDL_strdup(filename);
     if (!recorder->filename) {
@@ -44,7 +39,6 @@ SDL_bool recorder_init(struct recorder *recorder,
         return SDL_FALSE;
     }
 
-    recorder->format = format;
     recorder->declared_frame_size = declared_frame_size;
     recorder->header_written = SDL_FALSE;
 
@@ -55,21 +49,10 @@ void recorder_destroy(struct recorder *recorder) {
     SDL_free(recorder->filename);
 }
 
-static const char *
-recorder_get_format_name(enum recorder_format format) {
-    switch (format) {
-        case RECORDER_FORMAT_MP4: return "mp4";
-        case RECORDER_FORMAT_MKV: return "matroska";
-        default: return NULL;
-    }
-}
-
 SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec) {
-    const char *format_name = recorder_get_format_name(recorder->format);
-    SDL_assert(format_name);
-    const AVOutputFormat *format = find_muxer(format_name);
-    if (!format) {
-        LOGE("Could not find muxer");
+    const AVOutputFormat *mp4 = find_mp4_muxer();
+    if (!mp4) {
+        LOGE("Could not find mp4 muxer");
         return SDL_FALSE;
     }
 
@@ -83,7 +66,7 @@ SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec) {
     // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
     // still expects a pointer-to-non-const (it has not be updated accordingly)
     // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
-    recorder->ctx->oformat = (AVOutputFormat *) format;
+    recorder->ctx->oformat = (AVOutputFormat *) mp4;
 
     AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
     if (!ostream) {
@@ -104,6 +87,7 @@ SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec) {
     ostream->codec->width = recorder->declared_frame_size.width;
     ostream->codec->height = recorder->declared_frame_size.height;
 #endif
+    ostream->time_base = (AVRational) {1, 1000000}; // timestamps in us
 
     int ret = avio_open(&recorder->ctx->pb, recorder->filename,
                         AVIO_FLAG_WRITE);
@@ -114,8 +98,6 @@ SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec) {
         return SDL_FALSE;
     }
 
-    LOGI("Recording started to %s file: %s", format_name, recorder->filename);
-
     return SDL_TRUE;
 }
 
@@ -126,16 +108,12 @@ void recorder_close(struct recorder *recorder) {
     }
     avio_close(recorder->ctx->pb);
     avformat_free_context(recorder->ctx);
-
-    const char *format_name = recorder_get_format_name(recorder->format);
-    LOGI("Recording complete to %s file: %s", format_name, recorder->filename);
 }
 
-static SDL_bool
-recorder_write_header(struct recorder *recorder, AVPacket *packet) {
+SDL_bool recorder_write_header(struct recorder *recorder, AVPacket *packet) {
     AVStream *ostream = recorder->ctx->streams[0];
 
-    uint8_t *extradata = av_malloc(packet->size * sizeof(uint8_t));
+    uint8_t *extradata = SDL_malloc(packet->size * sizeof(uint8_t));
     if (!extradata) {
         LOGC("Cannot allocate extradata");
         return SDL_FALSE;
@@ -164,12 +142,6 @@ recorder_write_header(struct recorder *recorder, AVPacket *packet) {
     return SDL_TRUE;
 }
 
-static void
-recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
-    AVStream *ostream = recorder->ctx->streams[0];
-    av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
-}
-
 SDL_bool recorder_write(struct recorder *recorder, AVPacket *packet) {
     if (!recorder->header_written) {
         SDL_bool ok = recorder_write_header(recorder, packet);
@@ -179,6 +151,5 @@ SDL_bool recorder_write(struct recorder *recorder, AVPacket *packet) {
         recorder->header_written = SDL_TRUE;
     }
 
-    recorder_rescale_packet(recorder, packet);
     return av_write_frame(recorder->ctx, packet) >= 0;
 }

app/src/recorder.h

@@ -6,24 +6,15 @@
 
 #include "common.h"
 
-enum recorder_format {
-    RECORDER_FORMAT_MP4 = 1,
-    RECORDER_FORMAT_MKV,
-};
-
 struct recorder {
     char *filename;
-    enum recorder_format format;
     AVFormatContext *ctx;
     struct size declared_frame_size;
     SDL_bool header_written;
 };
 
-SDL_bool recorder_init(struct recorder *recoder,
-                       const char *filename,
-                       enum recorder_format format,
+SDL_bool recorder_init(struct recorder *recoder, const char *filename,
                        struct size declared_frame_size);
-
 void recorder_destroy(struct recorder *recorder);
 
 SDL_bool recorder_open(struct recorder *recorder, AVCodec *input_codec);

app/src/scrcpy.c

@@ -229,10 +229,7 @@ SDL_bool scrcpy(const struct scrcpy_options *options) {
 
     struct recorder *rec = NULL;
     if (options->record_filename) {
-        if (!recorder_init(&recorder,
-                           options->record_filename,
-                           options->record_format,
-                           frame_size)) {
+        if (!recorder_init(&recorder, options->record_filename, frame_size)) {
             ret = SDL_FALSE;
             server_stop(&server);
             goto finally_destroy_file_handler;

app/src/scrcpy.h

@@ -2,13 +2,11 @@
 #define SCRCPY_H
 
 #include <SDL2/SDL_stdinc.h>
-#include <recorder.h>
 
 struct scrcpy_options {
     const char *serial;
     const char *crop;
     const char *record_filename;
-    enum recorder_format record_format;
     Uint16 port;
     Uint16 max_size;
     Uint32 bit_rate;

app/src/str_util.c

@@ -3,11 +3,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-#ifdef _WIN32
-# include <windows.h>
-# include <tchar.h>
-#endif
-
 size_t xstrncpy(char *dest, const char *src, size_t n) {
     size_t i;
     for (i = 0; i < n - 1 && src[i] != '\0'; ++i)
@@ -52,22 +47,3 @@ char *strquote(const char *src) {
     quoted[len + 2] = '\0';
     return quoted;
 }
-
-#ifdef _WIN32
-
-wchar_t *utf8_to_wide_char(const char *utf8) {
-    int len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
-    if (!len) {
-        return NULL;
-    }
-
-    wchar_t *wide = malloc(len * sizeof(wchar_t));
-    if (!wide) {
-        return NULL;
-    }
-
-    MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wide, len);
-    return wide;
-}
-
-#endif

app/src/str_util.h

@@ -20,10 +20,4 @@ size_t xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
 // returns the new allocated string, to be freed by the caller
 char *strquote(const char *src);
 
-#ifdef _WIN32
-// convert a UTF-8 string to a wchar_t string
-// returns the new allocated string, to be freed by the caller
-wchar_t *utf8_to_wide_char(const char *utf8);
-#endif
-
 #endif

app/src/sys/win/command.c

@@ -18,7 +18,7 @@ static int build_cmd(char *cmd, size_t len, const char *const argv[]) {
 }
 
 enum process_result cmd_execute(const char *path, const char *const argv[], HANDLE *handle) {
-    STARTUPINFOW si;
+    STARTUPINFO si;
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
     si.cb = sizeof(si);
@@ -29,19 +29,12 @@ enum process_result cmd_execute(const char *path, const char *const argv[], HAND
         return PROCESS_ERROR_GENERIC;
     }
 
-    wchar_t *wide = utf8_to_wide_char(cmd);
-    if (!wide) {
-        LOGC("Cannot allocate wide char string");
-        return PROCESS_ERROR_GENERIC;
-    }
-
 #ifdef WINDOWS_NOCONSOLE
     int flags = CREATE_NO_WINDOW;
 #else
     int flags = 0;
 #endif
-    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, flags, NULL, NULL, &si, &pi)) {
-        free(wide);
+    if (!CreateProcess(NULL, cmd, NULL, NULL, FALSE, flags, NULL, NULL, &si, &pi)) {
         *handle = NULL;
         if (GetLastError() == ERROR_FILE_NOT_FOUND) {
             return PROCESS_ERROR_MISSING_BINARY;
@@ -49,7 +42,6 @@ enum process_result cmd_execute(const char *path, const char *const argv[], HAND
         return PROCESS_ERROR_GENERIC;
     }
 
-    free(wide);
     *handle = pi.hProcess;
     return PROCESS_SUCCESS;
 }

app/tests/test_control_event_serialize.c

@@ -87,13 +87,13 @@ static void test_serialize_mouse_event(void) {
 
     unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
-    assert(size == 18);
+    assert(size == 14);
 
     const unsigned char expected[] = {
         0x02, // CONTROL_EVENT_TYPE_MOUSE
         0x00, // AKEY_EVENT_ACTION_DOWN
         0x00, 0x00, 0x00, 0x01, // AMOTION_EVENT_BUTTON_PRIMARY
-        0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x04, 0x02, // 260 1026
+        0x01, 0x04, 0x04, 0x02, // 260 1026
         0x04, 0x38, 0x07, 0x80, // 1080 1920
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
@@ -120,11 +120,11 @@ static void test_serialize_scroll_event(void) {
 
     unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
-    assert(size == 21);
+    assert(size == 17);
 
     const unsigned char expected[] = {
         0x03, // CONTROL_EVENT_TYPE_SCROLL
-        0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x04, 0x02, // 260 1026
+        0x01, 0x04, 0x04, 0x02, // 260 1026
         0x04, 0x38, 0x07, 0x80, // 1080 1920
         0x00, 0x00, 0x00, 0x01, // 1
         0xFF, 0xFF, 0xFF, 0xFF, // -1

meson.build

@@ -1,5 +1,5 @@
 project('scrcpy', 'c',
-        version: '1.7',
+        version: '1.6',
         meson_version: '>= 0.37',
         default_options: 'c_std=c11')
 

release.sh

@@ -1,35 +0,0 @@
-#!/bin/bash
-set -e
-
-# build and test locally
-BUILDDIR=build_release
-rm -rf "$BUILDDIR"
-meson "$BUILDDIR" --buildtype release --strip -Db_lto=true
-cd "$BUILDDIR"
-ninja
-ninja test
-cd -
-
-# build Windows releases
-make -f Makefile.CrossWindows
-
-# the generated server must be the same everywhere
-cmp "$BUILDDIR/server/scrcpy-server.jar" dist/scrcpy-win32/scrcpy-server.jar
-cmp "$BUILDDIR/server/scrcpy-server.jar" dist/scrcpy-win64/scrcpy-server.jar
-
-# get version name
-TAG=$(git describe --tags --always)
-
-# create release directory
-mkdir -p "release-$TAG"
-cp "$BUILDDIR/server/scrcpy-server.jar" "release-$TAG/scrcpy-server-$TAG.jar"
-cp "dist/scrcpy-win32-$TAG.zip" "release-$TAG/"
-cp "dist/scrcpy-win64-$TAG.zip" "release-$TAG/"
-
-# generate checksums
-cd "release-$TAG"
-sha256sum "scrcpy-server-$TAG.jar" \
-          "scrcpy-win32-$TAG.zip" \
-          "scrcpy-win64-$TAG.zip" > SHA256SUMS.txt
-
-echo "Release generated in release-$TAG/"

server/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 8
-        versionName "1.7"
+        versionCode 7
+        versionName "1.6"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {