From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <ffmpeg-devel-bounces@ffmpeg.org>
Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100])
	by master.gitmailbox.com (Postfix) with ESMTP id 7350942FEC
	for <ffmpegdev@gitmailbox.com>; Thu, 16 Jun 2022 20:07:08 +0000 (UTC)
Received: from [127.0.1.1] (localhost [127.0.0.1])
	by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 26BE568B8C6;
	Thu, 16 Jun 2022 23:04:02 +0300 (EEST)
Received: from mail0.khirnov.net (red.khirnov.net [176.97.15.12])
 by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 90E7568B850
 for <ffmpeg-devel@ffmpeg.org>; Thu, 16 Jun 2022 23:03:41 +0300 (EEST)
Received: from localhost (localhost [IPv6:::1])
 by mail0.khirnov.net (Postfix) with ESMTP id 86D27240512
 for <ffmpeg-devel@ffmpeg.org>; Thu, 16 Jun 2022 22:03:39 +0200 (CEST)
Received: from mail0.khirnov.net ([IPv6:::1])
 by localhost (mail0.khirnov.net [IPv6:::1]) (amavisd-new, port 10024)
 with ESMTP id D_3KlKcVwZE9 for <ffmpeg-devel@ffmpeg.org>;
 Thu, 16 Jun 2022 22:03:39 +0200 (CEST)
Received: from libav.khirnov.net (libav.khirnov.net
 [IPv6:2a00:c500:561:201::7])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
 client-signature RSA-PSS (2048 bits) client-digest SHA256)
 (Client CN "libav.khirnov.net",
 Issuer "smtp.khirnov.net SMTP CA" (verified OK))
 by mail0.khirnov.net (Postfix) with ESMTPS id 0537F24055A
 for <ffmpeg-devel@ffmpeg.org>; Thu, 16 Jun 2022 22:03:34 +0200 (CEST)
Received: by libav.khirnov.net (Postfix, from userid 1000)
 id 794913A0A3A; Thu, 16 Jun 2022 22:03:30 +0200 (CEST)
From: Anton Khirnov <anton@khirnov.net>
To: ffmpeg-devel@ffmpeg.org
Date: Thu, 16 Jun 2022 21:55:00 +0200
Message-Id: <20220616195534.5278-1-anton@khirnov.net>
X-Mailer: git-send-email 2.34.1
MIME-Version: 1.0
Subject: [FFmpeg-devel] [PATCH 01/35] fftools/ffmpeg_mux: add private muxer
 context
X-BeenThere: ffmpeg-devel@ffmpeg.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: FFmpeg development discussions and patches <ffmpeg-devel.ffmpeg.org>
List-Unsubscribe: <https://ffmpeg.org/mailman/options/ffmpeg-devel>,
 <mailto:ffmpeg-devel-request@ffmpeg.org?subject=unsubscribe>
List-Archive: <https://ffmpeg.org/pipermail/ffmpeg-devel>
List-Post: <mailto:ffmpeg-devel@ffmpeg.org>
List-Help: <mailto:ffmpeg-devel-request@ffmpeg.org?subject=help>
List-Subscribe: <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>,
 <mailto:ffmpeg-devel-request@ffmpeg.org?subject=subscribe>
Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: ffmpeg-devel-bounces@ffmpeg.org
Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org>
Archived-At: <https://master.gitmailbox.com/ffmpegdev/20220616195534.5278-1-anton@khirnov.net/>
List-Archive: <https://master.gitmailbox.com/ffmpegdev/>
List-Post: <mailto:ffmpegdev@gitmailbox.com>

Move header_written into it, which is not (and should not be) used by
any code outside of ffmpeg_mux.

In the future this context will contain more muxer-private state that
should not be visible to other code.
---
 fftools/ffmpeg.h     |  6 ++++--
 fftools/ffmpeg_mux.c | 26 ++++++++++++++++++++++----
 fftools/ffmpeg_opt.c |  6 ++++++
 3 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 69a368b8d1..c6ffe9fdf6 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -581,9 +581,12 @@ typedef struct OutputStream {
     int64_t error[4];
 } OutputStream;
 
+typedef struct Muxer Muxer;
+
 typedef struct OutputFile {
     int index;
 
+    Muxer                *mux;
     const AVOutputFormat *format;
 
     AVFormatContext *ctx;
@@ -594,8 +597,6 @@ typedef struct OutputFile {
     uint64_t limit_filesize; /* filesize limit expressed in bytes */
 
     int shortest;
-
-    int header_written;
 } OutputFile;
 
 extern InputStream **input_streams;
@@ -694,6 +695,7 @@ int hw_device_setup_for_filter(FilterGraph *fg);
 
 int hwaccel_decode_init(AVCodecContext *avctx);
 
+int of_muxer_init(OutputFile *of);
 /* open the muxer when all the streams are initialized */
 int of_check_init(OutputFile *of);
 int of_write_trailer(OutputFile *of);
diff --git a/fftools/ffmpeg_mux.c b/fftools/ffmpeg_mux.c
index a55fd18f8f..e47a55c4e9 100644
--- a/fftools/ffmpeg_mux.c
+++ b/fftools/ffmpeg_mux.c
@@ -32,6 +32,10 @@
 #include "libavformat/avformat.h"
 #include "libavformat/avio.h"
 
+struct Muxer {
+    int header_written;
+};
+
 static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
 {
     int i;
@@ -64,7 +68,7 @@ void of_write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost,
         ost->frame_number++;
     }
 
-    if (!of->header_written) {
+    if (!of->mux->header_written) {
         AVPacket *tmp_pkt;
         /* the muxer is not initialized yet, buffer the packet */
         if (!av_fifo_can_write(ost->muxing_queue)) {
@@ -182,7 +186,7 @@ static int print_sdp(void)
     AVFormatContext **avc;
 
     for (i = 0; i < nb_output_files; i++) {
-        if (!output_files[i]->header_written)
+        if (!output_files[i]->mux->header_written)
             return 0;
     }
 
@@ -246,7 +250,7 @@ int of_check_init(OutputFile *of)
         return ret;
     }
     //assert_avoptions(of->opts);
-    of->header_written = 1;
+    of->mux->header_written = 1;
 
     av_dump_format(of->ctx, of->index, of->ctx->url, 1);
     nb_output_dumped++;
@@ -282,7 +286,7 @@ int of_write_trailer(OutputFile *of)
 {
     int ret;
 
-    if (!of->header_written) {
+    if (!of->mux->header_written) {
         av_log(NULL, AV_LOG_ERROR,
                "Nothing was written into output file %d (%s), because "
                "at least one of its streams received no packets.\n",
@@ -313,5 +317,19 @@ void of_close(OutputFile **pof)
     avformat_free_context(s);
     av_dict_free(&of->opts);
 
+    av_freep(&of->mux);
+
     av_freep(pof);
 }
+
+int of_muxer_init(OutputFile *of)
+{
+    Muxer *mux = av_mallocz(sizeof(*mux));
+
+    if (!mux)
+        return AVERROR(ENOMEM);
+
+    of->mux  = mux;
+
+    return 0;
+}
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 398067da96..ab8d307c3c 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -2947,6 +2947,12 @@ loop_end:
         exit_program(1);
     }
 
+    err = of_muxer_init(of);
+    if (err < 0) {
+        av_log(NULL, AV_LOG_FATAL, "Error initializing internal muxing state\n");
+        exit_program(1);
+    }
+
     return 0;
 }
 
-- 
2.34.1

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".